© ISO 2017 Plastics — Thermoplastic polyester (TP) moulding and extrusion materials — Part 1 Designation system and basis for specifications Plastiques — Matériaux polyesters thermoplastiques (TP) pou[.]
INTERNATIONAL STANDARD ISO 20028-1 First edition 2017-03 Plastics — Thermoplastic polyester (TP) moulding and extrusion materials — Part 1: Designation system and basis for specifications Plastiques — Matériaux polyesters thermoplastiques (TP) pour moulage et extrusion — Partie 1: Système de désignation et base de spécification Reference number ISO 20028-1:2017(E) © ISO 2017 ISO 20028-1:2017(E) COPYRIGHT PROTECTED DOCUMENT © ISO 2017, Published in Switzerland All rights reserved Unless otherwise specified, no part o f this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission Permission can be requested from either ISO at the address below or ISO’s member body in the country o f the requester ISO copyright o ffice Ch de Blandonnet • CP 401 CH-1214 Vernier, Geneva, Switzerland Tel +41 22 749 01 11 Fax +41 22 749 09 47 copyright@iso.org www.iso.org ii © ISO 2017 – All rights reserved ISO 002 8-1 : 01 7(E) Page Contents iv Introduction v Scope Normative references Terms and definitions Designation system 4.1 General 4.2 Data block 4.3 Data block 4.4 Data block 4.5 Data block 4.5.1 General f 4.6 Data block Examples of designations f Annex A (normative) Designation of thermoplastic polyesters Bibliography Foreword Vis co s ity numb er Tens ile mo dulus o elas ticity D es ignatio n o nly D es ignatio n trans o rmed into a s p ecificatio n © ISO 2017 – All rights reserved iii ISO 20028-1:2017(E) Foreword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies) The work o f preparing International Standards is normally carried out through ISO technical committees Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters o f electrotechnical standardization The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part In particular the different approval criteria needed for the di fferent types o f ISO documents should be noted This document was dra fted in accordance with the editorial rules of the ISO/IEC Directives, Part (see www.iso org/directives) Attention is drawn to the possibility that some o f the elements o f this document may be the subject o f patent rights ISO shall not be held responsible for identi fying any or all such patent rights Details o f any patent rights identified during the development o f the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso org/patents) Any trade name used in this document is in formation given for the convenience o f users and does not constitute an endorsement For an explanation on the meaning o f ISO specific terms and expressions related to formity assessment, as well as information about ISO’s adherence to the World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT) see the following URL: www.iso.org/iso/foreword.html This document was prepared by Technical Committee ISO/TC 61, Plastics, Subcommittee SC 9, Thermoplastic materials This first edition o f ISO 20028-1 cancels and replaces ISO 7792-1:2012, which has been technically revised to introduce a new designation system The revised designation system is published under a new ISO number, as many existing documents re fer to ISO 7792-1 I f the existing ISO 7792-1 would be replaced by the new designation system, these documents would re fer to the incorrect designation system In order to give users time to switch from ISO 7792-1 to ISO 20028-1, any designation system according to ISO 7792-1 is to be phased out in to 10 years A list of all parts in the ISO 20028 series can be found on the ISO website iv © ISO 2017 – All rights reserved ISO 002 8-1:2 017(E) Introduction I S O 79 -1 i s complex and e s no t fit with da i ly prac tice anymore I n prac tice, I S O 10 43 and I S O 14 69 are, i n combi nation, “i mprop erly” b ei ng u s e d a s a de s ignation s ys tem for, for example, marki ng T he m o f th i s revi s ion i s to s i mpl i fy the d ata blo ck s ys tem a nd to conne c t more to I S O 10 43 and I S O 114 69, where the fi rs t two blo cks a re u s e d © ISO 2017 – All rights reserved for generic identi fication and marki ng o f pro duc ts v INTERNATIONAL STANDARD ISO 20028-1:2017(E) Plastics — Thermoplastic polyester (TP) moulding and extrusion materials — Part 1: Designation system and basis for specifications Scope This c u ment e s tabl i s he s a s ys tem wh ich c an b e u s e d as the b as i s and ex tr u s ion based on for of p oly(e thylene for de s ignation s p e ci fic ation s thermoplas tic p olye s ter ( T P) materia l, for mou ld i ng I t covers p olye s ter homop olymers terephth a late) (PE T ) , p oly( butylene terephtha late) (PB T ) , p oly(c yclohe x ylene d i me thylene terephtha l ate) (P C T ) , p oly(e thylene naphtha late) (PE N ) , p oly( butylene naphth a late s) (PB N ) a nd o ther T P-typ e s a nd cop olye s ters o f variou s comp o s ition s extrusion T he typ e s o f thermopla s tic p olye s ter are d i fferenti ate d from for mou ld i ng a nd e ach o ther b y a cla s s i fic ation s ys tem b a s e d on appropriate level s o f the de s ignator y prop er tie s: a) vi s co s ity nu mb er; b) ten s i le mo du lu s o f el as ticity; and on information about the intended application and/or method of processing, important properties, add itive s , colorants , fi l lers a nd rei n forc i ng materia l s T h i s de s ignation s ys tem i s appl ic able to thermopl as tic p olye s ter homop olymers and cop olymers I t app l ie s to materi a l s re ady mo d i fie d by colorants , for fi l lers norma l u s e i n the form and o ther add itive s o f p owder, granu le s or p el le ts , un mo d i fie d or This c u ment e s no t apply to the s atu rate d p olye s ter/e s ter and p olye ther/e s ter thermopla s tic ela s tomers covere d b y I S O 02 It is no t i ntende d to i mply th at materi a l s havi ng the s ame de s ignation give ne ce s s ari ly the s a me performance This document does not provide engineering data, performance data or data on processing cond ition s wh ich c an b e re qu i re d to s p e c i fy a materi a l I f s uch add itiona l prop er tie s a re re qu i re d, they are i ntende d to b e de term i ne d i n accord ance with the te s t me tho d s s p e c i fie d i n I S O 02 -2 , i f s u itable In order to de s ignate a thermopla s tic p olye s ter materi a l requirements are to be given in data block (see 3.1) to me e t p ar tic u lar s p e ci fic ation s , the Normative references T he fol lowi ng c u ments are re ferre d to i n the tex t i n s uch a way th at s ome or a l l o f thei r content s titute s re qu i rements o f th i s c u ment For date d re ference s , on ly the e d ition cite d appl ie s For u ndate d re ference s , the late s t e d ition o f the re ference d c ument (i nclud i ng a ny amend ments) appl ie s ISO 1043-1, Plastics — Symbols and abbreviated terms — Part 1: Basic polymers and their special characteristics ISO 1043-2, Plastics — Symbols and abbreviated terms — Part 2: Fillers and reinforcing materials ISO 1628-5, Plastics — Determination of the viscosity of polymers in dilute solution using capillary viscometers — Part 5: Thermoplastic polyester (TP) homopolymers and copolymers ISO 20028-2, Plastics — Thermoplastic polyester (TP) moulding and extrusion materials — Part 2: Preparation of test specimens and determination of properties © ISO 2017 – All rights reserved ISO 002 8-1 : 01 7(E) ASTM D5927, Standard Classification System for and Basis for Specifications for Thermoplastic Polyester (TPES) Injection and Extrusion Materials Based on ISO Test Methods Terms and definitions No term s a nd defi n ition s are l i s te d i n th i s c ument ISO and IEC maintain terminological databases for use in standardization at the following addresses: — IEC Electropedia: available at http://www.electropedia org/ — ISO Online browsing platform: available at http://www.iso org/obp Designation system 4.1 General T he de s ignation s ys tem for thermopla s tic s i s b a s e d on the Description Block International (optional) Standard number Data block block fol lowi ng s ta ndard i z e d p attern D es ignation I dentity b lo ck Individual item block Data block Data block Data block Data block T he de s ignation s i s ts o f an op tiona l de s c rip tion blo ck, re ad i ng “T hermopla s tic s ”, and an identity block comprising the International Standard number and an individual-item block For unambiguous f information — Data block 1: f f 4.2) — Data block 2: Position 1: Fillers or reinforcing materials and their nominal content (see 4.3) de s ignation, the i nd ividua l-item blo ck i s s ub d ivide d i nto five data blo cks compri s i ng the I denti fic ation o the pla s tic by its s ymb ol PE T, PB T, PC T, PE N , PB N or T P ol lowi ng or a l l s uch p olye s ters and cop olye s ters i n genera l , i n accordance with I S O 10 43 -1 (s e e Po s ition : D e cla ration o f re c yclate (RE C ) pla s tic s and thei r contents i f de s i re d — Data block 3: Position 1: Intended application and/or method of processing (see 4.4) Po s ition s to 8: I mp or ta nt prop er tie s , add itive s and s upplementa r y i n formation — Data block 4: — Data block 5: (see 4.4) D e s ignator y prop er tie s (s e e 4.5) For the pur p o s e o f s p e ci fic ation s , a fi fth data b lo ck contai n s appropri ate i n formation (see 4.6) T he fi rs t ch arac ter o f the i nd i vidua l item blo ck sh a l l b e a hyphen T he five data blo cks sh a l l b e s ep a rate d from e ach o ther b y a com ma I f a data blo ck i s no t u s e d , th i s sh a l l b e i nd ic ate d b y doubl i ng the s ep a ration s ign, i e b y two com mas (, ,) Term i na l com mas may b e om itte d NO TE 4.2 D ata b lo cks a nd , when s ep a rate d b y a hyp hen , fo r m the p a r t m a rki ng s ymb ol Data block I n th i s data blo ck, a fter the hyphen, thermopla s tic p olye s ters are identi fie d u s i ng the s ymb ol s and designations listed in Table and Table 2 © ISO 2017 – All rights reserved ISO 002 8-1 : 01 7(E) Table — Symbols indicating the chemical structure of polyes ter materials in data block Symb ol PET, TP 2T PTT, TP 3T PBT, TP 4T PCT, TP CHT PEN, TP 2N PBN, TP 4N TP 26 TP 4I TP CH10 a Name and chemical identification Poly(ethylene terephthalate): polyester based on ethylene glycol and terephthalic acid (or its ester) Poly(trimethylene terephthalate): polyester based on 1,3-propanediol and terephthalic acid (or its ester) Poly(butylene terephthalate): polyester based on 1,4-butanediol and terephthalic acid (or its ester) Poly(cyclohexylenedimethylene terephthalate): polyester based on cyclohexanedimethanol and terephthalic acid (or its ester) Poly(ethylene naphthalate): polyester based on ethylene glycol and 2,6-naphthalenedicarbo xylic acid (or its ester) Poly(butylene naphthalate): polyester based on 1,4-butanediol and 2,6-naphthalenedicarbo xylic acid (or its ester) Poly(ethylene adipate): polyester based on ethylene glycol and adipic acid Poly(butylene isophthalate): polyester based on 1,4-butanediol and isophthalic acid Polyester based on cyclohexanedimethanol and sebacic acid See Annex A (Designation o f thermoplastic polyesters) a Table — Symbols indicating the chemical structure of copolyes ter materials in data block (examples) Symb ol TP 6I/6T TP BAI/BAT TP 2T/CHT a Chemical identification Copolyester based on hexanediol, isophthalic acid and terephthalic acid Copolyester based on bisphenol A, isophthalic acid and terephthalic acid Copolyester based on ethylene glycol, cyclohexanedimethanol and terephthalic acid (or its derivates) TP 2T/2I Copolyester based on ethylene glycol, terephthalic acid and isophthalic acid (or its ester) Copolyester based on ethylene glycol, 1,6-hexanediol, neopentyl glycol, terephthalic acid, TP 2/6/NG// isophthalic acid and adipic acids T/I/6 The following two designations include an indication of the mass content ratio: TP 2T/26 Copolyester based on 90 % (mass by mass) ethylene glycol and terephthalic acid and 10 % (mass (90/10) by mass) ethylene glycol and adipic acid TP NGT/6I Copolyester based on 75 % (mass by mass) neopentyl glycol and terephthalic acid and 25 % (75/25) (mass by mass) 1,6-hexanediol and isophthalic acid a See Annex A (Designation o f thermoplastic polyesters) Blends o f thermoplastic polyesters or thermoplastic polyesters with other polymers are identified using the symbols for the basic polymers separated by a plus sign EXAMPLE 4.3 PBT + ASA for a blend o f poly(butylene terephthalate) and acrylonitrile/styrene/acrylate Data block In this data block, the type o f filler and/or rein forcing material is represented by a single code-letter in position and its physical form by a second code-letter in position 2, the code-letters being as specified in Table Subsequently (without a space), the actual content may be given by a two-figure code-number in positions and Mixtures o f materials and/or forms may be indicated by combining the relevant codes using the sign “+” and placing the whole between parentheses followed by the total filler content EXAMPLE A mixture o f 25 % (mass by mass) o f glass fibres (GF) and 10 % (mass by mass) mineral powder (MD) would be indicated by (GF25+MD10) © ISO 2017 – All rights reserved ISO 20028-1:2017(E) In the second position o f this data block, recyclate declaration is represented by symbol “REC” and by following the content between parentheses, if desirable EXAMPLE A mixture o f 50% (mass by mass) o f recyclate would be indicated by REC(50) Table — Code-letters for fillers and rein forcing materials in data block Code-letter Material Code-letter Form B Boron B Beads, spheres, balls a C Carbon D Powder G Glass F Fibre K Calcium carbonate G Ground a b M Mineral , metal H Whiskers a S Synthetic, organic X Not specified T Talc Z Others X Not specified Z Others a a These materials may be further defined a fter position o f the data block by their chemical symbol, for example, or additional symbols defined in ISO 1043-2 or by additional symbols agreed between the interested parties b Metal fillers shall be identified by their chemical symbol (in capital letters) a fter the mass content For example, % steel whiskers may be designated “MH05FE” 4.4 Data block In this data block, information about intended application and/or method of processing is given in position and information about important properties, additives and colour in positions to The code-letters used are specified in Table I f in formation is presented in positions to and no specific in formation is given in position 1, the letter X shall be inserted in position Table — Code-letters used in data block Code-letter A B C D E F G H K L M R S X Position Adhesive Blow moulding Calendering Disc manufacture Extrusion Extrusion o f films General use Coating Cable and wire coating Monofilament extrusion Injection moulding Rotational moulding Sintering No indication Code-letter A B C D E F G H L M N P R S Positions to Processing stabilized Antiblocking Coloured Powder Expandable Special burning characteristics Granules Heat-ageing stabilized Light or weather stabilized Nucleated Natural (no colour added) Impact modified Mould release agent Lubricated © ISO 2017 – All rights reserved ISO 20028-1:2017(E) Table (continued) Code-letter Position Code-letter T W Z Positions to Transparent S tabi l i z e d aga i n s t hyd rol ys i s Antistatic 4.5 Data block 4.5.1 General I n th i s data blo ck, the range o f de s ignator y prop er ty i s repre s ente d by a two -figu re co de -nu mb er (see 4.5.2 ) , the range o f de s ignator y prop er ty b y a th re e -figure co de -nu mb er (s e e nu mb ers a re s ep arate d If a prop er ty va lue from fa l l s 4.5.3) The code- e ach o ther b y hyphen s on or ne a r a nge l i m it, manu fac tu rer sh a l l the s tate wh ich nge wi l l designate the material If subsequent individual test values lie on, or on either side of, the limit because of manufacturing tolerances, the designation is not affected NO TE Not all the co mb i n ation s o f the va lue s o f the de s ign ato r y pro p er tie s a re p rovide d b y c u rrentl y ava i l ab le p ol ymers 4.5.2 Viscosity number T he vi s co s ity nu mb er s l l b e de term i ne d i n accordance with I S O 162 -5 , u s i ng 0/5 phenol/1 , - dichlorobenzene for PET and m -cresol for PBT T he p o s s ible va lue s o f vi s co s ity nu mb er are d ivide d i nto nge s , e ach repre s ente d b y a two -figu re co de -numb er a s s p e c i fie d i n Table Table — Code-numbers used for viscosity number in data block Code-number Range of viscosity number ml/g 03 05 07 09 11 13 15 17 NO TE ≤ 40 > b ut ≤ > b ut ≤ > but ≤ 10 >10 b ut ≤ >1 b ut ≤ 14 >14 b ut ≤ 16 >16 but ≤ Vi s co s ity nu mb ers de ter m i ne d i n o ther s ol vents c a n b e conver te d i nto vi s co s ity nu mb ers de ter m i ne d in phenol/1,2-dichlorobenzene using the following formulae For phenol/1,1,2,2-tetrachloroethane (50/50): x = 0,93 y + 1,87 For phenol/1,1,2,2-tetrachloroethane (60/40): x = 1,20 y For o -chlorophenol: x = 1,22 y - 10,24 For dichloroacetic acid: x = 1,20 y - 18,07 where − 13,34 x i s the vi s co s ity nu mb er i n p henol/1 , - d ich lorob en z ene (5 0/5 0) ; © ISO 2017 – All rights reserved ISO 002 8-1 : 01 7(E) y i s the vi s co s ity nu mb er i n the a lter n ati ve s ol vent NO TE Vi s co s ity nu mb ers de ter m i ne d i n o ther s ol vents c a n b e conver te d i nto vi s co s ity nu mb ers de ter m i ne d in m -cresol using the following formulae For phenol/1,1,2,2-tetrachloroethane (50/50): x = 0,70 y + 5,59 For phenol/1,1,2,2-tetrachloroethane (60/40): x = 0,57y + 29,22 For o -chlorophenol: x = 0,85 y + 3,14 For dichloroacetic acid: x = 0,70 y + 7,34 For phenol/1,2-dichlorobenzene: x = 0,75 y + 0,96 where x i s the vi s co s ity nu mb er i n m - c re s ol; y i s the vi s co s ity nu mb er i n the a lter n ati ve s ol vent For P C T, the vi s co s ity nu mb er s l l b e de term i ne d u s i ng phenol/1 ,1 , , -te trach loro e th ane (6 0/4 0) as the solvent For amorphou s PE N , the vi s co s ity nu mb er s l l b e de term i ne d u s i ng phenol/1 ,1 , , -te trach loro e thane (6 0/4 0) as the s olvent, a nd solvent for c r ys ta l l i ne PE N , phenol/2 ,4, -trich lorophenol (6 0/4 0) i s the s p e ci fie d For PB N , the vi s co s ity nu mb er s l l b e de term i ne d u s i ng phenol/1 ,1 , , -te trach loro e th ane (6 0/4 0) as the solvent For o ther T P homop olymers and cop olymers , the u s e o f 4.5 m -cresol is preferred Tensile modulus of elasticity T he ten s i le mo du lu s o f ela s tic ity s l l b e de term i ne d i n accorda nce with I S O 02 -2 T he p o s s ible va lue s o f ten s i le mo du lu s o f ela s tic ity a re d ivide d i nto range s , e ach repre s ente d b y a th re e -figu re co de -nu mb er as s p e ci fie d i n Table Table — Code-numbers used for tensile modulus of elas ticity in data block Code-numb er 01 02 Range of tensi le modulus of elas ticity MPa 1 but ≤ 0 03 >2 b ut ≤ 004 >3 but ≤ 45 0 05 > 45 but ≤ 0 07 > 0 but ≤ 0 010 > 0 b ut ≤ 0 02 >1 0 but ≤ 0 03 >2 0 b ut ≤ 0 40 >3 0 but ≤ 0 05 > 0 b ut ≤ 5 0 60 >5 0 but ≤ 0 070 > 0 b ut ≤ 0 © ISO 2017 – All rights reserved ISO 002 8-1 : 01 7(E) Table Co de-numb er 80 090 10 110 120 140 160 19 220 (continued) Range of tens ile modulus of elas ticity MPa >7 500 but ≤8 500 >8 500 but ≤9 500 >9 500 but ≤10 500 >10 500 but ≤11 500 >11 500 but ≤13 500 >13 500 but ≤15 500 >15 500 but ≤17 500 >17 500 but ≤20 500 >20 500 but ≤23 500 >23 500 250 4.6 Data block Indication o f additional requirements in this optional data block is a way o f trans forming the designation o f a material into a specification for a particular application This may be done, for example, by re ference to a suitable national standard or to a standard-like, generally established specification Examples of designations Designation only A poly(ethylene terephthalate) thermoplastic material (PET), with special burning characteristics (F), stabilized against heat ageing (H), with a nucleating agent (M), having a viscosity number o f 85 ml/g (09) and a tensile modulus o f elasticity o f 10 300 MPa (100), and rein forced by a nominal glass fibre content o f 30 % (mass by mass) (GF30), would be designated: 1 DESIGNATION Identity block Descrip- ISO tion block Stand(optional) ard Data Block Polymer Type Thermo- 20028 plastics No No PET Yes Individual item block Data Data Data Data Block Block Block Block Performance and Application and Proper- Additional origin related inforProcessing ties informamation tion Filler Recyclate Processing Characteristics GF30 >Part marking< Yes X FHM No 09-100 No Designation: Thermoplastics ISO 20028-PET,GF30,XFHM,09-100,, or Thermoplastics ISO 20028-TP 2T,GF30,XFHM,09-100,, or ISO 20028-PET,GF30,XFHM,09-100,, or ISO 20028-TP 2T,GF30,XFHM,09-100,, or ISO 20028-PET,GF30,XFHM,09-100 or ISO 20028-TP 2T,GF30,XFHM,09-100 © ISO 2017 – All rights reserved No ISO 002 8-1:2 017(E) Part marking: >PET-GF30< or >TP 2T-GF30< 5.1.2 A poly(butylene terephthalate) thermoplastic material (PBT) for injection moulding (M), with special burning characteristics (F), natural (no colour added) (N), provided with a mould release agent (R), having a viscosity number o f 96 ml/g (09) and a tensile modulus o f elasticity o f 900 MPa (060), and rein forced with 12 % (mass by mass) o f glass fibres (GF12), would be designated: DESIGNATION Identity block Descrip- ISO tion block Stand(optional) ard Data Block Polymer Type Thermo- 20028 plastics No No PBT Yes Individual item block Data Data Data Data Block Block Block Block Performance and Application and Proper- Additional origin related inforProcessing ties informamation tion Filler Recyclate Processing Characteristics GF12 >Part marking< Yes M Designation: Thermoplastics ISO 20028-PBT,GF12,MFNR,09-060,, or ISO 20028-PBT,GF12,MFNR,09-060,, or ISO 20028-PBT,GF12,MFNR,09-060 Part marking: >PBT-GF12< FNR No 09-060 No No 5.1.3 A thermoplastic copolyester (TP) based on 50 % (mass by mass) bisphenol A (BA) and terephthalic acid (T) and 50 % (mass by mass) bisphenol A (BA) and isophthalic acid (I), for general use (G), transparent (T), natural (no colour added) (N) and having a viscosity number o f 115 ml/g (11) and a tensile modulus o f elasticity o f 900 MPa (020), would be designated: DESIGNATION Identity block Descrip- ISO tion block Stand(optional) ard Data Block Polymer Type Thermo- 20028 plastics No No TP BAT/ BAI(50/50) Yes Individual item block Data Data Data Data Block Block Block Block Performance and Application and Proper- Additional origin related Processing ties informainformation tion Filler Recyclate Processing Characteristics >Part marking< Yes G TN No Designation: Thermoplastics ISO 20028-TP BAT/BAI(50/50),,GTN,11-020,, or ISO 20028-TP BAT/BAI(50/50),,GTN,11-020,, or ISO 20028-TP BAT/BAI(50/50),,GTN,11-020 11-020 No No © ISO 2017 – All rights reserved ISO 002 8-1:2 017(E) Part marking: >TP BAT/BAI< 5.2 Designation trans formed into a specification A poly(ethylene terephthalate) thermoplastic material (PET) for injection moulding (M), coloured (C), having a viscosity number o f 75 ml/g (07) and a tensile modulus o f elasticity o f 13 800 MPa (140), rein forced with 45 % (mass by mass) o f glass fibres (GF45) and meeting the requirements o f the specification ASTM D5927 TPES0210G45A88560, would be specified: DESIGNATION Identity block Descrip- ISO tion block Stand(optional) ard Data Block Polymer Type Thermo- 20028 plastics No No PET Yes Individual item block Data Data Data Block Block Block Performance and Application and Properorigin related Processing ties information - Process- CharacterisFiller Recy clate ing tics GF45 M >Part marking< Yes C No Data Block Additional information 07-140 ASTM D5927 TPES0210G45A88560 No No Designation: Thermoplastics ISO 20028-PET,GF45,MC,07-140, ASTM D5927 TPES0210G45A88560 or ISO 20028-PET,GF45,MC,07-140, ASTM D5927 TPES0210G45A88560 Part marking: >PET-GF45< © ISO 2017 – All rights reserved ISO 002 8-1 : 01 7(E) Annex A (normative) Designation of thermoplastic polyesters Thermoplastic polyester materials contain ester groups, -CO-O-, at regular intervals in the linear polymer chain Straight-chain polyesters are built up from one starting material with two hydroxyl (-OH) groups, also called diols, plus one starting material with two carboxylic acid (-COOH) groups, also called dicarboxylic acids, or esters o f such acids, by a polycondensation process A hydroxycarboxylic acid or its lactone may also be used to build up polyesters I f a tricarboxylic acid and/or a triol is used, branched polymer chains will result The following six homopolyester thermoplastics are well known: PET PTT PBT PCT PEN PBN Poly(ethylene terephthalate) Poly(trimethylene terephthalate) Poly(butylene terephthalate) Poly(cyclohexylenedimethylene terephthalate) Poly(ethylene naphthalate) Poly(butylene naphthalate) For polyesters and copolyesters, a designation system similar to that for polyamides and copolyamides (see ISO 16396) has been developed to avoid creating new abbreviations for each member of this large family TP is the symbol for thermoplastic polyester, in accordance with ISO 1043-1 Aliphatic polyesters based on linear diols and linear dicarboxylic acids or esters o f such acids are designated by two or more code-numbers The first code-number (which may have one or two digits) corresponds to the number of C-atoms in the linear diol (see Table A.1) and the second code-number (which may also have one or two digits) corresponds to the number o f C-atoms in the linear dicarboxylic acid (see Table A.2) Nonlinear aliphatic, cycloaliphatic and aromatic compounds used as monomer units in the polyester chain are designated by code-letters (see Tables A.1, A.2 and A.3) Copolyesters are designated by an oblique stroke (/) between the code-numbers representing the components o f the copolyester (c f A.6, in ISO 1043-1:2011) Copolyesters with the same code-numbers or code-letters can have quite different properties, depending on the ratio of the starting materials designation (see Table 2) There fore, the ratio, in mass percent, may optionally be indicated in parentheses at the end o f the Copolyesters containing more than three monomers can also be represented by a simplified designation, TP DO1/DO2/DO3//DA1/DA2/DA3, where DO1 , DO2 and DO3 are three different diols and DA1 , DA2 and DA3 are three di fferent dicarboxylic acids Two oblique strokes (//) are used between the diols and dicarboxylic acids Due to the great variety o f polyesters and copolyesters, only a few examples are given below 10 © ISO 2017 – All rights reserved ISO 002 8-1 : 01 7(E) Us i ng th i s s ys tem, PE T, P T T, PB T, PC T and PE N ca n a l s o b e de s ignate d a s PET PTT PBT PCT PEN PBN fol lows: TP 2T TP 3T TP 4T TP CHT TP 2N TP 4N Table A.1 — Symbols for hydroxy units [first digit(s)] Symb ol 14 CH NG TM BA DG BF XX Monomer unit derived from E thylene gl ycol 1,3-Propanediol 1,4-Butanediol 1,6-Hexanediol 1,14-Tetradecanediol C yclo he xa ne d i me th a no l N e op entyl gl ycol ,1 ,1-Tri me thylolp rop a ne Bisphenol A D ie thylene gl yco l Bisphenol F C AS No 107-21-1 504-63-2 110-63-4 629-11-8 19812-64-7 105-08-8 126-30-7 77-99-6 80-05-7 111-46-6 2467-02-9 N o t s p e c i fie d Table A.2 — Symbols for carboxylic units [second digit(s)] Symb ol 10 12 36 T I M N P C YY © ISO 2017 – All rights reserved Monomer unit derived from Adipic acid Azelaic acid Sebacic acid Dodecanedioic acid H yd ro gen ate d d i mer ic fatty ac id Terephthalic acid Isophthalic acid Trimellitic acid , -N ap hth a lene d ic a rb ox yl ic ac id Phthalic acid ,4 - C yclohe xa ne d ic a rb ox yl ic ac id C AS No 124-04-9 123-99-9 111-20-6 693-23-2 68783-41-5 100-21-0 121-91-5 528-44-9 1141-38-4 88-99-3 1076-97-7 N o t s p e c i fie d 11 ISO 002 8-1 : 01 7(E) Table A — Symbols for hydroxycarboxylic units Symb ol CL HB HV ZZ 12 Monomer unit derived from Caprolactone p -H yd rox yb en z oic ac id -H yd rox y va ler ic ac id l ac to ne C AS No 502-44-3 99-96-7 108-29-2 N o t s p e c i fie d © ISO 2017 – All rights reserved ISO 002 8-1 : 01 7(E) Bibliography [1] ISO 20029-1, [2] ISO 20029-2, Plastics — Thermoplastic polyester/ester elastomers for moulding and extrusion materials — Part 2: Preparation of test specimens and determination of properties ISO 16396-1, Plastics — Polyamide (PA) moulding and extrusion materials — Part 1: Designation [3] Plastics — Thermoplastic polyester/ester elastomers for moulding and extrusion materials — Part 1: Designation system and basis for specification system, marking o f products and basis for specifications © ISO 2017 – All rights reserved 13 ISO 002 8-1:2 017(E) ICS 83.080.20 Price based on 13 pages © ISO 2017 – All rights reserved