L 云 IGI 閏I TH I烏 U xv
4.1. K院t lu壱n ÈÈÈÈÈÈÈÈÈÈÈÈÈÈÈÈÈÈÈÈÈÈÈÈÈÈÈ
- Ch院 t衣o thành công h衣t nano SiO2 b茨pi" rj逢挨pi" rjƒr" uqn-gel v噂i ti隠n ch医t Tetraethylorthosilicate (TEOS). Gi違p" 8欝 nhi宇u x衣 tia X cho th医y h衣t nano SiO2 t衣o thành 荏 tr衣pi"vjƒk"x»"8鵜nh hình. H衣t nano SiO2 có d衣ng hình c亥u v噂i m ej"vj逢噂c h衣t trung bình n茨m trong kho違ng 10-35" po" 8逢嬰c th吋 hi羽n qua 違nh TEM. K院t qu違 FE- SEM/EDS cho th医y h衣v"pcpq"e„"8瓜 tinh khi院t cao.
- Bi院n tính thành công h衣t nano SiO2 b茨pi"rj逢挨pi"rjƒr"jck"ikck"8q衣n v噂i h嬰p ch医t 3-Glycidoxylpropyltrimethoxysilane (GPTS) và Diethanol amine (DEA). K院t qu違 phân tích ph鰻 FTIR ch泳ng t臼8«"j·pj"vj pj"nk‒p"m院t gi英a GPTS và DEA v噂i b隠 m員t h衣t nano SiO2.
- Ch院 t衣o thành công v壱t li羽u PUF c泳ng n荏 t詠 do có tr丑pi"n逢嬰ng riêng th医p s穎 d映ng ch医t t衣o b丑t v壱t lý cyclopentane không phá h栄y t亥ng ôzôn (ODP = 0) và ti隠m p<pi" n o" p„pi" vtƒk" 8医t th医p (GWP =11) nh茨m thay th院 cho HCFC-141b. V壱t li羽u PUF c泳ng có tr丑pi"n逢嬰ng riêng n荏 t詠 do FRD = 27,77 kg/m3 v噂k"j o"n逢嬰ng ch医t t衣o b丑t hóa h丑e"p逢噂c là 2% và ch医t t衣o b丑t v壱t lý cyclopentane là 20%.
- Ch院 t衣o thành công v壱t li羽u PUF/SiO2 nanocomposite n荏 trong khuôn b茨ng rj逢挨pi" rjƒr" vt́pi" j嬰p in-situ v噂i 20% cyclopentane và j o" n逢嬰ng h衣t nano SiO2 ej逢c"dk院n tính và bi院n tính t瑛3'"8院n 3%. K院t qu違8q"8衣c ch泳pi"okpj"8逢嬰c kh違p<pi" c違i thi羽n các tính ch医v"e挨"n#"e栄a v壱t li羽u cách nhi羽v"RW"ikc"e逢運ng b茨ng nano SiO2 bi院n tính.
‚ H衣t nano SiO2 bi院n tính 8逢嬰e"8逢c"x q"RWH"e泳ng thành công và phân b嘘 khá 8欝pi"8隠u trên thành t院 bào kín th吋 hi羽n qua k院t qu違 FE-SEM/EDS.
‚ A瓜 b隠n nhi羽t c栄c"RWH"ikc"e逢運ng 3% nano SiO2 bi院n tính 8逢嬰c c違i thi羽n xác 8鵜nh qua k院t qu違 phân tích nhi羽t TGA.
‚ M磯u PUF c泳ng ikc" e逢運ng 3% h衣t nano SiO2 bi院n tính *A;+"có tr丑pi" n逢嬰ng riêng toàn ph亥n OD = 45,53 kg/m3, 8瓜 b隠p"pfip"32'"8q"vjgq"vk‒w"ejw育n ASTM
KｗT LUｅN VÀ KIｗN NGHぉ GVHD: PGS.TS. Nguyいn ThおRj⇔￢pi"Rhong
HVTH: Quang Th鵜 Ng丑c Anh 80
D 1621 n "377"mRc."8瓜鰻p"8鵜pj"m ej"vj逢噂e"8q"vjgq"vk‒w"ejw育n ASTM D 2126 là <0,1%, 8ƒr"泳ng các tiêu chu育n v隠 ch医v"n逢嬰ng c栄a v壱t li羽u cách nhi羽t PU.
Tóm l衣i vi羽e" 8逢c" j衣t nano SiO2 bi院n tính vào PUF c泳pi" 8«" p¤pi" ecq" 8逢嬰e"8瓜 b隠p"pfip."8瓜鰻p"8鵜pj"m ej"vj逢噂c, gi違o"8逢嬰e"m ej"vj逢噂c c栄a t院 bào x嘘p, c違i thi羽p"8逢嬰c 8瓜 b隠n nhi羽t và 8瓜 cách nhi羽t, h衣n ch院 kh違p<pi"mjw院ch tán c栄a cyclopentane nh茨m kh逸c ph映e"8逢嬰c các h衣n ch院 khi s穎 d映ng cyclopentane thay th院 cho HCFC-141b làm ch医t t衣o b丑t v壱v"n#"8吋 ch院 t衣o v壱t li羽u cách nhi羽t PUF c泳pi"8ƒr"泳ng tiêu chu育n ch医v"n逢嬰ng.
4.2. Ki院n ngh鵜
- Kh違o sát vai trò c栄a methylal 8吋 c違i thi羽p"8瓜 hòa tan c栄a ch医t t衣o b丑t v壱t lý cyclopentane trong h厩n h嬰p polyol.
- Kh違o sát 違pj"j逢荏ng c栄a h厩n h嬰p ch医t t衣o b丑t v壱t lý isopentane/cyclopentane 8院n tr丑pi"n逢嬰ng riêng và th運i gian ph違n 泳ng c栄a PUF c泳ng.
TÀI LIぅU THAM KHＵO GVHD: PGS.TS. Nguyいn ThおRj⇔￢pi"Rhong
HVTH: Quang Th鵜 Ng丑c Anh 81
TÀI LI烏U THAM KH謂O
1. Faith U. babaloha, Paul O. Erhievuyere-Dominic, ÐA comparative analysis of the effects of calcium carbonate and dolomite as fillers in polyether polyurethane foam productionÑ, Innovations in science and engineering 2, pp. 34-40, 2012.
2. Mir Mohammad ALAVI NIGJEH et al., ÐPolyurethane rigid foam/organically modified nano silica compositesÑ, Czech Republic, 2009.
3. Mir Mohammad Alavi Nikje, Zahra Mazaheri Tehrani, ÐPolyurethane rigid foams reinforced by doubly modified nanosilicaÑ, Journal of Cellular Plastic, vol. 46, pp. 159-172, 2010.
4. Sung-II Lee et al.." ÐPolyurethane/silica composites, prepared via in-situ polymerization in the presence of chemically modified silicasÑ, J. Ind. Eng. Chem, vol. 13, no. 5, pp. 786-793, 2007.
5. Hongyu Fan et al., ÐProperties of biobased rigid polyurethane foams reinforced with fillers: Microspheres and nanoclayÑ, International Journal of Polymer Science, vol. 2012, pp. 1-8, 2011.
6. Kaiwen Liang, Sheldon Q. Shi, ÐSoy-based polyurethane foam reinforced with cacbon nanotubesÑ, Key Engineering Materials, vol. 419, pp. 477-480, 2010.
7. Hua Zou et al., ÐPolymer/silica nanocomposites: Preparation, characterization, properties, and applicationsÑ, Chemical Reviews, vol. 108, no. 9, pp. 3893-3957, 2008.
8. Jian-Shu Kang et al., ÐEffect of Silane Modifified SiO2 Particles on Poly(MMA- HEMA) Soap-free Emulsion PolymerizationÑ, Iranian Polymer Journal, vol. 18, pp. 927-935, 2009.
9. Xiaoyan Gao et al., ÐSynthesis and characterization of polyurethane/SiO2 nanocompositesÑ, Applied Surface Science, vol. 257, pp. 4719-4724, 2011.
TÀI LIぅU THAM KHＵO GVHD: PGS.TS. Nguyいn ThおRj⇔￢pi"Rhong
HVTH: Quang Th鵜 Ng丑c Anh 82
10. Nittaya Thuadaij, Apinon Nuntiya, ÐPreparation of Nanosilica Powder from Rice Husk Ash by Precipitation MethodÑ, Chiang Mai J. Sci., vol. 35, pp. 206-211, 2008.
11. ÐThermal insulation materials made of rigid polyurethane foam (PUR/PIR)Ñ, Federation of European rigid polyurethane foam associations, 2006.
12. Manfred Kapps, Siegfried Buschkamp, ÐThe production of rigid polyurethane foamÑ, Insulation technical Information, pp. 1-46, 2004.
13. Kypros Efstathiou, Synthesis and characterization of a polyurethane prepolymer for the development of a novel acrylate-based polymer foam.
14. Kun Hyung Choe et al., ÐProperties of Rigid Polyurethane Foams with Blowing Agents and CatalystsÑ, Polymer Journal, vol. 36, no. 5, pp. 368-373, 2004.
15. Igor V. Khudyakov et al., ÐPolyurethane nanocompositesÑ, Designed Monomers and Polymers, vol. 12, pp. 279-290, 2009.
16. John McMenamin et al., Development of Novel Blowing Agents for Polyurethane Foams, Utech Europe 2009 Maastricht, Netherlands, 2009.
17. ÐCyclopentane: a blowing agent for polyurethane foams for insulation in domestic refrigerator-freezersÑ, OzonAction Programme.
18. Gloria L. Manney, «Unprecedented Arctic ozone loss in 2011Ñ, Nature, vol. 478, pp. 469Î475, 2011.
19. Richard Babyak, ÐAlternative blowing agentsÑ, Appliance Design, pp. 34-38, 2009.
20. Modesti et al., ÐInfluence of nanofillers on thermal insulating properties of polyurethane nanocomposites foamsÑ, pp. 1-8, 2007.
21. Mark L. Robin, Gary Loh, ÐDevelopment of a Novel Foam Expansion Agent for Polyurethane FoamsÑ, DuPont Fluoroproducts, pp. 5-18, 2008.
TÀI LIぅU THAM KHＵO GVHD: PGS.TS. Nguyいn ThおRj⇔￢pi"Rhong
HVTH: Quang Th鵜 Ng丑c Anh 83
22. K. Friedrich, W.H. Ruan, ÐStructure-property relationships of in-situ crosslinking modified nano-silica filled polypropylene compositesÑ, Proceeding of the 8th Polymers for Advanced technologies International Symposium, 2005.
23. Mark Sonnenschein et al., ÐThe relationship between polyurethane foam microstructure and foam agingÑ, Polymer 49, pp. 934-942, 2008.
24. K. Amutha et al., ÐSynthesis and Characterization of Nanosilica from Rice Husk AshÑ, International Journal of Nanotechnology and Applications, vol. 4, pp. 61-66, 2010.
25. Igor V. Khudyakov et al., ÐPolyurethane nanocompositesÑ, Designed Monomers and Polymers, vol. 12, pp. 279-290, 2009.
26. Jerzy Chrusciel, Ludomir Slusarski, ÐSynthesis of nanosilica by the sol-gel method and its activity toward polymersÑ, Materials Science, vol. 21, no. 4, pp. 461-469, 2003.
27. Tzong-Ming Wu, Mu-Shun Chu, ÐPreparation and characterization of thermoplastic Vulcanizate/silica nanocompositesÑ, Wiley InterScience, pp. 2058- 2063, 2005.
28. Seon Hoon Ahn et al., ÐSurface-modified silica nanoparticle-reinforced Poly(ethylene 2,6-naphthalate)Ñ, Wiley InterScience, pp. 812-818, 2004.
29. Xiaoming Yang et al., ÐSynthesis of novel sunflower-like silica/polypyrrole nanocomposites via seft-assembly polymerizationÑ, Polymer, vol. 47, pp. 441-447, 2006.
30. Barry Arkles, ÐHydrophobicity, Hydrophilicity and SilanesÑ, Paint & Coatings Industry magazine, 2006.
31. Gelest, Inc., ÐSilane coupling agentsÑ. 2006.
32. Zhong Tang et al., ÐThermal degradation behavior of rigid polyurethane foams prepared with different fire retardant concentrations and blowing agentsÑ, Polymer, vol. 43, pp. 6471-6479, 2002.
TÀI LIぅU THAM KHＵO GVHD: PGS.TS. Nguyいn ThおRj⇔￢pi"Rhong
HVTH: Quang Th鵜 Ng丑c Anh 84
33. Irena Vitkauskiene et al., ÐThermal propeties of polyurethane-polyisocyanurate foams based on poly(ethylene terephthalate) wasteÑ, Materials Science, vol. 17, no.
3, pp. 249-253, 2011.
34. Nguy宇n Th鵜 Rj逢挨pi" Rjqpi et al., ÐU穎" f映pi" eƒe" ej医v" v衣q" d丑v" vj¤p" vjk羽p" o»k" vt逢運pi"vtqpi"v鰻pi"j嬰r"z嘘r"e泳pi"rqn{wtgvjcpg"v益"vt丑pi"vj医rÑ, VＴr"ej "J„c"jがe."v壱r" 51."u嘘"2C, trang 951-954, 2013.
35. Nguy宇n Th鵜 Rj逢挨pi"Rjqpi et al., ÐBi院n tính nanosilica và s穎 d映ng làm ch医t gia e逢運ng trong ch院 t衣o v壱t li羽u x嘘p c泳ng polyurethan t益 tr丑ng th医p (LDPU@m- SiO2)Ñ, TＴp chí hóa hがc, t壱p 51, s嘘 4AB, trang 448-452, 2013.
36. Nguyen Thi Phuong Phong et al., ÐFabrication of rigid polyurethane foam/nanoclay nanocompositesÑ, Proceeding of the 13th Conference on Science and Technology, 2013. 37.http://tusach.thuvienkhoahoc.com/wiki/Nguy%C3%AAn_nh%C3%A2n_n%C3 %A0o_d%E1%BA%ABn_%C4%91%E1%BA%BFn_th%E1%BB%A7ng_t%E1% BA%A7ng_Ozon%3F 38. http://sggp.org.vn/moitruongdothi/2012/9/300312/ 39. http://hvacr.vn/home/hvacr/moi-truong-nang-luong/833-tac-nhan-lanh-va-su- anh-huong-den-moi-truong.html 40. http://tailieu.vn/tag/tai-lieu/T%E1%BA%A7ng%20Ozon.html
PHっ LっC GVHD: PGS.TS. Nguyいn ThおRj⇔￢pi"Rhong
HVTH: Quang Th鵜 Ng丑c Anh 85
PH影 L影C
- K院t qu違 phân tích FE-SEM/EDS. - K院t qu違 phân tích nhi羽t TGA.
- K院t qu違8q"8瓜 b隠p"pfip"x "8瓜鰻p"8鵜pj"m ej"vj逢噂c. - 4"d k"dƒq"8<pi"vt‒p"V衣p chí Hóa h丑c.
86
PH井N LÝ L卯CH TRÍCH NGANG
H丑 và tên: Quang Th鵜 Ng丑c Anh
Pi {"vjƒpi"p<o"ukpj<"3712:13;:: P挨k"ukpj<"Mjƒpj"J”c A鵜a liên l衣c: 410L CC Bàu Cát 2, Qu壱n Tân Bình, TP. HCM
Ak羽n tho衣i: 01228775726 Email: ngocanh1508nt@gmail.com
SWè"VTîPJ"AÉQ"V萎O:
T瑛 2006 Î 2011: h丑e"A衣i h丑c ngành Công ngh羽 v壱t li羽u t衣k"vt逢運pi"AJ"Dƒej"Khoa TP.
HCM
T瑛 2011 8院n nay: h丑c Cao h丑c ngành Công ngh羽 v壱t li羽u t衣k"vt逢運pi"AJ"Dƒej"Mjqc" TP. HCM
QUÁ TRÌNH CÔNG TÁC:
T瑛 4/2011 8院n nay: làm nghiên c泳u viên t衣i vt逢運ng AJ" Mjqc" J丑c T詠 Nhiên TP. HCM.
A<pi"4"d k"dƒq"vt‒p"V衣p chí Hóa h丑c:
- Uぬ" fつpi" eƒe" ejＸv" vＴq" dがv" vj¤p" vjkうp" o»k" vt⇔ぜpi" vtqpi" vごpi" jぢr" zぐr" eとpi" rqn{wtgvjcpg"vぴ"vtがpi"vjＸr."V衣r"ej "J„c"j丑e."u嘘"73"*2C), 951-954, (2013).
- Biｘn tính nanosilica và sぬ dつng làm chＸv"ikc"e⇔ぜng trong chｘ tＴo vｆt liうu xぐp cとng polyurethan tぴ trがng thＸp (LDPU@m-SiO2), T衣p chí hóa h丑c, 51 (4AB), 448-452, (2013).