Polyme Analysis 2010 Part 2 docx

... attacks Mechanical Testing of Polymers For the composite samples Longitudinal test Transverse test

Ngày tải lên: 12/08/2014, 02:20

...  phi ca s c cng dng Office 20 10 hoc nhn t h F1 Word 20 10 6 8.  Word 20 10 1  ... protectio  ...

Ngày tải lên: 15/12/2013, 05:15

... 22 22 1 22 2 12 (4) 0, vhw Qv y y β ωβ αα ∂∂ + −− = ∂ ∂ (1) 422 2 2 2 2 2 422 22 2 12 () 0, wh w h v Qw y yyR βα β ω γγ γ ∂∂ ∂ − +− − = ∂ ∂∂ (2) where 22 22 3 12 2 , (1 / /4 ) , /6, , 2 ... 109.688 109.340 109.063 108 .20 6 108.633 108. 125 107.1 32 107.670 105.938 106 .27 8 106 .29 3 3 21 5.000 21 4.795 21 5.000 21 4.087 21 4 .23 0 21 4.688 21 3. 825 2...

Ngày tải lên: 20/06/2014, 00:20

... chn chn. Hp tho ch binh truy cp nhanh Ribbon là gì? Ribbon: Excel 20 10 i giao di vic s d truyn thm

Ngày tải lên: 02/07/2014, 20:21

... composition of polymers etc. and complex morphological systems ⇒ analysis of polymer ≠ the small organic materials ⇒ Focus on viscoelasticproperties, dynamic mechanical testing. Polymer analysis üThe ... advantageous, particularly in the case of tests running for a long time (creep tests) Tests for Producing Design Data TRƯỜNG ĐẠI HỌC BÁCH KHOA ĐÀNẴNG KHOA HOÁ PHÂN TÍCH POLYME (POL...

Ngày tải lên: 12/08/2014, 01:22

... ε Stress, σ σ y ε y ε F σ F 2% 0 • E = δ/l Stress –Strain Behavior Stress-strain curves Deformation of Semicrystallineand crosslinkedPolymers Deformation of Amorphous Polymers TENSILE RESPONSE: ... crosslinkedPolymers Deformation of Amorphous Polymers TENSILE RESPONSE: ELASTOMER CASE üModuliof elasticity for polymers are ~ 10MPa-4GPa (compare to metals ~ 50 - 400 GPa) üTensile strengths ar...

Ngày tải lên: 12/08/2014, 02:20

... Size: üA variety of specimen shapes can be used üThe most commonly used specimen size: + 3.2mm x 12. 7mm x 125 mm for ASTM D790 +10mm x 4mm x 80mm for ISO 178 Test Procedure: Flexural test ... üFlexural strength üFlexural modulus Flexural test b b L F δ 3 3 4 hb Lm E b = 2 2 3 hb LF b =σ m : initial slope of the load vs. deflection curve Izod Impact Testing (Notched ... test result is...

Ngày tải lên: 12/08/2014, 02:20

... produced. Compression test üBlocks or cylinders üFor ASTM D695: +The typical blocks: 12. 7 x 12. 7 x 25 .4mm +The cylinders: 12. 7mm diameter and 25 .4mm long üFor ISO 604: the preferred specimens: +50 x 10 x 4mm for ... lower density or specific gravity means more material per pound or varied part weight. Density and Specific Gravity ASTM D7 92, ISO 1183 Scope: üThe specimen is placed...

Ngày tải lên: 12/08/2014, 02:20

... amorphous polymer or an amorphous part of a crystalline polymer goes from a hard, brittle state to a soft, rubbery state. Tm = melting point = The temperature (°C) at which a crystalline polymer ... determine the temperature of the transitions Test procedures: Differential thermal analysis (DTA) Thermal Analysis üThermal analysis (TA) is frequently used to describe analytical experi...

Ngày tải lên: 12/08/2014, 02:20

... moving through the specified temperature range. Test Procedure: 100 20 0 300 400 500 600 -20 0 20 40 60 80 100 120 0 5 10 15 20 25 Deviation Weight (%) As received_J3 NaOH_J3 NaOH/(APS+XB)_J3 ... ViscoelasticMaterial SUPER BALL TENNIS BALL X STORAGE LOSS Is DMA Thermal Analysis or Rheology Ø Definitions Ø Thermal Analysis is the measurement of some characteristic of a...

Ngày tải lên: 12/08/2014, 02:20