《聚合物的粘弹性PPT演示课件》由会员分享,可在线阅读,更多相关《聚合物的粘弹性PPT演示课件(89页珍藏版)》请在金锄头文库上搜索。
1、 2 TheViscoelasticityofPolymers 3 1 E1 D1 E1 D1 2 4 3 4 5 6 仯 5 6 T t 7 4 WLF 8 1 仯 Creep 9 10 2 11 1 仯 12 2 t 0 t t1 0 t E2 13 14 3 t 0 t t1 3 15 4估 16 17 仯 仯 Creeprecovery Creep 18 3 1 Tg 1 2 1 2 3 19 1 2 PETg 68 PTFETg 40 PSTg 80 100 1 1 2 20 4 1 2 3 21 Tg T Tg Tg 22 4 t 1000 2000 3000
2、ABS ABS 0 5 1 0 1 5 2 0 6 23 5 a b 24 1 2 PVC 1 PVCTg 80 PVC 7 25 StressRelaxation 1 26 T Tg Tg 8 27 9 28 Dynamicviscoelasticity 仯 29 0 100 1000 20 40 50 20 30 10 31 polymer 32 1 仯 仯 仯 仯 33 a b T Tg c 仯 仯 34 2 仯 仯仯 仯 35 36 Tan 37 38 39 40 41 tan 42 43 13 44 CN
3、a a b c tan BR NR SBR NBR IIR tg 45 b T Tg 仯 T Tg 仯 T Tg T Tf Tg T 14 46 c tan 1 仯 2 仯 3 仯 15 47 Tg Tm 48 仯 T t 49 T t T t 仯 仯 仯 50 1 Maxwell2 Kelvin 51 52 1 Maxwell 1 2 53 54 55 Maxwell F 0 0 56 57 16Maxwell Maxwell 58 59 2 Kelvin 60 0 61 F 17Kelvin o t 62 0 0 63 64 MaxwellKelvi
4、n MaxwellKelvin 18 65 66 0 0 1 2 67 68 69 70 71 3 I 72 Boltzmann polymer Boltzmann 73 1 1 0 0t 0 74 t Boltzmann 75 19 76 1 2 3 n 1 2 3 n Boltzmann 仯 77 0 a t 78 Boltzmann 1 2 3 n 1 2 3 n 仯 79 1 弰 80 T 81 82 WLF T0 C1 C2 T0 Tg C1 17 44 C2 51 6 Tg T T 100 83 T Tg 50 WLF lg T T lg T 84 WLF 85 WLF EPDM50 10 1 10 8s 86 87 1 0 E t t 8s 1 3 88 2 治 8 仹 89 3 𤵯 𤵯 a b c 仯 仯