Siv Polyethylene Diol (taum pauv), 1,5-naphthane huab hwm coj sib piv (1/9 txog 9/1) ntawm cov khoom siv tau yog cov txheej txheem kawm, thiab cov txiaj ntsig tau qhia tau tias:
Cov khoom siv neeg kho tshuab: thaum ndi / mdi =1 Cov khoom siv hluav taws xob zoo siab 5,5MPA) Thermal ruaj khov yog qhov yooj yim txhim kho (qhov ntsuas kub me me)
1.1 Cov ntaub ntawv raw thiab cov khoom mos mos: taum (mn {}) Didio Extender: BDIdi / MDI piv: 1 / 7,7 / 3,7 / 1
1.2 Cov txheej txheem npaj pea lub cev tuag (100 degree) → sib xyaw nrog NDI / MDI los ua ib qho kev ua tiav (60 degree) → matural (100 degree, 16h)
1.3 Cov Khoom Cwj Pwm Cov Khoom Siv: Hardness (GB / T 531), Lub Zog (DSC, Kev Siv Hluav Taws Xob Cov Txheej Txheem Kev Ntsuam Xyuas: FT-IR Spectrum (4000 ~ 400c⁻1)
2.1 Lub Hump Txoj Cai ntawm Cov Khoom Siv Neeg Kho Tshuab
Cawv ntawm NDI / MDI CALV sib piv rau ntawm cov khoom siv cov khoom siv ntawm Pue
| NDI / MDI | Hardness Shorea | Tensile lub zog (mpa) | Kua Muag Lub Zog (Kn / M) | Lub zog tensile hauv qhov kub siab (mpa) |
| 1/9 | 87 | 37.9 | 98.7 | 11.9 |
| 3/7 | 88 | 47.1 | 103.5 | 12.3 |
| 5/5 | 94 | 55.2 | 127.2 | 12.5 |
| 7/3 | 95 | 35.3 | 116.4 | 12.0 |
| 9/1 | 96 | 18.3 | 83.2 | 9.0 |
Mechanism:
TG raug txo los ntawm 8.3 degree: NDI txhawb nqa lub crystallization ntawm cov ntu nyuaj thiab txo cov kev txwv ntawm cov si mos (taum pauv.
Txhim kho thermal stability: lub suab ntxiag naphthalalal naphthalalal nthe molecular stacking ntom thiab txhim kho lub decomposition zog barrier