Cov khoom kuaj | Tuam txhab | Test txuj | PAB-20 |
tsos | —— | —— | Dawb hmoov |
Qhov ntom ntom | g/cm3 | GB/T 1636-2008 | 0.45 ± 0.10 |
Sieve residue (30 mesh) | % | GB/T 2916 | ≤ 2.0 |
Volatile | % | ASTM D 5668 Cov khoom lag luam | ≤1.3 |
Intrinsic viscosity | —— | GB/T 1632-2008 | 3.00 ± 0.20 |
ACR thiab PVC muaj cov polarity zoo sib xws, muaj kev sib raug zoo thiab kev sib raug zoo, thiab nws cov yam ntxwv ua haujlwm yog:
1. Thaum ua haujlwm kub, nws tuaj yeem txhawb kev sib koom ua ke ntawm cov ntaub ntawv PVC, txhim kho thermal stability, zoo tiv thaiv cov khoom hauv zos coking, txo cov txheej txheem molding kub, txo lub sij hawm plasticization, thiab txhim kho kev tsim khoom.
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2. Txhim kho qhov fluidity ntawm cov ntaub ntawv PVC, txhawb kev ua haujlwm du, ua kom cov khoom tsim tawm, thiab txo cov neeg siv khoom ntawm kev ua cov tshuab.
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3.Significantly txo cov deposition ntawm ntau yam additives nyob rau saum npoo ntawm lub tshuab, thiab ho txhim kho cov tsos ntawm tiav lawm cov khoom los yog semi-tiav khoom xws li smoothness.
Cov khoom no tsuas yog siv rau PVC pob tshab khoom xws li PVC zaj duab xis thiab PVC ntawv. Nws tseem tuaj yeem siv rau hauv PVC foaming tus neeg sawv cev khoom.
25Kg / hnab. Cov khoom yuav tsum tau khaws cia kom huv si thaum thauj khoom, thauj khoom thiab thauj khoom kom tsis txhob raug tshav ntuj, nag, kub thiab av noo, thiab kom tsis txhob muaj kev puas tsuaj rau pob. Nws yuav tsum tau muab cia rau hauv qhov chaw txias, qhuav qhuav yam tsis muaj hnub ci ncaj qha thiab ntawm qhov kub qis dua 40oC rau ob xyoos. Tom qab ob xyoos, nws tseem tuaj yeem siv tau tom qab dhau qhov kev tshuaj xyuas kev ua haujlwm.