Basic Composition
PVC cob: 40% ~ 70%
Plasticizer: 10% ~ 50% (siv los kho qhov yooj yim)
Stabilizer: 1% ~ 10% (txhim kho cua sov thiab lub teeb ua haujlwm)
Filler: 1% ~ 30% (txhim kho cov khoom siv kho tshuab lossis txo nqi)
Xim: 1% ~ 10% (muaj xim)
Physical thiab Chemical Properties
Cov tsos mob: me ntsis daj, translucent, glossy
Thickness Range: Feem ntau 0.08 ~ 0.2 hli; tuab dua 0.25 hli yog hu ua PVC ntawv
Transparency: Zoo dua polyethylene thiab polypropylene, tab sis phem dua polystyrene
Tshuaj tiv thaiv
Resistant rau dej, roj, thiab ntau yam acids thiab alkalis (xws li caustic soda hauv qab 20%, sulfuric acid 90%)
Insoluble hauv dej, cawv, thiab roj av, tab sis soluble hauv ketones, esters, chlorinated hydrocarbons, thiab lwm yam organic solvents
Mechanical Properties
Rigid PVC muaj qhov hardness siab dua li qis- ntom polyethylene, tab sis qis dua polypropylene
PVC yooj yooj yim yog pliable thiab tacky rau qhov kov, tab sis ntev - siv sij hawm yuav ua rau brittleness vim plasticizer tsiv teb tsaws
Thermal Stability: softening kub nyob ib ncig ntawm 85 degree, pib decomposing ntawm 170 degree; Cov stabilizers yog xav tau los tiv thaiv thermal degradation