| abstract |
The invention relates to a radiation-resistance high-elastic resilience polyvinyl chloride composition and a preparation method thereof, which relates to the technical field of plastic processing. The polyvinyl chloride composition comprises the following mixed component: polyvinyl chloride resin, plasticizer and nitrile-butadiene rubber powder. The plasticizer is mixture of dioctyl phthalate and tri-isopropylated phenyl phosphate ester at a weigh ratio of (70:30)-(30:70). The amount of the plasticizer is 80-130 weight parts provided that amount of polyvinyl chloride resin is 100 weight parts. The mass percentage of acrylonitrile in the nitrile-butadiene rubber powder is 31-35%, and the average particle size of the nitrile-butadiene rubber powder is 0.2-1 mm. The amount of the nitrile-butadiene rubber powder is 10-50 weight parts provided that amount of polyvinyl chloride resin is 100 weight parts. The preparation method comprises mixing the components containing polyvinyl chloride resin, plasticizer and nitrile-butadiene rubber powder, and melting. |