Polyvinyl chloride heat stabilizer and preparation method thereof
A heat stabilizer and polyvinyl chloride technology are applied in the field of polyvinyl chloride heat stabilizer and its preparation, which can solve problems such as environmental pollution, and achieve the effects of simple preparation process and reliable application productivity.
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Embodiment 1
[0027] 1000 parts of PVC (K=64), 50 parts of epoxidized soybean oil, 4 parts of 1,3-dimethyl-6-aminopyrimidine, 3 parts of calcium stearate, 5 parts of zinc stearate , 6 parts of sodium perchlorate, and 2 parts of tris(2,4-di-tert-butylphenyl) phosphite, and the dry mixture was rolled on an open mill at 180°C for 5 minutes. The rolled sheet was processed into a sheet at 180°C for 1 min, and the yellowness index measured according to ASTM D 1925-70 was 18.88.
[0028] Each serving is 1 gram in this embodiment.
Embodiment 2
[0030] 1000 parts of PVC (K=64), 20 parts of epoxidized soybean oil, 2 parts of 1,3-dimethyl-6-aminopyrimidine, 4 parts of calcium stearate, 4 parts of zinc stearate , 6 parts of sodium perchlorate, and 2 parts of tris(2,4-di-tert-butylphenyl) phosphite, and the dry mixture was rolled on an open mill at 180°C for 5 minutes. The rolled sheet was processed into a sheet at 180°C for 1 min, and the yellowness index measured according to ASTM D 1925-70 was 22.53.
[0031] Each serving is 1 gram in this embodiment.
Embodiment 3
[0033] 1000 parts of PVC (K=64), 20 parts of epoxidized soybean oil, 4 parts of 1,3-dimethyl-6-aminopyrimidine, 5 parts of calcium stearate, 3 parts of zinc stearate , 6 parts of sodium perchlorate, and 2 parts of tris(2,4-di-tert-butylphenyl) phosphite, and the dry mixture was rolled on an open mill at 180°C for 5 minutes. The rolled sheet was processed into a sheet at 180°C for 1 min, and the yellowness index measured according to ASTM D 1925-70 was 17.21.
[0034] Each serving is 1 gram in this embodiment.
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