Preparation method of high melt strength polypropylene by solid phase reaction
A technology with high melt strength and solid state reaction, applied in the field of plastic materials, can solve problems such as excessive free radical concentration, degradation, and self-polymerization of grafted monomers, and achieve obvious melt strength, simple equipment requirements, and production The effect of process environmental protection
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[0025] Example 1
[0026] Raw material components (in parts by weight): 100 parts of homopolymer polypropylene powder, Ningbo Yongxing Chemical Co., Ltd., grade 045; grafting monomer: 1 part of trimethylolpropane triacrylate (TMPTA); resistance Oxygen agent 1010 is 0.4 parts.
[0027] Set the heating temperature of the high-speed mixer to 125°C.
[0028] After the temperature reaches the setting, start the high-speed mixer, set the rotation speed to 700 rpm, add polypropylene, antioxidant, and graft monomer to the high-speed mixer in turn, and carry out the solid phase grafting reaction while stirring, the reaction time is 15 Minutes, then, add 0.2 parts by weight of antioxidant 1010, continue to mix for 3 minutes, and then discharge the material to obtain the product of the present invention.
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[0029] Example 2
[0030] Raw material components (in parts by weight): 100 parts of homopolymer polypropylene powder, Ningbo Yongxing Chemical Co., Ltd., grade 045; grafting monomer: 3 parts of trimethylolpropane triacrylate (TMPTA), resistant Oxygen agent 1010 is 0.4 parts.
[0031] The operation steps and implementation methods are the same as in Example 1.
Example Embodiment
[0032] Example 3
[0033] Raw material components (in parts by weight): 100 parts of homopolymer polypropylene powder, Ningbo Yongxing Chemical Co., Ltd., grade 045; grafting monomer is 2.5 parts of 1,6-hexanediol diacrylate (HDDA), Antioxidant 1010 is 0.4 parts.
[0034] The operation steps and implementation methods are the same as in Example 1.
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