Method for grafting propylene polymer with polar monomer
A technology of propylene polymer and polar monomer, applied in the field of propylene polymer grafting polar monomer, can solve the problems of many kinds of raw materials, limited polymer performance, complicated process, etc., so as to reduce costs and improve grafting. efficiency, the effect of simplifying the process
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[0052] Example 1
[0053] A propylene / ethylene random copolymer is used as the polypropylene matrix, wherein the ethylene content is 2.2 wt%, the melt mass flow rate is 3.6 g / 10 min, and 300 g particles with a particle size between 1 mm and 2 mm are taken after sieving.
[0054] Put it into a 2L glass kettle with a condensing device with mechanical stirring, airtightly vacuumize and remove oxygen. An acetone solution containing 0.384 g of benzoyl peroxide was added, and after stirring and mixing for 15 minutes, the acetone was removed by vacuum. Then add 15g GMA and 100ml deionized deionized water, airtightly stir for 30min, so that GMA can fully infiltrate the base material. Then add 100ml deionized water, heat to 90°C, and react for 4 hours. After the reaction, the product was filtered, cooled, washed with deionized water 3 times, and fluidized and dried.
[0055] Take 2g sample, dissolve it with 100ml xylene at 140℃ for 1 hour, then pour it into 250ml acetone while it is hot, a...
Example Embodiment
[0056] Example 2
[0057] The polypropylene matrix was changed to a propylene / ethylene random copolymer with an ethylene content of 2.5 wt%. Other conditions were the same as in Example 1. The experimental results of A1730 / A2722 before and after purification are listed in Table 1.
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[0058] Example 3
[0059] The polypropylene matrix was changed to a propylene / ethylene random copolymer with an ethylene content of 2.8 wt%. The other conditions were the same as in Example 1. The experimental results of A1730 / A2722 before and after purification are listed in Table 1.
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