Compatilizer and preparation method and application thereof

Abstract

The invention relates to a compatilizer and a preparation method and application thereof. The compatilizer is prepared from the following components in parts by weight: 50-90 parts of styrene resin, 10-40 parts of vinyl elastomer, 0.1-3 parts of an initiator, 0.1-3 parts of an antioxidant, 0.1-3 parts of a lubricant and 0.5-5 parts of a functional monomer. According to the compatilizer and the preparation method and application, the initiator is fed by using a side feeding method, and the free radical deactivation post-treatment is carried out at the rear stage of the reaction to stop the residual free radicals, and the product stability is improved. Compared with the prior art, a reactive compatilizer with active functional groups and a core-shell structure is prepared, the compatibilityof the styrene resin with the polyamide resin is effectively improved through the reaction of the functional groups, the core-shell structure can effectively improve the processability and toughness of an alloy, a reaction extrusion process is adopted, the processing is convenient, the input cost is low, and the environment is not polluted.

Description

technical field [0001] The invention belongs to the technical field of macromolecules, and in particular relates to a compatibilizer and a preparation method thereof, in particular to a special compatibilizer for alloy modification of styrenic resins and polyamide resins and a preparation method thereof. Background technique [0002] Polyamide (PA) has developed into one of the most important varieties of engineering plastics due to its excellent mechanical strength, wear resistance, self-lubricating properties and corrosion resistance. However, it has disadvantages such as high water absorption, poor dimensional stability, low temperature and poor dry impact, which greatly limit its application in some fields. Styrene resins, such as acrylonitrile-butadiene-styrene copolymer (ABS) resin, are currently the most produced and widely used polymers, and have excellent mechanical properties of toughness, hardness, and rigid phase balance. At the same time, it is a thermoplastic ...

AI Technical Summary

Problems solved by technology

[0004] Compatibilizers currently reported for PA / ABS alloys mainly include maleic anhydride grafted acrylonitrile-butadiene-styrene copolymer (ABS-g-MAH), styrene-acrylonitrile-maleic anhydride copolymer (SAM ), as well as styrene-acrylonitrile-glycidyl methacrylate copolymer (SAG) and SAN-co-X, etc., can improve some properties of the alloy to a certain extent, but there are problems such as insufficient improvement of toughness and rigidity and The modulus is generally lowered too much for insufficient

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