Compatilizer and preparation method and application thereof

A technology of compatibilizer and styrene resin, which is applied in the field of polymers, can solve the problems of insufficient toughness improvement, too much reduction in rigidity and modulus, etc., and achieve the effects of low residue, improved grafting efficiency, and reduced loss

Active Publication Date: 2019-10-25
FINE BLEND COMPATILIZER JIANGSU CO LTD
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  • Abstract
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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

Method used

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  • Compatilizer and preparation method and application thereof
  • Compatilizer and preparation method and application thereof
  • Compatilizer and preparation method and application thereof

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Embodiment 1～5 and comparative example 1～6

[0032] Said embodiment weighs raw materials according to the following components in percentage by weight (concrete component distribution ratio is shown in Table 1):

[0033]

[0034] The specific raw materials used for each component can be: ABS and SAN are selected for styrene resin; POE (ethylene octene copolymer) and EPDM (ethylene-propylene-norbornene copolymer) are selected for vinyl elastomer; Nano-structure slow-release peroxide trigger system and conventional trigger system compound; antioxidant 168; lubricant TAF; functional monomer GAM, MAH.

[0035] Put the above raw materials into the high mixer according to the proportion and mix them for 3-5 minutes, discharge the materials, and feed them into the twin-screw extruder, 0.5-5% of functional monomers and 0.1-5% of conventional initiators are respectively used for side feeding Feed by way of feeding, and then carry out free radical deactivation treatment by ultrasonic in the post-reaction stage, and then extrude...

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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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F267/08C08F279/04C08F255/02C08F255/06C08F222/06C08F220/32C08F4/36C08F4/12C08L77/00C08L55/02C08L51/00
CPCC08F267/08C08F279/04C08F255/02C08F255/06C08F4/36C08F4/12C08L77/00C08L2205/08C08L2207/53C08L55/02C08L51/00C08F222/06
Inventor 段浩朱从山汤俊杰李心良史鹏伟
Owner FINE BLEND COMPATILIZER JIANGSU CO LTD
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