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Hyperbranched polyester and synthetic method thereof, and thermoplastic resin composition and preparation method thereof

A technology of hyperbranched polyester and thermoplastic resin, which is applied in the field of polymers, can solve the problems of hyperbranched polyester end-capping modification, etc., and achieve the effect of promoting dispersion performance and improving the decline of toughness

Inactive Publication Date: 2019-09-20
WUHAN JINFA TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no end-cap modification to hyperbranched polyester to improve the toughness of thermoplastic resins, especially the toughness of nano-inorganic filler-filled thermoplastic resin compositions

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] The present invention will be further described below through specific embodiments. The following examples are preferred implementation forms of the present invention, but the implementation manners of the present invention are not limited by the following examples.

[0041] The raw material that the present invention adopts is as follows, but not limited to following raw material:

[0042] Polypropylene: Sinopec, EP548R, copolymerized polypropylene;

[0043] Polyethylene: high density polyethylene, DMDA8008;

[0044] Polyamide: PA66, EP-158;

[0045] Hyperbranched polyester A with a vinyl group in the end-capping group: self-made, synthesis of AB by esterification and polycondensation reaction between trimellitic anhydride and ethylene glycol 2 type monomer, and then use trimellitic anhydride as the core to synthesize AB by esterification and polycondensation reaction between trimellitic anhydride and ethylene glycol 2 Monomer reaction obtains uncapped hyperbranched...

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Abstract

The invention discloses a hyperbranched polyester and a thermoplastic resin composition. The thermoplastic resin composition comprises, by weight, 60-85 parts of thermoplastic resin and 1-12 parts of the hyperbranched polyester, wherein capping groups containing vinyl groups account for 3% to 100% of the total number of the end groups of the hyperbranched polyester. The hyperbranched polyester containing vinyl end groups can enhance the toughness of thermoplastic resin. Moreover, if a nano-inorganic filler is added, the hyperbranched polyester can improve the dispersibility of the nano-inorganic filler in the thermoplastic resin composition and insulate the direct contact of a large amount of the nano-inorganic filler with the thermoplastic resin, thereby overcoming the problem of decrease in toughness caused by the addition of the nano-inorganic filler.

Description

technical field [0001] The invention relates to the technical field of polymers, in particular to a hyperbranched polyester and a synthesis method thereof, a thermoplastic resin composition and a preparation method thereof. Background technique [0002] Automobile lightweight is an important direction for the development of the automobile industry. Nano-inorganic fillers are added to increase the strength of the material, but the addition of a large amount of fillers will also reduce the toughness of the material. The general solution to the decline in toughness is to modify nano-inorganic fillers: nano-montmorillonite (MMT) with a two-dimensional layered structure has the characteristics of cation exchange, intercalation and interlayer peeling into 1nm thick sheets. , has become an excellent filler for the preparation of polymer nanocomposites. However, the above-mentioned polypropylene / montmorillonite composite has the defects of complicated preparation process and insuff...

Claims

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Application Information

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IPC IPC(8): C08G63/91C08G63/127C08L23/14C08L23/06C08L77/06C08L67/00C08K3/34
CPCC08G63/127C08G63/914C08K2201/011C08L23/06C08L23/14C08L77/06C08L67/00C08K3/346
Inventor 程文超陈瑶何浏炜陈胜杰熊值付伟赖昂王传新李文昭
Owner WUHAN JINFA TECH CO LTD
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