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Reinforced and modified PC/PTT alloy and preparation method thereof

A 20% PTT, modified technology, applied in the field of reinforced modified PC/PTT alloy and its preparation, can solve the problems of limiting the application effect and application range of PC/PTT alloy, poor interface bonding, poor mechanical properties, etc., to achieve Good practical value and promotion and application prospects, high impact resistance, and the effect of improving the application field

Inactive Publication Date: 2015-08-19
QINGDAO JIAYIYANG IND & TRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since PC is a non-crystalline polymer, PC / PTT is a typical non-crystalline and crystalline blend system, resulting in defects such as poor interface bonding, low impact strength, and poor mechanical properties, which will greatly limit the use of PC. Application effect and scope of application of PTT alloy in various fields

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A reinforced modified PC / PTT alloy, the composition of which is: PC 46%, PTT 20%, GMA-St-AN 3%, glass fiber 12%, nano kaolin 10%, γ-epoxy Propoxypropyl trimethoxysilane 0.2%, ABS graft polymer 8%, antioxidant 1010 0.1%, antioxidant 168 0.1%, TAF 0.6%, the PC has a weight average molecular weight of 20000-40000g / mol of bisphenol A aromatic polycarbonate, the PTT is polytrimethylene terephthalate with an intrinsic viscosity of 0.7-1.2dL / g, and the GMA-St-AN is a compatibilizer glycidyl methacrylate - Styrene-acrylonitrile terpolymer, and glycidyl methacrylate accounts for 1 wt% to 5 wt%, acrylonitrile accounts for 27 wt% to 30 wt%, and the surface of the glass fiber is treated with a silane coupling agent Alkali-free chopped glass fibers, the nano-kaolin is kaolin nanoparticles with a longitudinal thickness of 20-50nm and a sheet size of 300-500nm, and the ABS graft polymer is maleic anhydride and methacrylic acid Methyl ester bifunctional grafted ABS polymer.

[0022]...

Embodiment 2

[0024] A reinforced modified PC / PTT alloy, its components are proportioned by mass percentage: PC 40%, PTT 40%, GMA-St-AN 4%, glass fiber 8%, nano-kaolin 4%, γ-epoxy Propoxypropyl trimethoxysilane 0.1%, ABS graft polymer 3%, antioxidant 1010 0.1%, antioxidant 168 0.1%, TAF 0.7%, the PC has a weight average molecular weight of 20000-40000g / mol of bisphenol A aromatic polycarbonate, the PTT is polytrimethylene terephthalate with an intrinsic viscosity of 0.7-1.2dL / g, and the GMA-St-AN is a compatibilizer glycidyl methacrylate - Styrene-acrylonitrile terpolymer, and glycidyl methacrylate accounts for 1 wt% to 5 wt%, acrylonitrile accounts for 27 wt% to 30 wt%, and the surface of the glass fiber is treated with a silane coupling agent Alkali-free chopped glass fibers, the nano-kaolin is kaolin nanoparticles with a longitudinal thickness of 20-50nm and a sheet size of 300-500nm, and the ABS graft polymer is maleic anhydride and methacrylic acid Methyl ester bifunctional grafted A...

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Abstract

The present invention discloses a reinforced and modified PC / PTT alloy and a preparation method thereof. The reinforced and modified PC / PTT alloy comprises the following components in mass percentage: 40% to 70% of PC, 20% to 40% of PTT, 2% to 4% of GMA-St-AN, 8% to 12% of glass fibers, 2% to 10% of nano-kaolin, 0.1% to 0.5% of coupling agent, 3% to 8% of ABS-graft polymers, 0.1% to 0.5% of antioxidant 1010, 0.1% to 0.5% of antioxidant 168, and 0.1% to 1% of TAF. According to the invention, the reinforced and modified PC / PTT alloy integrates the original advantages of PC and PTT, and also has the application effects of high strength, high impact resistance, low warpage and low cost. Meanwhile, the application field of the PC / PTT alloy is greatly improved. Therefore, the PC / PTT alloy is good in practical value and polarization and application prospect.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a reinforced modified PC / PTT alloy and a preparation method thereof. Background technique [0002] Due to the high molecular rigidity and steric hindrance of polycarbonate (PC), its melting temperature is high, processing is difficult, and it is difficult to produce large thin-walled products, and the residual stress of the product is large, which is prone to stress cracking, and PC is sensitive to notches. The hydrolytic stability and solvent resistance are not good, and these defects limit the practical application of PC. Polytrimethylene terephthalate (PTT) is a new type of polyester material with fast crystallization speed. It is easy to realize high-speed molding and has excellent solvent resistance. However, its products have a large molding shrinkage rate and low notched impact strength. Disadvantages such as insufficient rigidity at high temperature. Blending ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L67/02C08L25/12C08L51/00C08K13/06C08K9/06C08K7/14C08K3/34C08K5/20
CPCC08L69/00C08K2201/011C08L2205/035C08L2205/08
Inventor 不公告发明人
Owner QINGDAO JIAYIYANG IND & TRADE