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Inorganic particle enhanced PC/PET alloy and preparation method thereof

A technology of inorganic particles and alloys, applied in the field of inorganic particle reinforced PC/PET alloys and its preparation, can solve the problems of poor compatibility and low mechanical strength, and achieve good application prospects, high strength and good weather resistance

Inactive Publication Date: 2015-06-17
QINGDAO TONGCHUANG ENERGY SAVING ENVIRONMENTAL PROTECTION ENG
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  • Summary
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  • Application Information

AI Technical Summary

Problems solved by technology

However, since PET is a crystalline polymer and PC is an amorphous polymer, the PC / PET alloy is a typical amorphous / crystalline blend system, and its compatibility is not good, and the PC / PET alloys on the market still have low mechanical strength. The problem

Method used

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Embodiment Construction

[0019] The technical solutions of the present invention will be further described below in conjunction with specific embodiments.

[0020] An inorganic particle reinforced PC / PET alloy, the components of which are: 45% PC, 24% PET, 25% heavy calcium carbonate with a particle size between 20nm and 10μm, 3% compatibilizer, Light stabilizer 1.5%, aluminum-titanium composite coupling agent 0.5%, antioxidant 0.2%, silicone powder 0.8%. Wherein, the PC is bisphenol A type aromatic polycarbonate with a weight average molecular weight of 20000-40000 g / mol; the PET is polyethylene terephthalate with a characteristic viscosity of 0.6-1.0 dL / g The compatibilizer is a terpolymer of glycidyl methacrylate, styrene and acrylonitrile; the light stabilizer is a hindered amine light stabilizer GW-944Z with a mass ratio of 1:1 and a hindered amine light stabilizer The compound of GW-622; the antioxidant is a compound of antioxidant 1010 and antioxidant 168 with a mass ratio of 1:1.

[0021] Th...

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Abstract

The invention discloses an inorganic particle enhanced PC / PET alloy and a preparation method thereof. The alloy is composed of the following components in percentage by weight: 30 to 60% of PC, 10 to 30% of PET, 5 to 25% of inorganic particle, 2 to 4% of compatilizer, 0.5 to 2% of light stabilizer, 0.1 to 0.5% of coupling agent, 0.1 to 0.5% of antioxidant, and 0.1 to 1% of lubricant; wherein the inorganic particle has a particle size of 20 nm to 10 [mu]m and is one of heavy calcium carbonate, gas silicon dioxide, and talcum powder. The PC / PET alloy has the advantages of PC and PET, solves the shortages of single components, and moreover has the characteristics of high strength, good rigidity, excellent heat resistant performance, excellent corrosion resistant performance, good weatherability, excellent electric performance, excellent processing ability, and low cost.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to an inorganic particle reinforced PC / PET alloy and a preparation method thereof. Background technique [0002] Polycarbonate (PC) is an engineering plastic with excellent performance. It has the advantages of high impact strength, creep resistance, good dimensional stability, heat resistance, transparency, and excellent dielectric properties. However, PC has high melt viscosity and poor fluidity. Poor solvent resistance, especially poor resistance to organic solvents and alkaline drugs, prone to stress cracking and swelling in solvents and alkaline environments, and sensitive to notches. Polyethylene terephthalate (PET) is a translucent crystalline thermoplastic polyester with high heat resistance, toughness, fatigue resistance, self-lubrication, low coefficient of friction, weather resistance, and is still Maintain various physical properties (including electrical prop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L67/02C08L33/10C08K13/06C08K9/04C08K3/26C08K5/13C08K5/526
CPCC08L69/00C08K2201/003C08L2201/08C08L2205/035
Inventor 不公告发明人
Owner QINGDAO TONGCHUANG ENERGY SAVING ENVIRONMENTAL PROTECTION ENG
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