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Modified material and preparation method therefor

A modified material and nanoparticle technology, applied in the field of nanoparticle modified filled PC/PET alloy and its preparation, can solve the problems of affecting application, poor compatibility, poor strength, etc., and achieve good processability and aging resistance. Excellent, good compatibility

Inactive Publication Date: 2016-04-06
QINGDAO YISHIBAO PLASTIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Then, since PET is a crystalline polymer and PC is an amorphous polymer, the PC / PET alloy is a typical amorphous / crystalline blend system, which has poor compatibility and poor strength, which affects its application in certain fields.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A nanoparticle modified filled PC / PET alloy, the components of which are proportioned by mass percentage: PC60%, PET25%, nanoparticle 8%, toughening compatibilizer 5%, aluminum-titanium composite coupling agent 0.3%, The compound of hindered amine light stabilizer HS-944 and HS-622 with a mass ratio of 1:1 is 1%, the compound of antioxidant 1010 and antioxidant 168 with a mass ratio of 1:1 is 0.2%, pentaerythritol hard Fatty acid ester (PETS) 0.5%. Wherein, the PC is bisphenol A type aromatic polycarbonate, the weight average molecular weight is 20000-35000g / mol; the PET is polyethylene terephthalate, and its characteristic viscosity is 0.6-1.0dL / g; the nanoparticles are fumed silica with a particle size of 10-100nm and a specific surface area of ​​120-200m 2 / g; the toughening compatibilizer is ethylene-butyl acrylate-glycidyl methacrylate copolymer (PTW), and the mass percentage content of glycidyl methacrylate contained in it is 3%~8% .

[0022] Preparation metho...

Embodiment 2

[0024] A nanoparticle modified filled PC / PET alloy, the components of which are proportioned by mass percentage: PC48%, PET35%, nanoparticle 10%, toughening compatibilizer 5%, aluminum-titanium composite coupling agent 0.5%, The compound of hindered amine light stabilizer HS-944 and HS-622 with a mass ratio of 1:1 is 0.8%, the compound of antioxidant 1010 and antioxidant 168 with a mass ratio of 1:1 is 0.2%, ethylene Bis stearamide (EBS) 0.5%. Wherein, the PC is bisphenol A type aromatic polycarbonate, the weight average molecular weight is 20000-35000g / mol; the PET is polyethylene terephthalate, and its characteristic viscosity is 0.6-1.0dL / g; the nanoparticles are fumed silica with a particle size of 10-100nm and a specific surface area of ​​120-200m 2 / g; the toughening compatibilizer is ethylene-butyl acrylate-glycidyl methacrylate copolymer (PTW), and the mass percentage content of glycidyl methacrylate contained in it is 3%~8% .

[0025] Preparation method: (1), dry ...

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Abstract

The invention discloses a modified material and a preparation method therefor. A nanoparticle modifying filled PC / PET alloy disclosed by the invention contains the ingredients in percentage by mass: 45-60% of PC, 15-40% of PET, 5-10% of nanoparticles, 2-5% of toughening compatibilizer, 0.1-0.5% of coupling agent, 0.5-2% of photostabilizer, 0.1-0.5% of antioxidant and 0.1-1% of lubricant. The nanoparticle modifying filled PC / PET alloy has the beneficial effects that compared with the prior art, the PC / PET alloy disclosed by the invention has the advantages that the PC / PET alloy simultaneously has inherent advantages of PC and PET, the property defect of a single ingredient is made up, the compatibility of blending of PC and PET is good, the aging resistance is excellent, and the processability is good; and meanwhile, the nanoparticles are added to carry out modification, so that the tensile strength, impact strength, wear resistance, heat resistance, electric properties and the like of an alloy system can be remarkably improved.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a PC / PET alloy filled with modified nanoparticles and a preparation method thereof. Background technique [0002] Polycarbonate / polyethylene terephthalate (PC / PET alloy) is an engineering plastic with excellent comprehensive properties. It not only has the rigidity and heat resistance of PC, but also has the solvent resistance of PET, and can be widely used In the fields of automobile, electronic appliances, chemical industry and so on. Then, since PET is a crystalline polymer and PC is an amorphous polymer, the PC / PET alloy is a typical amorphous / crystalline blend system, which has poor compatibility and poor strength, which affects its application in certain fields. . Therefore, a third component or additive is usually added to the PC / PET alloy system to improve the performance of the PC / PET alloy and expand its application space. Contents of the invention [000...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L69/00C08L67/02C08L23/08C08K13/06C08K9/04C08K3/36C08K5/134C08K5/526B29C47/92B29C48/92
Inventor 栾蓉王世字
Owner QINGDAO YISHIBAO PLASTIC
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