Filler modified PC/PET alloy material and preparation method thereof

An alloy material and modification technology, which is applied in the field of filler modified PC/PET alloy material and its preparation, can solve the problems of high melt viscosity, large molding shrinkage, and high cost, and achieve simple preparation process, improved strength, and low cost. low effect

Inactive Publication Date: 2015-06-10
QINGDAO JIAYIYANG IND & TRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[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 solvent resistance. , and sensitive to the gap, the cost is also high
Polyethylene terephthalate (PET) is a translucent crystalline thermoplastic polyester with high heat resistance, toughness, fatigue resistance, self-lubrication, and low coefficient of friction, but the notched impact strength of PET is low, And vulnerable to halogenated hydrocarbons, poor hydrolysis resistance, large molding shrinkage

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A filler-modified PC / PET alloy material, the components of which are: PC 40%, PET 27%, composite filler 20%, POE-g-MAH 10%, styrene-maleic anhydride-acrylic acid Glycidyl ester terpolymer (GMA-g-SMA) 2%, hindered phenolic antioxidant 1010 and phosphite antioxidant 168 by mass 1:1 compound 0.2%, pentaerythritol stearate (PETS) 0.8%. Wherein, the PC is bisphenol A type aromatic polycarbonate, the weight average molecular weight is 20000-30000g / mol; the PET is polyethylene terephthalate, and its characteristic viscosity is 0.6-1.0dL / g; the composite filler is a composite filler prepared after the mixture of heavy calcium carbonate, acicular wollastonite and precipitated barium sulfate with a mass ratio of 2:1:1 is activated by an aluminum-titanium composite coupling agent. The particle size of the ground calcium carbonate is less than 5 μm, the particle size of the acicular wollastonite is between 5 μm and 20 μm, and the particle size of the precipitated barium sulfate i...

Embodiment 2

[0023] A filler-modified PC / PET alloy material, the components of which are: PC 55%, PET 25%, composite filler 10%, SEBS-g-MAH 6%, styrene-maleic anhydride-acrylic acid Glycidyl ester terpolymer (GMA-g-SMA) 3%, hindered phenolic antioxidant 1076 and phosphite antioxidant 168 by mass 1:1 compound 0.2%, ethylene bisstearin Amide (EBS) 0.8%. Wherein, the PC is bisphenol A type aromatic polycarbonate, the weight average molecular weight is 20000-30000g / mol; the PET is polyethylene terephthalate, and its characteristic viscosity is 0.6-1.0dL / g; the composite filler is a composite filler prepared after the mixture of heavy calcium carbonate, acicular wollastonite and precipitated barium sulfate with a mass ratio of 2:1:1 is activated by an aluminum-titanium composite coupling agent. The particle size of the ground calcium carbonate is less than 5 μm, the particle size of the acicular wollastonite is between 5 μm and 20 μm, and the particle size of the precipitated barium sulfate i...

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PUM

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Abstract

The invention discloses a filler modified PC / PET alloy material and a preparation method thereof. The filler modified PC / PET alloy material comprises following ingredients, by mass, 40 to 60% of PC, 5 to 30% of PET, 5 to 20% of a composite filler, 5 to 10% of a flexibilizer, 1 to 3% of a compatilizer, 0.1 to 0.5% of an anti-oxidant, and 0.1 to 1% of a lubricant. Beneficial effects are that: compared with the prior art, the filler modified PC / PET alloy material possesses advantages of PC and PET; performance defects of single component are avoided; the composite filler is used for modification so as to improve strength, rigidity, and thermal stability of the alloy system greatly; the preparation method is simple; cost is low; applicability is excellent; and the filler modified PC / PET alloy material is suitable for industrial production.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a filler-modified PC / PET alloy material 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 solvent resistance. , and is sensitive to the gap, and the cost is also high. Polyethylene terephthalate (PET) is a translucent crystalline thermoplastic polyester with high heat resistance, toughness, fatigue resistance, self-lubrication, and low coefficient of friction, but the notched impact strength of PET is low, And it is easily corroded by halogenated hydrocarbons, has poor hydrolysis resistance and large molding shrinkage. The PC / PET alloy obtained by blending PC and PET has not only ...

Claims

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Application Information

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IPC IPC(8): C08L69/00C08L67/02C08K13/06C08K9/04C08K3/26C08K7/00C08K3/34C08K3/30C08K5/134C08K5/526B29B9/06
CPCC08L69/00B29B9/06B29C48/92B29C2948/92704C08K2201/003C08L2201/08C08L2205/035C08L67/02C08L51/06C08L35/06C08K13/06C08K9/04C08K2003/265C08K7/10C08K2003/3045C08L51/00
Inventor 不公告发明人
Owner QINGDAO JIAYIYANG IND & TRADE
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