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High-strength high-toughness modified PET/PTT alloy material

A high-strength, high-toughness, alloy material technology, applied in the field of high-strength, high-toughness modified PET/PTT alloy materials, can solve the problems of poor high heat resistance, limited application effect, unstable mechanical properties, etc., and achieve good dimensional stability and adaptability Wide range of effects and low cost

Inactive Publication Date: 2015-08-19
王妮娜
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the unstable mechanical properties and poor high heat resistance of PET / PTT will limit its application effect

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A high-strength and high-toughness modified PET / PTT alloy material, its components are proportioned by mass percentage: PET 37%, PTT 30%, modified carbon fiber 15%, plasticizer 10%, AS-g-GMA 4% , 3% nano-silica, 0.5% compound of antioxidant 1076 and antioxidant 168, and 0.5% pentaerythritol stearate. Chopped polyacrylonitrile carbon fibers activated by base trimethoxysilane coupling agent, the plasticizer is a compound of thermoplastic polyether ester TPEE and polyisobutylene adipate with a mass ratio of 4:1.

[0020] Preparation method: (1) Dry PET and PTT in a forced-air circulation oven at 110°C to 120°C for 6 to 8 hours before use; (2) Put chopped polyacrylonitrile carbon fibers in a volume ratio of 3 : 1 in the mixed acid solution of sulfuric acid with a mass content of more than 98% and nitric acid with a mass content of more than 60%, under ultrasonic vibration and mechanical stirring, treat for 2 to 4 hours, then wash with a large amount of deionized water until...

Embodiment 2

[0022] A high-strength and high-toughness modified PET / PTT alloy material, the composition of which is proportioned by mass percentage: PET 63%, PTT 20%, modified carbon fiber 8%, plasticizer 5%, AS-g-GMA 2.5% , nano-silicon dioxide 1%, antioxidant 1010 0.1%, pentaerythritol stearate 0.4%, the modified carbon fiber is pretreated by oxidation on the surface and activated by γ-aminopropyltrimethoxysilane coupling agent The processed chopped polyacrylonitrile carbon fiber, the plasticizer is a compound of thermoplastic polyether ester TPEE and polyisobutylene adipate with a mass ratio of 4:1.

[0023] Preparation method: (1) Dry PET and PTT in a forced-air circulation oven at 110°C to 120°C for 6 to 8 hours before use; (2) Put chopped polyacrylonitrile carbon fibers in a volume ratio of 3 : 1 in the mixed acid solution of sulfuric acid with a mass content of more than 98% and nitric acid with a mass content of more than 60%, under ultrasonic vibration and mechanical stirring, tre...

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PUM

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Abstract

The invention discloses a high-strength high-toughness modified PET / PTT alloy material, which comprises the following components by mass: 37%-63% of PET, 20%-30% of PTT, 8%-15% of modified carbon fiber, 5%-10% of a plasticizer, 2%-4% of AS-g-GMA, 1%-3% of nano-silicon dioxide, 0.1%-0.5% of an antioxidant, and 0.1%-1% of a lubricant. The modified carbon fiber is short cut polyacrylonitrile carbon fiber with the surface subjected to oxidation pre-treatment and gamma-aminopropyl trimethoxy silane coupling agent activation treatment. The high-strength high-toughness modified PET / PTT alloy material provided by the invention integrates the respective advantages of PET and PTT, also has the advantages of high strength, high modulus, high toughness, good electrical conductivity, thermal conductivity and thermal stability, etc., and has the characteristics of good size stability, strong chemical resistance, low cost and wide adaptability.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a high-strength and high-toughness modified PET / PTT alloy material. Background technique [0002] Polyethylene terephthalate (PET) / polytrimethylene terephthalate (PTT) is a new type of plastic alloy material, which has excellent physical and chemical properties and processing properties, and low cost, so it is used in automobiles, Electronics, electrical appliances, fiber and other fields will have broad application prospects. However, PET / PTT has unstable mechanical properties and poor high heat resistance, which will limit its application effect. Contents of the invention [0003] The object of the present invention is to provide a high-strength and high-toughness modified PET / PTT alloy material. [0004] The technical scheme adopted by the present invention to solve the technical problem is: a high-strength and high-toughness modified PET / PTT alloy material, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08K13/06C08K9/06C08K7/06C08K3/36
Inventor 不公告发明人
Owner 王妮娜
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