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A kind of toughened modified transparent PET sheet composite material and preparation method thereof

A technology of toughening modified and composite materials is applied in the field of toughened modified transparent PET sheet composite materials and its preparation, which can solve the problems of increasing material cost, strength, rigidity, and heat resistance, and achieve consistent optical properties. , Excellent impact strength, and the effect of reducing production costs

Active Publication Date: 2018-05-08
中山京工高分子材料有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] This patent uses epoxy-based elastomer toughened plastics. Although it can greatly improve the impact resistance of the material, it also causes a serious decline in its overall strength, rigidity, and heat resistance. Material costs

Method used

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  • A kind of toughened modified transparent PET sheet composite material and preparation method thereof
  • A kind of toughened modified transparent PET sheet composite material and preparation method thereof
  • A kind of toughened modified transparent PET sheet composite material and preparation method thereof

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Effect test

Embodiment 1-5

[0038] The preparation method of embodiment 1-5 is:

[0039] First dry the polyethylene terephthalate in an oven at 170°C for 3 hours, and at the same time, treat the nanocrystalline silicon with the silane coupling agent, then mix it with the thermoplastic elastomer, and finally Mix the raw materials of other components uniformly to form a blend, melt and extrude through a twin-screw extruder, dry and cool, and granulate;

[0040] Among them, the surface treatment method of nanocrystalline silicon is: add a certain amount of nanocrystalline silicon into the mixed solution of absolute ethanol / water (volume ratio is 3:1), and make it fully dispersed under 4000r / min high-speed shear, adjust The shear rate is 2000r / min, the reaction temperature is about 70°C, the silane coupling agent is added, and the pH value of the system is adjusted to about 4 with oxalic acid solution. After reacting for 90 minutes, the suspension of nanocrystalline silicon is suction-filtered, and the filt...

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Abstract

The invention discloses a toughening modified transparent PET (polyethylene terephthalate) sheet composite and a preparation method thereof. The toughening modified transparent PET sheet composite comprises components in percentage by weight as follows: 75%-85% of PET, 0.1%-0.5% of nano crystalline silicon, 5%-10% of thermoplastic elastomers, 1%-5% of liquid polypropylene glycol ester, 8%-15% of polycarbonate, 0.1%-0.3% of a silane coupling agent and 0.1%-0.5% of an antioxidant. The PET sheet composite has the advantages of excellent impact-resistance strength, high rigidity and high toughness under the condition that characteristics of PET are not affected, and further has the effect of high transparency.

Description

【Technical field】 [0001] The invention relates to a toughened modified transparent PET sheet composite material and a preparation method thereof, belonging to the technical field of PET modified materials. 【Background technique】 [0002] Polyethylene terephthalate is cheap, has the advantages of excellent wear resistance, heat resistance, chemical resistance, electrical insulation and high mechanical strength, but its shortcomings of high brittleness and poor toughness still limit its scope of application. [0003] Chinese patent 200410017174.5 discloses a high-toughness polyethylene terephthalate copolymer and a preparation method thereof. The composition of this high-toughness PET blend is PET, an elastomer containing epoxy groups and an oxygen-containing crosslinking agent. This patent has only set forth the composition of toughened PET and has not considered the problem of the transparency of the product prepared by this invention. [0004] This patent uses epoxy-base...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/02C08L69/00C08L53/02C08L71/02C08K13/06C08K9/10C08K9/06C08K3/02B29B9/06B29C47/92B29C48/92
CPCB29B9/06B29C48/92B29C2948/92514B29C2948/92542B29C2948/9258B29C2948/92704C08K2201/003C08K2201/011C08L67/02C08L2201/08C08L2201/10C08L2205/035C08L2207/04C08L69/00C08L53/025C08L71/02C08K13/06C08K9/10C08K9/06C08K2003/023
Inventor 涂志刚钟永强叶德成刘晓艳赵素芬张莉琼熊立贵
Owner 中山京工高分子材料有限公司
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