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Highly transparent PET (polyethylene terephthalate) scratch-resistant masterbatch and preparation method

A masterbatch and transparent technology, which is applied in the field of high-transparency PET anti-scratch masterbatch and its preparation, which can solve the problem of large differences in hardness and wear resistance, insignificant changes in sheet hardness and scratch resistance, and failure to reach sheets. Anti-scratch strength and other issues, to achieve the effect of improving surface hardness and thermal deformation temperature, improving scratch resistance performance, and improving performance after scratch resistance

Active Publication Date: 2019-02-26
东莞市源丰高分子材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the hardness and wear resistance of the film material are very different from that of the sheet material. The formula of the above technical solution does not significantly change the hardness and scratch resistance of the sheet material, and it cannot reach the scratch resistance strength of the sheet material at all.

Method used

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  • Highly transparent PET (polyethylene terephthalate) scratch-resistant masterbatch and preparation method

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preparation example Construction

[0071] A preparation method of highly transparent PET anti-scratch masterbatch, comprising the following steps:

[0072] S1 First, prepare the raw materials according to the ratio of each component. The PET raw material is ground into powder in advance, and the particle size is less than 60 mesh;

[0073] S2 Mix the raw materials evenly for later use. The feeding sequence is to add 1 / 3-2 / 3 of the total amount of PET first, then add other raw materials, add the remaining PET, and finally add PCTA;

[0074] In S3, put the uniformly mixed raw materials in S2 into the extruder and extrude them.

[0075] The extruder in S3 is divided into 12 temperature setting zones, the temperature of zone 1 is 190-210℃, the temperature of zone 1, zone 2, zone 3 and zone 4 increases gradually, zone 4, zone 5, zone 6 and zone 7 , Zone 8, and Zone 9 maintain a constant temperature, and after Zone 10, the temperature begins to drop, and the temperature in Zone 12 is higher than that in Zone 1.

Embodiment 19

[0081] A preparation method of highly transparent PET anti-scratch masterbatch,

[0082] Adding the masterbatch obtained in the foregoing embodiments to PET comprises the following steps respectively:

[0083] S1 First, prepare the raw materials according to the proportion of each component. The PET raw materials are ground into powder in advance, and the particle size is 60 mesh to 70 mesh;

[0084] In S2, the raw materials are mixed evenly for later use. The feeding sequence is to add 1 / 2 of the total amount of PET powder in S1 first, and then add nano-spherical silica, micron-scale spherical silica, polyester wax, calcium montanate, anti Oxygen, the remaining PET powder, and finally add PCTA; the temperature of the high-speed mixer is set at 90-120°C, and a certain amount of preheating is carried out. Stir at a low speed within 5-10 minutes after the start, and the number of revolutions is 200-240 rpm , and then stir at high speed for 8-13 minutes at a speed of 700-800 rpm...

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Abstract

The invention relates to the technical field of high polymer materials, in particular to a highly transparent PET (polyethylene terephthalate) scratch-resistant masterbatch and a preparation method. The masterbatch is characterized by comprising the following raw materials in parts by weight: 50-80 parts of PET, 5-20 parts of a scratch-resistant assistant, 5-20 parts of a smooth agent, 10-30 partsof PCTA, 3-8 parts of calcium montanate, 0.1-1 part of an antioxidant and 3-20 parts of an antiblocking agent. A PET sheet prepared from the ingredients in parts by weight is high in transparency andhigh in scratch resistance.

Description

technical field [0001] The invention relates to the technical field of polymer materials, more specifically, it relates to a highly transparent PET anti-scratch masterbatch and a preparation method. Background technique [0002] Polyethylene terephthalate (PET) is a crystalline polymer that is mainly used in synthetic fibers, electrical appliances due to its excellent mechanical strength, electrical insulation, heat resistance and chemical resistance. Insulation materials and films and other fields. [0003] Chinese invention patent CN106479140A discloses a PET color masterbatch, which consists of the following components by weight: 30-60 parts of PET carrier, 3-12 parts of turpentine, 5-15 parts of anti-blocking agent, and 10-20 parts of slip agent , 10-20 parts of antistatic agent, 10-25 parts of pigment, 2-5 parts of nucleating agent, 5-10 parts of soap liquid, 6-12 parts of antioxidant, 15-25 parts of flame retardant, 10-25 parts of moisture-proof additive 15 parts, po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08K3/36C08K7/18C08K5/098C08J3/22
CPCC08J3/226C08J2367/02C08J2467/02C08K3/36C08K5/098C08K7/18
Inventor 杨洁贤郑培娜江静芬杨哲武郑春祥
Owner 东莞市源丰高分子材料科技有限公司
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