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High-toughness PETG material and application thereof

A technology with high toughness and raw materials, applied in the field of PETG, can solve problems such as high melt viscosity, reduced material transparency, and improved material water absorption

Active Publication Date: 2021-01-26
银金达(上海)新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The demand for materials in electronic components is getting higher and higher, so it is necessary to toughen PETG. At present, the mainstream toughening method in the market is to add glass fiber to toughen, but it has many disadvantages. (1) Glass fiber Addition will reduce the transparency of the material; (2) After the addition of glass fiber, the melt viscosity of the system becomes large and the fluidity becomes poor, so the extrusion temperature must be increased, which causes difficulties in the preparation process; (3) The addition of glass fiber will Resulting in increased water absorption of the material

Method used

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  • High-toughness PETG material and application thereof
  • High-toughness PETG material and application thereof
  • High-toughness PETG material and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Add 70g of polymerized monomer (1), 120g of polymerized monomer (3), 200g of polymerized monomer (5), and 2g of di-tert-butyl peroxide into 400g of toluene, and drop them into the reactor at a constant speed of 110°C. The dropwise addition time is 7 hours. After the dropwise addition is completed, the mixture is kept warm for 2 hours and discharged, and the toughened polymer is obtained after the solvent is removed by rotary evaporation.

[0048] Use gel permeation chromatography to test its molecular weight, Mw=123998.

[0049] 100 parts of PETG material (the molar ratio of ethylene glycol and 1,4 cyclohexanedimethanol is 5:5), 2 parts of the above toughening polymer, 0.2 parts of antioxidant 1010, 0.4 parts of lubricant Honeywell Add polyethylene wax 400A into the high-speed mixer, and stir at 600rpm for at least 20 minutes until it is evenly stirred. The materials are fed into a twin-screw extruder, and the extrusion temperature is 230° C. to obtain masterbatches. ...

Embodiment 2

[0051] Add 110g of polymerized monomer (2), 300g of polymerized monomer (5), and 1.5g of di-tert-butyl peroxide into 400g of toluene, and drop them into the reactor at a constant speed of 110°C for 7 hours. After the dropwise addition was completed, the mixture was kept warm for 2 hours and discharged, and the toughened polymer was obtained after the solvent was removed by rotary evaporation.

[0052] Use gel permeation chromatography to test its molecular weight, Mw=157662.

[0053] 100 parts of PETG material with a weight average molecular weight of about 250,000 (the molar ratio of ethylene glycol and 1,4 cyclohexanedimethanol is 5:5), 3 parts of the above toughened polymer, 0.3 parts of antioxidant 626, Add 0.4 parts of lubricant pentaerythritol stearate into a high-speed mixer, and stir at 600 rpm for at least 20 minutes until uniform. The materials are fed into a twin-screw extruder, and the extrusion temperature is 230° C. to obtain masterbatches.

Embodiment 3

[0055] Add 150g of polymerized monomer (1), 100g of polymerized monomer (2), 150g of polymerized monomer (4) and 1.7g of di-tert-butyl peroxide into 400g of toluene, and drop them into the reactor at a constant speed of 110°C. The dropwise addition time is 7 hours. After the dropwise addition is completed, the mixture is kept warm for 2 hours and discharged, and the toughened polymer is obtained after the solvent is removed by rotary evaporation.

[0056] Use gel permeation chromatography to test its molecular weight, Mw=137792.

[0057] 100 parts of PETG material with a weight average molecular weight of about 250,000 (the molar ratio of ethylene glycol and 1,4 cyclohexanedimethanol is 5:5), 5 parts of the above toughened polymer, 0.3 parts of antioxidant 1029, Add 0.5 part of lubricant magnesium stearate into the high-speed mixer, and stir at 600 rpm for at least 20 minutes until the mixture is uniform. The materials are fed into a twin-screw extruder, and the extrusion tem...

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Abstract

The invention discloses a high-toughness PETG material, which comprises 100 parts of a PETG material, 0.1-0.5 part of an antioxidant, 1-5 parts of a toughening polymer and 0.1-0.5 part of a lubricant,has very good toughness, and can be applied to the fields of capacitors, cable insulation, printed circuit substrates and the like.

Description

technical field [0001] The invention relates to the field of PETG, in particular to a high-toughness PETG material. Background technique [0002] PETG is a very good material, which is a polycondensation product of three monomers: terephthalic acid (PTA), ethylene glycol (EG) and 1,4-cyclohexanedimethanol (CHDM). PETG sheet has outstanding toughness and high impact strength, its impact strength is 3~10 times that of modified polyacrylate, and has a wide processing range, high mechanical strength and excellent flexibility, compared with PVC transparency High, good gloss, easy to print and has environmental advantages. [0003] The demand for materials in electronic components is getting higher and higher, so it is necessary to toughen PETG. At present, the mainstream toughening method in the market is to add glass fiber to toughen, but it has many disadvantages. (1) Glass fiber Addition will reduce the transparency of the material; (2) After the addition of glass fiber, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L33/14C08L33/16C08L23/06C08K5/103C08K5/098C08K5/101C08F220/36C08F220/30C08F220/32
CPCC08L67/02C08F220/36C08F220/302C08F220/32C08L2205/03C08L2203/20C08L2203/202C08L33/066C08L23/06C08K5/103C08K5/098C08K5/101
Inventor 欧雪光王翔宇陈洪
Owner 银金达(上海)新材料有限公司
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