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A kind of high tenacity petg material and its application

A high toughness and toughening technology, applied in the field of PETG, can solve the problems of reducing material transparency, poor fluidity, and improving water absorption of materials

Active Publication Date: 2022-06-28
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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  • A kind of high tenacity petg material and its application
  • A kind of high tenacity petg material and its application
  • A kind of high tenacity petg material and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] 70g of polymerized monomer (1), 120g of polymerized monomer (3), 200g of polymerized monomer (5), 2g of di-tert-butyl peroxide were added to 400g of toluene, and added dropwise to the reactor at a uniform speed at 110 °C, The dropping time is 7 hours, after the dropping is completed, the temperature is kept for 2 hours and the material is discharged, and the toughened polymer is obtained after the solvent is removed by rotary evaporation.

[0048] Its molecular weight was measured by gel permeation chromatography, 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 part of antioxidant 1010, 0.4 part of lubricant Honeywell Add polyethylene wax 400A to the high-speed mixer, and stir at 600 rpm for at least 20 minutes until the stirring is uniform. The material was fed into a twin-screw extruder, and the extrusion temperature was 230° C. to obtain master batc...

Embodiment 2

[0051] 110g of polymerized monomer (2), 300g of polymerized monomer (5), and 1.5g of di-tert-butyl peroxide were added to 400g of toluene, and added dropwise to the reactor at a constant speed at 110 °C for 7 hours. After the dropping is completed, the material is kept for 2 hours and discharged, and the toughened polymer is obtained after the solvent is removed by rotary evaporation.

[0052] Its molecular weight was measured by gel permeation chromatography, 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 toughening polymer, 0.3 part of antioxidant 626, Add 0.4 part of lubricant pentaerythritol stearate to the high-speed mixer, and stir at 600 rpm for at least 20 minutes until the mixture is uniform. The material was fed into a twin-screw extruder, and the extrusion temperature was 230° C. to obtain master batches.

Embodiment 3

[0055] 150g of polymerized monomer (1), 100g of polymerized monomer (2), 150g of polymerized monomer (4) and 1.7g of di-tert-butyl peroxide were added to 400g of toluene, and added dropwise to the reactor at a uniform speed at 110°C, The dropping time is 7 hours, after the dropping is completed, the temperature is kept for 2 hours and the material is discharged, and the toughened polymer is obtained after the solvent is removed by rotary evaporation.

[0056] Its molecular weight was measured by gel permeation chromatography, 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 toughening polymer, 0.3 part of antioxidant 1029, Add 0.5 part of the lubricant magnesium stearate to the high-speed mixer, and mix at 600 rpm for at least 20 minutes until the mixing is uniform. The material was fed into a twin-screw extruder, and the extrus...

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Abstract

The invention discloses a high-toughness PETG material, which comprises 100 parts of PETG material, 0.1-0.5 parts of antioxidant, 1-5 parts of toughening polymer, and 0.1-0.5 parts of lubricant. The PETG material of the present invention has very good Toughness, can be used in fields such as capacitors, cable insulation, printed circuit substrates, etc.

Description

technical field [0001] The invention relates to the field of PETG, and more particularly to a high-toughness PETG material. Background technique [0002] PETG is a very good material, which is the product of polycondensation 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 to PVC transparency High, glossy, easy to print and environmentally friendly. [0003] The demand for materials in electronic components is getting higher and higher, so PETG needs to be toughened. At present, the mainstream toughening methods in the market are toughening by adding glass fibers, but there are many disadvantages. (1) Glass fibers Adding glass fiber will reduce the transparency of the material; (2) After glass fiber is...

Claims

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Application Information

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Patent Type & Authority Patents(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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