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High-impact modified PET/PTT alloy based on glass fiber reinforcement

An impact modifier, high impact technology, applied in the field of high impact modified PET/PTT alloy, can solve the problems affecting the performance of PET/PTT alloy, low tracking resistance index, rough surface of parts and so on , to achieve the effect of easy industrial production and application, excellent anti-aging performance and good processability

Inactive Publication Date: 2015-08-19
QINGDAO JIAYIYANG IND & TRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the fact that PTT is easy to warp and deform when heated, and the tracking index (CTI) is low, the surface of the low-temperature molded part is rough, which will affect the performance of PET / PTT alloy

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A high-impact modified PET / PTT alloy based on glass fiber reinforcement. Its components are: PET 57%, PTT 20%, SMA 3%, glass fiber 8%, MBS 8%, light stable Agent 292 2%, nucleating agent 1%, antioxidant 1010 0.1%, TAF 0.9%, the glass fiber is an alkali-free chopped glass fiber with a diameter of 4-17 μm and a surface treated with a silane coupling agent, The nucleating agent is a composite of nano silicon dioxide, sodium benzoate and polyethylene glycol with a mass ratio of 3:1:1.

[0022] Preparation method: (1), dry PET and PTT in a forced air circulation oven at 110°C-120°C for 6-8 hours, and set aside; (2), weigh the dried PET and PTT according to the weight ratio and add In the high-speed mixer, add SMA, MBS, light stabilizer 292, nucleating agent, antioxidant 1010, and TAF at the same time according to the weight ratio, mix together for 3 to 15 minutes, and discharge after fully mixing; (3) . Add the output of step (2) to the main feed port of the twin-screw extr...

Embodiment 2

[0024] A high-impact modified PET / PTT alloy based on glass fiber reinforcement. Its components are: PET 40%, PTT 30%, SMA 5%, glass fiber 12%, ACR 10%, light stable Agent 944 1.5%, nucleating agent 1%, antioxidant 1010 and antioxidant 168 compound 0.1%, TAF 0.4%, the glass fiber has a diameter of 4-17 μm, and the surface is treated with a silane coupling agent The final alkali-free chopped glass fiber, the nucleating agent is a compound of nano-silica, sodium benzoate and polyethylene glycol with a mass ratio of 3:1:1.

[0025] Preparation method: (1), dry PET and PTT in a forced air circulation oven at 110°C-120°C for 6-8 hours, and set aside; (2), weigh the dried PET and PTT according to the weight ratio and add In the high-speed mixer, add SMA, ACR, light stabilizer 944, nucleating agent, the compound of antioxidant 1010 and antioxidant 168, and TAF at the same time according to the weight ratio, and mix together for 3 to 15 minutes. Discharge after mixing evenly; (3), add...

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Abstract

The invention discloses a high-impact modified PET / PTT alloy based on glass fiber reinforcement. The material comprises the following components by weight: 40% to 60% of PET, 20% to 30% of PTT, 2% to 5% of SMA, 8% to 12% of glass fiber, 5% to 10% of an impact modifier, 0.5% to 2% of a light stabilizer, 0.1% to 1% of a nucleating agent, 0.1% to 0.5% of an antioxidant and 0.1% to 1% of TAF, wherein the impact modifier is MBS or ACR. The invention has the following beneficial effects: the high-impact modified PET / PTT alloy based on the glass fiber reinforcement has respective original advantages of PET and PTT; meanwhile, the alloy has the advantages of good appearance, exellent chemical resistance, high strength, good impact performance, exellent aging resistance, good processing property, low cost, wide adaptability and easy industrial production and application.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a high-impact modified PET / PTT alloy based on glass fiber reinforcement. Background technique [0002] PET (polyethylene terephthalate) / PTT (polytrimethylene terephthalate) is a new type of plastic alloy, which has excellent molding processing, impact resistance, high temperature heat aging resistance, and chemical resistance. Performance, so it is widely used in automotive, electronic and electrical, fiber and other fields. However, due to the fact that PTT is easy to warp and deform when heated, and the tracking index (CTI) is low, the surface of the low-temperature molded part is rough, which will affect the performance of the PET / PTT alloy. Therefore, it is usually necessary to add a third component to the PET / PTT alloy to improve its performance. Contents of the invention [0003] The object of the present invention is to provide a high-impact modified PET / PTT ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L35/06C08L33/00C08L33/04C08L51/04C08L71/08C08K13/06C08K7/14C08K5/098C08K3/36C08K5/20C08K5/134C08J5/08B29C47/92B29C48/92
Inventor 不公告发明人
Owner QINGDAO JIAYIYANG IND & TRADE