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PET and PTT blend alloy and preparation method thereof

A technology of mixing gold and light stabilizer, which is applied in the field of PET and PTT blended alloy and its preparation, can solve the problems of poor toughness, unstable mechanical strength, limited application effect and application field, etc., and achieve good aging resistance and convenient The effect of popularization and application and low cost

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, the blending of PET and PTT has the problems of poor toughness and unstable mechanical strength, which will greatly limit its application effect and application field

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A blended alloy of PET and PTT, whose components are proportioned by mass percentage: PET 40%, PTT 30%, SMA 4%, glass fiber 8%, modified calcium carbonate 10%, POE 5%, light stabilizer 2%, nano silicon dioxide 0.5%, antioxidant 1010 0.1%, TAF 0.4%, described glass fiber is the alkali-free chopped glass fiber that the surface is processed through silane coupling agent, and described modified calcium carbonate particle is The surface is treated with aluminum-titanium composite coupling agent, and the particle size is 10-80nm heavy calcium carbonate nanoparticles. The light stabilizer is hindered amine high molecular weight light stabilizer GW-944Z and GW with a mass ratio of 1:1 A compound of -622.

[0023] 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 dry PTT according to the weight ratio and add it to high-speed mixing In the container, add modified calcium carbonate, POE, light stabi...

Embodiment 2

[0025] A blended alloy of PET and PTT, whose components are proportioned by mass percentage: PET 46%, PTT 15%, SMA 2%, glass fiber 12%, modified calcium carbonate 15%, POE 8%, light stabilizer 1%, ethylene-sodium methacrylate ionomer 0.5%, the compound of antioxidant 1076 and antioxidant 168 0.1%, TAF 0.4%. Alkali-chopped glass fibers, the modified calcium carbonate particles are heavy calcium carbonate nanoparticles whose surface is treated with an aluminum-titanium composite coupling agent and whose particle size is 10-80nm, and the light stabilizer has a mass ratio of 1:1 The compound of hindered amine high molecular weight light stabilizer GW-944Z and GW-622.

[0026] 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 dry PTT according to the weight ratio and add it to high-speed mixing In the container, add modified calcium carbonate, POE, light stabilizer, antioxidant 1076 and antioxidant 1...

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PUM

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Abstract

The invention discloses a PET and PTT blend alloy and a preparation method thereof. The blend alloy comprises the components of, by mass, 40-50% of PET, 15-30% of PTT, 2-4% of SMA, 8-12% of glass fiber, 5-15% of modified calcium carbonate, 5-8% of POE, 0.5-2% of a light stabilizer, 0.1-0.5% of a nucleating agent, 0.1-0.5% of an antioxidant, and 0.1-1% of TAF. The modified calcium carbonate particles are heavy calcium carbonate nanoparticles with surfaces processed with an aluminum-titanium composite coupling agent and with particle sizes of 10-80nm. According to the invention, the alloy has the original advantages of PET and PTT, and has improved strength, rigidity, heat resistance, impact resistance and the like. The material also has the advantages of good aging resistance, low cost and wide applicability.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a blended alloy of PET and PTT and a preparation method thereof. Background technique [0002] Polyethylene terephthalate (PET) is a crystalline polymer with high melting temperature and glass transition temperature, which maintains excellent physical and mechanical properties in a certain temperature range, and its fatigue resistance , friction resistance, aging resistance, and electrical insulation are extremely prominent, relatively stable to most organic solvents and acids, and have low production energy consumption, so they are widely used in the fields of synthetic fibers, films, and engineering plastics; but because PET Strong rigidity leads to poor toughness of the material, slow crystallization speed, high mold temperature and long molding cycle, etc., which greatly limit its application range. Polytrimethylene terephthalate (PTT) is a crystalline polymer with...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08L35/06C08L23/08C08K13/06C08K9/06C08K9/04C08K7/14C08K3/26C08K3/36C08K5/134C08K5/526
Inventor 不公告发明人
Owner QINGDAO JIAYIYANG IND & TRADE