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Toughened modified PET/PTT alloy and preparation method thereof

A technology of toughening modification and alloying, applied in the field of toughening modified PET/PTT alloy and its preparation, can solve the problems of limited application effect and application field, unstable mechanical properties, low notched impact strength, etc., and achieves low cost , easy to popularize and apply, 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, unmodified PET / PTT has defects such as low notched impact strength, high notch sensitivity, and unstable mechanical properties, 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

[0021] A toughening modified PET / PTT alloy, the components of which are proportioned by mass percentage as follows: PET 40%, PTT 30%, ethylene-ethyl acrylate-glycidyl methacrylate triblock copolymer 4%, carbonic acid 15% of calcium particles, 0.3% of aluminum-titanium composite coupling agent, 10% of ethylene-octene copolymer grafted maleic anhydride, 0.2% of nucleating agent, 0.1% of antioxidant 1010, 0.4% of calcium stearate, said The calcium carbonate particles are heavy calcium carbonate powders with a particle size of less than 5 μm, and the nucleating agent is a compound of nano-silicon dioxide and sodium benzoate with a mass ratio of 1:1.

[0022] Preparation method: (1), dry PET and PTT in a forced air circulation oven at a temperature of 110 to 120 °C for 6 to 8 hours, and dry the calcium carbonate particles at a temperature of 80 to 120 °C for 30 to 45 minutes, and set aside for use (2) Weigh the dried calcium carbonate particles by weight and add them into a high-sp...

Embodiment 2

[0024] A toughening modified PET / PTT alloy, the components of which are proportioned by mass percentage as follows: PET 60%, PTT 20%, ethylene-ethyl acrylate-glycidyl methacrylate triblock copolymer 3%, carbonic acid 3% 10% calcium particles, 0.2% aluminum-titanium composite coupling agent, 5% styrene-ethylene-butylene-styrene block copolymer grafted maleic anhydride, 0.5% nucleating agent, antioxidant 1076 and antioxidant 168 compound 0.3%, silicone powder 1%, the calcium carbonate particles are heavy calcium carbonate powder with a particle size of less than 5 μm, and the nucleating agent is nano-silicon dioxide and benzene with a mass ratio of 1:1 Sodium formate complex.

[0025] Preparation method: (1), dry PET and PTT in a forced air circulation oven at a temperature of 110 to 120 °C for 6 to 8 hours, and dry the calcium carbonate particles at a temperature of 80 to 120 °C for 30 to 45 minutes, and set aside for use (2) Weigh the dried calcium carbonate particles by weig...

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Abstract

The invention discloses a toughened modified PET / PTT alloy and a preparation method thereof. The toughened modified PTT / PET alloy provided by the invention comprises the following components by weight: 40% to 70% of PET, 20% to 30% of PTT, 2% ~ 4% of a compatibilizing agent, 5% to 15% of calcium carbonate particles, 0.1% to 0.5% of an composite aluminum-titanium coupling agent , 5% to 10% of polymer elastomer graft, 0.1% to 0.5% of a nucleating agent, 0.1% to 0.5% of an antioxidant and 0.1% to 1% of a lubricant. The invention has the following beneficial effects: the toughened modified PET / PTT alloy has respective original advantages of PET and PTT, greatly improves notch impact strength, rigidity, heat resistance, etc., and has good processing property, low cost and easy popularization and application.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a toughened modified PET / PTT alloy and a preparation method thereof. Background technique [0002] PET (polyethylene terephthalate) / PTT (polypropylene terephthalate) is a new type of plastic alloy with excellent molding process, impact resistance, high temperature heat aging resistance, chemical resistance, etc. Therefore, it is widely used in automobile, electronic and electrical, fiber and other fields. However, unmodified PET / PTT has defects such as low notch impact strength, high notch sensitivity, and unstable mechanical properties, which will greatly limit its application effect and application field. SUMMARY OF THE INVENTION [0003] The purpose of the present invention is to provide a toughened modified PET / PTT alloy with good mechanical properties and low cost and a preparation method thereof. [0004] The technical scheme adopted by the present invention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L51/06C08L51/00C08K13/06C08K9/00C08K3/26B29B9/06B29C47/92B29C48/92
Inventor 不公告发明人
Owner QINGDAO JIAYIYANG IND & TRADE
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