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Flame retardant PET/PTT alloy and preparation method thereof

A flame-retardant, PTT20% technology, applied in the field of flame-retardant PET/PTT alloy and its preparation, can solve the problems of poor flame retardancy of PET/PTT, which cannot be well suited for high flame-retardant application fields, etc. , to achieve the effect of strong chemical resistance, low warpage and low cost

Inactive Publication Date: 2015-08-19
王妮娜
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the flame retardancy of PET / PTT itself is not good, and it is not suitable for high flame-retardant applications. Therefore, it is necessary to modify the flame-retardant properties of PET / PTT to improve the performance of PET / PTT and enhance its Application effects in various fields

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A kind of flame-retardant PET / PTT alloy, its composition ratio by mass percentage is: PET 20%, PTT 40%, ethylene-ethyl acrylate-glycidyl methacrylate triblock copolymer 4%, glass fiber 12%, decabromodiphenylethane 10%, antimony trioxide 4%, plasticizer 8%, nucleating agent 1%, antioxidant 1076 and antioxidant 168 compound 0.5%, pentaerythritol stearin Ester 0.5%, the glass fiber is an alkali-free glass fiber with a diameter of 8-17 μm, a length of 3-6 mm, and an aspect ratio of 7-9 after the surface is treated with a silane coupling agent. The plasticizer is A compound of thermoplastic polyether ester TPEE and polyisobutylene adipate with a mass ratio of 4:1, and the nucleating agent is a compound of nano silicon dioxide and sodium benzoate at a mass ratio of 4:1.

[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 mixin...

Embodiment 2

[0025] A flame-retardant PET / PTT alloy, the composition of which is: PET 56%, PTT 20%, ethylene-ethyl acrylate-glycidyl methacrylate triblock copolymer 2%, glass fiber 8%, polyphenylsulfone diphenylphosphonate 6%, antimony pentoxide 2%, plasticizer 5%, nucleating agent 0.5%, antioxidant 1010 0.1%, modified ethylene bis stearamide 0.4 %, the glass fiber is an alkali-free glass fiber with a surface treated with a silane coupling agent, a diameter of 8-17 μm, a length of 3-6 mm, and an aspect ratio of 7-9. The plasticizer is a mass ratio of 4 : 1 compound of thermoplastic polyether ester TPEE and polyisobutylene adipate, the nucleating agent is a compound of nano silicon dioxide and sodium benzoate with a mass ratio of 4:1.

[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 polyphenylsulfone diphenyl...

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Abstract

The invention discloses a flame retardant PET / PTT alloy, which comprises the following components by mass: 20%-56% of PET, 20%-40% of PTT, 2%-4% of a compatilizer, 8%-12% of glass fiber, 6%-10% of a flame retardant, 2%-4% of a flame retardant synergistic agent, 5%-8% of a plasticizer, 0.1%-1% of a nucleating agent, 0.1%-0.5% of an antioxidant, and 0.1%-1% of a lubricant. The plasticizer is a compound of thermoplastic polyether ester TPEE and polyadipic acid isobutyl diester in a mass ratio of 4:1, and the nucleating agent is a compound of nano-silica and sodium benzoate in a mass ratio of 4:1. The flame retardant PET / PTT alloy provided by the invention integrates the respective advantages of PET and PTT, also has the characteristics of excellent flame retardance and heat resistant stability, good mechanical properties, strong chemical resistance, low warpage, high gloss, low cost, simple preparation process and wide adaptability.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a flame-retardant PET / PTT alloy and a preparation method thereof. Background technique [0002] Polyethylene terephthalate (PET) / polytrimethylene terephthalate (PTT) belongs to a new type of plastic alloy, which has excellent molding processing, impact resistance, high temperature heat aging resistance, chemical resistance, etc. Performance, and low cost, so it will have broad application prospects in the fields of automobiles, electronics, fibers, etc. However, the flame retardancy of PET / PTT itself is not good, and it is not suitable for high flame-retardant applications. Therefore, it is necessary to modify the flame-retardant properties of PET / PTT to improve the performance of PET / PTT and enhance its Application effects in various fields. Contents of the invention [0003] The object of the present invention is to provide a flame-retardant PET / PTT alloy with goo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L53/00C08L67/00C08L85/02C08K13/06C08K9/06C08K7/14C08K5/03C08K3/22C08K5/134C08K5/526C08K3/36C08K5/098C08J3/22
Inventor 不公告发明人
Owner 王妮娜
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