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Reinforced flame-retardant PET (polyethylene terephthalate) heat shrink tube

A heat-shrinkable sleeve and flame retardant technology, which is applied in the field of new materials, can solve the problems of single function and cannot meet the requirements of compounding, and achieve the effect of enhancing heat-shrinkage performance.

Inactive Publication Date: 2017-09-19
NANTONG DINGSHANG ELECTRONICS MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing PET heat-shrinkable sleeve has the following disadvantages: the function is single, and it cannot meet the composite requirements of the market

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The enhanced flame-retardant PET heat-shrinkable sleeve of the present invention is prepared from the enhanced flame-retardant PET material, and the enhanced flame-retardant PET material is prepared by the following method: prepare the raw materials according to the following ratio, PET slices 60 Parts by weight, 5 parts by weight of flame retardant, 2 parts by weight of antioxidant, 2 parts by weight of toughening agent, add in a high-speed mixer and mix evenly, then add glass fiber as a reinforcing agent; send the compound into a twin-screw extruder for Melt blending and extrusion, the extruded material is water-cooled, drawn and stretched, and pelletized by a pelletizer to obtain a reinforced flame-retardant PET material;

[0015] in,

[0016] The flame retardant is a compound of decabromodiphenyl ether and antimony trioxide;

[0017] Described toughening agent is ethylene-butyl acrylate-glycidyl methacrylate trisalt copolymer;

[0018] The PET chips were pre-dried...

Embodiment 2

[0020] The enhanced flame-retardant PET heat-shrinkable sleeve of the present invention is prepared from the enhanced flame-retardant PET material, and the enhanced flame-retardant PET material is prepared by the following method: prepare the raw materials according to the following ratio, and the PET slices are 70 Parts by weight, 10 parts by weight of flame retardant, 1 part by weight of antioxidant, 1 part by weight of toughening agent, add in a high-speed mixer and mix evenly, then add glass fiber as a reinforcing agent; send the mixture into a twin-screw extruder for Melt blending and extrusion, the extruded material is water-cooled, drawn and stretched, and pelletized by a pelletizer to obtain a reinforced flame-retardant PET material;

[0021] in,

[0022] The flame retardant is a compound of decabromodiphenyl ether and antimony trioxide;

[0023] Described toughening agent is ethylene-butyl acrylate-glycidyl methacrylate trisalt copolymer;

[0024] The PET chips were...

Embodiment 3

[0026] The enhanced flame-retardant PET heat-shrinkable sleeve of the present invention is prepared from the enhanced flame-retardant PET material, and the enhanced flame-retardant PET material is prepared by the following method: prepare the raw materials according to the following ratio, and the PET slices are 65 Parts by weight, 8 parts by weight of flame retardant, 3 parts by weight of antioxidant, 3 parts by weight of toughening agent, add in a high-speed mixer and mix evenly, then add glass fiber as a reinforcing agent; send the compound into a twin-screw extruder for Melt blending and extrusion, the extruded material is water-cooled, drawn and stretched, and pelletized by a pelletizer to obtain a reinforced flame-retardant PET material;

[0027] in,

[0028] The flame retardant is a compound of decabromodiphenyl ether and antimony trioxide;

[0029] Described toughening agent is ethylene-butyl acrylate-glycidyl methacrylate trisalt copolymer;

[0030] The PET chips we...

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PUM

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Abstract

The invention provides a flame-retardant PET heat-shrinkable sleeve, which is prepared from a reinforced flame-retardant PET material. The reinforced flame-resistant PET material is prepared by the following method: prepare raw materials according to the following ratio, PET 60-70 parts by weight of slices, 5-10 parts by weight of flame retardant, 1-3 parts by weight of antioxidant, 1-3 parts by weight of toughening agent, add in a high-speed mixer and mix uniformly, then add glass fiber as a reinforcing agent; The mixed material is sent into a twin-screw extruder for melt blending and extrusion, and the extruded material is water-cooled, drawn and stretched, and pelletized by a pelletizer to obtain a reinforced flame-retardant PET material; wherein the flame retardant is A compound of decabromodiphenyl ether and antimony trioxide; the toughening agent is ethylene-butyl acrylate-glycidyl methacrylate trisalt copolymer; the PET chips are pre-dried at 120°C 4h; the flame retardant and glass fiber are pre-dried at 120°C for 1h. The invention has the following technical effects: it has heat shrinkability and enhanced flame retardancy at the same time.

Description

technical field [0001] The invention relates to a reinforced flame-retardant PET heat-shrinkable sleeve, which belongs to the technical field of new materials. Background technique [0002] The heat-shrinkable sleeve has a special function of shrinking when heated, and it can shrink when heated above 98°C, which is convenient to use. The heat-shrinkable sleeve is a special polyolefin heat-shrinkable sleeve, also called EVA material. It is soft and elastic. It will shrink when heated (125 degrees), and is widely used in the insulation protection of various wire harnesses, solder joints, and inductors, and the rust and corrosion protection of metal pipes and rods. [0003] PET heat-shrinkable tubing (polyester heat-shrinkable tubing) greatly exceeds PVC heat-shrinkable tubing in terms of heat resistance, electrical insulation, and mechanical properties. More importantly, PET heat-shrinkable tubing is non-toxic and easy to recycle. The human body and the environment will not...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L23/08C08K13/04C08K7/14C08K3/22C08K5/06
CPCC08L67/02C08L2201/02C08L2203/18C08L23/0884C08K13/04C08K7/14C08K3/2279C08K5/06
Inventor 葛建平
Owner NANTONG DINGSHANG ELECTRONICS MATERIAL CO LTD
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