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Enhanced flame-retarding PET heat-shrinkable bush

A technology of heat-shrinkable sleeve and reinforcing agent, which is applied in the field of new materials, can solve problems such as single function and failure to meet the requirements of compounding, and achieve the effect of enhanced heat-shrinkable performance

Inactive Publication Date: 2017-09-15
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 raw materials according to the following ratio, PET slices 65 Parts by weight, 1 part by weight of a reinforcing agent, 1 part by weight of a flame retardant, and 1 part by weight of an antioxidant are added to a high-speed mixer and mixed uniformly; The strips are water-cooled, drawn and stretched, and pelletized by a pelletizer to obtain reinforced flame-retardant PET materials;

[0015] in,

[0016] Described strengthening agent is the mixture of nanometer barium sulfate and nanometer montmorillonite;

[0017] Described flame retardant is microcapsule red phosphorus;

[0018] The PET chips, reinforcing agent and flame retardant were pre-dried at 100° C. for 10 h.

Embodiment 2

[0020] The enhanced flame-retardant PET heat-shrinkable sleeve of the present invention is prepared from the enhanced flame-retardant PET material. 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 75 Parts by weight, 5 parts by weight of a reinforcing agent, 5 parts by weight of a flame retardant, and 3 parts by weight of an antioxidant are added to a high-speed mixer and mixed uniformly; The strips are water-cooled, drawn and stretched, and pelletized by a pelletizer to obtain reinforced flame-retardant PET materials;

[0021] in,

[0022] Described strengthening agent is the mixture of nanometer barium sulfate and nanometer montmorillonite;

[0023] Described flame retardant is microcapsule red phosphorus;

[0024] The PET chips, reinforcing agent and flame retardant were pre-dried at 100° C. for 10 h.

Embodiment 3

[0026] The enhanced flame-retardant PET heat-shrinkable sleeve of the present invention is prepared from the enhanced flame-retardant PET material. 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, 3 parts by weight of a reinforcing agent, 3 parts by weight of a flame retardant, and 2 parts by weight of an antioxidant are added to a high-speed mixer and mixed uniformly; The strips are water-cooled, drawn and stretched, and pelletized by a pelletizer to obtain reinforced flame-retardant PET materials;

[0027] in,

[0028] Described strengthening agent is the mixture of nanometer barium sulfate and nanometer montmorillonite;

[0029] Described flame retardant is microcapsule red phosphorus;

[0030] The PET chips, reinforcing agent and flame retardant were pre-dried at 100° C. for 10 h.

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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 65-75 parts by weight of slices, 1-5 parts by weight of reinforcing agent, 1-5 parts by weight of flame retardant, 1-3 parts by weight of antioxidant, add in a high-speed mixer and mix uniformly; send the compound into a twin-screw extruder Melt blending and extruding, the extruded strips are water-cooled, drawn and stretched, and pelletized by a pelletizer to obtain a reinforced flame-retardant PET material; wherein, the reinforcing agent is a mixture of nano-barium sulfate and nano-montmorillonite ; The flame retardant is microcapsule red phosphorus; the PET chips, reinforcing agent and flame retardant are pre-dried at 100° C. for 10 h. 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): C08L67/02C08K3/02C08K3/30C08K3/34
CPCC08K3/02C08K3/30C08K3/346C08K2003/026C08K2003/3045C08K2201/011C08L2201/02C08L2203/18C08L67/02
Inventor 葛建平
Owner NANTONG DINGSHANG ELECTRONICS MATERIAL CO LTD
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