Flame-retardant PET packing belt material and preparation method thereof

A technology of packing tape and flame retardant, which is applied in the field of flame retardant PET packing tape material and its preparation, can solve the problem of poor long-term aging resistance and hydrolysis resistance, failure of PET material, and poor flame retardant performance and insulation performance of PET material. and other problems, to achieve the effect of improving long-term aging resistance and hydrolysis resistance, excellent tensile strength, flame retardant performance and excellent electrical insulation performance

Inactive Publication Date: 2020-04-21
上海聚威新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With the wide application of PET materials and the rapid development of new energy vehicles, more and more parts choose to use PET materials. Due to the application requirements of new energy vehicle batteries, PET materials with excellent chemical resistance are used For packing tape products of automobile batteries, due to the poor flame retardant and insulating properties of PET materials, this limits the application of PET in new energy batteries. At the same time, due to the molecular structure of PET materials, the durability of PET materials The cycle aging performance and hydrolysis resistance are poor, and there is a risk of failure in actual use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A flame-retardant PET strapping material, comprising the following raw materials in percentage by weight: 75% of PET resin, 20% of flame retardant, 2% of antioxidant, 2% of polytetrafluoroethylene coated with acrylonitrile-styrene, stearin Zinc acid 0.5%, carbodiimide 0.5%;

[0030] Wherein the viscosity of PET resin is 1.2dl / gr.

[0031] The flame retardant is a mixture of decabromodiphenylethane, brominated polystyrene, zinc borate, and antimony trioxide, and the weight ratio is 8:3:2:3.

[0032] The antioxidant is a mixture of hindered phenol 1076, phosphite 168, and thioester 412S, and the weight ratio is 2:3:2.

[0033] The preparation of the above-mentioned flame-retardant PET packing tape material specifically includes:

[0034] (1) Mixing: Dry the above raw materials and mix them. After mixing, use a twin-screw feeder to continuously and evenly add the mixture to the main cylinder of a twin-screw extruder (screw diameter 35mm, length-to-diameter ratio L / D=36) ...

Embodiment 2

[0037] A flame-retardant PET strapping material, comprising the following raw materials in percentage by weight: 75% of PET resin, 20% of flame retardant, 2% of antioxidant, 2% of polytetrafluoroethylene coated with acrylonitrile-styrene, stearin Zinc acid 0.5%, carbodiimide 0.5%;

[0038] Wherein the viscosity of PET resin is 1.2dl / gr.

[0039] The flame retardant is a mixture of decabromodiphenylethane, brominated polystyrene, zinc borate, and antimony trioxide, and the weight ratio is 6:2:1:3.

[0040] The antioxidant is a mixture of hindered phenol 1076, phosphite 168, and thioester 412S, and the weight ratio is 1.5:2:1.5.

[0041] The preparation of the above-mentioned flame-retardant PET packing tape material specifically includes:

[0042] (1) Mixing: Dry the above raw materials and mix them. After mixing, use a twin-screw feeder to continuously and evenly add the mixture to the main cylinder of a twin-screw extruder (screw diameter 35mm, length-to-diameter ratio L / D=...

Embodiment 3

[0045]A flame-retardant PET strapping material, comprising the following raw materials in percentage by weight: 75% of PET resin, 20% of flame retardant, 2% of antioxidant, 2% of polytetrafluoroethylene coated with acrylonitrile-styrene, stearin Zinc acid 0.5%, carbodiimide 0.5%;

[0046] Wherein the viscosity of PET resin is 1.2dl / gr.

[0047] The flame retardant is a mixture of decabromodiphenylethane, brominated polystyrene, zinc borate, and antimony trioxide, and the weight ratio is 8:3:2:4.

[0048] The antioxidant is a mixture of hindered phenol 1076, phosphite 168, and thioester 412S, and the weight ratio is 2:3:2.

[0049] The preparation of the above-mentioned flame-retardant PET packing tape material specifically includes:

[0050] (1) Mixing: Dry the above raw materials and mix them. After mixing, use a twin-screw feeder to continuously and evenly add the mixture to the main cylinder of a twin-screw extruder (screw diameter 35mm, length-to-diameter ratio L / D=36) ...

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Abstract

The invention discloses a flame-retardant PET packing belt material and a preparation method thereof. The flame-retardant PET packing belt material comprises the following raw materials (by weight): 75-85% of PET resin, 10-20% of a flame retardant, 0.3-2% of an antioxidant, 0.01-2% of a tackifier, 0.01-0.5% of a lubricant and 0.01-0.5% of a hydrolysis-resistant agent. According to the invention, the flame retardant is preferably selected, so that the flame retardant property of the PET material can be greatly improved to reach the UL94V0 grade while higher electrical insulation property is obtained. In addition, the preferable antioxidant additive combination and the hydrolysis-resistant agent are added, so that the long-acting aging resistance and hydrolysis resistance of the material areimproved. Finally, through a large number of experiments, the flame-retardant PET packing belt material for the automobile battery and having excellent flame retardance and electrical insulation property, long-acting aging resistance and excellent tensile strength is obtained, the quality of the material is improved, and the application range of the material is widened.

Description

technical field [0001] The invention relates to the technical field of modified new materials, in particular to a flame-retardant PET packing tape material and a preparation method thereof. Background technique [0002] PET (ethylene terephthalate) material has a highly symmetrical molecular structure, has a certain crystal orientation ability, and has high film-forming properties. PET plastics have good friction resistance, low wear, high hardness, and electrical insulation. Good, good chemical stability, creep resistance, fatigue resistance, toughness and dimensional stability. Applicable to the electrical and electronic and automotive industries, used for various coil bobbins, transformers, TV sets, tape recorder parts and casings, automotive lamp holders, lampshades, incandescent lamp holders, relays, selenium rectifiers, etc. [0003] With the wide application of PET materials and the rapid development of new energy vehicles, more and more parts choose to use PET mater...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L25/06C08L27/18C08K5/03C08K3/38C08K3/22C08K5/134C08K5/526C08K5/29C08K13/02
CPCC08K2003/387C08L67/02C08L2201/02C08L2201/08C08L2205/035C08L25/06C08L27/18C08K5/03C08K3/38C08K3/2279C08K5/1345C08K5/526C08K5/29C08K13/02
Inventor 王晶张天荣王帅孔壮志王明义刘建平
Owner 上海聚威新材料股份有限公司
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