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Halogen-free synergistic flame-retardant PBT material with high glow wire, and preparation method thereof

A synergistic flame-retardant and high-glow wire technology, applied in the field of polymer material modification, can solve the problems of high cost of organic hypophosphite, low product cost performance, poor compounding effect, etc., and achieve mechanical performance maintenance, physical mechanics Excellent performance and cost reduction effect

Inactive Publication Date: 2018-04-13
杭州立心新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages are: the cost of organic hypophosphite is too high, and the cost performance of the product is low; at the same time, in terms of improving the effect of PBT glow wire, the compounding effect of a single phosphorus flame retardant is not good

Method used

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  • Halogen-free synergistic flame-retardant PBT material with high glow wire, and preparation method thereof
  • Halogen-free synergistic flame-retardant PBT material with high glow wire, and preparation method thereof
  • Halogen-free synergistic flame-retardant PBT material with high glow wire, and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] In this embodiment, the halogen-free synergistic flame-retardant PBT material is composed of the following raw materials in parts by weight:

[0035]

[0036] The PBT resin is polybutylene terephthalate, and its intrinsic viscosity is 1.0dL / g; the glass fiber is an alkali-free glass fiber whose surface has been treated with a silane coupling agent, and the diameter of the glass fiber is 10 μm.

[0037] In this example, the phosphorus-based flame retardant is a mixture of solid phosphate oligomer and melamine polyphosphate, and its weight ratio is 1:1; the nitrogen-based flame retardant uses melamine; the silicon-based flame retardant uses polydimethyl base siloxane.

[0038] The toughening agent is a silicon-acrylic acid copolymer grafted with glycidyl methacrylate, and the antioxidant is a mixture of antioxidant 1010 and antioxidant 168 at a ratio of 1:1.

[0039] The preparation method of the halogen-free synergistic flame-retardant PBT material in this embodiment...

Embodiment 2

[0045] In this embodiment, the halogen-free synergistic flame-retardant PBT material is composed of the following raw materials in parts by weight:

[0046]

[0047] The PBT resin is polybutylene terephthalate with an intrinsic viscosity of 1.0dL / g; the glass fiber is an alkali-free glass fiber whose surface has been treated with a silane coupling agent.

[0048] In this example, the phosphorus-based flame retardant is a mixture of solid phosphate oligomer and melamine polyphosphate, and its weight ratio is 1:1; the nitrogen-based flame retardant uses melamine cyanurate; the silicon-based flame retardant Using polymethylphenylsiloxane.

[0049] The toughening agent is a silicon-acrylic acid copolymer grafted with glycidyl methacrylate, and the antioxidant is a mixture of antioxidant 1010 and antioxidant 168 at a ratio of 1:1.

[0050] The preparation method of the halogen-free synergistic flame-retardant PBT material in this embodiment is as follows:

[0051] (1) Put the ...

Embodiment 3

[0056] In this embodiment, the halogen-free synergistic flame-retardant PBT material is composed of the following raw materials in parts by weight:

[0057]

[0058] The PBT resin is polybutylene terephthalate with an intrinsic viscosity of 1.0dL / g; the glass fiber is an alkali-free glass fiber whose surface has been treated with a silane coupling agent.

[0059] In this example, the phosphorus-based flame retardant is a mixture of solid phosphate oligomer and melamine polyphosphate, and its weight ratio is 1:1; the nitrogen-based flame retardant uses polysilsesquioxane; the silicon-based flame retardant The agent adopts polymethylphenylsiloxane.

[0060] The toughening agent is a silicon-acrylic acid copolymer grafted with glycidyl methacrylate, and the antioxidant is a mixture of antioxidant 1010 and antioxidant 168 at a ratio of 1:1.

[0061] The preparation method of the halogen-free synergistic flame-retardant PBT material in this embodiment is as follows:

[0062] (...

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Abstract

The invention discloses a halogen-free synergistic flame-retardant PBT material with a high glow wire. The PBT material comprises, by weight, 30-60 parts of PBT resin, 10-30 parts of glass fibers, 10-25 parts of a phosphorus-based flame retardant, 2-10 parts of a nitrogen-based flame retardant, 0.2-1 part of a silicon-based flame retardant, 0.5-5 parts of a toughener and 0.2-0.6 part of an antioxidant. The invention also discloses a preparation method of the halogen-free synergistic flame-retardant PBT material. The synergistic effects of the flame retardants are fully used, so the flame retardant performance of prepared PBT material reaches UL94 V0 (1.6 mm), the glow-wire ignition temperature reaches 800 DEG C, and the PBT material has excellent physical and mechanical properties, and issuitable for being applied to electrical and electronic fields.

Description

technical field [0001] The invention relates to the field of polymer material modification, in particular to a halogen-free synergistic flame-retardant PBT material with high glow wire and a preparation method thereof. Background technique [0002] Polybutylene terephthalate (PBT) is a crystalline polyester with good heat resistance, chemical resistance, processability and electrical properties. It has been widely used in electronic and electrical industries in recent years. Applications. The field of electronic appliances requires that PBT materials must have good flame retardant properties, so the flame retardant modification of PBT is particularly important. Although traditional halogenated flame retardants have high flame retardant efficiency, they will release toxic gases when burned, endangering human health, and as environmental laws and regulations become more and more stringent, the Applications will be further restricted, and halogen-free environmentally friendly...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08L51/00C08L83/04C08K13/06C08K9/06C08K7/14C08K5/521C08K5/3492B29C47/92B29B9/06B29C48/92
CPCC08L67/02B29B9/06B29C48/92B29C2948/9258B29C2948/92704C08K2201/014C08L2201/02C08L2201/22C08L2205/025C08L2205/03C08L2205/035C08L51/003C08L83/04C08K13/06C08K9/06C08K7/14C08K5/521C08K5/34928C08K5/34922
Inventor 岑晓腾
Owner 杭州立心新材料有限公司
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