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Flame retardant enhanced PBT material and preparation method thereof

A technology of compounding flame retardants and raw materials, which is applied in the field of materials, can solve the problems of low heat distortion temperature, low mechanical strength, and poor flame retardancy, and achieve the effects of high cost performance, good toughness, and high strength

Inactive Publication Date: 2018-10-09
浙江希卡姆复合材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, pure PBT resin also has disadvantages such as poor flame retardancy (only up to UL-94HB level), low mechanical strength, low notched impact strength, and low heat distortion temperature, which limit its application in certain fields.

Method used

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  • Flame retardant enhanced PBT material and preparation method thereof
  • Flame retardant enhanced PBT material and preparation method thereof
  • Flame retardant enhanced PBT material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A kind of flame-retardant reinforced PBT material, is made up of the raw material of following percentage by weight:

[0020]

[0021] Above-mentioned PBT is polyethylene terephthalate resin, and its intrinsic viscosity is 1.0dL / g;

[0022] The compound flame retardant mentioned above is the compound polyphosphate melamine salt of Swiss Clariant inorganic hypophosphite OP1314;

[0023] The above-mentioned glass fibers are alkali-free glass fibers, the surface of which is treated with a silane coupling agent, and the diameter of the single filament is 11 microns;

[0024] The above-mentioned toughening agent is ethylene methyl acrylate grafted glycidyl methacrylate;

[0025] Above-mentioned antioxidant is hindered phenolic antioxidant 1010;

[0026] Above-mentioned lubricant is the maleic anhydride grafted LDPE of ultra-low molecular weight;

[0027] Prepared by the following method:

[0028] 1. Processing and mixing of raw materials: PBT resin is baked at 120°C f...

Embodiment 2

[0032] A kind of flame-retardant reinforced PBT material, is made up of the raw material of following percentage by weight:

[0033]

[0034] Above-mentioned PBT is polyethylene terephthalate resin, and its intrinsic viscosity is 1.0dL / g;

[0035] The compound flame retardant mentioned above is the compound polyphosphate melamine salt of Swiss Clariant inorganic hypophosphite OP1314;

[0036] The above-mentioned glass fibers are alkali-free glass fibers, the surface of which is treated with a silane coupling agent, and the diameter of the single filament is 11 microns;

[0037] The above-mentioned toughening agent is ethylene methyl acrylate grafted glycidyl methacrylate;

[0038] Above-mentioned antioxidant is hindered phenolic antioxidant 1010;

[0039] Above-mentioned lubricant is the maleic anhydride grafted LDPE of ultra-low molecular weight;

[0040] Prepared by the following method:

[0041] 1. Processing and mixing of raw materials: PBT resin is baked at 120°C f...

Embodiment 3

[0045] A kind of flame-retardant reinforced PBT material, is made up of the raw material of following percentage by weight:

[0046]

[0047]

[0048] Above-mentioned PBT is polyethylene terephthalate resin, and its intrinsic viscosity is 1.0dL / g;

[0049] The compound flame retardant mentioned above is the compound polyphosphate melamine salt of Swiss Clariant inorganic hypophosphite OP1314;

[0050] The above-mentioned glass fibers are alkali-free glass fibers, the surface of which is treated with a silane coupling agent, and the diameter of the single filament is 11 microns;

[0051] The above-mentioned toughening agent is ethylene methyl acrylate grafted glycidyl methacrylate;

[0052] Above-mentioned antioxidant is phosphite antioxidant 168;

[0053] Above-mentioned lubricant is the maleic anhydride grafted LDPE of ultra-low molecular weight;

[0054] Prepared by the following method:

[0055] 1. Processing and mixing of raw materials: PBT resin is baked at 120°...

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Abstract

The invention belongs to the technical field of materials, and particularly relates to a composite material and a preparation method thereof. A designed flame retardant enhanced PBT material is prepared from the following raw materials in percentage by weight: 30 to 50 percent of PBT, 10 to 15 percent of brominated flame retardants, 10 to 15 percent of compound flame retardants, 13 to 40 percent of glass fiber, 2 to 6 percent of toughening agents, 0.2 to 0.8 percent of antioxidants and 0.3 to 0.8 percent of lubricating agents. The 750-DEG C glowing filament in the European Union IEC60695 standard is raised to 850 DEG C extinguishment in 2 seconds by the flame retardant enhanced PBT material provided by the invention; the gradually increased requirements of customers on 750-DEG C glowing filaments can be met; meanwhile, the advantages of high intensity, high toughness, fast shaping capability, high cost performance and the like are realized; the requirements of electronic and electric appliance and home-use electric appliance products such as microswitches, connector assemblies and fuses can be met.

Description

technical field [0001] The invention belongs to the technical field of materials, and in particular relates to a composite material and a preparation method thereof. Background technique [0002] Polybutylene terephthalate (PBT) is a crystalline, linear saturated polyester. It has the characteristics of excellent mechanical properties, electrical properties, chemical corrosion resistance, easy molding and low moisture absorption rate. It is a thermoplastic engineering plastic with excellent comprehensive properties. Parts with high strength requirements and heat-resistant, impact-resistant, and abrasion-resistant parts have become an important member of the five major engineering plastics. However, pure PBT resin also has disadvantages such as poor flame retardancy (only up to UL-94HB level), low mechanical strength, low notched impact strength, and low heat distortion temperature, which limit its application in certain fields. Therefore, at present, about 80% of PBT are m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08K3/32C08K5/134C08K5/526C08J5/08
CPCC08J5/08C08J2367/02C08K3/32C08K5/1345C08K5/526
Inventor 王洪祥叶志鹏韩文广
Owner 浙江希卡姆复合材料股份有限公司
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