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Flame-retardant reinforced warping-resistance PBT/PTT (polybutylene terephthalate/polytrimethylene terephthalate) alloy material and preparation method thereof

An alloy material and warping technology, applied in the field of polymer composite materials, can solve the problems that affect the performance of PBT/PTT alloy materials, PTT is easily warped when heated, and has a low tracking resistance index, and achieves high flame retardancy. high CTI value, smooth surface without warping, good mechanical properties

Active Publication Date: 2012-07-04
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, PTT is easy to warp and deform when heated, and the surface of the low-temperature molded part is rough and has more floating fibers, and the tracking index (CTI) is lower than that of the PBT / PTT alloy material, which affects the performance of the PBT / PTT alloy material

Method used

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  • Flame-retardant reinforced warping-resistance PBT/PTT (polybutylene terephthalate/polytrimethylene terephthalate) alloy material and preparation method thereof
  • Flame-retardant reinforced warping-resistance PBT/PTT (polybutylene terephthalate/polytrimethylene terephthalate) alloy material and preparation method thereof
  • Flame-retardant reinforced warping-resistance PBT/PTT (polybutylene terephthalate/polytrimethylene terephthalate) alloy material and preparation method thereof

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Experimental program
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Effect test

Embodiment 6

[0042] A method for preparing a flame-retardant reinforced warpage-resistant PBT / PTT alloy material, comprising the following steps:

[0043] PBT and PTT were air-dried at 130°C for 3 hours, the intrinsic viscosity of PBT was 0.7dL / g, and the density was 1.30g / cm 3 , the viscosity of PTT is 0.7dL / g, and the density is 1.33g / cm 3 ; Take by weight proportion dry good PBT30 weight portion, PTT30 weight portion, lubricant silicone oil 0.3 weight portion, transesterification inhibitor triphenyl phosphite 0.1 weight portion, antioxidant 1010 0.3 weight portion, nucleating agent surlyn 8920 0.5 parts by weight, 5 parts by weight of flame retardant decabromodiphenyl ether, 1 part by weight of flame retardant synergist sodium antimonate, 2 parts by weight of toughening agent AX89002, mica powder ( The particle size is 800 mesh) and 10 parts by weight are uniformly mixed in a high-speed mixer; the uniformly mixed material is blended with 5 parts by weight of alkali-free glass fibers co...

Embodiment 7

[0045] A method for preparing a flame-retardant reinforced warpage-resistant PBT / PTT alloy material, comprising the following steps:

[0046] PBT and PTT were air-dried at 130°C for 3 hours, the intrinsic viscosity of PBT was 1.3dL / g, and the density was 1.35g / cm 3 , the viscosity of PTT is 1.0dL / g, and the density is 1.37g / cm 3 ; Take dry PBT40 weight part, PTT10 weight part, lubricant white wax oil 1 weight part, transesterification inhibitor disodium hydrogen phosphate 0.8 weight part, antioxidant 1680.8 weight part, nucleating agent Aclyn 2855 by weight proportion Parts by weight, 10 parts by weight of flame retardant brominated epoxy resin, 5 parts by weight of antimony oxide of flame retardant synergist, 10 parts by weight of toughening agent AX8900, the mica powder (particle size is 600 orders) that carries out surface treatment through silane coupling agent ) 30 parts by weight are uniformly mixed in a high-speed mixer; the homogeneously mixed material is blended with...

Embodiment 8

[0048] A method for preparing a flame-retardant reinforced warpage-resistant PBT / PTT alloy material, comprising the following steps:

[0049] PBT and PTT were air-dried at 130°C for 3 hours, the intrinsic viscosity of PBT was 1.2dL / g, and the density was 1.31g / cm 3 , the viscosity of PTT is 0.8dL / g, and the density is 1.36g / cm 3; Weigh dry PBT32 parts by weight, PTT22 parts by weight, lubricant silicone oil 0.3 parts by weight, white wax oil 0.2 parts by weight, transesterification inhibitor triphenyl phosphite 0.2 parts by weight, disodium hydrogen phosphate 0.2 parts by weight parts, 10100.2 parts by weight of antioxidant, 1680.3 parts by weight of antioxidant, 2.5 parts by weight of ionomer nucleating agent, 5 parts by weight of flame retardant decabromodiphenyl ether, 3 parts by weight of brominated epoxy resin, flame retardant association 1 part by weight of antimony antimonate, 1 part by weight of antimony oxide, 7 parts by weight of toughening agent AX8900, 22 parts by...

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Abstract

The invention discloses a flame-retardant reinforced warping-resistance PBT / PTT (polybutylene terephthalate / polytrimethylene terephthalate) alloy material, which comprises the following components in parts by weight: 30-40 parts of PBT, 10-30 parts of PTT, 0.3-1 part of lubricating agent, 0.1-0.8 part of ester exchange inhibitor, 0.3-0.8 part of antioxidant, 0.5-5 parts of nucleating agent, 5-10 parts of flame retardant, 1-5 parts of flame-retardant synergist, 2-10 parts of toughening agent, 0-30 parts of glass fiber and 10-30 parts of mineral powder. According to the invention, the PBT and the PTT are blended to be made into the alloy material, and the flame-retardant reinforced warping-resistance PBT / PTT alloy material has the advantage of low cost, solves the problem that high fire resistance and high CTI (comparative tracking index) value as well as high mechanical property of the PBT / PTT alloy material are difficult to coexist and has the characteristics of strong warping resistance and heat resistance. The flame-retardant reinforced warping-resistance PBT / PTT alloy material has good mechanical property, high flame retardance and high CTI value; and a product made of the flame-retardant reinforced warping-resistance PBT / PTT alloy material is smooth in smooth and free of warping.

Description

technical field [0001] The invention relates to a polymer composite material, in particular to a flame-retardant enhanced warpage-resistant PBT / PTT alloy material and a preparation method thereof. Background technique [0002] Polyethylene terephthalate (PBT) is one of the toughest engineering thermoplastics. It is a semi-crystalline material with very good chemical stability, mechanical strength, electrical insulation properties and thermal stability. Polytrimethylene terephthalate (PTT) is an extremely A promising new polyester polymer material with good mechanical properties, good elasticity, wear resistance, insulation, and low water absorption. Moreover, due to the breakthrough in the industrial synthesis method of 1,3-propanediol, the raw material for synthesizing PTT in recent years, the large-scale production of PTT has low cost and has a price advantage. The crystallization speed of PTT melt is higher than that of PET, adding PTT to PBT, the forming efficiency exc...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08K13/06C08K9/06C08K7/14C08K9/04C08K3/34C08K5/526C08K3/32B29B9/06B29C47/92B29C48/92
CPCB29C48/04B29C48/92B29C2948/92704B29C2948/92895
Inventor 费彬
Owner HEFEI GENIUS NEW MATERIALS
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