Polybutylene terephthalate and polyhexamethylene adipamide fibre-added fire-retardant alloy and preparation method thereof

A technology of polybutylene terephthalate and polyhexamethylene adipate, which is applied to polybutylene terephthalate and polyhexamethylene adipate fiber-added flame-retardant alloy and its preparation In this field, it can solve the problems of high material cost, difficult processing and molding, and easy floating fiber of the product, and achieve the effect of simple molding process, easy processing and molding, and good product surface

Inactive Publication Date: 2008-01-09
SHENZHEN KEJU NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the problems of high cost of existing materials, difficulty in processing and forming, and easy floating fibers on the product surface, and provide a product

Method used

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  • Polybutylene terephthalate and polyhexamethylene adipamide fibre-added fire-retardant alloy and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0033] Example 1

[0034] According to weight percentage, PBT 15%, polyhexamethylene adipate 32.55%, brominated flame retardant (decabromodiphenylethane) 1 4%, Sb 2 o 3 4.6%, lubricant (zinc stearate) 0.15%, antioxidant (triethylene glycol bis-3-(3-tert-butyl-4-hydroxy-5-methylphenyl) acrylonitrile and three (2,4 -Di-tert-butylphenol) phosphite (mixed 1:1) 0.2%, plasticizer (maleic anhydride grafted ethylene-octene copolymer POE-g-MAH) 3%, phase solvent (Y-aminopropyl Triethoxysilane) 0.5% was pre-mixed in a mixing tank for 6 minutes, and then granulated by twin-screw extrusion, and 30% of long glass fibers were added at the same time. The processing technology is 235-260℃ in the first zone, 240-260℃ in the second zone, 240-265℃ in the third zone, 240-265℃ in the fourth zone, 235-265℃ in the fifth zone, 235-260℃ in the sixth zone, and 230-230 in the seventh zone. 250°C.

Example Embodiment

[0035] Example 2

[0036] According to weight percentage, PBT 20%, polyhexamethylene adipate 27.55%, brominated flame retardant (decabromodiphenylethane) 14%, Sb 2 o 3 4.6%, lubricant (zinc stearate) 0.15%, antioxidant (triethylene glycol bis-3-(3-tert-butyl-4-hydroxy-5-methylphenyl) acrylonitrile and three (2,4 -Di-tert-butylphenol) phosphite (mixed 1:1) 0.2%, plasticizer (maleic anhydride grafted ethylene-octene copolymer POE-g-MAH) 3%, phase solvent (Y-aminopropyl Triethoxysilane) 0.5% was pre-mixed in a mixing tank for 6 minutes, and then granulated by twin-screw extrusion, and 30% of long glass fibers were added at the same time. The processing technology is 235-260℃ in the first zone, 240-260℃ in the second zone, 240-265℃ in the third zone, 240-265℃ in the fourth zone, 235-265℃ in the fifth zone, 235-260℃ in the sixth zone, and 230-230 in the seventh zone. 250°C.

Example Embodiment

[0037] Example 3

[0038] According to weight percentage, PBT20%, polyhexamethylene adipate 25.05%, brominated flame retardant (decabromodiphenylethane) 14%, Sb 2 o 34.6%, lubricant (zinc stearate) 0.15%, antioxidant (triethylene glycol bis-3-(3-tert-butyl-4-hydroxy-5-methylphenyl) acrylonitrile and three (2,4 -Di-tert-butylphenol) phosphite (mixed 1:1) 0.2%, plasticizer (maleic anhydride grafted ethylene-octene copolymer POE-g-MAH) 3%, phase solvent (Y-aminopropyl Triethoxysilane) 1.0% was pre-mixed in a mixing tank for 6 minutes, and then granulated by twin-screw extrusion, and 32% of long glass fibers were added at the same time. The processing technology is 235-260℃ in the first zone, 240-260℃ in the second zone, 240-265℃ in the third zone, 240-265℃ in the fourth zone, 235-265℃ in the fifth zone, 235-260℃ in the sixth zone, and 230-230 in the seventh zone. 250°C.

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Abstract

A fiber fire-retardant alloy of polybutylene terephthalate and polydecamethylene diamine and its production are disclosed. It consists of polybutylene terephthalate 15-25 wt%, polydecamethylene diamine 22.55-32.55 wt%, bromine fire retardant 12-16 wt%, antimonous oxide 4.0-5.4 wt%, long glass fiber 28-32 wt%, lubricant 0.1-0.2 wt%, antioxidant 0.1-0.3 wt% and plasticizer 3-5 wt%. It costs low, has excellent rigidity, toughness and heat resistance. It can be used for heat-resisting electrical appliance piece, IC slot, connector and work-piece of vehicles.

Description

technical field [0001] The invention relates to a polybutylene terephthalate and polyhexamethylene adipate fiber-added flame-retardant alloy and a preparation method thereof. The alloy material of the invention is mainly used for electrical parts and IC sockets with high heat resistance requirements. Grooves, connectors, auto parts, etc. Background technique [0002] At present, domestically produced materials are single-form polybutylene terephthalate (PBT) plus glass fiber flame-retardant modified materials or polyhexamethylene adipate (PA66) plus glass fiber flame-retardant modified materials. The fundamental difference between the two different types of materials is that the PBT plus glass fiber flame retardant modified material has the characteristics of easy molding, good surface smoothness, and good insulation performance of the product, but the material itself has a low thermal deformation temperature, which is not suitable for some heat-resistant products. The heat...

Claims

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Application Information

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IPC IPC(8): C08L77/06C08L67/03C08K7/14B29C47/40B29C47/92C08K5/524C08K5/09C08K5/02C08L51/06B29C48/92B29C48/40
CPCB29C2947/92704B29C48/92B29C2948/92704B29C48/40
Inventor 徐东贺永王贤文
Owner SHENZHEN KEJU NEW MATERIAL
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