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Polybutylene terephthalate composition and its preparation method

A technology of polybutylene terephthalate and its composition, which is applied in the field of polybutylene terephthalate composition and its preparation, and can solve the problem of poor flame retardancy of resin, easy dripping, and affecting material flame retardancy Level and other issues, to achieve balanced mechanical properties, good fluidity, and good gloss

Active Publication Date: 2013-01-02
HEFEI GENIUS NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The disadvantage of polybutylene terephthalate resin is that the resin itself has poor flame retardancy. When fillers or other reinforcing materials are added to the resin, the flame-retardant modification is relatively simple, and it is easy to reach V-0 or 5VA level, but in In the case of no filling, the material is easy to drip when burned, which will ignite the absorbent cotton, thus affecting the flame retardant level of the material

Method used

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  • Polybutylene terephthalate composition and its preparation method
  • Polybutylene terephthalate composition and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] (1) Dry polybutylene terephthalate at 110-120°C for 3-4h;

[0042] (2) Weigh 78 parts of dry polybutylene terephthalate, 13.5 parts of brominated epoxy resin KBE-2025K, 2.5 parts of antimony trioxide, 3 parts of polyphosphate synergistic flame retardant RH03W101, add Toughening agent ethylene-methyl acrylate-glycidyl methacrylate AX8900 3 parts, anti-dripping agent high molecular weight special modified polytetrafluoroethylene PTFE A3800 0.5 parts, antioxidant 1010 / 168 (1:1) 0.4 parts , 0.3 part of lubricant Lico Wax E;

[0043] (3) Stir the material weighed in the above step (2) in a high-speed mixer for 3-5min;

[0044] (4) Then the above-mentioned uniformly mixed material is added to the feeding port of the twin-screw extruder;

[0045] (5) The material is melted and extruded by a twin-screw extruder, and granulated;

[0046] The processing technology of the twin-screw extruder is as follows: the temperature of the first zone of the twin-screw extruder is 180-220°...

Embodiment 2

[0048] (1) Dry polybutylene terephthalate at 110-120°C for 3-4h;

[0049] (2) Weigh 77.5 parts of dry polybutylene terephthalate, 14 parts of brominated epoxy resin KBE-2025K, 2.5 parts of antimony trioxide, 3 parts of polyphosphate synergistic flame retardant RH03W101, add Toughening agent ethylene-methyl acrylate-glycidyl methacrylate AX8900 3 parts, anti-dripping agent high molecular weight special modified polytetrafluoroethylene PTFE A3800 0.5 parts, antioxidant 1010 / 168 (1:1) 0.4 parts , 0.5 parts of lubricant Lico Wax E;

[0050] (3) Stir the material weighed in the above step (2) in a high-speed mixer for 3-5min;

[0051] (4) Then the above-mentioned uniformly mixed material is added to the feeding port of the twin-screw extruder;

[0052] (5) The material is melted and extruded by a twin-screw extruder, and granulated;

[0053]The processing technology of the twin-screw extruder is as follows: the temperature of the first zone of the twin-screw extruder is 180-220°...

Embodiment 3

[0055] (1) Dry polybutylene terephthalate at 110-120°C for 3-4h;

[0056] (2) Weigh 76.5 parts of dry polybutylene terephthalate, 15 parts of brominated epoxy resin KBE-2025K, 2.5 parts of antimony trioxide, 3 parts of polyphosphate synergistic flame retardant RH03W101, add Toughening agent ethylene-methyl acrylate-glycidyl methacrylate AX8900 3 parts, anti-dripping agent high molecular weight special modified polytetrafluoroethylene PTFE A3800 0.3 parts, antioxidant 1010 / 168 (1:1) 0.4 parts , 0.5 parts of lubricant Lico Wax E;

[0057] (3) Stir the material weighed in the above step (2) in a high-speed mixer for 3-5min;

[0058] (4) Then the above-mentioned uniformly mixed material is added to the feeding port of the twin-screw extruder;

[0059] (5) The material is melted and extruded by a twin-screw extruder, and granulated;

[0060] The processing technology of the twin-screw extruder is as follows: the temperature of the first zone of the twin-screw extruder is 180-220...

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Abstract

The invention discloses a polybutylene terephthalate composition and its preparation method, falling into the polymer composite field. The composition includes polybutylene terephthalate 70-80, brominated epoxy resin 12-15, flame retardant synergist 5-10, anti-dripping modifier 0.1-0.5, plasticizer 1-8, and processing aid 0.5-1 weight parts. The preparation method includes adding dry polybutylene terephthalate 70-80, brominated epoxy resin 12-15, flame retardant synergist 5-10, anti-dripping modifier 0.1-0.5, plasticizer 1-8, and processing aid 0.5-1 weight parts in a high-speed mixer, and stirring for 3-5 min; adding the uniformly-mixed material in a feed inlet of a double screw extruder; and performing melt extrusion on the material via the double screw extruder, and granulating to obtain the polybutylene terephthalate composition. The inventive composition has low cost, balanced mechanical property, and good flowability.

Description

technical field [0001] The invention belongs to the field of polymer composite materials, and relates to a polybutylene terephthalate composition and a preparation method thereof. Background technique [0002] Polybutylene terephthalate has excellent mechanical properties, which rarely change even under high temperature conditions, and the energy consumption for production is the lowest among engineering plastics; outstanding aging resistance; good resistance to organic solvents; excellent electrical properties; moisture absorption Small resistance; excellent comprehensive performance, good molding processability and excellent cost performance, making it the latest industrialized but fastest-growing variety among engineering plastics. [0003] The disadvantage of polybutylene terephthalate resin is that the resin itself has poor flame retardancy. When fillers or other reinforcing materials are added to the resin, the flame-retardant modification is relatively simple, and it ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08L63/00C08K13/02C08K3/22C08K3/32B29B9/06B29C47/92B29C48/92
CPCB29C48/04B29C48/40
Inventor 吴安琪范继贤孙利明
Owner HEFEI GENIUS NEW MATERIALS