Halogen-free flame retardant material with high heat deformation and preparation method thereof

A flame retardant material and high heat technology, applied in the field of flame retardant materials, can solve the problems of poor dimensional stability, high glass transition temperature, long molding cycle, etc., achieve good mechanical properties, simplify the preparation process, and reduce the production cost.

Inactive Publication Date: 2011-12-28
深圳市比克新材科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, PET has a high glass transition temperature, slow crystallization speed, long molding cycle, long molding cycle, large molding shrinkage, and poor dimensional stability. It needs nucleating agents and crystallization accelerators to obtain high heat distortion temperatures.
But there is no report about halogen-free flame retardant materials including PBT and PET

Method used

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  • Halogen-free flame retardant material with high heat deformation and preparation method thereof
  • Halogen-free flame retardant material with high heat deformation and preparation method thereof
  • Halogen-free flame retardant material with high heat deformation and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Step 1. According to the content of each component specified in Table 2, the following components are mixed: organic phosphate flame retardant, phosphorus liquid flame retardant, toughening agent, lubricant, antioxidant, inorganic oxide, silane Stir the coupling agent at 70-90°C at high speed for 4-6 minutes to make it evenly mixed to form the first mixture;

[0039] Step 2, according to the content of each component specified in Table 2, the following components: polybutylene terephthalate, polyethylene terephthalate, mixed under low-speed stirring conditions to form the second mixture;

[0040] Step 3, stirring the first mixture and the second mixture at a low speed for 5-8 minutes to form a granular mixture;

[0041] Step 4, the granular mixture and the glass fiber with the specified content in Table 2 are formed into a molten mixture under the conditions of 200-260°C, 320-400RPM, and 0.04-0.075MPa vacuum, and 60- Cooling at a temperature of 80°C gave a solid produ...

Embodiment 2

[0045] The method of Example 1 was repeated according to the content of each component specified in Table 2, and the performance of the solid product prepared in this example was measured according to the standards described in Table 1. See Table 2 for the measurement results.

Embodiment 3

[0047] The method of Example 1 was repeated according to the content of each component specified in Table 2, and the performance of the solid product prepared in this example was measured according to the standards described in Table 1. See Table 2 for the measurement results.

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Abstract

The invention discloses a high thermal deformation halogen-free flame retardant material and a preparation method thereof. The flame retardant material comprises the following components in parts by mass: 20-50 parts of polybutylene terephthalate; polybutylene terephthalate 10-40 parts of ethylene glycol formate; 15-24 parts of organic phosphate flame retardant; 1-3 parts of phosphorus liquid flame retardant; 10-30 parts of glass fiber; 2-4 parts of inorganic oxide. The preparation method of the high-heat deformation halogen-free flame-retardant material provided by the present invention simplifies the preparation process of the halogen-free flame-retardant material compared with the prior art, and reduces the production cost of the halogen-free flame-retardant material; the halogen-free flame-retardant material prepared by the present invention By adopting the components provided by the invention and the proportions among the components, compared with the existing flame retardant materials, the heat distortion temperature, glow wire temperature and flame retardancy are higher, and it has good mechanical properties.

Description

technical field [0001] The invention relates to the technical field of flame retardant materials, in particular to a high thermal deformation halogen-free flame retardant material and a preparation method thereof. Background technique [0002] Polybutylene terephthalate (PBT, Polybutylene terephthalate) is a milky white translucent to opaque, crystalline thermoplastic polyester. It has the characteristics of high heat resistance, toughness, fatigue resistance, self-lubrication, low coefficient of friction, weather resistance and low water absorption (only 0.1%). In a humid environment, PBT can still maintain the following physical properties: electrical insulation (but large volume resistance and dielectric loss), resistance to hot water, alkalis, acids, and oils. However, PBT is susceptible to corrosion by halogenated hydrocarbons. It has poor hydrolysis resistance, can crystallize rapidly at low temperature, and has good formability. At the same time, PBT also has bad c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L67/02C08K13/04C08K7/14C08K3/22C08K3/36
Inventor 张湘孟魏燕辉
Owner 深圳市比克新材科技有限公司
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