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Glass-fiber-reinforced PBT composite material and preparing method thereof

A composite material and glass fiber technology, which is applied in the field of glass fiber reinforced PBT composite material and its preparation, can solve problems such as limiting the scope of application, and achieve the effects of increasing the reaction effect, preventing quartz from sinking, and improving light transmittance.

Inactive Publication Date: 2018-08-28
福建华塑新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the light transmittance of most products such as lampshades made of PBT can only reach about 85%, which limits its application range, so it needs to be improved

Method used

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  • Glass-fiber-reinforced PBT composite material and preparing method thereof
  • Glass-fiber-reinforced PBT composite material and preparing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A glass fiber reinforced PBT composite material, comprising: 65 parts by weight of PBT, 14 parts of glass fiber, 17 parts of composite flame retardant, 1 part of toughening agent, 8 parts of filler, 0.6 part of PMMA, 0.4 part of antioxidant .

[0026] Specifically, the composite flame retardant is composed of brominated flame retardant and antimony trioxide.

[0027] Specifically, the brominated flame retardant is decabromodiphenylethane, brominated triazine or brominated epoxy resin.

[0028] Specifically, the filling includes fumed silica and quartz powder.

[0029] A preparation method of glass fiber reinforced PBT composite material, comprising the following steps:

[0030] 1) Add PBT to an engineering plastic grinder for crushing, pass through a 200-mesh sieve, and set aside;

[0031] 2) Put the quartz into a calcination furnace at 1500°C for 25 minutes to make it colloidal, and cool it down to room temperature with the furnace, then take it out and put it into ...

Embodiment 2

[0037] A kind of glass fiber reinforced PBT composite material and preparation method thereof as described in embodiment 1, can also adopt following technology:

[0038] In parts by weight, it includes: 57 parts of PBT, 28 parts of glass fiber, 16 parts of composite flame retardant, 2 parts of toughening agent, 6 parts of filler, 0.3 part of PMMA, and 0.7 part of antioxidant.

[0039] In step 2), the calcination time is 32 minutes.

[0040] In step 4), the stirring speed is 2700r / min, and the stirring time is 26min.

[0041] In step 5), the mixing temperature of the first section is 310°C and the mixing time is 17 minutes; the mixing temperature of the second section is 320°C and the mixing time is 41 minutes; the mixing temperature of the third section is 440°C and the mixing time is 10min.

[0042] In step 6), the extrusion temperature of the independent section is 450°C, the extrusion temperature of the filling section is 480°C, and the extrusion temperature of the meshin...

Embodiment 3

[0044] A kind of glass fiber reinforced PBT composite material and preparation method thereof as described in embodiment 1, can also adopt following technology:

[0045] In parts by weight, it includes: 70 parts of PBT, 10 parts of glass fiber, 20 parts of composite flame retardant, 6 parts of toughening agent, 5 parts of filler, 1 part of PMMA, and 0.2 part of antioxidant.

[0046] In step 2), the calcination time is 40 minutes.

[0047] In step 4), the stirring speed is 2000r / min, and the stirring time is 40min.

[0048] In step 5), the mixing temperature of the first section is 250°C and the mixing time is 28 minutes; the mixing temperature of the second section is 380°C and the mixing time is 22 minutes; the mixing temperature of the third section is 350°C and the mixing time is It is 18min.

[0049] In step 6), the extrusion temperature of the independent section is 480°C, the extrusion temperature of the filling section is 460°C, and the extrusion temperature of the me...

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PUM

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Abstract

The invention provides a glass-fiber-reinforced PBT composite material and a preparing method thereof. According to the glass-fiber-reinforced PBT composite material and the preparing method, glass fibers and quartz fillers are added into ingredients, and meanwhile components such as a composite flame retardant and PMMA are added; during preparing, components are prepared into a first material anda second material, and high-speed stirring and mixing are adopted during preparing; in this way, quartz can be effectively prevented from sinking, it is guaranteed that the fillers and the other materials are evenly mixed, and the acting capacity is improved; meanwhile, the technological parameters such as the mixing time, the mixing temperature and the extrusion temperature are strictly controlled to improve the reaction effect of the components, the synergistic interaction effect is achieved, and the performance of the product is greatly improved; a test shows that the reinforced PBT composite material prepared with the method has good light transmittance, and the highest light transmittance is up to 85%; meanwhile, the reinforced PBT composite material has the excellent flame retardantperformance which is up to V-0, and the glass-fiber-reinforced PBT composite material can be widely applied to various lampshade fields.

Description

technical field [0001] The invention relates to the field of polymer materials, in particular to a glass fiber reinforced PBT composite material and a preparation method thereof. Background technique [0002] At present, the light transmittance of most products such as lampshades made of PBT can only reach about 85%, which limits its application range, so it needs to be improved. Contents of the invention [0003] In order to overcome the above problems, the present invention provides a glass fiber reinforced PBT composite material and a preparation method thereof. [0004] To achieve the above object, the technical solution provided by the invention is: [0005] A glass fiber reinforced PBT composite material, comprising: 50-70 parts by weight of PBT, 10-30 parts of glass fiber, 15-20 parts of composite flame retardant, 1-6 parts of toughening agent, 5-10 parts of filler , PMMA 0.2-1 part, antioxidant 0.2-0.8 part. [0006] Preferably, in parts by weight: 65 parts of P...

Claims

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Application Information

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IPC IPC(8): C08L67/02C08L33/12C08K13/04C08K7/14C08K3/34C08K5/03C08K3/22C08J5/04B29B9/06B29C47/92B29C48/92
CPCB29B9/06B29C48/92B29C2948/92704C08J5/043C08J2367/02C08J2433/12C08K3/2279C08K3/34C08K5/03
Inventor 蔡鹏飞林建民
Owner 福建华塑新材料有限公司