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Halogen-free flame retardant long glass fibre reinforcement polypropylene composite material and preparation method thereof

A long glass fiber and polypropylene material technology, which is applied in the field of halogen-free flame-retardant long glass fiber-reinforced polypropylene composite materials and its preparation, can solve the problem of no report on the development and research of halogen-free flame-retardant long glass fiber-reinforced polypropylene materials, etc. problems, to achieve good mechanical properties, good flame retardant properties, and simple operation

Active Publication Date: 2011-05-18
SHANGHAI KINGFA SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent CN1058026C, CN 1810870A, patent CN1068358C, etc. have all prepared long glass fiber reinforced polypropylene composite materials, but there is no report on the development and research of halogen-free flame retardant long glass fiber reinforced polypropylene materials

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The long glass fiber reinforced polypropylene masterbatch (brand name is PP MB120H-7#, produced by Kingfa Technology Co., Ltd., the amount of polypropylene and long glass fiber is 50wt% and 50wt%) is 40% by weight, halogen-free flame retardant Masterbatch (produced by Shanghai Kingfa Technology Development Co., Ltd., 25wt% high-density polyethylene produced by Sinopec Yangzi Petrochemical Co., Ltd. and JLS-PNP1D75wt% halogen-free flame retardant produced by Hangzhou Jieersi Flame Retardant Chemical Co., Ltd. , after internal mixing in a internal mixer at 130°C, extrude and granulate with a single-screw extruder while it is hot) the weight percentage is 47%, and the functional masterbatch (produced by Shanghai Kingfa Technology Development Co., Ltd., produced by China Sea Shell Petrochemical Co., Ltd. Polypropylene resin PP HP550R 90wt% and antioxidant tetrakis [β-(3,5-di-tert-butyl-4-hydroxyphenyl)propionic acid] pentaerythritol ester 10wt% are extruded through an extrud...

Embodiment 2

[0023] The long glass fiber reinforced polypropylene masterbatch (the brand name is PP MB120H-7#, produced by Kingfa Science and Technology Co., Ltd., the dosage of polypropylene and long glass fiber is 50wt% and 50wt%) is 50% by weight, and the halogen-free resist Combustion masterbatch (produced by Shanghai Kingfa Technology Development Co., Ltd., 50wt% of high-density polyethylene produced by Sinopec Yangzi Petrochemical Co., Ltd. and JLS-PNP1D 50wt% of halogen-free flame retardant produced by Hangzhou Jieersi Flame Retardant Chemical Co., Ltd. , after internal mixing by internal mixer at 130°C, extruded and granulated by single-screw extruder while hot, the weight percentage is 39%, functional masterbatch (produced by Shanghai Kingfa Technology Development Co., Ltd., produced by China Sea Shell Petrochemical Co., Ltd. Polypropylene resin PP HP550R 100wt% through 180 ℃, the extruder extruding granulation preparation of 400rpm rotating speed) weight percent is 0.5%, polypropy...

Embodiment 3

[0025] The long glass fiber reinforced polypropylene masterbatch (the brand name is PP MB120H-7#, produced by Kingfa Science and Technology Co., Ltd., the dosage of polypropylene and long glass fiber is 50wt% and 50wt%) is 50% by weight, and the halogen-free resist Combustion masterbatch (produced by Shanghai Kingfa Technology Development Co., Ltd., 50wt% of high-density polyethylene produced by Sinopec Yangzi Petrochemical Co., Ltd. and JLS-PNP1D50wt of halogen-free flame retardant produced by Hangzhou Jieersi Flame Retardant Chemical Co., Ltd. %, after internal mixing by internal mixer at 130°C, it is extruded and granulated by single-screw extruder while it is hot) The weight percentage is 47%, functional masterbatch (produced by Shanghai Kingfa Technology Development Co., Ltd., produced by China Sea Shell Petrochemical Co., Ltd. The polypropylene resin PP HP550R 95wt% and the antioxidant tetrakis [β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionic acid] pentaerythritol ester 5...

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PUM

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Abstract

The invention provides a halogen-free flame-retardant long glass fiber reinforced polypropylene material, which is characterized by comprising the following raw materials in weight percentage: 40 to 60 weight percent of long glass fiber reinforced polypropylene master batch, 35 to 49 weight percent of halogen-free flame-retardant master batch, 0.5 to 1.5 weight percent of functional assistant master batch, and 0 to 14 weight percent of polypropylene resin. The invention also provides a preparation method for the materials, which is characterized by comprising the following steps: mixing the raw materials, drying the mixture for 5 hours at a temperature of 80 DEG C, and forming the polypropylene material by injection, wherein working conditions of an injection molding machine are as follows: a first area temperature of between 190 and 200 DEG C, a second area temperature of between 200 and 205 DEG C, a third area temperature of between 200 and 205 DEG C, and a fourth area temperature of between 200 and 205 DEG C; and carrying out the injection molding at medium pressure and medium speed. The preparation method has the advantages of simple processes and lower cost; and the prepared halogen-free flame-retardant long glass fiber reinforced polypropylene material has the advantages of higher tensile strength, bending modulus and impact strength, and better flame-retardant property.

Description

technical field [0001] The invention relates to a halogen-free flame-retardant long glass fiber reinforced polypropylene composite material and a preparation method thereof, belonging to the field of polymer processing. Background technique [0002] Long glass fiber reinforced polypropylene material has the advantages of high strength, high stiffness, high impact strength, low warpage and creep, and good dynamic fatigue resistance. Because of its high cost performance, it is widely used in household appliances, auto parts, textile industry, etc. With the continuous expansion of the application of long glass fiber reinforced polypropylene in the field of household appliances and automobiles, and the continuous enhancement of people's safety and environmental awareness, this requires long glass fiber reinforced polypropylene to have certain flame retardancy and is conducive to environmental protection. fueled to meet people's needs. [0003] Due to the high viscosity of polyp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L23/12C08K7/14C08K3/32C08K5/134C08J3/22C08J5/04B29B7/28B29B9/02B29C47/92B29C45/76B29C48/92
CPCB29C48/04B29C48/397B29C48/92B29C2948/9259B29C2948/92704B29C2948/92885B29C2948/92895
Inventor 丁正亚冯德才苏妤
Owner SHANGHAI KINGFA SCI & TECH