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Bidirectional continuous glass fiber reinforced PP (polypropylene) flame-retardant aging-resistant plate as well as preparation method thereof

An anti-aging and anti-aging agent technology, which is applied in the field of two-way continuous glass fiber reinforced polypropylene resin sheet and its preparation, can solve the problems of anti-aging agent compounding, mechanical property decline, short service life, etc., and achieve good compoundability , high mechanical properties, the effect of excellent mechanical properties

Inactive Publication Date: 2013-10-30
LIAONING LIAOJIE SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this technical scheme, the flame retardant is compounded with decabromodiphenylethane and antimony trioxide in a relatively high proportion, which will affect the infiltration effect of glass fiber during the coating process.
[0006] However, the flame retardancy of continuous glass fiber reinforced thermoplastic resin composites has always been a fatal shortcoming of this material.
Due to its very high glass fiber content, which can reach about 50%, the mechanical properties have been greatly improved, but it is precisely because of the high glass fiber content and continuous glass fiber that some PP substrates are flame retardant V -0 level can not block the generation of wick effect
Even if some PP matrix has excellent flame retardant effect, the final formed continuous fiber reinforced polypropylene resin composite sheet can reach the V-0 level of UL-94 standard, but part of the reason is that it cannot be compounded with anti-aging agent, so that although it has high However, the service life is extremely short and fails; another part of the reason is that when the polypropylene glass fiber composite material has excellent flame retardancy, but its mechanical properties decline seriously, this method is even more meaningless.

Method used

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  • Bidirectional continuous glass fiber reinforced PP (polypropylene) flame-retardant aging-resistant plate as well as preparation method thereof
  • Bidirectional continuous glass fiber reinforced PP (polypropylene) flame-retardant aging-resistant plate as well as preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] (1) the polypropylene resin of 10 parts by weight, the PP-based flame retardant masterbatch of 40 parts by weight, the antioxidant 1010 of 0.3 part (tetrakis [β-(3 ', 5 '-di-tert-butyl -4'-hydroxyphenyl) propionic acid] pentaerythritol ester), 0.9 parts of antioxidant 168 (three [2.4-di-tert-butylphenyl] phosphite), 0.15 parts of main antiaging agent UV326 (2-( 2'-hydroxyl-3'tert-butyl-5'-methylphenyl)-5-chlorobenzotriazole) and 0.15 parts of auxiliary anti-aging agent HALS770 (bis(2,2,6,6-tetra Methyl-4-piperidinyl) sebacate) mixture, after fully mixing in a high-speed mixer, dry the mixture at 80°C for 1 hour, add it to the extruder, and melt it at 240°C Composite with 50 parts by weight of oven-dried continuous glass fibers with a moisture content of less than 0.01%, and flatten to make continuous glass fiber reinforced polypropylene (PP / GF) unidirectional prepreg tape;

[0054] (2) Cut the continuous glass fiber reinforced polypropylene unidirectional prepreg tape ...

Embodiment 2

[0059] (1) the polypropylene resin of 15 parts by weight, the PP base flame retardant masterbatch of 35 parts by weight, the antioxidant 1010 of 0.4 part (tetrakis [β-(3 ', 5 '-di-tert-butyl -4'-hydroxyphenyl) propionic acid] pentaerythritol ester), 1.2 parts of antioxidant 168 (three [2.4-di-tert-butylphenyl] phosphite), 0.17 parts of main antiaging agent UV326 (2-( 2'-hydroxyl-3'tert-butyl-5'-methylphenyl)-5-chlorobenzotriazole) and 0.15 parts of auxiliary anti-aging agent HALS770 (bis(2,2,6,6-tetra Methyl-4-piperidinyl) sebacate) mixture, after being thoroughly mixed in a high-speed mixer, the mixture was dried at 80°C for 1 hour, and melted at 235°C with 50 parts by weight After oven drying, the moisture content is less than 0.01% continuous glass fiber composite, and flattened to make continuous glass fiber reinforced polypropylene unidirectional prepreg tape;

[0060] (2) Cut the continuous glass fiber reinforced polypropylene unidirectional prepreg tape (prepreg tape s...

Embodiment 3

[0065] (1) the polypropylene resin of 20 parts by weight, the PP base flame retardant masterbatch of 30 parts by weight, the antioxidant 1010 of 0.5 part (tetrakis [β-(3 ', 5 '-di-tert-butyl -4'-hydroxyphenyl) propionic acid] pentaerythritol ester), 1.5 parts of antioxidant 168 (three [2.4-di-tert-butylphenyl] phosphite), 0.2 parts of main antiaging agent UV326 (2-( 2'-hydroxyl-3'tert-butyl-5'-methylphenyl)-5-chlorobenzotriazole) and 0.2 parts of auxiliary anti-aging agent HALS770 (bis(2,2,6,6-tetra Methyl-4-piperidinyl) sebacate) mixture, after fully mixing uniformly in a high-speed mixer, drying the mixture at 80°C for 1 hour, melting at 240°C with 50 parts by weight Parts are oven-dried and the moisture content is less than 0.01% continuous glass fiber composite, and flattened to make a unidirectional prepreg tape;

[0066] (2) Cut the continuous glass fiber reinforced polypropylene unidirectional prepreg tape (prepreg tape specifications: thickness 0.25mm, width 650mm, le...

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Abstract

The invention belongs to the technical field of high polymer materials, and relates to a continuous glass fiber reinforced PP (polypropylene) plate as well as a preparation method thereof. The plate is prepared from the following components in parts by weight: 10-20 parts of PP resin, 50 parts of continuous glass fibers, 30-40 parts of PP-based flame retardant master batch, 0.3-0.5 part of a primary antioxidant, 0.9-1.5 parts of auxiliary antioxidants, 0.15-0.2 part of a primary aging-resistant agent and 0.15-0.2 part of auxiliary aging-resistant agents. The continuous glass fiber reinforced PP plate provided by the invention has efficient flame retardance, a high mechanical property and a favorable compound property; additionally, the flame retardants, the antioxidants and the aging-resistant agents in the bidirectional continuous glass fiber reinforced PP resin compound material cannot generate side effects, and the aging-resistant agents and the antioxidants take effect altogether, so that not only is the stability of a base body protected, but also the stability of the flame retardants is protected, and the permanent flame retardance of the material is kept.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and relates to a bidirectional continuous glass fiber reinforced polypropylene resin plate and a preparation method thereof. Background technique [0002] Continuous fiber reinforced polypropylene resin is composed of fiber and resin. Polypropylene resin (PP) has excellent physical and mechanical properties, chemical resistance and repeatable processing performance. It is used in the fields of household electronic appliances, auto parts and industrial materials. Has been widely used. However, when making some engineering parts and some polymer materials that require high performance, its performance cannot meet the requirements, so its application range is limited to a certain extent; while fibers have high tensile strength, but are easily damaged and Not easy to form and process. The combination of fiber and resin complements the defects of the two, which greatly improves the compreh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08K13/04C08K7/14C08K5/527C08J3/22B29C70/30
Inventor 邢明祥
Owner LIAONING LIAOJIE SCI & TECH
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