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Halogen-free flame retardant long glass fiber and PP (polypropylene) composite material and preparation method thereof

A composite material, alkali-free long glass fiber technology, applied in the field of composite materials, can solve the problems of corrosion, difficult to popularize and use, pollution of molds, etc., to improve flame retardant performance, excellent mechanical properties and flame retardant performance, eliminate wick effect of effect

Inactive Publication Date: 2016-01-27
HUIZHOU CHANGYI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing PP and long glass fiber products add bromine, chlorine and other halogen flame retardants to their raw materials in order to achieve better flame retardant effect. Although the flame retardant effect is excellent, it will produce large smoke and strong toxicity when burning. Hydrogen halide and other halogen-containing organic substances will produce dioxins when burned, which is extremely harmful to the human body
As we all know, halogen-based flame retardant materials will produce a large amount of toxic and corrosive smoke when burned, which will pollute and corrode the environment and molds, and have been banned in many developed countries; most halogen-free flame-retardant Although the effect of the drug is good, it is difficult to promote its use in China due to the high cost
In addition, these flame retardants have no substantial mitigation effect on the "wick effect" of long glass fibers, and are not resistant to high temperatures. They are easy to decompose and fail at high temperatures, and cannot fundamentally solve the fire resistance of long glass fiber PP composites. bad question

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] This embodiment provides a halogen-free flame-retardant long glass fiber PP composite material, the raw materials of which include by weight:

[0027] 17 parts of alkali-free long glass fiber;

[0028] PP65 copies;

[0029] 4 parts of compatibilizer;

[0030] 0.5 part of antioxidant;

[0031] 0.90 parts of flame retardant;

[0032] The alkali-free continuous glass fiber has a length of 10 mm and a diameter of 15 μm; the raw materials of the flame retardant include 5 parts of o-hydroxybenzaldehyde, 3 parts of hexanediol and 0.05 part of ferric oxide by weight.

[0033] Further, the compatibilizer is an ABS compatibilizer, and the antioxidant is antioxidant 1010 or antioxidant 168.

[0034] Further, the halogen-free flame-retardant long glass fiber PP composite material also includes 0.2 parts by weight of thermoplastic stabilizer; the thermoplastic stabilizer includes 2 parts by weight of sodium sulfate, 0.3 parts of calcium chloride And 3 parts of hydrochloric acid...

Embodiment 2

[0040] This embodiment provides a halogen-free flame-retardant long glass fiber PP composite material, the raw materials of which include by weight:

[0041] 20 parts of alkali-free long glass fiber;

[0042] PP50 copies;

[0043] 6 parts of compatibilizer;

[0044] 0.3 part of antioxidant;

[0045] 1.15 parts of flame retardant;

[0046] The alkali-free continuous glass fiber has a length of 6 mm and a diameter of 20 μm; the raw materials of the flame retardant include 1 part of o-hydroxybenzaldehyde, 4 parts of hexanediol, and 0.01 part of ferric oxide by weight.

[0047] Further, the compatibilizer is an ABS compatibilizer, and the antioxidant is antioxidant 1010 or antioxidant 168.

[0048] Further, the halogen-free flame-retardant long glass fiber PP composite material also includes 0.3 parts by weight of thermoplastic stabilizer; the thermoplastic stabilizer includes 1 part by weight of sodium sulfate, 0.4 part of calcium chloride And 2 parts of hydrochloric acid of...

Embodiment 3

[0051] This embodiment provides a halogen-free flame-retardant long glass fiber PP composite material, the raw materials of which include by weight:

[0052] 20 parts of alkali-free long glass fiber;

[0053] PP50 copies;

[0054] 6 parts of compatibilizer;

[0055] 0.3 part of antioxidant;

[0056] 1.15 parts of flame retardant;

[0057]The alkali-free continuous glass fiber has a length of 6 mm and a diameter of 20 μm; the raw materials of the flame retardant include 1 part of o-hydroxybenzaldehyde, 4 parts of hexanediol, and 0.01 part of ferric oxide by weight.

[0058] Further, the compatibilizer is an ABS compatibilizer, and the antioxidant is antioxidant 1010 or antioxidant 168.

[0059] Further, the halogen-free flame-retardant long glass fiber PP composite material also includes 0.3 parts by weight of thermoplastic stabilizer; the thermoplastic stabilizer includes 1 part by weight of sodium sulfate, 0.4 part of calcium chloride And 2 parts of 3wt% concentration of...

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Abstract

The invention discloses a halogen-free flame retardant long glass fiber and PP (polypropylene) composite material. A particularly designed flame retardant is added to the long glass fiber and PP composite material and comprises proper amount of salicylaldehyde, hexanediol and ferric oxide, the flame retardancy of a product can be improved effectively, the composite material does not burn or drip at a high temperature, and a wicking action of long glass fibers is eliminated effectively. The invention further provides a preparation method of the halogen-free flame retardant long glass fiber and PP composite material. With adoption of the method, the flame retardancy of the long glass fiber and PP composite material can be further improved. Due to excellent mechanical properties and flame retardancy, the long glass fiber and PP composite material is particularly applicable to preparation of automobile parts, components of electronic products and the like.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a halogen-free flame-retardant long glass fiber PP composite material and a preparation method thereof. Background technique [0002] Long glass fiber reinforced pellets refer to pellets with fibers arranged in one direction, and the length of the fibers is equal to the length of the pellets, generally greater than 5 mm. In China, research on long glass fibers is still in its infancy, and long glass fibers are generally used to improve the mechanical properties of polymer materials. Polypropylene resin (PP) is a general-purpose plastic with a wide range of uses. It is obtained by polymerization of propylene monomer. The advantages of polypropylene resin are low density, low price, excellent chemical corrosion resistance, good mechanical properties, Outstanding folding resistance and good formability. As a typical crystalline material, its melting point is around 165...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L55/02C08K13/04C08K7/14C08K5/13C08K5/053C08K3/22
CPCC08K2201/003C08K2201/004C08L23/12C08L2201/02C08L2201/22C08L55/02C08K13/04C08K7/14C08K5/13C08K5/053C08K2003/2272
Inventor 林湖彬刘勋杜崇铭朱建一林志丹王玉海
Owner HUIZHOU CHANGYI TECH