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PP composite and preparation method thereof

A technology of composite materials and raw materials, applied in the field of composite materials, can solve the problems of corrosion, difficult to popularize and use, corrosive smoke, etc., and achieve the effect of preventing the delamination of long glass fibers and PP

Inactive Publication Date: 2017-01-11
陈晓锋
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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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  • PP composite and preparation method thereof
  • PP composite and preparation method thereof
  • PP composite and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0026] The present embodiment provides a kind of PP composite material, and its raw material comprises by weight:

[0027] 22 parts of alkali-free long glass fiber;

[0028] PP 69 parts;

[0029] 4 parts of compatibilizer;

[0030] 0.5 part of antioxidant;

[0031] 0.89 parts of flame retardant;

[0032] The alkali-free continuous glass fiber has a length of 12 mm and a diameter of 16 μm; the raw materials of the flame retardant include 4 parts by weight of p-nitrobenzyl alcohol, 3 parts of zinc borate, and 0.05 parts of potassium polyacrylate.

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

[0034] Further, the PP composite material also includes 0.2 parts by weight of a thermoplastic stabilizer; the thermoplastic stabilizer includes 2 parts by weight of sodium sulfate, 0.2 parts of disodium hydrogen phosphate and 2 parts of 3wt% concentration of hydrochloric acid.

[0035] This embodiment also ...

Embodiment 2

[0040] The present embodiment provides a kind of PP composite material, and its raw material comprises by weight:

[0041] 15 parts of alkali-free long glass fiber;

[0042] PP 75 copies;

[0043] 2 parts of compatibilizer;

[0044] Antioxidant 0.7 part;

[0045] 1.09 parts of flame retardant;

[0046] The alkali-free continuous glass fiber has a length of 8 mm and a diameter of 20 μm; the raw materials of the flame retardant include 2 parts by weight of p-nitrobenzyl alcohol, 7 parts of zinc borate, and 0.02 parts of potassium polyacrylate.

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

[0048] Further, the PP composite material also includes 0.3 parts by weight of a thermoplastic stabilizer; the thermoplastic stabilizer includes 2 parts by weight of sodium sulfate, 0.3 parts of disodium hydrogen phosphate and 2 parts of 3wt% concentration of hydrochloric acid.

[0049] The present embodiment a...

Embodiment 3

[0051] The present embodiment provides a kind of PP composite material, and its raw material comprises by weight:

[0052] 25 parts of alkali-free long glass fiber;

[0053] 60 copies of PP;

[0054] 7 parts of compatibilizer;

[0055] Antioxidant 0.2 parts;

[0056] 1.09 parts of flame retardant;

[0057] The alkali-free continuous glass fiber has a length of 8 mm and a diameter of 20 μm; the raw materials of the flame retardant include 2 parts by weight of p-nitrobenzyl alcohol, 7 parts of zinc borate, and 0.02 parts of potassium polyacrylate.

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

[0059] Further, the PP composite material also includes 0.3 parts by weight of a thermoplastic stabilizer; the thermoplastic stabilizer includes 2 parts by weight of sodium sulfate, 0.3 parts of disodium hydrogen phosphate and 2 parts of 3wt% concentration of hydrochloric acid.

[0060] This embodiment adopts...

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Abstract

The invention discloses a PP composite. A specially designed flame retardant is added into a long glass fiber PP composite and contains appropriate p-nitrobenzyl alcohol, zinc borate and potassium polyacrylate and can effectively improve the flame retardance of the product; and the composite does not burn or drop at high temperature and can effectively eliminate the 'wick effect' of long glass fiber. The invention also provides a preparation method of a halogen flame-retardant long glass fiber PP composite capable of further improving the flame retardance of the long glass fiber PP composite. Due to excellent mechanical property and flame retardance, the long glass fiber PP composite disclosed by the invention is particularly suitable for preparing auto parts, electronic product elements and the like.

Description

technical field [0001] The invention relates to the technical field of composite materials, in particular to a 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 5mm. 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°C. [0003] Long glass fiber reinforced PP ma...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/12C08L55/02C08L33/02C08K13/04C08K7/14C08K5/32C08K3/38C08K5/134C08K5/526
CPCC08L23/12C08L2201/02C08L2205/03C08L55/02C08L33/02C08K13/04C08K7/14C08K5/32C08K2003/387C08K5/1345C08K5/526
Inventor 陈晓锋
Owner 陈晓锋