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Flame-retardant silicon carbide filled nylon 6-polyethylene alloy composite material

A composite material and silicon carbide technology, applied in the field of nylon 6 and polyethylene alloy composite materials, can solve the problems of easy moisture absorption, poor impact resistance of nylon, restricting application fields, etc., and achieve the effect of not easy to absorb moisture

Active Publication Date: 2013-09-25
苏州宇度医疗器械有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002]Although nylon has a wide range of uses, nylon has disadvantages such as poor impact resistance and easy moisture absorption, which restricts the expansion of its application fields to a certain extent, so there are It is necessary to modify it by reasonable technical means, for this reason the applicant has made positive attempts and formed the technical scheme to be disclosed below

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] In parts by weight, 290 parts of nylon 6 resin with a melting point of 225°C, 100 parts of polyethylene resin or low-density polyethylene, 40 parts of polyethylene grafted with maleic anhydride (grafting rate of 2.3%), coupling The agent is 5 parts of 3-aminopropyltriethoxysilane, the filler is 130 parts of surface-treated magnesium hydroxide, the flame retardant is 30 parts of decabromodiphenyl ether, and the aspect ratio of silicon carbide is 200-250. 90 parts of mustard, 1.5 parts of tris[2,4 di-tert-butylphenyl] phosphite as an antioxidant, 190 parts of alkali-free chopped glass fibers with a length of 3 mm and 1.8 parts of bisstearic acid amide as a surface modifier share.

Embodiment 2

[0028] In parts by weight, 310 parts of nylon 6 resin having a melting point of 225°C, 90 parts of polyethylene resin or low-density polyethylene, 45 parts of polyethylene grafted with maleic anhydride (grafting rate 2.3%), coupling The agent is 7.5 parts of 3-aminopropyltriethoxysilane, the filler is 90 parts of surface-treated magnesium hydroxide, the flame retardant is 40 parts of decabromodiphenyl ether, and the silicon carbide crystal with an aspect ratio of 200-250 70 parts of mustard, 1.8 parts of tris[2,4 di-tert-butylphenyl] phosphite as an antioxidant, 165 parts of alkali-free chopped glass fibers with a length of 3mm and 1.2 parts of bisstearic acid amide as a surface modifier share.

Embodiment 3

[0030] In parts by weight, 340 parts of nylon 6 resin with a melting point of 225°C, 120 parts of polyethylene resin or low-density polyethylene, 55 parts of polyethylene grafted with maleic anhydride (graft rate 2.3%), coupling The agent is 6.5 parts of 3-aminopropyltriethoxysilane, the filler is 110 parts of surface-treated magnesium hydroxide, the flame retardant is 45 parts of decabromodiphenyl ether, and the aspect ratio of silicon carbide is 200-250. 75 parts of mustard, 2 parts of three [2,4 di-tert-butylphenyl] phosphite as an antioxidant, 180 parts of alkali-free chopped glass fiber with a length of 3 mm and 1.6 parts of bisstearic acid amide as a surface modifier share.

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Abstract

Belonging to the technical field of high polymer materials, the invention relates to a flame-retardant silicon carbide filled nylon 6-polyethylene alloy composite material. The composite material is composed of the following raw materials by weight: 290-340 parts of nylon 6 resin; 90-120 parts of polyethylene resin; 40-55 parts of grafted polyethylene resin; 5-7.5 parts of a coupling agent; 90-130 parts of a filling material; 30-50 parts of a flame retardant; 70-90 parts of silicon carbide; 1.5-2 parts of an antioxidant; 150-190 parts of a glass fiber; and 1.2-2.1 parts of a surface modifier. The composite material of the invention has the advantages of: tensile strength of more than 165MPa, bending strength of more than 235MPa, izod notched impact strength of more than 28.5kj / m<2>, a melt index of greater than 25g / 10min, a flame retardant grade up to V-0, difficult moisture absorption, and ability to satisfy the requirements of making building and machinery parts.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a flame-retardant silicon carbide-filled nylon 6 and polyethylene alloy composite material. Background technique [0002] Although nylon has a wide range of uses, nylon has disadvantages such as poor impact resistance and easy moisture absorption, which restricts the expansion of its application field to a certain extent. Therefore, it is necessary to modify it with reasonable technical means. For this reason, the present application People have made positive attempts to form the technical scheme that will be disclosed below. Contents of the invention [0003] The task of the present invention is to provide a flame retardant silicon carbide filled nylon 6 and polyethylene alloy composite material which helps to ensure good impact resistance, which facilitates the elimination of moisture absorption and thus is suitable for the production of construction and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L77/02C08L23/06C08L51/06C08K13/06C08K9/00C08K3/22C08K7/10C08K7/14
Inventor 陶渭清沈兴元颜卫峰陶立强
Owner 苏州宇度医疗器械有限责任公司