Flame-retardant polyolefin composite material as well as preparation method and application thereof

A composite material and polyolefin technology, applied in the field of composite materials, can solve the problems of unsatisfactory flame retardancy and mechanical properties, and achieve the effects of improving mechanical properties and high temperature stability, excellent performance, and improving safety

Active Publication Date: 2021-10-22
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the above-mentioned deficiencies of the prior art, to provide a kind of flame-retardant polyolefin composite ma

Method used

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  • Flame-retardant polyolefin composite material as well as preparation method and application thereof
  • Flame-retardant polyolefin composite material as well as preparation method and application thereof
  • Flame-retardant polyolefin composite material as well as preparation method and application thereof

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preparation example Construction

[0044] On the other hand, the embodiment of the present invention also provides the preparation method of the above flame-retardant polyolefin composite material. The preparation method of above flame-retardant polyolefin composite material comprises the following steps:

[0045] S01. Weigh the formula components: weigh each component according to the formula of the flame-retardant polyolefin composite material above;

[0046] S02. Plasticizing after mixing: the weighed components are mixed and then plasticized to obtain a flame-retardant polyolefin composite material.

[0047] Specifically, the formulation of the flame-retardant polyolefin composite material in the above step S01 and the preferred content and type of each component in the formulation are as described above, and will not be repeated here to save space.

[0048] In an embodiment, at least one of magnesium hydroxide, calcium carbonate, and glass frit is ideally three when being surface-modified by a coupling ag...

Embodiment 1-6

[0062] This embodiment 1-6 provides 6 kinds of flame-retardant polyolefin composite materials and their preparation methods. Among them, the six kinds of flame-retardant polyolefin composite materials respectively contain the components shown in Table 1. Their respective preparation methods are as described above in the preparation method of the flame-retardant polyolefin composite material.

[0063] Table 1

[0064]

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Abstract

The invention discloses a flame-retardant polyolefin composite material as well as a preparation method and application thereof. The flame-retardant polyolefin composite material comprises the following formula components: 20-50% of ethylene vinyl acetate, 10-30% of low-density polyethylene, 6-25% of polyethylene elastomer, 10-40% of a composite flame retardant, 0.2-1% of an antioxidant, 0.5-1.5% of a lubricant and 0.1-4% of a cross-linking agent, wherein the composite flame retardant comprises a mixture of magnesium hydroxide, calcium carbonate and frit. A resin matrix of the flame-retardant polyolefin composite material can form a three-dimensional network connection structure, and the flame-retardant polyolefin composite material is endowed with excellent impact resistance, elasticity, tear resistance and other mechanical properties and high temperature resistance. The composite flame retardant containing the mixture of the magnesium hydroxide, calcium carbonate and frit endows the polyolefin composite material with excellent flame retardant property, does not generate toxic components during combustion, and is safe and environment-friendly.

Description

technical field [0001] The invention belongs to the technical field of composite materials, and in particular relates to a flame-retardant polyolefin composite material and a preparation method and application thereof. Background technique [0002] Ethylene vinyl acetate copolymer is referred to as EVA, which has good impact resistance and stress crack resistance, flexibility, high elasticity, tear resistance, puncture resistance and low density, good electrical and chemical stability, and is compatible with fillers and flame retardants. Good compatibility, has been widely used in electrical insulation, cable jacket, packaging, packaging, corrosion protection and other fields. [0003] Flame retardancy is an important performance of polyolefin composite materials such as EVA, and it is also a key performance of polyolefin composite materials that needs to be solved and improved urgently. Since polyolefin composite materials are flammable materials, burning heat and generati...

Claims

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Application Information

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IPC IPC(8): C08L23/08C08L23/06C08K3/22C08K3/26C08K3/40
CPCC08L23/0853C08L23/06C08L2205/03C08L2201/02C08L2207/066C08L2203/20C08K2003/2224C08K2003/265C08L23/0815C08K3/22C08K3/26C08K3/40
Inventor 薛冬峰王晓明
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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