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High-toughness flame-retardant nylon material and preparation method thereof

A flame-retardant nylon and high-toughness technology, which is applied in the field of high-toughness flame-retardant nylon materials and their preparation, can solve the problems of nylon resin flame-retardant ability and poor toughness, and achieve improved mechanical properties, thermal oxygen stability, and gap Excellent impact strength effect

Inactive Publication Date: 2019-05-31
滁州斯英铂聚合材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is: to solve the technical problems of existing nylon resin flame retardant ability and poor toughness, to provide a high toughness flame retardant nylon material and its preparation method

Method used

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  • High-toughness flame-retardant nylon material and preparation method thereof

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Embodiment 1

[0024] The present embodiment provides a high-toughness flame-retardant nylon material, comprising the following components by weight: 55 parts of nylon 66, 35 parts of glass fibers, 25 parts of DOPO-based nitrogen-phosphorus flame retardants, 8 parts of primary toughening agents, 3 parts of Part of auxiliary toughening agent, 1 part of thermotropic liquid crystal polymer, 0.5 part of antioxidant; the structural formula of the DOPO-based nitrogen-phosphorus flame retardant is as follows: R is 1,4'-phenylene, the primary toughening agent is methyl methacrylate-butyl acrylate core-shell copolymer, the secondary toughening agent is polybutylene succinate, and the glass The fiber is a glass fiber surface-treated with a titanate coupling agent, and the titanate coupling agent is tris(dioctylpyrophosphoryloxy) isopropyl titanate, and the melting point of the thermotropic liquid crystal polymer is at 270°C, the antioxidant is composed of hindered phenolic antioxidant and phosphite a...

Embodiment 2

[0030] The present embodiment provides a high-toughness flame-retardant nylon material, comprising the following components by weight: 50 parts of nylon 6, 30 parts of glass fiber, 15 parts of DOPO-based nitrogen-phosphorus flame retardant, 5 parts of main toughening agent, 5 parts of part of auxiliary toughening agent, 0.5 part of thermotropic liquid crystal polymer, and 1 part of antioxidant; the structural formula of the DOPO-based nitrogen-phosphorus flame retardant is as follows: R is 4,4'-biphenylene, the primary toughening agent is a silicone-modified methyl methacrylate-butyl acrylate core-shell copolymer, and the secondary toughening agent is polybutylene succinate ester, the glass fiber is glass fiber treated with tetraoctyloxytitanium bis[bis(tridecyl phosphite)] surface, the melting point of the thermotropic liquid crystal polymer is 260°C, the antioxidant Composed of hindered phenolic antioxidants and phosphite antioxidants with a mass ratio of 3:3, the hindered ...

Embodiment 3

[0036] The present embodiment provides a high-toughness flame-retardant nylon material, comprising the following components by weight: 60 parts of nylon resin, 40 parts of glass fiber, 20 parts of DOPO-based nitrogen-phosphorus flame retardant, 10 parts of main toughening agent, 2 parts Part of auxiliary toughening agent, 0.8 part of thermotropic liquid crystal polymer, 0.7 part of antioxidant; the structural formula of the DOPO-based nitrogen-phosphorus flame retardant is as follows: R is 1,4'-phenylene, the nylon resin is nylon 66 and nylon 6 with a mass ratio of 1:1, and the main toughening agent is methyl methacrylate-butadiene-styrene core-shell copolymer The auxiliary toughening agent is polyε-caprolactone, and the glass fiber is glass fiber treated with isopropyl dioleic acid acyloxy (dioctyl phosphate acyloxy) titanate, so The melting point of the thermotropic liquid crystal polymer is 280°C, and the antioxidant is composed of a hindered phenolic antioxidant and a phos...

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Abstract

The invention relates to a high-toughness flame-retardant nylon material and a preparation method thereof. The nylon composite material comprises, by weight, 50-60 parts of nylon resin, 30-40 parts ofglass fibers, 15-25 parts of DOPO-based nitrogen and phosphorus flame retardants, 5-10 parts of main toughening agents, 2-5 parts of auxiliary toughening agents, 0.5-1 part of thermotropic liquid crystalline polymers and 0.5-1 part of antioxidants. The main toughening agents are provided with soft-core and hard-shell type core-shell copolymers, the auxiliary toughening agents are one or more of polybutylene succinate, polyepsilon-caprolactone and ethylene-vinyl acetate copolymer. The high-toughness flame-retardant nylon material is excellent in mechanical properties such as bending modulus, bending strength and notch impact strength, and the flame-retardant grade of a standard UL 94 testing product reaches V0.

Description

technical field [0001] The invention relates to a high-toughness flame-retardant nylon material and a preparation method thereof, belonging to the technical field of polymer materials. Background technique [0002] Nylon (PA) has a wide variety, including nylon PA6, nylon PA66, nylon PA1010, nylon PA12, nylon PA12 and copolymer nylon PA410, nylon PA610, etc. It is the most widely used and most sold resin among the five major engineering plastics. Nylon has excellent wear resistance, corrosion resistance and good formability, but its flame retardant ability is poor. At present, the PA flame retardants used in large amounts mainly include halogen series and inorganic metal compounds, etc., but these flame retardants There are many problems such as high price, difficult processing, high pollution, etc., and some resin materials will have poor fluidity and color deterioration. Among them, brominated small molecule flame retardants are the most used in industry, because their com...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L77/06C08L77/02C08L33/12C08L67/02C08L67/04C08L23/08C08K13/06C08K9/04C08K7/14C08K5/5313
Inventor 张斌峰董伟王兴兴
Owner 滁州斯英铂聚合材料有限公司
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