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A kind of halogen-free flame-retardant thermoplastic polyester elastomer nanocomposite material and preparation method thereof

A nano-composite material and thermoplastic polyester technology, which is applied in the field of halogen-free flame retardant thermoplastic polyester elastomer nano-composite materials, can solve the problem that halogen-containing flame retardants are harmful to the environment, the physical properties of materials are poor, and the addition of inorganic flame retardants To solve the problem of high quantity, to achieve excellent flame retardant properties and mechanical properties, improve mechanical properties, overcome the effects of poor compatibility

Active Publication Date: 2017-03-15
合肥安聚达新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a halogen-free flame-retardant thermoplastic polyester elastomer nanocomposite material and its preparation method to overcome the environmental hazards of halogen-containing flame retardants and the addition of inorganic flame retardants in the existing material modification technology. Disadvantages such as high quantity and poor physical properties of materials

Method used

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  • A kind of halogen-free flame-retardant thermoplastic polyester elastomer nanocomposite material and preparation method thereof
  • A kind of halogen-free flame-retardant thermoplastic polyester elastomer nanocomposite material and preparation method thereof
  • A kind of halogen-free flame-retardant thermoplastic polyester elastomer nanocomposite material and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Prepare the raw materials according to the formulas of proportions 1 to 4 given in Table 1, and prepare the dried thermoplastic polyester elastomer, aluminum hypophosphite, polyphenylene ether, 4,4'-diphenylmethane diisocyanate , montmorillonite, dibutyltin dilaurate, tetrakis[β-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate] pentaerythritol ester, calcium stearate, mix well and heat to 210°C , through melt blending, and then through extrusion, drawing, cooling, pelletizing and drying, the halogen-free flame-retardant thermoplastic polyester elastomer nanocomposite material of the present invention is obtained.

[0021] Sample bars for oxygen index test, vertical combustion test and tensile strength test were injected by injection molding machine for combustion and mechanical performance tests. The oxygen index test is carried out according to the national standard ASTM D2863, the vertical burning test is carried out according to the international standard ASTM D2863, a...

Embodiment 2

[0028] Prepare materials according to each formula of proportioning 5 to proportioning 8 given in Table 2 respectively, dry thermoplastic polyester elastomer, magnesium hypophosphite, polyphenylene sulfide, silicon dioxide, methyl tin maleate , toluene-2,4-diisocyanate, tris(2,4-di-tert-butylphenyl) phosphite, and silicone powder are mixed evenly, heated to 218°C, melted and blended, and then extruded and drawn , cooling, pelletizing and drying to obtain the halogen-free flame-retardant thermoplastic polyester elastomer nanocomposite material of the present invention.

[0029] Sample bars for oxygen index test, vertical combustion test and tensile strength test were injected by injection molding machine for combustion and mechanical performance tests. The oxygen index test is carried out according to the national standard ASTM D2863, the vertical burning test is carried out according to the international standard ASTM D2863, and the tensile strength test is carried out accordi...

Embodiment 3

[0036] Prepare materials according to each formula of proportioning 9 to proportioning 12 given in Table 3 respectively, dry thermoplastic polyester elastomer, zinc hypophosphite, polycarbonate, mica, triphenyl phosphite, 1,6 - Hexamethylene diisocyanate, pentaerythritol tetrakis (3-n-dodecyl thiopropionate), and ethylene bis stearic acid amide are mixed uniformly, heated to 225 ° C, melted and blended, and then extruded, drawn, Cooling, pelletizing and drying can obtain the halogen-free flame-retardant thermoplastic polyester elastomer nanocomposite material of the present invention.

[0037] Sample bars for oxygen index test, vertical combustion test and tensile strength test were injected by injection molding machine for combustion and mechanical performance tests. The oxygen index test is carried out according to the national standard ASTM D2863, the vertical burning test is carried out according to the international standard ASTM D2863, and the tensile strength test is ca...

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Abstract

The invention discloses a halogen-free flame-retardant thermoplastic polyester elastomer nano composite material and a preparation method thereof. The preparation method comprises the following steps: uniformly mixing 50.5-81.5 percent of thermoplastic polyester elastomer, 15-30 percent of halogen-free flame retardant, 1-10 percent of charring agent, 1-5 percent of reactive compatibilizer, 1-3 percent of nucleating agent, 0.1-0.5 percent of heat stabilizer, 0.1-1 percent of antioxidant and 0.3-1 percent of lubricating agent according to the total mass percentage of the composite material, heating to the temperature of 210-225 DEG C, performing melt blending, extruding, bracing, cooling, sized dicing and drying to obtain the halogen-free flame-retardant thermoplastic polyester elastomer nano composite material. The nano composite material has excellent flame-retardant property and physical performance, the defects that a halogen-containing flame retardant is high in environmental hazard, the addition amount of an inorganic flame retardant is high, the physical performance of the material is poor and the like in the conventional composite material modification technology are overcome, and the composite material has high application prospects.

Description

technical field [0001] The invention belongs to the technical field of halogen-free flame-retardant thermoplastic polyester elastomer nanocomposites, and specifically relates to a composite material containing thermoplastic polyester elastomer, halogen-free flame retardant, char-forming agent, nano synergist, reactive compatibilizer, heat stabilizer The halogen-free flame-retardant thermoplastic polyester elastomer nanocomposite material of agent, antioxidant and lubricant and its preparation method. Background technique [0002] Thermoplastic polyester elastomer (TPEE) is an engineering plastic with excellent performance. It is a block copolymer composed of polyester hard segment and polyether soft segment. It has outstanding strength and heat resistance, cold resistance, oil resistance, etc. characteristics, and can maintain the elasticity of the elastomer at low temperature, and can be used in the range of -80°C to +150°C. Among elastomers, it has the highest heat resist...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/02C08K13/02C08K3/32C08K5/29
Inventor 马丽艳时虎
Owner 合肥安聚达新材料科技有限公司
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