Polyether, polyurethane thermoplastic elastomer

A thermoplastic elastomer and polyurethane technology, applied in the field of polyurethane thermoplastic elastomer and polyether, can solve the problems of product appearance and feel old, flammable, poor physical properties, etc., achieve excellent physical properties, change processing performance, and delicate hand feeling Effect

Inactive Publication Date: 2008-04-02
安徽硕冠电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is that the sheath raw materials commonly used in existing electric wires and cables have poor physical properties, no temperature resistance, no weather resistance, no wear resistance, no environmental protection (high heavy metal content), easy aging, Combustible, poor processability, product appearance and feel old and many other problems, to provide a new type of high-performance thermoplastic modified polyether, polyurethane elastomer

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] 1. React trimethylolpropane and macromolecular phosphate at a ratio of 1:0.05-1:0.15, and react with the reaction ax at a temperature of 50°C-70°C for 1-3 hours, and add an appropriate amount of two Benzene diisocyanate and 1,4-butanediol are subjected to a secondary reaction for 4-6 hours, the polymer is cooled, cut and dehydrated at a temperature of 90°C-110°C for 2-4 hours, and the moisture content should be ≤0.02 %.

[0023] 2. Mix the polymer with 1:0.08 ethylene-butadiene-styrene copolymer, 1:0.05 triphenyl phosphate polymer, 1:0.03 vinyl alcohol polymer, 1:0.01 polyolefin base, 1:0.002 tetraerythritol Ester, 1: 0.0042-hydroxyl-4-n-octyloxybenzophenone three, 1: 0.00152-methyl-4-isothiazoline, 1; 0.0015 quaternary ammonium salt compound and high-speed mixer closed and heated to 40°C-60°C, high-speed mixing for 30 minutes-60 minutes.

[0024] 2. Preheat the extruder with a diameter of 90mm-120mm and an aspect ratio of 24mm:26mm. The temperature is set at: 170°C t...

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Abstract

A polyether and polyurethane thermoplastic elastomer is prepared through the following steps: 1) the trimethylolpropane and macromolecule phosphate react at a temperature between 50 DEG C and 70 DEG C according to a ratio of from (1 to 0.05) to (1 to 0.15); 2) the diphenylmethane diisocyanate and 1, 4-butanediol are added for secondary reaction, and the prepared polymer is cooled, cut, dehydrated and dried; 3) the polymer, ethylene-butadiene-styrene copolymer, triphenyl phosphate ester polymer, vinyl alcohol polymer, polyolefin base, four-pentaerythritol ester, 2-hydroxy-4-octanoxy-benzophenone, 2-methyl-4-isothiazolone and quarter ammonia salt compound are added into a high-speed mixer and are mixed for 30 minutes to 60 minutes; 4) the mixed materials are added into an extruder for preheat, melting, plasticization, molding and extrusion; 5) the extruded polymer is cooled, cut and dried to get the product. The present invention has the outstanding physical properties, environmental protection and flame resistance; the whole production process has no 'three-waste' emission.

Description

technical field [0001] The invention relates to a polyether and polyurethane thermoplastic elastomer used for making flame-retardant wires and cable sheaths, belonging to the technical fields of chemical industry and plastics. Background technique [0002] At present, more than 95% of the wires and cables in the world use polyvinyl chloride (PVC) as the sheath material, and wires and cables, as the main conduction material of electric energy, occupy an important position in the global human production, life and economic development. . [0003] With the development of the global economy and the increasing awareness of human living standards and safety and environmental protection, the demand for green, environmentally friendly, safe and healthy new products and new materials is becoming stronger and stronger. Because polyvinyl chloride (PVC) and other existing wire and cable sheath materials contain various harmful heavy metals such as bromine, lead, mercury, cadmium, and he...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/08C08K5/47B29C47/92C08L23/08C08L85/02C08L29/04C08K5/10B29C48/92
Inventor 陆大威
Owner 安徽硕冠电子科技有限公司
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