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Electric wire material and preparation method thereof

A wire material and raw material technology, applied in the field of wire material and its preparation, can solve the problems of large friction coefficient, poor compatibility, rough surface, etc., and achieve the effects of reducing friction coefficient, good lubrication, enhancing flame retardancy and flexibility

Pending Publication Date: 2021-06-08
杭州卓时新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the related technologies mentioned above, due to the poor compatibility between the raw materials of the current high flame-retardant polyether thermoplastic polyurethane wire material, the surface of the wire material after extrusion molding in the later stage is rough, and there are also particles at the same time. larger

Method used

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  • Electric wire material and preparation method thereof
  • Electric wire material and preparation method thereof
  • Electric wire material and preparation method thereof

Examples

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Effect test

preparation example 1

[0057] Preparation example 1: a kind of polyurethane-organic silicon polymer masterbatch, the concrete component that comprises and weight are as shown in table 2, and its preparation method is as follows:

[0058] A1: At a temperature of 50°C, mix polyether polyol and toluene diisocyanate, under the protection of nitrogen, carry out a stirring reaction, and prepare a polyurethane prepolymer after 4 hours;

[0059] A2: At a temperature of 100°C, mix the polydimethylsiloxane, the catalyst and the polyurethane prepolymer evenly, and carry out a stirring reaction under the protection of nitrogen; after 4 hours, a polyurethane-organic silicon copolymer is obtained;

[0060] A3: Melt and extrude the polyurethane-organic silicon copolymer in a twin-screw extruder, control the temperature of each section to 100-110-120-140-150°C, the speed of the screw extruder is 100r / min, and the pressure is 60MPa and cooling in a water tank for 1 hour, removing water until there is no moisture on ...

preparation example 2

[0061] Preparation example 2: a kind of polyurethane-silicone resin polymerization masterbatch, the concrete component that comprises and weight are as shown in table 2, and its preparation method is as follows:

[0062] A1: At a temperature of 60°C, mix polyether polyol and toluene diisocyanate, under the protection of nitrogen, carry out a stirring reaction, and prepare a polyurethane prepolymer after 3 hours;

[0063] A2: At a temperature of 80°C, mix the polydimethylsiloxane, the catalyst and the polyurethane prepolymer evenly, and carry out a stirring reaction under the protection of nitrogen; after 5 hours, a polyurethane-organosilicon copolymer is obtained;

[0064] A3: Melt extrude the polyurethane-silicone copolymer, control the temperature of each section to 100-110-120-140-150°C, the speed of the screw extruder is 110r / min, and the pressure is 60MPa; and cool in the water tank for 1h and pelletizing to obtain polyurethane-organic silicon polymer masterbatch.

preparation example 3

[0065] Preparation example 3: a kind of polyurethane-organic silicon resin polymer masterbatch, the difference with preparation example 1 is that the weight of components is different, and the specific components and weights included are as shown in table 2,

[0066] Concrete composition and weight of table 2 preparation example 1-3

[0067]

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Abstract

The invention relates to the technical field of cables, and particularly discloses an electric wire material and a preparation method thereof. The electric wire material is prepared from the following raw materials in parts by weight: 50-80 parts of polyurethane, 10-16 parts of aluminum hypophosphite, 10-20 parts of melamine salt, 2-4.5 parts of polyurethane-organic silicon polymerized master batch, 0.2-1 part of an antioxidant, 0.1-1 part of an ultraviolet light absorber and 5-10 parts of a flame retardant, wherein the polyurethane is polyether type thermoplastic polyurethane, and the flame retardant comprises at least one of sepiolite powder, magnesium hydroxide and colloidal graphite powder. The preparation method of the electric wire material comprises the following steps: uniformly mixing aluminum hypophosphite, melamine salt and the flame retardant, mixing with polyurethane, the antioxidant, the ultraviolet light absorber and the polyurethane-organic silicon polymer master batch, uniformly mixing, carrying out melt extrusion, controlling the temperature at 140-190 DEG C, and pelletizing to obtain the electric wire material. The electric wire material has the advantage of small friction coefficient.

Description

technical field [0001] The present application relates to the technical field of electric cables, in particular to an electric wire material and a preparation method thereof. Background technique [0002] Plastics for wire and cable insulation and sheathing are commonly known as wire materials, including rubber, plastic, nylon and other varieties; there are many wire and cable manufacturers in my country, there are urban and rural power grid transformation, and the development and transformation of the western region. The demand for wire and cable products Therefore, the current wire materials have broad market development prospects in our country. [0003] The flame retardant performance of the wire material is very important. Once the wire catches fire, the wire material can limit the combustion to a local area without spreading, keep other various equipment, and avoid greater losses. The Chinese patent application with the publication number CN109280358A and the publicati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L75/08C08L89/00C08L23/06C08L5/04C08L5/00C08K13/02C08K3/32C08K5/3492C08K7/10C08K3/22C08K3/04C08G18/76C08G18/48C08G18/10C08G18/61
CPCC08L75/08C08G18/7614C08G18/48C08G18/10C08L2201/02C08L2205/025C08L2203/20C08L2205/035C08L2205/16C08L2205/02C08K2003/2224C08K2201/014
Inventor 毛罕文张利明王雪锋
Owner 杭州卓时新材料有限公司
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