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Polyurethane modified polyvinyl chloride flame-retardant sheath rubber material as well as preparation method and application thereof

A technology of polyurethane modification and polyvinyl chloride, which is applied in the direction of plastic/resin/wax insulators, organic insulators, etc. It can solve the problems of complexity, mechanical properties and temperature resistance that cannot meet the needs, and achieve increased mechanical properties and superior mechanical properties. and temperature and oil resistance, the effect of prolonging the service life

Pending Publication Date: 2022-04-12
LTK INDS HUIZHOU +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the increasingly complex use scenarios of human beings, the mechanical properties and temperature resistance of the existing PVC sheath materials for industrial drag chain lines can no longer meet the needs. How to provide a new sheath compound with better mechanical properties and temperature resistance Oil resistance is a technical problem that researchers in this field need to solve

Method used

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  • Polyurethane modified polyvinyl chloride flame-retardant sheath rubber material as well as preparation method and application thereof
  • Polyurethane modified polyvinyl chloride flame-retardant sheath rubber material as well as preparation method and application thereof
  • Polyurethane modified polyvinyl chloride flame-retardant sheath rubber material as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The preparation method of embodiment 1 sheath compound, comprises the following steps:

[0028] S100, weighing and mixing each raw material according to the mass parts of the component ratio, and putting the mixture into an internal mixer for internal mixing;

[0029] S200. When the internal mixing temperature reaches 90°C and 130°C respectively, turn on the internal mixer to sweep the pot;

[0030] S300. When the banburying temperature reaches 16° C., transport the blended mixture to a twin-screw machine for extrusion and granulation to obtain a polyurethane modified polyvinyl chloride flame-retardant sheath compound.

[0031] The preparation method of the sheath compound of embodiment 1~2 and comparative example 1~7 is the same as embodiment 1.

[0032] The mechanical performance, temperature resistance performance and CMP-UL combustion performance tests were carried out on the sheath rubber materials of Examples 1-2 and Comparative Examples 1-7, and the specific res...

Embodiment 3

[0047] The polyurethane-modified polyvinyl chloride flame-retardant sheath compound comprises the following components in parts by mass: 100 parts of SG0 type polyvinyl chloride resin, 65 parts of environmentally friendly plasticizer, 20 parts of Elvaloy terpolymer, three 20 parts of antimony oxide, 10 parts of modified polyurethane, 9 parts of high-efficiency and environment-friendly calcium zinc stabilizer, and 0.5 part of lubricant.

[0048] The steps of the preparation method are the same as those in Example 1, and the test results of the physical properties of the sheath compound in Example 3 are similar to those in Example 1.

Embodiment 4

[0050] The polyurethane-modified polyvinyl chloride flame-retardant sheath compound comprises the following components in parts by mass: 100 parts of SG0 type polyvinyl chloride resin, 55 parts of environmentally friendly plasticizer, 10 parts of Elvaloy terpolymer, three 15 parts of antimony oxide, 25 parts of modified polyurethane, 7 parts of high-efficiency and environment-friendly calcium zinc stabilizer, and 0.8 parts of lubricant. The steps of the preparation method are the same as those in Example 1, and the test results of the physical properties of the sheath compound in Example 3 are similar to those in Example 1.

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Abstract

The invention belongs to the technical field of insulating rubber materials, and mainly discloses a polyurethane modified polyvinyl chloride flame-retardant sheath rubber material as well as a preparation method and application of the polyurethane modified polyvinyl chloride flame-retardant sheath rubber material. Comprising the following components in parts by weight: 100 parts of polyvinyl chloride resin, 10-25 parts of modified polyurethane, 55-65 parts of an environment-friendly plasticizer, 8-22 parts of an Elvaloy terpolymer, 10-25 parts of antimony trioxide, 6-10 parts of a calcium-zinc stabilizer and 0.1-1 part of a lubricant. According to the polyurethane modified polyvinyl chloride flame-retardant sheath rubber material disclosed by the invention, the prepared polyurethane modified polyvinyl chloride flame-retardant sheath rubber material has excellent mechanical property and temperature-resistant and oil-resistant properties by controlling the types and dosage proportions of all the components; the temperature resistance of-40 to 105 DEG C, the oil resistance of 60 DEG C, the bending resistance of 20 million times and the VW-1 combustion performance can be met at the same time.

Description

technical field [0001] The invention relates to the technical field of insulating rubber materials, in particular to a polyurethane-modified polyvinyl chloride flame-retardant sheath rubber material and its preparation method and application. Background technique [0002] The industrial towline cable is a kind of composite cable, which can prevent the wires from being entangled, worn, pulled off, hung and scattered when the equipment unit moves back and forth, and protects the wires, and the cable can also move back and forth with the towline. In order to adapt to the back and forth movement following the towline, this kind of wire usually requires the wire sheath to have high flexibility and good wear resistance. The PVC sheathing materials for industrial drag chain lines on the market usually meet the bending resistance of 2 million times and the temperature resistance level of -40°C to 80°C, or meet the bending resistance of 2 million times and the temperature resistance ...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L75/04C08L23/08C08K3/22C08K5/12H01B3/44
Inventor 林艺章陈章平李华锋范宏军
Owner LTK INDS HUIZHOU
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