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Flame retardation type filling rope

A filling rope, flame retardant technology, applied in the direction of conductors, insulated cables, electrical components, etc., can solve the problems of poor mechanical properties, short service life, unsatisfactory, etc., achieve the effect of small smoke and improve flame retardant effect

Inactive Publication Date: 2017-09-05
中山市华子电缆有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Polypropylene is widely used as a filler for wires and cables due to its excellent mechanical properties, such as the manufacture of polypropylene filled ropes, but the current polypropylene filled ropes are flammable and will release a large amount of toxic gases during combustion. Moreover, the mechanical properties are poor, resulting in a short service life, which cannot meet the requirements of the industry

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A flame-retardant filling rope, composed of polypropylene resin (Maoming Sinopec T03), defoamer (Hongbao Plastic Chemical Technology Co., Ltd. BP608), flame-retardant masterbatch (Doher Chemical Doher-2025) in a weight ratio of 25:1 : 1 composition.

[0021] Its preparation method is:

[0022] Step 1: Under the temperature condition of 75°C, mix the polypropylene resin and the flame retardant masterbatch in the mixer according to the proportion, stir for 20 minutes, then add the defoamer, and continue to stir evenly to form a mixed material;

[0023] Step 2: Soften the mixed material in the main machine of the hot extrusion machine. The temperature in the main machine is 180-220 ° C. After that, the softened mixed material is extruded into a film through the die head of the hot extruder. The temperature is 210°C, and then it is cooled by coolant and enters the first traction;

[0024] Step 3: After blade cutting and stretching, shaping and drying, enter the second dra...

Embodiment 2

[0028] A flame-retardant filling rope, composed of polypropylene resin (Maoming Sinopec T03), defoamer (Hongbao Plastic Chemical Technology Co., Ltd. BP608), flame-retardant masterbatch (Doher Chemical Doher-2025) in a weight ratio of 25:1 : 1 composition.

[0029] Its preparation method is:

[0030] Step 1: Under the temperature condition of 75°C, mix the polypropylene resin and flame retardant masterbatch in the mixer according to the proportion, stir for 20 minutes, then add the defoamer, continue stirring for more than 15 minutes, after mixing evenly, mix the mixture The material is further placed in the hopper and mixed evenly through rotation, and the rotating speed of the hopper is 16 rpm to form a mixed material;

[0031] Step 2: Soften the mixed material in the main machine of the hot extrusion machine. The temperature in the main machine is 180-220 ° C. After that, the softened mixed material is extruded into a film through the die head of the hot extruder. The tem...

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Abstract

The invention discloses a flame-retardant filling rope, which is composed of polypropylene resin, defoaming agent, and flame-retardant masterbatch in a weight ratio of 25:1:1. Since polypropylene resin and flame retardant masterbatch are used as raw materials, on the basis of ensuring tensile properties, the elongation rate is kept greater than 10%, and the flame retardant effect is improved. The oxygen index is greater than 28, and it will not burn in case of fire. The smoke produced when burning is small.

Description

technical field [0001] The invention relates to the field of cable filling rope manufacture, in particular to a flame-retardant filling rope. Background technique [0002] The wire and cable industry accounts for 1 / 4 of the output value of China's electrical industry. It has a wide range of applications, involving electric power, construction, communication, manufacturing and other industries, and is closely related to various sectors of the national economy. Wires and cables are also known as the "arteries" and "nerves" of the national economy. They are indispensable basic equipment for transmitting electric energy, transmitting information, manufacturing various motors, instruments, and meters, and realizing electromagnetic energy conversion. Basic products necessary in a modernized society. [0003] Polypropylene, English name: Polypropylene, referred to as polypropylene, is a thermoplastic resin made by polymerizing propylene. Polypropylene is widely used as a filler f...

Claims

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Application Information

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IPC IPC(8): H01B7/18H01B7/295H01B13/22
CPCH01B7/1895H01B7/295H01B13/22
Inventor 桑梓华
Owner 中山市华子电缆有限公司
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