Polishing slag modified PVC flame-retardant electric insulation rubber mat

A technology of polishing slag and electrical insulation, which is applied in the field of electrical insulation rubber sheets, can solve the problems of increasing the amount of flame retardants added, decreasing the oxygen barrier index, and high production costs, so as to achieve good flame retardancy, improve flame retardancy, and reduce production costs Effect

Pending Publication Date: 2020-04-28
林铭昭
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, in the prior art, during the processing of PVC elastomer flame-retardant materials, flammable plasticizers are added to greatly reduce the oxygen barrier index, which reduces the flame-retardant properties of PVC elastomer flame-retardant materials.
In order to meet the flame retardant requirements, it is necessary to increase the amount of high-priced flame retardants added in the formula, resulting in high production costs

Method used

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  • Polishing slag modified PVC flame-retardant electric insulation rubber mat
  • Polishing slag modified PVC flame-retardant electric insulation rubber mat
  • Polishing slag modified PVC flame-retardant electric insulation rubber mat

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0033] 1. Mixture:

[0034] The various raw material formulations that make up the polishing slag-modified PVC flame-retardant electrical insulating rubber pad are weighed according to the following mass fractions respectively, and set aside.

[0035]

[0036]Put the PVC resin powder into the high-speed mixer, stir at high speed for 7 minutes to dry the water; then add synthetic vegetable fatty acid ester, stir at high speed for 5-10 minutes; then add the rest of the raw materials, stir at low speed for 3 minutes; In the mixing machine, stir for another 10 minutes, discharge the material after cooling, and prepare the polishing slag modified PVC flame-retardant electrical insulation rubber pad compound.

[0037] 2. Extrusion:

[0038] Put the mixture into the twin-screw extruder. The temperature of each zone of the extruder is: zone 1 / 145°C, zone 2 / 160°C, zone 3 / 170°C, zone 4 / 175°C, head / 180°C, through the hanger The film is extruded by the type head die, and the thicknes...

Embodiment approach 2

[0043] 1. Mixture:

[0044] The various raw material formulas that make up the PVC flame-retardant electrical insulation rubber pad are weighed according to the following mass fractions respectively, and set aside.

[0045]

[0046] Put the PVC resin powder into the high-speed mixer, stir at high speed for 7 minutes to dry the water; then add synthetic vegetable fatty acid ester, stir at high speed for 5-10 minutes; then add the rest of the raw materials, stir at low speed for 3 minutes; In the mixing machine, stir for another 10 minutes, discharge the material after cooling, and prepare the polishing slag PVC flame-retardant electrical insulation rubber pad compound.

[0047] 2. Extrusion:

[0048] Put the mixture into the single-screw extruder, the temperature of each zone of the extruder is: zone 1 / 140°C, zone 2 / 155°C, zone 3 / 165°C, head / 175°C, and extrude through the hanger type head die Thickness of the film is determined by a three-roll calender.

[0049] 3. Cuttin...

Embodiment approach 3

[0053] 1. Mixture:

[0054] The various raw material formulations that make up the polishing slag-modified PVC flame-retardant electrical insulating rubber pad are weighed according to the following mass fractions respectively, and set aside.

[0055]

[0056] Put the PVC resin powder into the high-speed mixer, stir at high speed for 7 minutes to dry the water; then add synthetic vegetable fatty acid ester, stir at high speed for 5-10 minutes; then add the rest of the raw materials, stir at low speed for 3 minutes; In the mixing machine, stir for another 10 minutes, discharge the material after cooling, and prepare the polishing slag modified PVC flame-retardant electrical insulation rubber pad compound.

[0057] 2. Extrusion:

[0058] Put the mixture into the single-screw extruder, the temperature of each zone of the extruder is: zone 1 / 140°C, zone 2 / 155°C, zone 3 / 165°C, head / 175°C, and extrude through the hanger type head die Thickness of the film is determined by a thr...

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PUM

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Abstract

The invention discloses a polishing slag modified PVC flame-retardant electric insulation rubber mat. According to the polishing slag modified PVC flame-retardant electric insulation rubber mat disclosed by the invention, the synthetic vegetable fatty acid ester with flame retardance and polishing slag with flame retardance and smoke suppression are added into the formula, and the synthetic vegetable fatty acid ester and the polishing slag are synergistically used to generate better flame retardance and smoke suppression effects. The polishing slag modified PVC flame-retardant electric insulation rubber mat is prepared by mixing, extruding and cutting. The problems that the chlorine content of a PVC elastomer flame-retardant material is reduced and the flame-retardant property is reduced due to the addition of a large amount of small molecular plasticizers in the prior art are solved. A large amount of polishing slag is added as an inorganic flame-retardant filler, so that the production cost of the PVC flame-retardant electric insulation rubber mat is reduced, the flame retardance and smoke suppression performance of the product are improved, the problems that stone, ceramic tilesand artificial stone polishing slag is difficult to recycle and environmental pollution is caused by waste landfill are solved, and waste is turned into wealth.

Description

technical field [0001] The invention relates to the technical field of electrical insulating rubber sheets, and mainly relates to a PVC flame-retardant electrical insulating rubber pad modified by polishing slag. Background technique [0002] Polyvinyl chloride PVC has excellent corrosion resistance, electrical insulation, and high chlorine content, it will degrade and release HCI and CO when burned. 2 , CO, toluene and other gases are isolated from oxygen and have self-extinguishing properties. They are ideal materials for the production of flame-retardant electrical insulating rubber pads. But HCI, CO 2 , CO, toluene, etc. are corrosive, poisonous and harmful gases that pollute the environment and cause "secondary harm" to the human body or equipment. People's lives and properties have brought huge losses. More and more practices have proved that it is not enough to only require flame retardancy, but also must have very low smoke generation to reduce the hazards of toxi...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08K13/02C08K3/013C08K3/22C08K3/16C08K3/36C08K5/10
CPCC08K3/013C08K3/16C08K3/22C08K3/36C08K5/10C08K13/02C08K2003/166C08K2003/222C08K2003/2224C08K2003/2227C08L2201/02C08L27/06
Inventor 林广成林铭昭
Owner 林铭昭
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