Crosslinked high flame-retardant foamed polyvinyl chloride modified material
A technology of polyvinyl chloride and modified materials, used in plastic/resin/wax insulators, organic insulators, conductors, etc., can solve the problems of high cost and difficult to achieve, and achieve high temperature resistance, improve electrical performance, and improve The effect of high temperature resistance
Inactive Publication Date: 2013-05-01
宁波西尼尔新材料有限公司
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Problems solved by technology
However, one of the cable materials of these two inventions is not a technical solution specially provided for the requirements of the national standard GB / T8815-2002, but is a suitable product for some special occasions such as ultraviolet protection, extreme cold and other environments. In addition, its cost are more expensive
[0004] In addition, some high-voltage resistance indicators and flame-retardant indicators of cables and electrical high-voltage products are usually a pair of contradictory requirements in the same product. At the same time, it is difficult to meet the requirements of high flame retardancy
Method used
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[0013] Below in conjunction with embodiment the present invention is described in further detail.
[0014] 1. The preparation process of the cross-linked highly flame-retardant foamed polyvinyl chloride modified material in the embodiment of the present invention is as follows:
[0015] Prepare raw materials according to the proportion of ingredients, first add polyvinyl chloride resin powder, polyester plasticizer, halogen-free flame retardant, crosslinking agent, calcium zinc heat stabilizer into the mixer and stir at high speed for about 10 minutes, until the material temperature is 80 °C, Then add chlorinated polyvinyl chloride resin and stir at high speed for about 2 minutes to 100°C material temperature, and finally add talcum powder, polyethylene PE and foaming agent and stir at high speed for about 8 minutes, and then discharge to 150-type twin-screw when the material temperature reaches 100°C Extruder for plastic granulation. The screw temperature of the extruder fro...
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Abstract
The invention discloses a crosslinked high flame-retardant foamed polyvinyl chloride modified material. The material comprises the following components in part by weight: 100 parts of polyvinyl chloride resin, 30 to 100 parts of nano talcpowder, 50 to 80 parts of high-temperature resistant polyester plasticizer, 20 to 100 parts of chlorinated polyvinyl chloride resin, 20 to 100 parts of polyethylene, 30 to 100 parts of halogen-free flame retardant, 5 to 20 parts of calcium zinc thermal stabilizer, 20 to 60 parts of cross linker and 10 to 40 parts of foaming agent. The material has excellent high-temperature resistance, high flame-retardant performance and excellent high-voltage electric resistance, and is particularly suitable to be used as a cable material with high flame-retardant requirement and used for a product shell.
Description
technical field [0001] The invention relates to a cross-linked highly flame-retardant foamed polyvinyl chloride modified material, in particular to a polyvinyl chloride modified material used in foamed high flame-retardant and high-voltage-resistant wire and cable sheathing materials and foamed high-flame-retardant product shells. Vinyl modified material. Background technique [0002] PVC cable material is a common cable material, and different use environments have different requirements for PVC cable material. Polyvinylchlorid (PVC), the main component is polyvinyl chloride, PVC can be divided into soft PVC and hard PVC. Among them, hard PVC accounts for about 2 / 3 of the market, and soft PVC accounts for 1 / 3. In addition, polyvinyl chloride is mainly used to produce soft plastic products such as artificial leather, film, and wire sheathing, as well as hard plastic products such as plates, doors and windows, pipes, and valves. The embrittlement temperature of the current...
Claims
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IPC IPC(8): C08L27/06C08L27/24C08L23/06C08K13/02C08K3/34C08J9/10H01B3/44H01B7/295
Inventor 林敏刚
Owner 宁波西尼尔新材料有限公司