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Preparation method of high-strength flame retardant building electrical sleeve material

A technology for building electrical and threading pipes, which is applied in the field of preparation of high-strength flame-retardant building electrical threading pipe materials, which can solve the problems of poor pressure resistance and flame retardancy of threading pipes, achieve good physical and mechanical properties, and improve fire resistance Performance, elongation reversible effect

Inactive Publication Date: 2019-11-05
陈小强
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The technical problem to be solved by the present invention: Aiming at the problem of poor compressive resistance and poor flame retardancy of threading pipes in the prior art, a preparation method of high-strength flame-retardant building electrical threading pipe material is provided

Method used

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  • Preparation method of high-strength flame retardant building electrical sleeve material

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Effect test

Embodiment 1

[0032] In parts by weight, weigh 20 parts of polyvinyl chloride, 1 part of chloroprene rubber, 1 part of maleic anhydride, and 0.3 parts of sodium hydride, mix polyvinyl chloride, chloroprene rubber and maleic anhydride in a torque flow In a variable instrument, react at a temperature of 100°C and a speed of 40r / min for 1h to obtain a mixed material. Add polyvinyl chloride to the mixed material, stir for 30min at a speed of 60r / min and a temperature of 60°C, and cool to At room temperature, the main resin is obtained; the mass fraction of 50% magnesium hydroxide solution and kaolin are mixed according to the mass ratio of 5:1, and the stirring speed is 300r / min. Filter to obtain the filter residue, place the filter residue in an oven at 60°C to dry to constant weight, and cool to room temperature to obtain the filler; mix the titanate coupling agent and isopropanol evenly in a mass ratio of 1:5, To obtain the modifier, mix the filler and the modifier at a mass ratio of 1:3, st...

Embodiment 2

[0034] In parts by weight, weigh 25 parts of polyvinyl chloride, 5 parts of neoprene, 2 parts of maleic anhydride, and 0.4 parts of sodium hydride, mix polyvinyl chloride, neoprene and maleic anhydride in a torque rheological In the instrument, react at a temperature of 103°C and a speed of 45r / min for 1.5h to obtain a mixed material. Add polyvinyl chloride to the mixed material, stir for 35in at a speed of 65r / min and a temperature of 65°C, and cool to At room temperature, the main resin is obtained; the mass fraction of 50% magnesium hydroxide solution and kaolin are mixed according to the mass ratio of 5:1, and the stirring speed is 350r / min. Filter to obtain the filter residue, place the filter residue in an oven at 65°C to dry to constant weight, and cool to room temperature to obtain the filler; mix the titanate coupling agent and isopropanol evenly in a mass ratio of 1:5, To obtain the modifier, mix the filler and the modifier at a mass ratio of 1:3, stir at a constant ...

Embodiment 3

[0036] In parts by weight, weigh 30 parts of polyvinyl chloride, 10 parts of neoprene rubber, 3 parts of maleic anhydride, and 0.5 parts of sodium hydride, mix polyvinyl chloride, neoprene rubber and maleic anhydride in a torque flow In a variable instrument, react at a temperature of 105°C and a speed of 50r / min for 2h to obtain a mixed material. Add polyvinyl chloride to the mixed material, stir for 40min at a speed of 70r / min and a temperature of 70°C, and cool to At room temperature, the main resin is obtained; the mass fraction of 50% magnesium hydroxide solution and kaolin are mixed according to the mass ratio of 5:1, and the stirring speed is 400r / min. Filter to obtain the filter residue, place the filter residue in an oven at 70°C to dry to constant weight, and cool to room temperature to obtain the filler; mix the titanate coupling agent and isopropanol evenly at a mass ratio of 1:5, To obtain the modifier, mix the filler and the modifier at a mass ratio of 1:3, stir ...

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Abstract

The invention relates to a preparation method of a high-strength flame -retardant building electrical sleeve material, and belongs to the technical field of electrical sleeves. In the invention, chloroprene rubber is used to modify polyvinyl chloride in order to form a main body resin, magnesium hydroxide is intercalated into kaolin in order to form a filler, the filler is surface-treated with a silane coupling agent, and then is compounded with the main body resin, and a dispersant, a stabilizer and other additives are added to prepare the high-strength flame retardant building electrical sleeve material; the chloroprene rubber has a high tensile strength, a high elongation, a reversible crystallinity and a good adhesion; and the chloroprene rubber and polyvinyl chloride form a bicontinuous phase, and form an interpenetrating network structure in the material, the network material greatly deforms and consumes energy under the action of an external force the network structure in orderto achieve the toughening effect, the rubber network can transmit, disperse, buffer and absorb energy under the action of the external force, and the rubber deformation displays a high elongation at break, so the impact resistance of the material is greatly improved.

Description

technical field [0001] The invention relates to a preparation method of a high-strength flame-retardant building electrical threading pipe material, which belongs to the technical field of electrical pipe materials. Background technique [0002] With the rapid development of urbanization in our country, a large number of farmers have moved from rural areas to cities and towns, which has led to the rapid development of my country's tertiary industry. Construction of many public gathering places such as hotels, restaurants, shopping malls, large supermarkets, libraries, and singing and dancing entertainment venues. The power supply lines in these public gathering places have two types: open laying and concealed laying. The open laying lines are mainly laid on the ceiling and in the floor. , but there are many flammable and combustible materials in the ceiling and floor, so it is necessary to use threading pipes to protect the internal lines, otherwise, a short circuit will cause...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/06C08L11/00C08K13/06C08K9/04C08K3/22C08K3/34
CPCC08K2003/2224C08L27/06C08L2203/18C08L11/00C08K13/06C08K9/04C08K3/22C08K3/346
Inventor 陈小强
Owner 陈小强
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