Flame-retardant flexible polyvinyl chloride plastic and preparation method thereof

A technology of polyvinyl chloride and polyvinyl chloride resin, applied in the field of plastics, which can solve the problems of poor mechanical properties of polyvinyl chloride plastics, toxicity of organic flame retardants, and large application limitations, so as to improve the blending effect and stability properties, reduce the effect of mechanical strength decline

Active Publication Date: 2022-06-28
NANJING ZHONGCHAO NEW MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the compatibility of inorganic flame retardants with polyvinyl chloride systems is poor, which easily deteriorates the mechanical properties of polyvinyl chloride plastics
Although organic flame retardants have good compatibility with polyvinyl chloride systems, their application is limited due to the toxicity of organic flame retardants.

Method used

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  • Flame-retardant flexible polyvinyl chloride plastic and preparation method thereof
  • Flame-retardant flexible polyvinyl chloride plastic and preparation method thereof
  • Flame-retardant flexible polyvinyl chloride plastic and preparation method thereof

Examples

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preparation example 1

[0042] A flame retardant, comprising a mixture formed by grafting nitrile rubber with magnesium hydroxide; and the mixture formed by grafting nitrile rubber with magnesium hydroxide comprises the following raw materials:

[0043] Butadiene 22kg, acrylonitrile 14kg, magnesium sulfate solution 3kg, sodium hydroxide solution 7kg, acrylic acid 3kg, emulsifier 1kg, activator 0.03kg, oxygen scavenger 0.02kg, initiator 0.02kg, water 49.93kg;

[0044] Wherein the mass concentration of magnesium sulfate solution is 10%, and the mass concentration of sodium hydroxide is 10%;

[0045] The emulsifier is fatty acid soap;

[0046] The activator is ethylenediaminetetraacetic acid;

[0047] The initiator is dicumyl hydrogen peroxide.

[0048] The preparation method of the flame retardant comprises the following steps:

[0049] (1) mixing magnesium sulfate solution and sodium hydroxide solution at a temperature of 40 ℃, and obtaining magnesium hydroxide prefabricated solution after reaction...

preparation example 6

[0056] The difference between this preparation example and preparation example 1 is that the mass concentration of the magnesium sulfate solution is 15%.

preparation example 7

[0058] The difference between this preparation example and preparation example 1 is that the mass concentration of sodium hydroxide is 20%.

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Abstract

The invention relates to the technical field of plastics, and particularly discloses a flame-retardant flexible polyvinyl chloride plastic and a preparation method thereof. The flame-retardant flexible polyvinyl chloride plastic comprises the following raw materials in parts by mass: 80-100 parts of polyvinyl chloride resin, 15-20 parts of a flame retardant, 0.1-0.5 part of an antioxidant, 30-50 parts of a plasticizer, 3-7 parts of a stabilizer, 10-20 parts of a filler and 0-5 parts of other auxiliaries, wherein the flame retardant comprises a mixture formed by grafting nitrile rubber with magnesium hydroxide. The flame-retardant flexible polyvinyl chloride plastic prepared by the invention not only has excellent flame retardant performance, but also has better flexibility.

Description

technical field [0001] The present application relates to the technical field of plastics, and more particularly, to a flame-retardant flexible polyvinyl chloride plastic and a preparation method thereof. Background technique [0002] Polyvinyl chloride is a thermoplastic. Because of its good fire resistance and heat resistance, it is widely used in many fields, including cable sheathing, optical fiber sheathing, packaging bags, billboards, building decoration supplies, auxiliary medical supplies, gloves , Cling wrap for certain foods, etc. [0003] Among them, the application of polyvinyl chloride in the field of cables is relatively mature. Since the cable sheath needs polyvinyl chloride plastic with good flexibility, it is necessary to add plasticizer in the preparation process of polyvinyl chloride plastic, so as to make the softness of polyvinyl chloride more flexible. Complies with cable sheathing standards. However, with the addition of plasticizers, the thermal sta...

Claims

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Application Information

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IPC IPC(8): C08L27/06C08L51/10C08K3/34C08K3/26C08F292/00C08F236/12
CPCC08L27/06C08F292/00C08F236/12C08L2201/02C08L51/10C08K3/346C08K3/26C08F220/44
Inventor 白帆杨培杰孙成邓杰
Owner NANJING ZHONGCHAO NEW MATERIALS
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