Method for preparing flame retardant from natural brucite and application of flame retardant in cable compound

A flame retardant and natural water technology, applied in the field of flame retardants, can solve problems such as poor stability, large decline in mechanical properties of cable materials, and poor compatibility

Inactive Publication Date: 2013-04-17
大连亚泰科技新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, there are problems such as poor compatibility and poor stability between the magnesium hydroxide added in large quantities and the matrix resin, which can lead to a large decline in the mechanical properties of the prepared cable material. Therefore, it is necessary to prepare a modified, compounded The method of brucite-based special flame retardant for cable materials has become a hot issue in current research and development

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Take 3.6KG of stearic acid, and add 100KG of magnesium hydroxide powder prepared by the ore method with an average particle size of 5 μm into a high-speed mixer and mix evenly, add 35KG of sodium tripolyphosphate, 80KG of zinc borate, and stir at a speed of 700r / min, the temperature is 85 DEG C under the condition of modification for 40min, the material is discharged for standby, and the special flame retardant for cable material of the present invention is obtained.

[0032] 35 parts by weight of high-density polyethylene HDPE and 65 parts by weight of ethylene-vinyl acetate copolymer EVA are evenly blended, and 20 parts of the special flame retardant for cable materials of the present invention, 15 parts of zinc borate, and 10 parts of dioctyl adipate are added. 10 parts of calcium-zinc composite stabilizer, 1 part of paraffin, 5 parts of trimethylolpropane trimethacrylate and other ingredients, mixed at room temperature, high-speed kneading at 80-110 ° C, and then pu...

Embodiment 2

[0034] Take 1KG silane coupling agent KH550, dissolve it in 5KG ethanol aqueous solution (ethanol content is 80% by volume), and add it to the high-speed mixer together with 100KG magnesium hydroxide powder prepared by the ore method with an average particle size of 5 μm. Sodium tripolyphosphate 35KG, zinc borate 80KG, at a stirring speed of 700 r / min, the temperature is modified 40min under the condition of 85 ℃, and the discharge is standby to prepare the special flame retardant for cable material of the present invention. The elongation, smoke density SDR value and oxygen index measurement results are shown in Table 1.

[0035] 45 parts by weight of high-density polyethylene HDPE and 55 parts by weight of ethylene-vinyl acetate copolymer EVA are evenly blended, and 25 parts of special flame retardant for cable materials of the present invention, 15 parts of zinc borate, and 10 parts of dioctyl adipate are added. 10 parts of calcium-zinc composite stabilizer, 1 part of paraf...

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Abstract

The invention relates to a method for preparing a flame retardant and the application of the flame retardant, in particular to a method for preparing the flame retardant from natural brucite and the application of the flame retardant in a cable compound, and belongs to the field of flame retardants. The method comprises the following steps: adopting the natural brucite as a raw material, modifying the natural brucite by a surface modifier to manufacture modified brucite, taking the modified brucite as a raw material to prepare the flame retardant, and taking the flame retardant as a raw material to prepare the cable compound. The problem that the mechanical property of the prepared cable compound is largely reduced, which is caused by that the compatibility between magnesium hydroxide and matrix resin is bad, and the stabilities of magnesium hydroxide and matrix resin are poorer is avoided.

Description

technical field [0001] The invention relates to a method for preparing a flame retardant and its application, in particular to a method for preparing a flame retardant from natural brucite and its application in cable materials, belonging to the field of flame retardants. technical background [0002] With the rapid development of science and technology, fires are also increasing. Therefore, the fire safety standards at home and abroad are becoming increasingly stringent. The amount of flame retardants that follow is also constantly developing. At present, flame retardants have become important raw materials in the fields of plastics and rubber; among them, flame retardants are widely used in products such as wires and cables, and products such as wires and cables are widely used in various industries. The requirements are also very high. Therefore, various countries are actively developing high-efficiency flame retardants for high temperature resistance and smoke suppres...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08K9/04C08K9/06C08K9/02C08K3/22C08L23/08C08L23/06H01B3/44C08K13/06C08K3/38C08K5/11C08K5/103
Inventor 孙忠祥
Owner 大连亚泰科技新材料股份有限公司
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