Surface activation modification technology for environment-friendly magnesium hydroxide flame retardant special for insulating materials

A technology of magnesium hydroxide and insulating materials, applied in fibrous fillers, dyed organic silicon compound treatment, dyed low-molecular organic compound treatment, etc., can solve the problems of large decline in mechanical properties, large smoke generation, health and safety hazards, etc. problems, achieve high peel strength, increase specific surface area, and excellent electrical properties

Inactive Publication Date: 2012-07-11
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] At present, the flame retardant products widely used in insulating materials mainly include bromine-antimony, nitrogen-phosphorus, and inorganic series. Products containing bromine-based flame retardants release a large amount of harmful substances when burned, and the amount of smoke is large. It is extremely harmful to health and safety; and the mechanical properties of some products added with nitrogen and phosphorus flame retardants and inorganic flame retardants are greatly reduced, which seriously affects the application of products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0024] Add 3KG stearic acid, 100KG magnesium hydroxide (average particle size: 5μm), 0.5KG sodium tripolyphosphate, and 2KG zinc borate together into a high-speed mixer for surface activation modification. The stirring speed is 900 r / min, and the temperature is 105°C for 45 minutes.

[0025] Take 50 parts (parts by weight, the same below) of benzoxazine type epoxy resin (epoxy equivalent 280), 30 parts of phosphorus-containing epoxy resin, 20 parts of bisphenol A novolac epoxy resin, and 3 parts of dicyandiamide , 0.5 parts of 2-methylimidazole, 25 parts of modified magnesium hydroxide prepared by the present invention, and 20 parts of dimethylformamide are used as solvents, stirred and mixed to make glue.

[0026] Glue mixing, gluing, thermoforming, processing inspection and other processes refer to the current mature process steps in the field of laminates. Among them, the hot pressing temperature is 175°C and the pressure is 45 kg / cm 2 , The hot pressing time is 60 minute...

Embodiment approach 2

[0028] Add 1.5KG silane KH550, 100KG magnesium hydroxide (average particle size 5μm), 0.5KG sodium silicate, and 2KG zinc borate into a high-speed mixer for surface activation modification. The stirring speed is 900 r / min and the temperature is 105 ℃, the time is 45min.

[0029] Take 50 parts (parts by weight, the same below) of benzoxazine type epoxy resin (epoxy equivalent 280), 30 parts of phosphorus-containing epoxy resin, 20 parts of bisphenol A novolac epoxy resin, and 3 parts of dicyandiamide , 0.5 parts of 2-methylimidazole, 25 parts of modified magnesium hydroxide prepared by the present invention, and 20 parts of dimethylformamide are used as solvents, stirred and mixed to make glue.

[0030] Glue mixing, gluing, thermoforming, processing inspection and other processes refer to the current mature process steps in the field of laminates. Among them, the hot pressing temperature is 175°C and the pressure is 45 kg / cm 2 , The hot pressing time is 60 minutes.

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Abstract

The invention relates to a surface activation modification technology for an environment-friendly magnesium hydroxide flame retardant special for insulating materials. The flame retardant is a modified magnesium hydroxide composite flame retardant, and comprises the following components in part by weight: 80 to 95 parts of magnesium hydroxide, 1 to 10 parts of surface modifier, 0 to 5 parts of dispersing agent and 0 to 25 parts of flame-retardant aid. The environment-friendly magnesium hydroxide flame retardant is mainly applied to the field of the insulating materials, namely the application fields of laminated wood boards, copper-clad plates, insulating sleeves, insulating paper, insulating tape and the like. The environment-friendly magnesium hydroxide flame retardant belongs to a halogen-free environment-friendly product; and the prepared insulating materials have a good flame-retardant effect and an obvious smoke-inhibiting effect, and the mechanical properties and electric properties are improved.

Description

technical field [0001] The invention relates to a surface activation modification technology of an environment-friendly magnesium hydroxide flame retardant special for insulating materials, and belongs to the field of insulating materials applications. Background technique [0002] With the advancement of science and technology and the development of society, electrical appliances are more and more widely used in various fields of production and life, and the development and production of insulating materials has also become a huge industry. People's quality requirements and safety requirements for insulation products have also increased, requiring better heat resistance, mechanical properties, and electrical properties. [0003] At present, the flame retardant products widely used in insulating materials mainly include bromine-antimony, nitrogen-phosphorus, and inorganic series. Products containing bromine-based flame retardants release a large amount of harmful substances ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09C1/02C09C3/12C09C3/08C08K13/06C08K9/04C08K9/06C08K3/22C08K3/38C08K3/32C08K3/34C08L63/00C08L63/04
Inventor 孙忠祥
Owner 大连亚泰科技新材料股份有限公司
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