Preparation of organic-inorganic composite foam material

A technology of inorganic composite and foamed materials, applied in other chemical processes, chemical instruments and methods, etc., can solve the problems of secondary disasters, emission of toxic and corrosive gases, and large combustion fumes.

Inactive Publication Date: 2008-10-22
SHANGHAI BOTAO ENVIRONMENT PROTECTION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For a long time, the halogen-containing flame retardant system has occupied the main position, but due to the shortcomings that the halogen-containi

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Add 200g of deionized water into a 500mL reaction bottle, add 0.4g of tricalcium phosphate (TCP) and 0.1g of PVA under stirring, mix 130g of styrene with 0.4g of white oil, 0.4g of polyethylene wax, 0.1g of DCP and 0.3g of BPO, 5g expanded graphite powder and 0.04g Al51, 0.06g stearic acid are added in the reaction flask. Heat up to 90°C, quickly add 9 grams of pentane after polymerization for 4 hours, slowly raise the temperature to 100°C, and react for 2 hours to obtain composite expandable beads. The thermal conductivity of the plate after steam foaming is 0.031W / (m K), the oxygen index is 28.

Embodiment 2

[0023] Repeat Example 1, but replace the expanded graphite with 2500 mesh fly ash, the thermal conductivity of the composite foamed sheet obtained is 0.033W / (m·K), and the oxygen index is 29.

Embodiment 3

[0025] Repeat Example 1, but replace the expanded graphite with the former powder of montmorillonite, the thermal conductivity of the composite foamed board obtained is 0.035W / (m·K), and the oxygen index is 28.

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Abstract

The invention relates to a method for making an organic-inorganic composite expanded material. 100 to 5000 of target inorganic powder is added into an organic allyl monomer and is mixed with an evocating agent and an addition agent, suspension polymerization is realized in the mixture for 2 to 8 hours at certain temperature, 0.5 to 8 percent of the weight of the allyl monomer of pentane is added and is polymerized continuously at a temperature higher than 90 DEG C and the organic-inorganic composite particles are obtained. The expanded organic-inorganic composite particles form a composite material with good thermal insulation property and good flame retardant property.

Description

technical field [0001] The invention belongs to the fields of organic-inorganic composite materials, material surfaces and interfaces, polymer chemistry and polymer physics, and relates to the suspension polymerization of organic vinyl monomers in the water phase in the presence of foaming agents and auxiliary agents to obtain polymers, and at the same time After uniform compounding with inorganic powder during polymerization, an organic-inorganic composite bead-shaped foamable material is formed. Background technique [0002] With the development of economy and society, higher requirements are put forward for sustainable development. Saving resources and protecting the environment has become the consensus of human beings, and energy saving and consumption reduction has become one of the practical actions of human beings. With the improvement of people's living standards, the living conditions and environment have been improved accordingly. With the improvement of energy-s...

Claims

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Application Information

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IPC IPC(8): C08F2/18C08F2/44C08F4/34C08F10/00C08K5/56C08J9/00C08L23/00C09K3/18C09K21/14C08K3/00
Inventor 陈卫
Owner SHANGHAI BOTAO ENVIRONMENT PROTECTION SCI & TECH
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