Heat insulation material with good flame resistance and high mechanical strength, and preparation method thereof

A technology of mechanical strength and thermal insulation materials, applied in the field of thermal insulation materials, can solve problems such as increased thermal conductivity, reduced thermal insulation performance, and reduced mechanical strength, and achieves the effects of increasing smoke suppression, increasing thermal insulation performance, and increasing mechanical properties

Inactive Publication Date: 2016-09-14
望江县精美欣钢构有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the addition of flame retardants, the mechanical strength of polystyrene thermal insulation foam will gradually decrease, and its thermal conductivity will gradually increase, and its thermal insulation performance will gradually decrease.

Method used

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  • Heat insulation material with good flame resistance and high mechanical strength, and preparation method thereof

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preparation example Construction

[0023] refer to figure 1 , a kind of preparation method that the present invention proposes the thermal insulation material with good flame retardancy and high mechanical strength, comprises the following steps:

[0024] S1. Preparation of polystyrene mature particles: mix polyvinyl alcohol aqueous solution and sodium tripolyphosphate uniformly to obtain solution A; disperse styrene and silica airgel evenly by ultrasonic, add 5wt% complex compound based on styrene weight Mix with flame retardant, add benzoyl peroxide and mix to obtain solution B; mix solution A and solution B, heat up, keep stirring, cool down, filter, wash, air-dry, pre-foam and mature to obtain polyphenylene Ethylene cured granules;

[0025] S2, preparation of mixed resin material: phenolic resin, methyl vinyl MQV silicone resin, polyethylene glycol, lauryl alcohol, remaining compound flame retardant, rare earth stabilizer, Ca / Zn compound stabilizer, bis(dioctyl alcohol) Oxypyrophosphate) ethylene titanate...

Embodiment 1

[0029] A thermal insulation material with good flame retardancy and high mechanical strength, its raw materials include: 80 parts by weight of styrene, 5 parts of silica airgel, 300 parts of 2wt% polyvinyl alcohol aqueous solution, sodium tripolyphosphate 4 parts, benzoyl peroxide 3 parts, phenolic resin 55 parts, methyl vinyl MQV silicone resin 35 parts, polyethylene glycol 7 parts, lauryl alcohol 6 parts, diaminocyclohexane 17 parts, cyclopentane 20 parts , 30 parts of compound flame retardant, 2 parts of rare earth stabilizer, 2 parts of Ca / Zn composite stabilizer, 2 parts of dicumyl peroxide, 2 parts of stearic acid, 2 parts of zinc oxide, bis(dioctyl oxide 3 parts of base pyrophosphate groups) ethylene titanate, 3 parts of antioxidant 1076;

[0030]Among them, the preparation method of the compound flame retardant is as follows: add expandable graphite to an aqueous ethanol solution with a mass fraction of 85 wt%, disperse evenly by ultrasonic, add 3-aminopropyltriethoxys...

Embodiment 2

[0036] A thermal insulation material with good flame retardancy and high mechanical strength, its raw materials include: 120 parts of styrene, 3 parts of silica airgel, 100 parts of polyvinyl alcohol aqueous solution with a mass fraction of 5 wt%, sodium tripolyphosphate 6 parts, benzoyl peroxide 1 part, phenolic resin 65 parts, methyl vinyl MQV silicone resin 20 parts, polyethylene glycol 9 parts, lauryl alcohol 2 parts, diaminocyclohexane 27 parts, cyclopentane 12 parts 40 parts of compound flame retardant, 1 part of rare earth stabilizer, 4 parts of Ca / Zn composite stabilizer, 1 part of dicumyl peroxide, 4 parts of stearic acid, 1 part of zinc oxide, bis(dioctyl oxide base pyrophosphate) 5 parts of ethylene titanate, 1 part of antioxidant 1076;

[0037] Among them, the preparation method of the compound flame retardant is: adding expandable graphite to an aqueous ethanol solution with a mass fraction of 95% by weight, ultrasonically dispersing it evenly, adding 3-aminopropy...

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Abstract

The invention discloses a heat insulation material with good flame resistance and high mechanical strength. The heat insulation material comprises, by weight, 80-120 parts of styrene, 3-5 parts of aerosil, 100-300 parts of an aqueous solution of polyvinyl alcohol, 4-6 parts of sodium tripolyphosphate, 1-3 parts of benzoyl peroxide, 55-65 parts of phenolic resin, 20-35 parts of methylvinyl MQV silicone resin, 7-9 parts of polyethylene glycol, 2-6 parts of laurinol, 17-27 parts of diaminocyclohexane, 12-20 parts of cyclopentane, 30-40 parts of a compound flame retardant, 1-2 parts of a rare earth stabilizer, 2-4 parts of a Ca / Zn composite stabilizer, 1-2 parts of dicumyl peroxide, 2-4 parts of stearic acid, 1-2 parts of zinc oxide, 3-5 parts of bis(P,P-bis-ethylhexyl diphosphato)ethanediolato titanate and 1-3 parts of an antioxidant 1076. The invention also discloses a preparation method of the heat insulation material with good flame resistance and high mechanical strength. The heat insulation material has the advantages of good flame resistance, high heat insulation performance and high mechanical performances.

Description

technical field [0001] The invention relates to the technical field of thermal insulation materials, in particular to a thermal insulation material with good flame retardancy and high mechanical strength and a preparation method thereof. Background technique [0002] Methyl vinyl MQV silicone resin is a new type of silicone polymer material whose molecules are composed of Si-O bonds. Thanks to its long-chain spherical molecular structure, it endows it with good mechanical properties and high and low temperature resistance. Electrical insulation, moisture-proof, waterproof and other excellent properties. [0003] Polystyrene (EPS) foam insulation has the advantages of low water absorption, small bulk density, good thermal insulation performance, good mechanical strength and toughness, excellent dielectric properties, corrosion resistance, easy molding and high productivity, and has been widely used in thermal insulation systems , but polystyrene is flammable, which limits th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L29/04C08L25/06C08L61/06C08L83/07C08K13/06C08K9/06C08K7/24C08K3/22C08K3/36C08J9/14
CPCC08J9/141C08J2203/14C08J2325/06C08J2329/04C08J2425/06C08J2429/04C08L25/06C08L29/04C08L2201/02C08L2201/08C08L2201/14C08L2203/14C08L2205/035C08L61/06C08L83/04C08K13/06C08K9/06C08K7/24C08K2003/2224C08K3/36
Inventor 聂金红
Owner 望江县精美欣钢构有限公司
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