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Flame retardant thermal insulation polystyrene material and preparation method thereof

A technology of polystyrene, flame retardant and heat preservation, applied in the field of heat preservation materials, can solve the problems of unfavorable EPS board application, etc., and achieve the effects of increasing stability and oxidation resistance, increasing mechanical properties, and increasing smoke suppression

Inactive Publication Date: 2016-08-31
望江县精美欣钢构有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The "B1 grade EPS board" that appears on the market is made by melting the flame retardant and polystyrene particles and then making the particles into foam molding. While achieving the flame retardant effect, its thermal conductivity is as high as 0.040w / m·k , is not conducive to the application of EPS board

Method used

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  • Flame retardant thermal insulation polystyrene material and preparation method thereof

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preparation example Construction

[0022] refer to figure 1 , the preparation method of a kind of flame retardant polystyrene material that the present invention proposes, comprises the following steps:

[0023] S1. Preparation of polystyrene particles: Mix water, polyvinyl alcohol solution, and tricalcium phosphate to obtain solution A; disperse styrene and silica airgel evenly by ultrasonic, add triphenyl phosphate, and ammonium polyphosphate and mix well , add di-tert-butyl peroxide and mix to obtain solution B; mix solution A and solution B, heat up, keep stirring, cool down, wash, and air-dry to obtain polystyrene particles;

[0024] S2. Pre-foaming and curing: Take the polystyrene particles obtained in S1, adjust the vapor pressure to 0.3-0.5 MPa, keep it for 45-55s, take it out, and place it at room temperature for 20-24 hours to obtain mature particles;

[0025] S3. Foam molding: add water-soluble silicone oil to S2 to obtain mature granules, stir at a speed of 500-700r / min for 10-20min, add compound f...

Embodiment 1

[0028] A flame-retardant and heat-retaining polystyrene material, the raw materials of which include by weight: 120 parts of styrene, 200 parts of water, 120 parts of 4wt% polyvinyl alcohol aqueous solution, 3 parts of tricalcium phosphate, and 1.5 parts of triphenyl phosphate , 2.5 parts of ammonium polyphosphate, 5 parts of silica airgel, 1 part of di-tert-butyl peroxide, 4 parts of water-soluble silicone oil, 10 parts of pentane, 100 parts of compound flame retardant, 3 parts of benzenesulfonyl chloride , 6 parts of isopropyl titanate triisostearate, 20 parts of fumed white carbon black, 3 parts of rare earth stabilizer, 2 parts of Ca / Zn composite stabilizer, 5 parts of antioxidant 264;

[0029] Among them, the preparation method of the compound flame retardant is: add 15 parts of ammonium polyphosphate, 10 parts of sodium silicate, and 5 parts of montmorillonite to 70 parts of thermosetting phenolic resin in parts by weight, and stir for 3 hours at a speed of 400r / min. Obt...

Embodiment 2

[0035] A flame-retardant and heat-retaining polystyrene material, the raw materials of which include by weight: 80 parts of styrene, 400 parts of water, 80 parts of polyvinyl alcohol aqueous solution with a mass fraction of 6 wt%, 5 parts of tricalcium phosphate, and 1 part of triphenyl phosphate , 4.5 parts of ammonium polyphosphate, 2 parts of silica airgel, 3 parts of di-tert-butyl peroxide, 2 parts of water-soluble silicone oil, 18 parts of pentane, 80 parts of compound flame retardant, 6 parts of benzenesulfonyl chloride , 4 parts of isopropyl titanate triisostearate, 30 parts of fumed white carbon black, 2 parts of rare earth stabilizer, 3 parts of Ca / Zn composite stabilizer, 3 parts of antioxidant 264;

[0036] Among them, the preparation method of the compound flame retardant is: add 10 parts of ammonium polyphosphate, 7 parts of sodium silicate, and 3 parts of montmorillonite to 60 parts of thermosetting phenolic resin in parts by weight, and stir for 1 hour at a speed...

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Abstract

The invention discloses a flame retardant thermal insulation polystyrene material. The raw materials include, by weight, 80-120 parts of styrene, 200-400 parts of water, 80-120 parts of a polyvinyl alcohol solution, 3-5 parts of tricalcium phosphate, 1-1.5 parts of triphenyl phosphate, 2.5-4.5 parts of ammonium polyphosphate, 2-5 parts of silica aerogel, 1-3 parts of di-tert-butyl peroxide, 2-4 parts of water soluble silicone oil, 10-18 parts of pentane, 80-100 parts of a compound flame retardant, 3-6 parts of benzenesulfonyl chloride, 4-6 parts of isopropyl titanate triisostearate, 20-30 parts of fumed silica, 2-3 parts of a rare earth stabilizer, 2-3 parts of a Ca / Zn composite stabilizer, and 3-5 parts of an antioxidant 264. The invention also discloses a preparation method of the flame retardant thermal insulation polystyrene material. The flame retardant thermal insulation polystyrene material provided by the invention has the advantages of simple operation, convenient industrial production, high flame retardance and good thermal insulation performance.

Description

technical field [0001] The invention relates to the technical field of thermal insulation materials, in particular to a flame-retardant thermal insulation polystyrene material and a preparation method thereof. Background technique [0002] Silica airgel is one of the lightest solid nanoporous materials known in the world, with a continuous three-dimensional network structure, it has many special properties, such as ultra-low thermal conductivity, high specific surface area, low density, etc. . It can be used as an interlayer and filling layer for thermal insulation, air purification, water treatment and other functional structures, or it can be used for compounding and bonding with other materials. [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 h...

Claims

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Application Information

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IPC IPC(8): C08L25/06C08L29/04C08L61/06C08K13/02C08K3/32C08K3/34C08K3/36C08K5/523C08J9/14
CPCC08L25/06C08J9/141C08J2203/14C08J2325/06C08J2329/04C08J2425/06C08J2429/04C08K2201/014C08L29/04C08L2201/02C08L2201/08C08L2201/14C08L2203/14C08L2205/035C08L61/06C08K13/02C08K2003/323C08K3/34C08K3/346C08K3/36C08K5/523
Inventor 聂金红
Owner 望江县精美欣钢构有限公司
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