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Composite sandwich plate

A sandwich panel and sandwich layer technology, applied in synthetic resin layered products, layered products, glass/slag layered products, etc., can solve the problem of poor flame retardant performance of composite panels, unsatisfactory flame retardant performance, and limited application. and other problems, to achieve the effects of excellent thermal insulation performance, low impact strength improvement and excellent thermal insulation performance

Inactive Publication Date: 2017-06-13
安徽城洁环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the flame retardant performance of the current polystyrene foam material is often not ideal, and the composite board made of it has the defect of poor flame retardant performance, which limits its application in some special fields

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A composite sandwich panel proposed by the present invention comprises two surface layers and a sandwich layer between the two surface layers; the surface layer is a glass fiber board with a thickness of 30 mm, and the sandwich layer is a modified polystyrene foam Plate, the thickness is 80mm;

[0016] Wherein, the raw material of described modified polystyrene foam board comprises by weight: 100 parts of expandable polystyrene, 50 parts of polyurethane, 5 parts of polycarbonate, 15 parts of carboxylated polystyrene, 1 part of talcum powder, 15 parts of diatomite, 2 parts of silica airgel, 5 parts of carbon nanotubes, 1 part of borax, 5 parts of aluminum phenyl hypophosphite, and 2 parts of modified aluminum hydroxide.

Embodiment 2

[0018] A composite sandwich panel proposed by the present invention comprises two surface layers and a sandwich layer between the two surface layers; the surface layer is a glass fiber board with a thickness of 10mm, and the sandwich layer is a modified polystyrene foam Plate, the thickness is 150mm;

[0019] Wherein, the raw material of described modified polystyrene foam board comprises by weight: 100 parts of expandable polystyrene, 20 parts of polyurethane, 15 parts of polycarbonate, 3 parts of carboxylated polystyrene, 3 parts of talcum powder, 5 parts of diatomite, 10 parts of silica airgel, 2 parts of carbon nanotubes, 2 parts of borax, 1 part of aluminum phenyl hypophosphite, 10 parts of modified aluminum hydroxide;

[0020] Wherein, the modified aluminum hydroxide is prepared according to the following process: adding hydroxyethylidene diphosphonic acid into chloroform, stirring evenly, adding triethylamine and methacryloyl chloride, raising the temperature to 80°C an...

Embodiment 3

[0022] A composite sandwich panel proposed by the present invention comprises two surface layers and a sandwich layer positioned between the two surface layers; the surface layer is a glass fiber board with a thickness of 25 mm, and the sandwich layer is a modified polystyrene foam Plate, the thickness is 100mm;

[0023] Wherein, the raw material of described modified polystyrene foam board comprises by weight: 100 parts of expandable polystyrene, 42 parts of polyurethane, 7 parts of polycarbonate, 10 parts of carboxylated polystyrene, 1.8 parts of talcum powder, 10 parts of diatomite, 5 parts of silica airgel, 4 parts of carbon nanotubes, 1.2 parts of borax, 4 parts of aluminum phenyl hypophosphite, 5.6 parts of modified aluminum hydroxide;

[0024] Wherein, the average particle diameter of the expandable polystyrene is 3mm, and the density is 20g / L;

[0025] The porosity of the silica airgel is 96%, the average pore diameter is 35nm, and the specific surface area is 350m 2...

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Abstract

The invention discloses a composite sandwich plate. The composite sandwich plate comprises two surface layers and a sandwich layer positioned between the two surface layers, wherein each surface layer is a glass fiber plate having a thickness of 10-30 mm; the sandwich layer is a modified polystyrene foam plate having a thickness of 80-150 mm; and the modified polystyrene foam plate comprises the following raw materials in parts by weight: 100 parts of expandable polystyrene, 20-50 parts of polyurethane, 5-15 parts of polycarbonate, 3-15 parts of carboxylated polystyrene, 1-3 parts of talcum powder, 5-15 parts of diatomite, 2-10 parts of silicon dioxide aerogel, 2-5 parts of carbon nanotube, 1-2 parts of borax, 1-5 parts of aluminum phenylhypophosphite and 2-10 parts of modified aluminum hydroxide. The composite sandwich plate provided by the invention has favorable warm-keeping and heat-insulating property and excellent fire resistance and flame retardancy.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a composite sandwich panel. Background technique [0002] Polymer foam materials have the advantages of light weight, high specific strength, chemical corrosion resistance, thermal insulation, sound absorption and noise reduction, shock absorption, softness, insulation, easy processing and high cost performance. At present, the most important polymer foam materials include expandable polystyrene foam, extruded polystyrene foam, polyurethane foam and polyvinyl chloride foam. Expandable polystyrene foam is a foam material formed by bonding together hard closed-cell foam particles. It has the advantages of low density, water resistance, sound absorption and heat insulation, and low price. It is the largest foam variety in my country. , At present, it has been widely used in the fields of building wall, roof insulation, refrigeration, vehicle, ship insulation and other fie...

Claims

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Application Information

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IPC IPC(8): B32B17/02B32B17/10B32B27/12B32B27/30B32B27/40B32B27/36B32B27/20B32B33/00C08L25/06C08L75/04C08L69/00C08K13/06C08K3/34C08K3/36C08K7/24C08K3/22
CPCB32B5/02B32B5/18B32B17/10036B32B27/12B32B27/20B32B27/302B32B27/365B32B27/40B32B33/00B32B2266/0228B32B2307/304B32B2307/306B32B2307/3065B32B2307/558C08K2201/011C08K2201/014C08L25/06C08L2201/02C08L2203/14C08L2205/025C08L2205/035C08L75/04C08L69/00C08K13/06C08K3/34C08K3/36C08K7/24C08K2003/2227
Inventor 薛念念汤俊怀李青松王军
Owner 安徽城洁环境科技有限公司