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Inorganic modified polystyrene board

An inorganic modification, polystyrene board technology, used in building components, thermal insulation, fire prevention and other directions, can solve the problems of thermal insulation performance, poor bulk density and water absorption, EPS board is flammable, producing poisonous gas and thick smoke, etc. High heat conduction inward, not easy to fall off, and the effect of improving fire resistance

Active Publication Date: 2014-09-03
镇江市常松建材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is: in order to solve the problem that traditional EPS boards are flammable and produce poisonous gas and dense smoke when burned, and for the existing fire-proof EPS boards, although the fire-proof performance has been improved, but in terms of thermal insulation performance, bulk density, etc. To improve the situation of poor performance in terms of water absorption and water absorption, the present invention provides an inorganic modified polystyrene board to solve the above problems by coating polystyrene particles to isolate flammable polystyrene from the air and prevent it from burning. question

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Prepare the fireproof material according to the following components and the proportion of components by weight:

[0033] 60 parts of water glass;

[0034] Particle size is 15 parts of light calcium carbonate of 10000 mesh;

[0035] 1 part polyacrylamide;

[0036] 0.5 parts of sodium lauryl sulfate;

[0037] 4 parts of carbon dioxide;

[0038] Mix and stir the above components evenly, mix and stir the fireproof material with a weight of 160kg and polystyrene particles with a weight of 14kg and a particle size of 3mm, then pour it into the mold, pressurize, solidify, and finally dry and demould. Cut to shape. The test results are shown in Table 1.

Embodiment 2

[0040] Prepare the fireproof material according to the following components and the proportion of components by weight:

[0041] 70 parts of water glass;

[0042] Granularity is 20 parts of heavy calcium carbonate of 12500 meshes;

[0043] 1.5 parts of polyacrylamide;

[0044] 1 part of sodium dodecylsulfonate;

[0045] 4.5 parts of carbon dioxide;

[0046] Mix and stir the above components evenly, mix and stir the fireproof material weighing 150kg and polystyrene particles weighing 18kg and particle size 4mm evenly, then pour it into the mold, pressurize, solidify, and finally dry and demould. Cut to shape. The test results are shown in Table 1.

Embodiment 3

[0048] Prepare the fireproof material according to the following components and the proportion of components by weight:

[0049] 80 parts of silica sol;

[0050] Particle size is 25 parts of kaolin of 15000 mesh;

[0051] 2 parts polyacrylamide;

[0052] 1.5 parts of sodium lauryl sulfate;

[0053] 5 parts carbon dioxide;

[0054] Mix and stir the above components evenly, mix and stir the fireproof material weighing 140kg and polystyrene particles weighing 22kg and particle size 5mm evenly, then pour it into the mold, pressurize, solidify, and finally dry and demould. Cut to shape. The test results are shown in Table 1.

[0055] Inspection item (unit) Implementation one Implementation two Implementation three Apparent density (kg / m 3 ) 174 168 162 Thermal conductivity ([W / (m K)]) 0.053 0.052 0.050 Compressive strength (MPa) 0.11 0.12 0.13 Water absorption (%) 2.0 1.9 1.8 Combustion performance A2 level A2 level A2...

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PUM

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Abstract

The invention provides an inorganic modified polystyrene board which comprises multiple polystyrene granules and fireproof material, wherein the polystyrene granules are fixedly connected into a whole, the granularity of the polystyrene granules is 2 mm-5 mm, and the polystyrene granules are coated with the fireproof material. The weight ratio of the polystyrene granules to the fireproof material is 1:7-1:11. The fireproof material comprises, by weight, 60-80 parts of water glass or silica sol, 15-25 parts of light calcium carbonate, or ground calcium carbonate or kaolin, 1-2 parts of flocculating agents, 0.5-1.5 parts of surface active agents and 4-5 parts of carbon dioxide. The granularity of the light calcium carbonate, or the ground calcium carbonate or the kaolin is 10,000-15,000 meshes. According to the inorganic modified polystyrene board, the surfaces of the polystyrene granules are carbonized and crystallized in case of fire and free of fusion dripping; no open fire spreading exists in the longitudinal direction and the transverse direction, and the inorganic modified polystyrene board is self-extinguished after being away from the fire; no smoldering exists, and no combustion bits fall off.

Description

technical field [0001] The invention relates to the technical field of building heat preservation, in particular to an inorganic modified polystyrene board. Background technique [0002] At present, building insulation materials on the market include polystyrene board, phenolic board, rigid foam composite polyurethane board, rock wool, thermal insulation mortar, and foamed cement board. It is mature, and there are still problems such as high water absorption that have not been resolved, and it is difficult to popularize and apply in the short term; the combustion performance index of rigid foam composite polyurethane board can only reach B in GB8624-2012 "Classification of Combustion Performance of Building Materials and Products". 1 level, and the technical threshold is high, it is difficult for general enterprises to meet the requirements of product production, resulting in high product prices and greatly increasing construction costs; while rock wool, thermal insulati...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04B1/80E04B1/94C04B28/26C04B14/28C04B111/28
Inventor 李传宏
Owner 镇江市常松建材有限公司
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