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Novel foaming cement insulation board and preparation method thereof

A foamed cement and thermal insulation board technology, applied in the field of thermal insulation core materials for buildings, can solve problems such as poor waterproof performance, insufficient toughness, easy cracking, etc., and achieve the effects of low water absorption, increased single-cell closed cell rate, and reduced weight

Inactive Publication Date: 2017-11-07
HEFEI GUANGMIN BUILDING MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the foamed cement insulation boards in the prior art often have quality problems such as insufficient toughness, low strength, and poor waterproof performance, and are very easy to crack, break, and damage, which brings great inconvenience to the transportation and construction process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A new type of foamed cement insulation board, comprising the following components in parts by weight: 70 parts of cement, 30 parts of phenolic resin, 20 parts of fly ash, 15 parts of nano hollow microspheres, 10 parts of active nano silicon dioxide, talcum powder 5 parts, 7 parts of fiber reinforced material, 3 parts of calcium stearate, 5 parts of microsilica, 3 parts of aluminum nitride, 1 part of auxiliary agent, 3 parts of foaming agent and 90 parts of water;

[0031] The auxiliary agent includes the following components in parts by weight: 4.5 parts of waterproof thickener, 3 parts of accelerator, 1.5 parts of foam stabilizer and 0.6 parts of water reducer.

[0032] Wherein, the cement is 42.5R Portland cement.

[0033] Wherein, the particle size of the nano hollow microbeads is 4.5nm, and the hollow rate is above 80%.

[0034] Wherein, the fiber reinforcement material is one or a mixture of polypropylene fibers, polyvinyl chloride fibers, polyurethane fibers and ...

Embodiment 2

[0049] A new type of foamed cement insulation board, comprising the following components in parts by weight: 60 parts of cement, 20 parts of phenolic resin, 15 parts of fly ash, 10 parts of nano hollow microspheres, 5 parts of active nano silicon dioxide, talcum powder 2 parts, 4 parts of fiber reinforced material, 1 part of calcium stearate, 3 parts of microsilica, 1 part of aluminum nitride, 0.5 parts of auxiliary agent, 1 part of foaming agent and 80 parts of water;

[0050] The auxiliary agent includes the following components in parts by weight: 3 parts of waterproof thickener, 1 part of accelerator, 0.5 part of foam stabilizer and 0.4 part of water reducer.

[0051] Wherein, the cement is 42.5R Portland cement.

[0052] Wherein, the particle size of the nano hollow microbeads is 4nm, and the hollow rate is above 80%.

[0053] Wherein, the fiber reinforcement material is one or a mixture of polypropylene fibers, polyvinyl chloride fibers, polyurethane fibers and rock woo...

Embodiment 3

[0068] A new type of foamed cement insulation board, comprising the following components in parts by weight: 80 parts of cement, 40 parts of phenolic resin, 35 parts of fly ash, 20 parts of nano hollow microspheres, 15 parts of active nano silicon dioxide, talcum powder 8 parts, 10 parts of fiber reinforced material, 5 parts of calcium stearate, 8 parts of microsilica fume, 5 parts of aluminum nitride, 1.5 parts of auxiliary agent, 5 parts of foaming agent and 100 parts of water;

[0069] The auxiliary agent includes the following components in parts by weight: 6 parts of waterproof thickener, 5 parts of accelerator, 2.5 parts of foam stabilizer and 0.8 part of water reducer.

[0070] Wherein, the cement is 42.5R Portland cement.

[0071] Wherein, the particle size of the nano hollow microbeads is 5nm, and the hollow rate is above 80%.

[0072] Wherein, the fiber reinforcement material is one or a mixture of polypropylene fibers, polyvinyl chloride fibers, polyurethane fibers...

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Abstract

The invention discloses a novel foaming cement insulation board and a preparation method of the insulation board. The insulation board comprises the following components in parts by weight: 60-80 parts of cement, 20-40 parts of phenolic resin, 15-35 parts of fly ash, 10-20 parts of nano hollow microbead, 5-15 parts of active nano silica, 2-8 parts of a talcum powder, 4-10 parts of a fiber reinforced material, 1-5 parts of calcium stearate, 3-8 parts of silica fume, 1-5 parts of aluminum nitride, 0.5-1.5 parts of an assistant, 1-5 parts of a foaming agent and 80-100 parts of water. The preparation method comprises the steps of adding a cement main material, adding an additive, performing stirring, curing and demolding, and then performing curing again until finished foaming cement is formed. The foaming cement board prepared by the method has higher comprehensive performance such as insulation, fire resistance, sound isolation, moisture resistance and compression resistance, and can be widely applied in insulation positions of various building external walls requiring insulation measures.

Description

technical field [0001] The invention belongs to the technical field of thermal insulation core materials for buildings, and in particular relates to a novel foamed cement thermal insulation board and a preparation method thereof. Background technique [0002] External wall insulation is an important measure in building energy-saving projects. External wall insulation materials need to have high waterproof, moisture-proof, sound insulation and durability properties. Traditional external wall insulation materials are mainly organic insulation materials represented by polystyrene. These organic materials have the advantages of small thermal conductivity, small bulk density, and good toughness. However, the above-mentioned organic insulation materials are more environmentally friendly, fireproof and durable. In recent years, inorganic thermal insulation materials represented by foamed cement can make up for the defects of the above-mentioned organic thermal insulation materials,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B38/10C04B111/28C04B111/40C04B111/52C04B111/27
CPCC04B28/04C04B2111/27C04B2111/28C04B2111/40C04B2111/52C04B24/302C04B18/08C04B18/027C04B14/062C04B14/042C04B24/085C04B18/146C04B14/326C04B20/0048C04B2103/65C04B2103/12C04B2103/48C04B2103/302C04B2103/42C04B38/10
Inventor 黄洋
Owner HEFEI GUANGMIN BUILDING MATERIAL CO LTD
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