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Preparation process for three-dimensional mesh cloth foaming cement composite material

A three-dimensional mesh and composite material technology, applied in the field of building materials, can solve the problems of poor mechanical properties, low thermal conductivity, and high brittleness, and achieve the effects of good mechanical strength, low thermal conductivity, and reduced brittleness.

Active Publication Date: 2014-02-19
JIANGSU NIGAO SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Foamed cement board is a kind of external wall insulation material that is gradually rising at present. It is not easy to age, has the same life as the building, light bulk density, low thermal conductivity, and the fire resistance limit is more than 3 hours. Poisonous gas and other advantages, but the disadvantages of the foamed cement version are also obvious, that is, poor mechanical properties, low strength, high brittleness, very easy to 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

preparation example Construction

[0025] A preparation process of a three-dimensional grid cloth foamed cement composite material, the preparation process comprises the following process steps:

[0026] (1) Preparation of three-dimensional grid cloth skeleton

[0027] The three-dimensional mesh structure whose cross-section is rectangular or "8" is coated with styrene-butadiene rubber and pure acrylic emulsion, and treated with alkali-resistant coating, and then coated with epoxy resin to obtain a three-dimensional mesh cloth skeleton;

[0028] (2) Premixing of foamed cement board masterbatch

[0029] Mix 0-10 parts by weight of fly ash, 1.0-3.0 parts by weight of water repellent, 0.05-1 parts by weight of water reducer, 0-2.5 parts by weight of fiber, and 0-3 parts by weight of coagulation regulator Fully mix in the machine for 3-5 minutes to prepare foamed cement board masterbatch;

[0030] (3) Foam molding of composite materials

[0031] First put the foamed cement board masterbatch obtained in step (2)...

specific Embodiment 1

[0035] A preparation process of a three-dimensional grid cloth foamed cement composite material, the preparation process comprises the following process steps:

[0036] (1) Preparation of three-dimensional grid cloth skeleton

[0037] Its cross-section is rectangular or "8"-shaped structure, three-dimensional network structure of medium-alkali glass fiber woven fabric, coated with styrene-butadiene rubber and pure acrylic emulsion, treated with alkali-resistant coating, and then shrinked with low epoxy value Glyceryl ether epoxy resin coating treatment to obtain a three-dimensional grid cloth skeleton;

[0038] (2) Premixing of foamed cement board masterbatch

[0039] Put 1 weight part of primary fly ash, 3.0 weight parts of silane water repellent, 0.8 weight part of naphthalene water reducer, 0.5 weight part of mineral fiber, and 0.1 weight part of chloride coagulant in the mixer Fully mixed in the medium for 3 minutes to prepare the foamed cement board masterbatch;

[004...

specific Embodiment 2

[0044] A preparation process of a three-dimensional grid cloth foamed cement composite material, the preparation process comprises the following process steps:

[0045] (1) Preparation of three-dimensional grid cloth skeleton

[0046] Its cross-section is rectangular or "8"-shaped structure, three-dimensional network structure of alkali-free glass fiber woven fabric, coated with styrene-butadiene rubber and pure acrylic emulsion, treated with alkali-resistant coating, and then shrinked with low epoxy value Glyceryl ether epoxy resin coating treatment to obtain a three-dimensional grid cloth skeleton;

[0047] (2) Premixing of foamed cement board masterbatch

[0048] 5 parts by weight of primary fly ash, 2.0 parts by weight of silane water repellent, 0.6 parts by weight of melamine water reducer, 1.3 parts by weight of polyester fiber, and 1.5 parts by weight of sulfate coagulant in Fully mix in the mixer for 4 minutes to prepare the foamed cement board masterbatch;

[0049]...

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Abstract

The present invention discloses a preparation process for a three-dimensional mesh cloth foaming cement composite material. The preparation process comprises the following process steps: preparing a three-dimensional mesh cloth skeleton; pre-mixing a foaming cement board master batch; pouring the resulting foaming cement board master batch into water, stirring for 30-60 seconds, pouring silicate cement and special cement into the water, and stirring for 15-30 seconds; adding a composite foaming agent, and stirring for 15-30 seconds; pouring the resulting slurry into a mold placed with the three-dimensional mesh cloth skeleton, and carrying out injection molding to prepare a composite material; and carrying out hardening, mold removing and watering, and carrying out film concrete curing until the curing time is achieved to obtain the three-dimensional mesh cloth foaming cement composite material of the present invention. The product of the present invention has characteristics of light weight, thermal insulation, durability, heat insulation, sound insulation, and good mechanical strength, can be adopted as an excellent thermal insulation material for building energy saving, and can further be widely used in pouring of building roofing, grounds, inside and outside walls, and the like.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a preparation process of a three-dimensional grid cloth foamed cement composite material. Background technique [0002] In recent years, foam plastics have continuously caused serious fires in building insulation construction, causing serious losses, and have attracted the attention of relevant departments. Although inorganic thermal insulation materials still have the disadvantages of higher density and poorer thermal insulation than organic foam materials, from the perspective of fire prevention, it has become the current development trend to replace organic foam materials with inorganic thermal insulation materials. Among the inorganic non-combustible materials, the price of foam glass and foam ceramics is relatively high; although the price of fiber insulation materials such as rock wool and mineral wool is slightly lower, they are harmful to human body during production and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B28/04C04B38/08
Inventor 郭锋蒋青青马德功雷文晗王世忠顾卫忠
Owner JIANGSU NIGAO SCI & TECH