Raw wood pulp fiber reinforced calcium silicate sheet

A calcium silicate board and fiber-reinforced technology, which is applied in the field of building materials, can solve the problems of high raw material prices, inability to use, and single variety of raw materials, and achieve the effects of shortening the resting time, less impurities, and a wide range of raw materials
CN103723972AInactive Publication Date: 2014-04-16LIUZHOU JIAREN PLATE IND +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
LIUZHOU JIAREN PLATE IND
Publication Date
2014-04-16
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a raw wood pulp fiber reinforced calcium silicate sheet which is mainly prepared from the following components by weight percentage: 6-12% of raw wood pulp fiber, 1-3% of glass fiber, 15-20% of lime, 35-46.04% of quartz, 20-30% of common silicate cement, and 1-2% of expanded perlite. The raw wood pulp fiber reinforced calcium silicate sheet has the advantages as follows: the early strength effect of Na+ salt on the silicate cement is utilized, so that the standing time of the plate-making process is shortened, in addition, the influence of the Na+ salt on the silicate cement is avoided, the problem that the raw wood pulp is directly used for production of a calcium silicate sheet is solved, and wood can be comprehensively utilized; due to the early strength of sodium salt on cement, the final setting time of cement is shortened, the stripping time is shortened (the original stripping time is 4-7 hours, and the current stripping time is 2-5 hours), and the strength is high; the appearance is attractive; the cost is low; the raw material is low in cost, and contains fewer impurities; the raw wood pulp fiber is used to replace rock wool; the 100% wool-free plate is produced; the raw wood pulp fiber reinforced calcium silicate sheet is low in cost, and more environmental-friendly.
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Description

technical field

[0001] The invention relates to a building material, in particular to a raw wood pulp fiber reinforced calcium silicate board. Background technique

[0002] Fiber-reinforced calcium silicate boards are widely used in various buildings because of their low density, fire prevention, strong sound insulation, anti-corrosion and moisture-proof, and high strength. The existing fiber-reinforced calcium silicate boards are divided into asbestos-containing and asbestos-free two kinds. The existing asbestos-containing fiber-reinforced calcium silicate board is produced. The reinforcing fibers used are mainly waste kraft paper, glass fiber, asbestos, etc., and other raw materials are CaO, SiO2, expanded perlite and ordinary Portland cement. It is made through shredded paper refining, asbestos loosening, pulping, pulp vacuum dehydration, molding and demoulding, autoclaving reaction, drying, edging, and finished product. The fiber that this prior art uses is paper fiber...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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