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Fireproof calcium silicate board with good high temperature stability, and preparation method of fireproof calcium silicate board

A technology of high-temperature stability and calcium silicate board, which is applied in the field of calcium silicate cement board, can solve problems affecting the high-temperature performance of calcium silicate board, and achieve the effects of reduced high-temperature shrinkage, reduced dosage, and high performance

Inactive Publication Date: 2018-11-23
金强(福建)建材科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Asbestos-free calcium silicate board generally uses wood pulp fiber as a reinforcing material, because wood pulp fiber is flammable, it will affect the high temperature performance of calcium silicate board

Method used

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  • Fireproof calcium silicate board with good high temperature stability, and preparation method of fireproof calcium silicate board
  • Fireproof calcium silicate board with good high temperature stability, and preparation method of fireproof calcium silicate board

Examples

Experimental program
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Embodiment 1

[0017] A calcium silicate board for fire prevention with good high temperature stability, including the following weight percentages of raw materials: slaked lime powder 16-20%, quartz powder 23-30%, Portland cement 6-9%, aluminum hydroxide 6-10 %, sea foam mud 8-15%, wood pulp fiber 5.5-7.5%, wollastonite 12-16%, mica 4-6%, expanded perlite 1.5-3%, expanded vermiculite 1.5-3%, polypropylene Amide 0.02-0.06%.

Embodiment 2

[0019] A calcium silicate board for fire prevention with good high temperature stability, including the following weight percentages of raw materials: slaked lime powder 18.50%, quartz powder 24.96%, Portland cement 7.50%, aluminum hydroxide 9.00%, sepio mud 10.00%, Wood pulp fiber 6.00%, wollastonite 15.00%, mica 5.00%, expanded perlite 2.00%, expanded vermiculite 2.00%, and polyacrylamide 0.04%.

[0020] A preparation method of calcium silicate board for fire prevention with good high temperature stability, such as figure 1 As shown, slaked lime powder, quartz powder, Portland cement, aluminum hydroxide, sepio mud, wood pulp fiber, wollastonite, mica, expanded perlite, and expanded vermiculite are prepared according to weight percentages and then mixed, and then Add water and stir to make the concentration of the mixture 15%-19%. A thin layer with a thickness of 0.8mm~1.2mm is formed by flow slurry, and then each thin layer is laminated through a forming cylinder to form an ove...

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Abstract

The invention discloses a fireproof calcium silicate board with good high temperature stability. The fireproof calcium silicate board is prepared from the following raw materials: slaked lime powder,quartz powder, portland cement, aluminum hydroxide, sepiolite clay, wood pulp fibers, wollastonite, mica, expanded perlite, expanded vermiculite and polyacrylamide. The preparation method comprises the following steps: preparing the raw materials according to the ratio, mixing the raw materials, then adding water and stirring, and forming thin material layers by means of slurry flow; laminating all the thin material layers by means of a forming cylinder so as to form an integral slab having a thickness of 9-25mm; in the slurry flow process, mixing the polyacrylamide with the slurry; carrying out hydrothermal curing on the slab by using saturated steam to form a board with strength; drying the board and then carrying out cutting processing to obtain the fireproof calcium silicate board. Thehigh temperature stability of the calcium silicate board is improved by improving a base material for the calcium silicate board and compounding the flaky mica and acicular wollastonite with high performance and high settlement value as reinforcing fibers; the fireproof calcium silicate board can be used in various indoor occasions with high fire endurance requirements in industrial and civil buildings.

Description

Technical field [0001] The invention relates to the technical field of calcium silicate cement boards, in particular to a calcium silicate board for fire prevention with good high-temperature stability and a preparation method thereof. Background technique [0002] Calcium silicate board can be used in various industrial and civil buildings for indoor fire partitions, fire ceilings, fire smoke pipes, fire air ducts, smoke curtains, structural protection, curtain wall fire partitions, etc., which require high indoor fire resistance limits. For example, the fire partition or fire ceiling composed of calcium silicate board, filling material and structural framework is the light-weight non-load-bearing passive fire partition and ceiling in the building; in order to increase the fire resistance limit of the passive fire protection system, silicate The high temperature performance requirements of calcium board are high. [0003] The use of asbestos fiber has been banned. At present, the...

Claims

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Application Information

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IPC IPC(8): C04B28/12C04B111/28
CPCC04B28/12C04B2111/28C04B14/06C04B7/02C04B22/06C04B14/042C04B18/26C04B22/00C04B14/185C04B14/20C04B14/204C04B24/2652
Inventor 郑日镜曾文之刘金铃翁斌
Owner 金强(福建)建材科技股份有限公司