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Cured molded article

A technology of curing agent and oxide, which is applied in the direction of inorganic raw material artificial filaments, textiles, papermaking, non-woven fabrics, etc., can solve the problem of low absolute strength and achieve high strength

Active Publication Date: 2013-12-18
NICHIAS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, there is a disadvantage of low absolute strength in molded products made of biosoluble fibers

Method used

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  • Cured molded article
  • Cured molded article
  • Cured molded article

Examples

Experimental program
Comparison scheme
Effect test

manufacture example 1

[0089]

[0090] Made of biosoluble fiber A (among them, SiO 2 content of 73% by mass, CaO content of 25% by mass, MgO content of 0.3% by mass, Al 2 o 3 Content is 2% by mass) 90% by weight, starch and polyacrylamide (organic binder), colloidal silica (inorganic binder), manufactured length 300mm, width 300mm, thickness 50mm (density 250kg / m 3 ) of organic plates.

[0091] Further, by biosoluble fiber A85% by weight, colloidal silica and alumina sol and bentonite (inorganic binder), inorganic powder (silicon dioxide, zircon, calcium carbonate, zirconia, cordierite, wollastonite etc.), acrylamide (organic binder) manufacturing length 300mm, width 300mm, thickness 50mm (density 250kg / m 3 ) of the inorganic board.

manufacture example 2

[0093]

[0094] Instead of biosoluble fiber A, biosoluble fiber B (wherein, SiO 2 content of 76% by mass, CaO content of 4% by mass, MgO content of 18% by mass, Al 2 o 3 Content is 2 mass %), other are same as manufacture example 1, manufacture organic and inorganic plate.

Embodiment 1

[0096]

[0097] The organic plate and the inorganic plate (density 250kg / m2) obtained in manufacturing example 1 3) is treated (immersed for 1 to 10 seconds) with a solidification solution (pH about 9, solvent is water) composed of alkaline colloidal silica, and the surface is solidified and dried. The density is 300kg / m 3 . Strength increases after curing. Photographs of the surface of the inorganic plate before and after curing are shown in figure 1 . Furthermore, the hardness of the cured organic and inorganic plates was measured using a hardness meter (manufactured by Asker: Asker rubber hardness meter C type). The results are shown in Table 1.

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Abstract

A molded article formed from 20 to 99 wt% of biodegradable inorganic fibers comprising SiO2 and an alkaline earth metal, wherein the colloidal silica that serves as the curing agent penetrates from the surface of the molded article to obtain a molded article having a cured surface.

Description

technical field [0001] The present invention relates to a molded article made of cured inorganic fibers. Background technique [0002] Inorganic fibers are light, easy to handle, and have excellent heat resistance, so they are used, for example, as a heat-resistant sealing material. On the other hand, in recent years, inorganic fibers have been pointed out as a problem of lung invasion due to inhalation into the human body. For this reason, biosoluble inorganic fibers that do not cause problems or hardly cause problems even if they are inhaled into the human body have been developed. [0003] However, moldings made of biosoluble fibers have a disadvantage of low absolute strength. [0004] In addition, Patent Document 1 discloses a plaster containing biosoluble silicate alkaline earth metal salt fibers and colloidal silica. By using colloidal silica as a binder, excellent storage stability can be exhibited. , The storage stability can be further improved by containing a c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/80C04B41/68D01F9/08D04H1/4209D06M11/79
CPCC04B28/24C04B35/14C04B35/18C04B35/195C04B35/6269C04B35/6303C04B35/6316C04B35/632C04B41/009C04B41/5089C04B41/68C04B2235/3208C04B2235/3217C04B2235/3244C04B2235/3248C04B2235/3418C04B2235/3454C04B2235/3481C04B2235/349C04B2235/5232C04B2235/616C04B35/80C04B14/4643C04B24/2652C04B24/383C04B14/043C04B14/06C04B14/104C04B14/28C04B14/306C04B14/465C04B26/06C04B26/28D01F9/08D06M11/79
Inventor 岸木智彦三原彻也米内山贤石原铁也
Owner NICHIAS CORP