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Light-induced mildew-proof bamboo product and preparation method thereof

A light-induced bamboo technology, applied in impregnation of wood, manufacturing tools, wood impregnation, etc., can solve the problems of easy mildew, difficult operation, cumbersome operation process, etc., to solve mildew, mild reaction conditions, and simple operation process Feasible effect

Inactive Publication Date: 2019-04-16
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the chemical composition of bamboo contains a large amount of nutrients such as starch and sugar needed for the growth of fungi, and it is very prone to mildew under conditions of suitable temperature and humidity.
Moldy bamboo will cause poor appearance of bamboo products, reduce its service life and use effect, and the spread of mold spores will affect the health of people living in the room
Therefore, bamboo products with anti-mold function and their manufacturing methods have attracted wide attention. The selection of highly efficient inorganic metal salts, oxides or simple substances has also been studied or applied, but: either the effective anti-mold factors are difficult to fix and the effect is difficult to last. Either the operation process is cumbersome and the operation is difficult, and there has been no very successful inorganic-loaded high-efficiency mildew-proof bamboo product

Method used

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  • Light-induced mildew-proof bamboo product and preparation method thereof
  • Light-induced mildew-proof bamboo product and preparation method thereof
  • Light-induced mildew-proof bamboo product and preparation method thereof

Examples

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Embodiment 1

[0044] Taking 120°C lightly carbonized bamboo bundles to make bamboo boards as an example, the preparation method of a light-induced mildew-resistant bamboo product in this embodiment includes the following steps:

[0045] (1) Preparation of lightly carbonized bamboo bundles.

[0046] (2) Immerse the bamboo bundles in a 0.4 mg / mL dopamine solution adjusted to a pH of about 8.5 with Tris buffer solution for 60 minutes, take it out and drain until no solution drips, and then dry it at 70°C for 40 minutes to obtain polydopamine-covered membranes. Bamboo bundles.

[0047] (3) Soak bamboo bundles covered with polydopamine film in 0.01mol / L titanyl sulfate solution for 120 minutes, take it out and add ammonia water (in other embodiments, sodium hydroxide solution can be used) to adjust the pH value to 9 , after adjusting the pH value, remove and drain until no solution drips, and dry at 70°C for 60 minutes to obtain loaded TiO 2 bamboo bunches.

[0048] (4) will load TiO 2 Bambo...

Embodiment 2

[0060] A kind of preparation method of light-induced mildew-proof bamboo product of the present embodiment, comprises the following steps:

[0061] (1) Coat the surface of lightly carbonized recombined bamboo purchased from the market with a 0.4mg / mL dopamine solution with a pH value of about 8.5 adjusted by Tris buffer solution, and dry it at 70°C after the coating is not sticky After 40 minutes, the recombined bamboo covered with the polydopamine film was obtained.

[0062] (2) After the recombined bamboo coated with polydopamine film 3 times is coated with 0.01mol / L titanyl sulfate solution, then coated with ammonia water (in other embodiments, sodium hydroxide solution can be used), and use pH test paper to detect The surface of the restructured bamboo is coated with the mixed liquid until the pH value is 9. After the coating is not sticky, it is dried at 70°C for 60 minutes to obtain the loaded TiO 2 recombined bamboo.

[0063] (4) will load TiO 2 After the recombined ...

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Abstract

The invention discloses a preparation method of a light-induced mildew-proof bamboo product. The preparation method comprises the following steps that S1, a raw bamboo material is soaked or coated with a dopamine solution and dried to obtained a bamboo material A; S2, the bamboo material A is soaked or coated with a titanyl sulfate solution and dried to obtained a bamboo material B; S3, the bamboomaterial B is soaked or coated with a silver nitrate solution and dried to obtain a bamboo material C; S4, the bamboo material C is subjected to aftertreatment, and the light-induced mildew-proof bamboo product is obtained. The preparation method has the advantages that industrial production can be achieved, the mildew-proof effect is good, and the preparation method is simple and easy to operate.

Description

technical field [0001] The invention relates to the field of biomass functional materials, in particular to a light-induced mildew-resistant bamboo product and a preparation method thereof. Background technique [0002] my country's resource-rich divine grass—bamboo is widely loved in domestic and foreign markets. However, the chemical composition of bamboo contains a large amount of nutrients such as starch and sugar needed for the growth of fungi, and it is very prone to mildew under conditions of suitable temperature and humidity. Mildewed bamboo will cause poor appearance of bamboo products, reduce its service life and use effect, and the spread of mold spores will affect the health of people living in the room. Therefore, bamboo products with anti-mold function and their manufacturing methods have attracted wide attention. The selection of highly efficient inorganic metal salts, oxides or simple substances has also been studied or applied, but: either the effective ant...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K9/00B27K3/04B27K3/12B27K3/34B27K3/16
CPCB27K3/04B27K3/12B27K3/16B27K3/34B27K9/002
Inventor 胡进波肖人华薛志成刘贡钢尚健雄苌姗姗张翔李贤军刘元吴志平路周
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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