Preparation method of long-acting weather-proof type recombinant bamboo
A weather-resistant, reconstituted bamboo technology, used in the pretreatment of molding materials, flat products, manufacturing tools, etc., can solve the problems of high formaldehyde content, unsuitable for long-term protection of the reconstituted bamboo surface, and easy loss.
Active Publication Date: 2019-07-09
福建省九竹工贸有限公司
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Problems solved by technology
[0007] The technical problem to be solved by the present invention is aimed at the high formaldehyde content and poor weather resistance of recombinant bamboo when it is used outdoors at present, mainly including water resistance, anti-corrosion, anti-mildew and light aging resistance. The conventional method for
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[0030] Preparation of pre-treated fiber bundles: select moso bamboo, rinsed with deionized water, and sawed into a bamboo tube with a length of 2m, split the bamboo tube into bamboo strips longitudinally, and roll the bamboo strips with the stone strips repeatedly for 1 hour to obtain the bamboo strip fiber after directional dissolution To obtain the pretreated fiber bundle, the bamboo stripe fiber bundle after orientation disintegration is soaked in absolute ethanol for 3 hours and then taken out;
[0031] Preparation of oxidized fiber bundle:
[0032] The pretreated fiber bundle and the potassium permanganate solution with a mass fraction of 30% were mixed in a mass ratio of 1:10 and then put into the reactor, heated to 50°C, stirred and reacted for 1h, and then discharged to obtain an oxidized fiber bundle ;
[0033] Preparation of modified bamboo fiber bundle:
[0034] Mix zinc nitrate, ferric nitrate, tetrabutyl titanate and water according to a mass ratio of 1:1:3:15 to obtain ...
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The invention discloses a preparation method of long-acting weather-proof type recombinant bamboos, and belongs to the technical field of furniture material preparation. According to the preparation method of the long-acting weather-proof type recombinant bamboos, pretreated bamboo skin fiber bundles are firstly soaked by using absolute ethanol, hydroxylation modifying is conducted on the pretreated bamboo skin fiber bundles to obtain polyhydroxy bamboo skin fiber bundles, then the pretreated fiber bundles are oxidized by using a potassium permanganate solution, thus gydroxyl groups on the surface of the fiber bundles are oxidized to carboxyl groups, the oxidized fiber bundles, zinc nitrate, iron nitrate and tetrabutyltitanate are mixed to react, nano-titanium oxide and zinc oxide have ultraviolet shielding properties, the light aging resistance and the mildew and corrosion resistance of the recombinant bamboos are improved, metal oxide particles are formed by in-situ chelation and arenot prone to being scratched and lost, the recombinant bamboos can be protected for a long time, the modified bamboo fiber bundles are used as raw materials to conduct in-situ condensation sizing with phenolic material emodin and furfural, a thermosetting furfural resin adhesive and the modified bamboo fiber bundles are obtained to be cross-linked and mixed, because the formaldehyde content of furfural resin is lowered, and the recombinant bamboos are made without formaldehyde.
Description
technical field [0001] The invention discloses a preparation method of long-acting weather-resistant recombined bamboo, which belongs to the technical field of furniture material preparation. Background technique [0002] Generally speaking, the bamboo furniture we talk about mainly refers to traditional bamboo furniture, that is, traditional round bamboo furniture, and traditional round bamboo furniture is mainly composed of rod-shaped round bamboo. With the rapid development of science and technology, the connotation and extension of the definition of bamboo furniture have undergone great changes. Modern bamboo furniture mainly refers to furniture made of bamboo as the main raw material. According to the structural form, it can be divided into: round Bamboo furniture, bamboo glulam furniture, bamboo composite wood furniture and bamboo curved and glued furniture. Bamboo reconstituted wood furniture, also known as recombined bamboo furniture, commonly known as heavy bamboo ...
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Patent Timeline
Login to view more IPC IPC(8): B27N3/04B27N3/12B27N3/14B27N3/00B27N1/00B27N1/02B27K9/00B27K3/16B27K3/34B27K3/52B27K3/50B27K3/32B27K5/00B27J1/00B27L11/08
CPCB27J1/00B27K3/16B27K3/32B27K3/34B27K3/50B27K3/52B27K5/001B27K9/002B27K2200/15B27K2240/20B27K2240/90B27L11/08B27N1/00B27N1/0209B27N3/002B27N3/04B27N3/12B27N3/14
Inventor 黄嘉汉
Owner 福建省九竹工贸有限公司
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