Bamboo and wood protecting agent

Abstract

The bamboo and wood protecting agent is prepared with zinc acid in 1.8-2.2 wt%, boric acid in 0.8-1.2 wt% and borate in 2.4-3.6 wt% as main material and through adding one or two of fluoride, quaternary ammonium salt, chlorothalonil, phenol sodium pentammine and phoxim emulsion in 2-3 wt%. It has high-efficiency and wide-spectrum motherproof, moldproof and anticorrosive effect, high water solubility, high fixity, low cost, no harm to environment and no dyeing effect on bamboo and wood.

Description

technical field [0001] The invention relates to the protection technology of bamboo wood, in particular to a protective agent for bamboo wood. Background technique [0002] Due to various reasons such as its chemical composition and organizational structure, bamboo materials are extremely prone to moths, mildew and decay, which seriously restricts the industrial development and utilization of bamboo materials. Therefore, many people in China have successively carried out research on bamboo protection technology and developed a variety of bamboo protection agents. There are mainly the following types: [0003] 1. "Bamboo Defense-II" preservative from Guangdong Institute of Chemistry. "Zhufang-II" is a single component of methylene dithiocyanate (MBT), which is non-water soluble, inconvenient to use, high in cost and short in validity. [0004] 2. The "ACB and CCB anti-mold preservatives" of Nanlin University are mainly composed of borides, chromium compounds and copper sal...

AI Technical Summary

Problems solved by technology

"Zhufang-II" is a single component methylene dithiocyanate (MBT), non-water-soluble, inconvenient to use, high cost, and short validity period

[0004] 2. The "ACB and CCB anti-mold preservatives" of Nanlin University are mainly composed of borides, chromium compounds and copper salts. Has a dyeing effect and is harmful to the environment

[0005] 3. Du Fuyuan's "BBP-811 antifungal agent", the main component is boride, which has a good antifungal effect, but the disadvantage is that it has a single effect

[0006] 4. "DP antifungal agent" by Ma Lingfei et al., the main component is 2,5-dichloro-3-bromophenol, which has a good antifungal effect, but has a single effect, high cost, poor water solubility, and inconvenient protective treatment. not long enough

[0007] 5. The "79-7" anti-insect and anti-fungal agent of Liu Yun et al., the main component is 1,2-dibromoethane, which has a certain anti-insect and anti-mold effect, but the protection period is short, the cost is high, and it is not water-soluble. Handling inconvenience

Its main components are borides, fluorides and amine salts. Its protective effect is good, water-soluble, easy to handle, but poor fixation

[0009] 7. WP-1 from Qinghai Wood Preservative Factory and NETT wood preservative from Beijing Mucai Preservative Factory of the Ministry of Railways are used for bamboo protection. The former has poor effect and staining effect, while the latter has better protective effect but higher price

[0010] The above-mentioned several kinds of bamboo protective agents and wood preservatives were analyzed and compared. "Compound B" and "NETT" have the best performance, but they have the disadvantages of poor fixability and high price.

[0011] The research and development of wood preservatives has a history of more than 70 years, while the research on bamboo preservatives has only been for more than 20 years. The most successful copper, chromium, and arsenic series of wood preservatives (CCA series) developed in history are harmful to the environment due to their high toxicity. Recently restricted