A kind of solid organosilicon treating agent for wood and bamboo and preparation method thereof

A treatment agent, silicone technology, applied in wood treatment, wood treatment details, wood impregnation and other directions, can solve the problems of waterproof, moisture-proof effect, low solubility, poor permeability, etc., to achieve simple construction method, simple preparation process, low cost effect

Active Publication Date: 2020-11-06
INST OF APPLIED CHEM JIANGXI ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This invention solves the problems of low solubility and poor permeability in water of boron compounds used as wood protective agents at present, does not pollute the environment during production and use, and has functions such as antiseptic, insect-proof, flame-retardant and smoke-suppressive; the above-mentioned patented products are similar Greener and more environmentally friendly than CCA preservatives, but its waterproof and moisture-proof effects are not obvious

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Put 100g of monomethyltrichlorosilane, 200g of water, and 20g of 3-aminopropyltrimethoxysilane coupling agent in the reaction kettle at 0°C, stir and react at room temperature for 1h, then add 50g of boric acid dropwise, add dropwise After completion, heat up to 50°C. After reacting for 2 hours, add 120g of sodium hydroxide, continue to raise the temperature to 90°C, keep it warm for 2h, and drop to room temperature. Then adjust the pH value to 8 with aluminum sulfate, filter, and spray dry to obtain 250g of boric acid. The modified methyl silicate is finally dispersed with 50 g of sodium silicate with a modulus of 2.0, 2.5 g of defoamer, and 1.25 g of leveling agent at high speed to obtain a solid silicone treatment agent.

Embodiment 2

[0024] Put 100g of monomethyltrichlorosilane, 500g of water, and 100g of N-β-(aminoethyl)-γaminopropyltrimethoxysilane coupling agent in the reaction kettle at 5°C, and stir the reaction at room temperature for 2h Then add 100g of boric acid dropwise. After the dropwise addition, heat up to 60°C. After reacting for 3 hours, add 200g of potassium hydroxide, continue to raise the temperature to 90°C, keep it warm for 4h, and then drop it to room temperature, then adjust the pH value with potassium bicarbonate 9. Filtrate and spray dry to obtain 480g of boric acid modified methyl silicate, and finally disperse with 240g of sodium silicate with a modulus of 3.6, 24g of defoamer, and 4.8g of leveling agent at high speed to obtain a solid silicone treatment agent.

Embodiment 3

[0026] Put 100g of monomethyltrichlorosilane, 500g of water, and 50g of 3-aminopropyltriethoxysilane coupling agent in the reaction kettle at 0°C, stir and react at room temperature for 2 hours, then add 120g of boric acid dropwise, After the addition, heat up to 50°C. After 2 hours of reaction, add 200g of sodium hydroxide, continue to raise the temperature to 80°C, keep it warm for 3 hours, and drop to room temperature. Then adjust the pH value to 8 with sodium hydrogen phosphate, filter, and spray dry to obtain 400g of boric acid-modified methyl silicate, and finally disperse with 160g of sodium silicate with a modulus of 3.0, 4g of defoamer, and 3.0g of leveling agent at high speed to obtain a solid silicone treatment agent.

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Abstract

The invention relates to a solid organosilicone treatment agent for wood and bamboo materials and a preparation method. The solid organosilicone treatment agent is prepared from the following components of active component, sodium silicate, a defoaming agent and a flatting agent, wherein the active component is boric acid-modified methyl silicate. The boric acid-modified methyl silicate is prepared by the following steps of enabling a mixture of trimethyl chlorosilane and alkyl siloxane coupling agent and the boric acid to generate hydrolysis condensation reaction; then, reacting with strong alkaline; adjusting the pH (potential of hydrogen) value by a regulator, filtering, spraying and drying, so as to obtain the boric acid-modified methyl silicate. The solid organosilicone treatment agent has the advantages that the use method is simple; the solid is directly added into water, and uniformly stirred and dissolved, then the construction is performed, and multiple construction types canbe performed, such as spraying, brushing and immersing; the green and environment-friendly requirements are met; the good waterproof, corrosion-resistant, aging-resistant and flame-retardant properties are good, and the cracking and deformation of the wood and bamboo materials can be relieved; the solid organosilicone treatment agent is a necessary product on market.

Description

technical field [0001] The invention relates to a solid organic silicon treatment agent for wood and bamboo and a preparation method thereof, belonging to the technical field of organic silicon application. Background technique [0002] Building a conservation-oriented and environment-friendly society and developing a sustainable and circular economy have always been the goals of my country's construction. [0003] my country has a long history of wood protection, especially in wood preservation, such as the use of technologies such as CCA and ACQ. Discharge, there is running water of CCA agent, which causes pollution and harm to the environment. These problems have brought adverse consequences to the wood protection industry, affecting its healthy development, and do not meet the development requirements of our country. Therefore, it is imminent to develop green and environmentally friendly wood treatment agents. [0004] The notification number CN100443273 discloses a wo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27K3/52
CPCB27K3/52B27K2240/20B27K2240/70B27K2240/90
Inventor 游胜勇戴润英李韦伟董晓娜李玲谌开红邹吉勇陈仕平
Owner INST OF APPLIED CHEM JIANGXI ACAD OF SCI
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