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Preparation method of special organosilicon waterproof agent for wood

A technology of silicone and waterproofing agent, which is applied in the direction of coating, etc., can solve the problem that the waterproof performance of waterproofing agent cannot be further improved, and achieve the effect of improving waterproof performance

Inactive Publication Date: 2018-11-06
FOSHAN WANYANG BIOLOGICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem mainly solved by the present invention is: aiming at the problem that the waterproof performance of the traditional wood waterproofing agent cannot be further improved, a preparation method of a special organic silicon waterproofing agent for wood is provided

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0020] The graphene oxide and water were placed in the No. 1 beaker at a mass ratio of 1:30, and the No. 1 beaker was placed in an ultrasonic disperser. Under the condition of an ultrasonic frequency of 75kHz, the ultrasonic dispersion was carried out for 60 minutes, and then the No. 1 beaker was dropped. Add 30% ammonia water to adjust the pH to 10.1 to obtain the pretreatment mixture. Place the jute fiber in a pulverizer and smash it through an 80-mesh sieve to obtain jute fiber powder. In parts by weight, 30 parts jute fiber powder , 10 parts of cellulase and 60 parts of water are placed in a No. 2 beaker at a temperature of 35°C and a rotation speed of 500r / min. After stirring and constant temperature treatment for 60 minutes, the enzyme is heated to 95°C for 30 minutes to obtain a jute fiber mixture. , Place the pretreatment mixture and the jute fiber mixture in a vortex shaker at a mass ratio of 1:10 for 10 minutes to obtain a mixed slurry, then filter the mixed slurry to ...

example 2

[0022] The graphene oxide and water were placed in the No. 1 beaker at a mass ratio of 1:30, and the No. 1 beaker was placed in an ultrasonic disperser. Under the condition of an ultrasonic frequency of 75kHz, the ultrasonic dispersion was carried out for 60 minutes, and then the No. 1 beaker was dropped. Add 30% ammonia water to adjust the pH to 10.1 to obtain the pretreatment mixture. Place the jute fiber in a pulverizer and smash it through an 80-mesh sieve to obtain jute fiber powder. In parts by weight, 30 parts jute fiber powder , 10 parts of cellulase and 60 parts of water are placed in a No. 2 beaker at a temperature of 35°C and a rotation speed of 500r / min. After stirring and constant temperature treatment for 60 minutes, the enzyme is heated to 95°C for 30 minutes to obtain a jute fiber mixture. , Place the pretreatment mixture and the jute fiber mixture in a vortex shaker at a mass ratio of 1:10 for 10 minutes to obtain a mixed slurry, then filter the mixed slurry to ...

example 3

[0024] Put polyvinyl alcohol and water in a three-necked flask at a mass ratio of 1:50, stir with a glass rod for 20 minutes, and swell for 5 hours after standing, then place the three-necked flask in a digital speed-measuring thermostatic magnetic stirrer at a temperature of 85°C. At a speed of 600r / min, heat and stir to dissolve for 60min, add gelatin 0.8 times the mass of polyvinyl alcohol, at a temperature of 85℃, at a speed of 600r / min, heat and stir to dissolve for 60min, then add polyethylene to the three-necked flask 30% hydrochloric acid with 10 times the mass of the alcohol and 30% glutaraldehyde solution with 10 times the mass of the polyvinyl alcohol at a temperature of 38°C and a rotational speed of 300r / min for 12h to obtain a mixture Then filter the mixed slurry to obtain a gel, cut the gel into pieces, and wash with deionized water for 6 days, changing the deionized water every 12 hours, and vacuum drying the washed gel pieces at room temperature for 5 hours. Ob...

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PUM

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Abstract

The invention discloses a preparation method of a special organosilicon waterproof agent for wood, and belongs to the technical field of building materials. The preparation method comprises the following steps: stirring and mixing octamethylcyclotetrasiloxane, tetramethylcyclotetrasiloxane, hexadecane and a cationic surface active agent, stirring and mixing, warming and stirring for an emulsion reaction, then warming, adding a catalyst, carrying out a heat preservation reaction, cooling, adjusting the pH, and discharging to obtain a pretreatment emulsion; stirring and mixing 8 to 10 parts of an iso-tridecanol polyoxyethylene ether emulsifying agent, 20 to 30 parts of the pretreatment emulsion, 10 to 20 parts of epoxy silicon oil, 8 to 10 parts of modified gel powder, 10 to 20 parts of sideface hydrogen-containing silicone oil, 10 to 20 parts of a compound filler, 5 to 8 parts of a silane coupling agent and 5 to 8 parts of sodium bicarbonate in parts by weight, adjusting the pH, then dropwise adding distilled water of which the volume is 1 to 2 times that of the pretreatment emulsion so as to obtain the special organosilicon waterproof agent for wood. The special organosilicon waterproof agent for wood provided by the invention has excellent waterproof performance.

Description

Technical field [0001] The invention discloses a preparation method of a special organic silicon waterproofing agent for wood, which belongs to the technical field of building materials. Background technique [0002] Wood waterproofing agent is a gray-white homogeneous translucent liquid, resistant to acid, alkali, hard water, strong water solubility, stable emulsion, no delamination when diluted with water in any proportion, no demulsification, no agglomeration, long shelf life, high solid content, dispersion Good sex. [0003] It is mainly used for wood waterproofing. It can be sprayed, soaked or heated and boiled. After drying the water, the waterproofing agent can penetrate into the fiber pores and form a waterproof layer on the surface of the wood to achieve a waterproof effect. [0004] Silicone-based hydrophobic materials can not only maintain the normal air permeability of the wall, but also have excellent high and low temperature resistance, weather resistance, water resist...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D183/07C09D183/06C09D183/05C09D7/61C09D7/65
CPCC09D183/04C08L2205/025C08L2205/035C09D7/61C09D7/65C09D7/70C08L83/06C08L83/04C08L29/04C08L1/02C08K3/042
Inventor 刘茂龙兰梅菊朱东东
Owner FOSHAN WANYANG BIOLOGICAL TECH CO LTD
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