Preparation method of waterproof and breathable organic interface agent for external wall heat insulation material

An external wall insulation and air-permeable technology, applied in coatings and other directions, can solve the problems of limited water-resistant strength and service life, hollowing and falling off of surface materials, and easy mildew, etc., to achieve strong waterproof performance, low cost, and high water retention. Effect

Inactive Publication Date: 2016-11-16
董晓
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to solve the problem that the interface agent of external wall insulation materials used in the market has poor air permeability, easy to mildew, resulting in hollowing and falling off of the surface material, limited water resistance and service life. , provides a method of processing and fermenting the rubber leaves separately to obtain a unifo

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0018] First, weigh 300g of fresh rubber leaves, after manual selection and removal of impurities, transfer them to a tissue grinder, crush them into 3cm, 0.8cm wide fragments, put them in a closed fermentation tank, and then add 80g of secondary sedimentation tank Activated sludge was stirred with a glass rod for 20 minutes, sealed and fermented for 14 hours, discharged to obtain mixed fermentation materials, and then the obtained fermentation materials were irradiated with ultraviolet light for 3 hours, then mixed with 300mL deionized water, added ultrasonic In the oscillator, vibrate for 30 minutes to obtain a uniform fermented slurry, and set aside; then weigh 500g of peach gum, wash it with deionized water for 5 times, transfer it to a beaker filled with 300mL of deionized water, and use a stirrer to Break it into a slurry at 1000r / min, then place the slurry in a microwave heater, heat it in a microwave with a power of 800W for 50min, then transfer it to a rotary evaporato...

example 2

[0021]First, weigh 200g of fresh rubber leaves, after manual selection and removal of impurities, transfer it to a tissue grinder, crush it into 1cm, 0.2cm wide fragments, put it in a closed fermentation tank, and then add 50g of secondary sedimentation tank Activated sludge, stirred with a glass rod for 10 minutes, closed fermentation treatment for 10 hours, discharged to obtain mixed fermentation materials, and then placed the obtained fermentation materials under ultraviolet light for 2 hours, then mixed with 200mL deionized water, added ultrasonic In the oscillator, vibrate for 20 minutes to obtain a uniform fermented slurry, and set aside; then weigh 300g of peach gum, wash it with deionized water for 3 times, transfer it to a beaker filled with 200mL of deionized water, and use a stirrer to Break it into a slurry at 800r / min, then place the slurry in a microwave heater, heat it in a microwave with a power of 700W for 30min, then transfer it to a rotary evaporator, and con...

example 3

[0024] First, weigh 250g of fresh rubber leaves, after manual selection and removal of impurities, transfer it to a tissue grinder, crush it into 2cm, 0.6cm wide fragments, put it in a closed fermentation tank, and then add 70g of secondary sedimentation tank Activated sludge, stirred with a glass rod for 15 minutes, closed fermentation treatment for 13 hours, discharged to obtain mixed fermentation materials, and then placed the obtained fermentation materials under ultraviolet light for 2 hours, then mixed with 250mL deionized water, added ultrasonic In the oscillator, vibrate for 25 minutes to obtain a uniform fermented slurry and set aside; then weigh 410g of peach gum, wash it with deionized water for 4 times, transfer it to a beaker filled with 250mL of deionized water, and use a stirrer to Break it into a slurry at 900r / min, then place the slurry in a microwave heater, heat it in a microwave with a power of 750W for 40min, then transfer it to a rotary evaporator, and con...

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Abstract

The invention relates to a preparation method of an organic interface agent for a waterproof and breathable external wall thermal insulation material, and belongs to the technical field of material preparation. In the present invention, the rubber leaves are firstly processed and fermented separately to obtain a uniformly fermented slurry, and then the peach gum is processed to prepare the peach gum slurry, and then the coconut shell is carbonized to make the surface loose and porous, and the evenly fermented slurry is obtained. Stir and mix with peach pulp and other substances, and finally cool it rapidly with liquid nitrogen, so that the internal pores shrink rapidly, forming a microporous interface and fixing the active ingredients. The organic interface agent of the waterproof and breathable external wall thermal insulation material prepared by the invention has good air permeability, and the water vapor wet flow density is 6.5-8.5g/(m 2 · h); and has strong waterproof performance, the 7-day impermeability pressure is 1.0-1.5 MPa; water retention performance, the water retention is higher than 60%, and the preparation steps are simple and the required cost is low.

Description

technical field [0001] The invention relates to a preparation method of an organic interface agent for a waterproof and breathable external wall thermal insulation material, and belongs to the technical field of material preparation. Background technique [0002] In the past two years, a large number of inorganic insulation products such as foamed ceramic boards, composite cement foam boards, and rock wool boards have appeared on the market to replace polystyrene insulation materials. Although these products have excellent fireproof performance, they have their respective shortcomings such as poor thermal insulation performance, low strength, high water absorption, and low production capacity. In order to solve these problems, it is necessary to coat a layer of interface agent on the surface of the insulation material to improve the performance of the insulation material. [0003] The interface agent treats the surface of the object, which may be physical adsorption or coat...

Claims

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Application Information

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IPC IPC(8): C09D105/00C09D7/12
CPCC09D105/00C08K3/04C08K5/00C09D7/61C09D7/63
Inventor 董晓薛培龙许博伟
Owner 董晓
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