Matrix material for making green by planting on housetop and preparation process thereof

A base material and roof greening technology, applied in the fields of botanical equipment and methods, soilless cultivation, cultivation, etc., can solve the problems of inability to resist natural disasters, high maintenance costs, complicated procedures, etc., and improve the urban landscape and environmental energy conditions. , the effect of low production cost and simple production process

Inactive Publication Date: 2008-09-17
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the base materials used for roof greening at home and abroad mainly include: grass ash, perlite, vermiculite; foamed glass, foamed ceramics; improved soil, artificial soil, lightweight soil, etc.; most of them have such problems, such as large capacity , complex process, high cost, poor integrity, unable to resist natural disasters, etc.; however, the trend of roof greening substrate materials is lightweight integration
At the same time, there are still some problems in the current green roof plants, such as the need for sufficient fertilizer efficiency, high water content, manual care, and high maintenance costs.

Method used

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  • Matrix material for making green by planting on housetop and preparation process thereof
  • Matrix material for making green by planting on housetop and preparation process thereof
  • Matrix material for making green by planting on housetop and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as figure 1 As shown, according to weak base (8.0)-weak acid (5.5)-weak base (8.0) traditional process modified synthetic urea-formaldehyde resin, wherein the weight ratio of raw material urea: formaldehyde: glycerol: hydroxy acrylate is 60: 120: 20: 15 ; In the weak base-weak acid-weak base process, the temperature is controlled at 40°C, 90°C, and 60°C respectively, and the time is controlled at 30-60min, 50-70min, and 30-45min; among them, formaldehyde is put in at one time, and urea is added in 3 times ( The mass ratio is 6:3:1), glycerin and hydroxyacrylate are added while adding the second batch of urea; the acid-base adjustment (PH regulator) in the synthesis process is formic acid and a weight concentration of 10% sodium hydroxide solution; Modified urea-formaldehyde resin was obtained.

[0034] The urea-formaldehyde resin foaming solution is composed of water, sodium dodecylbenzenesulfonate, alkyl alcohol polyoxyethylene (1-4) ammonium sulfate, potassium ...

Embodiment 2

[0041] According to weak base (7.5)-weak acid (4.5)-weak base (8.5) traditional process modified synthetic urea-formaldehyde resin, wherein the weight ratio of raw material urea: formaldehyde: polyvinyl alcohol: hydroxy acrylate is 60: 120: 3: 15; In the weak base-weak acid-weak base process, the temperature is controlled at 50°C, 85°C, and 65°C respectively, and the time is controlled at 30-60min, 50-70min, and 30-45min; among them, formaldehyde is added at one time, and urea is added in three times (mass Ratio is 4:5:1), polyvinyl alcohol and hydroxyacrylate are dropped into while adding the second batch of urea; acid-base adjustment (PH regulator) is formic acid and weight concentration is 10% sodium hydroxide solution; obtains modified Urea-formaldehyde resin.

[0042] The urea-formaldehyde resin foaming liquid is composed of water, sodium dodecylbenzenesulfonate, sodium nonylphenol polyoxyethylene (4) ether sulfate, potassium dihydrogen phosphate, potassium chloride, oxal...

Embodiment 3

[0049] According to the weak base (7.0)-weak acid (5.0)-weak base (8.5) process to modify and synthesize urea-formaldehyde resin, wherein the weight ratio of raw material urea: formaldehyde: glycerin: polyvinyl alcohol is 60: 100: 25: 4; weak base- In the weak acid-weak base process, the temperature is controlled at 60°C, 90°C, and 65°C respectively, and the time is controlled at 30-60min, 50-70min, and 30-45min; among them, formaldehyde is put in at one time, and urea is added in three times (mass ratio is 4 : 5: 1), glycerin and hydroxyacrylic acid ester are input while adding the second batch of urea; acid-base adjustment (PH regulator) is formic acid and weight concentration is 10% sodium hydroxide solution; Modified urea-formaldehyde resin is obtained.

[0050] The urea-formaldehyde resin foaming liquid is composed of water, alkyl alcohol polyoxyethylene (1-4) ammonium sulfate, nonylphenol polyoxyethylene (4) ether sodium sulfate, potassium dihydrogen phosphate, potassium ...

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Abstract

This invention relates to a roofing greening base material and the method. Its main primary materials includes 10-35 portions foam urea formaldehyde fertilizer adhesive, 40-95 portions natural fabric, 1-5 portions polymer water absorption agent. The foam urea formaldehyde fertilizer adhesive is made by frothing modified urea-formaldehyde resin and urea-formaldehyde resin blowing agent in frother, at a quality proportion of 100-150:40-60.

Description

Technical field: [0001] The invention relates to a roof greening matrix material and a preparation method thereof. Background technique: [0002] Scientific research shows that green roofs can not only beautify the city, but more importantly, it has become an effective means to reverse the situation of environmental degradation, and it also provides an effective way to save energy. However, my country's roof greening is affected by many factors such as capital, technology, and materials, and its development is relatively slow, making most of the city's roofs facing the sky. At present, the base materials used for roof greening at home and abroad mainly include: grass ash, perlite, vermiculite; foamed glass, foamed ceramics; improved soil, artificial soil, lightweight soil, etc.; most of them have such problems, such as large capacity , complex process, high cost, poor integrity, unable to resist natural disasters, etc.; however, the trend of roof greening matrix materials i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L61/24C08L97/02C08J9/00A01G31/00
Inventor 王勇张铭
Owner WUHAN UNIV OF TECH
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