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Cured composite material and sand-fixing method for plant greening

A composite material and chemical curing technology, applied in chemical instruments and methods, soil conditioning materials, applications, etc., can solve the problems of easy oxidative degradation, poor stability, etc., achieve fertilizer retention, water evaporation, convenient construction, and improve resistance to UV degradation The effect of the ability

Inactive Publication Date: 2011-07-13
JCK +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of cured composite material for vegetation greening with controllable ultraviolet degradation and its sand-fixing method for vegetation greening, to overcome the poor stability and easy oxidation of hydrophilic polyurethane resin chemical curing materials in the prior art under strong ultraviolet radiation Degradation defects are controlled by ultraviolet degradation to form a high-durability chemical consolidation layer with good durability and water retention, which can prevent wind erosion and realize vegetation greening. The degradation cycle of the consolidation layer can be controlled for more than 30 years, providing long-term stability for plants. growth environment, to achieve sand fixation and sustainable ecological environment restoration

Method used

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  • Cured composite material and sand-fixing method for plant greening
  • Cured composite material and sand-fixing method for plant greening
  • Cured composite material and sand-fixing method for plant greening

Examples

Experimental program
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Effect test

Embodiment 1

[0046] 1. Production of sand body model

[0047] The production method of the test body: put Toyoura standard sand (Toyoura Silica Mining Co., Ltd., density 2.6g / cm2) into a cylindrical abrasive tool (diameter 50mm*height 100mm) 3 ). The thickness of the actually loaded sand is 50mm. The porosity is 40%.

[0048] 2. Preparation of cured composite material for plant greening containing ultraviolet degradation control agent W-US1

[0049] The W-OH chemical sand-fixing material, water and ultraviolet degradation control agent W-US1 are mixed according to the proportions of Examples 1A-1D in Table 2 in the cured composite material for vegetation greening containing ultraviolet degradation control agent W-US1.

[0050] 3. Spray the above-mentioned solidified composite material for vegetation greening on the surface of the prepared sand body model with a special Y-shaped tube mechanical equipment, and form a porous consolidation layer with a thickness of 5-50mm on the surface of ...

Embodiment 2

[0059] Except that the ultraviolet degradation control agent W-US2 is used to replace the ultraviolet degradation control agent W-US1 in the cured composite material for vegetation greening, all the others are the same as in Example 1, and each composition is mixed according to the ratio of Examples 2A-2D in Table 3. The test results are recorded in Table 3.

Embodiment 3

[0065] Except that the ultraviolet degradation control agent W-UA3 is used to replace the ultraviolet degradation control agent W-US1 in the cured composite material for vegetation greening, all the others are the same as in Example 1, and each composition is mixed according to the ratio of Examples 3A-3D in Table 4. The test results are recorded in Table 4.

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Abstract

The invention provides a cured composite material and a sand-fixing method for plant greening, a functional water soluble polyurethane composite cured material is prepared by composite reaction of a water soluble polyurethane resin chemical cured material (W-OH) and an ultraviolet degradation control agent, thereby greatly improving ultraviolet degradation resistance capability of the composite cured material, and degradation period of the composite cured material can be controlled. The ultraviolet degradation control agent comprises benzotriazole, benzophenone ultraviolet ray absorbent, and hindered amine and hindered phenol ultraviolet ray stabilizer. The cured composite material is sprayed to a sand surface with a spread plant greening composition, and a porous structured bonding layer is quickly formed on the desert surface, the bonding layer is advantaged by better air permeability, water conservation, and fertilizer-keeping characteristics, suitability for plant growth, realization of controlling more than 30 years of degradation period, and gradual realization of ecological environment remediation during sand-fixing.

Description

technical field [0001] The invention relates to a chemical sand-fixing composite material and a sand-fixing method thereof, in particular to a curing composite material for vegetation greening in desert areas irradiated by strong ultraviolet rays and a sand-fixing method for vegetation greening. Background technique [0002] Desertification is one of the most serious environmental and ecological problems in the world at present. It is related to the survival and sustainable development of human beings and is a common challenge faced by all countries in the world. According to the statistics of the United Nations Environment Program (1991), there are about 36 million square kilometers of desertified land in the world, involving more than 100 countries and regions, accounting for 1 / 4 of the global land area. my country is one of the countries with large desertification land area and serious damage in the world. According to the estimation of the State Forestry Administration (...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40E02D3/12C09K105/00
CPCY02A40/22
Inventor 吴智仁吴智深高卫民杨才千岩下健太郎稻垣广人
Owner JCK
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