Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

A lignin sand-fixing agent suitable for erosion control of collapsing hills

A technology of lignin and sand-fixing agent, applied in application, other chemical processes, agriculture, etc., can solve the problems of easy disintegration of soil, maintaining ecological environment, and inability to soil, so as to improve soil strength and cohesion, and improve the overall Strength, the effect of promoting vegetation growth

Active Publication Date: 2021-05-25
FUJIAN GEOLOGICAL ENG SURVEY INST
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main difficulty in the control of collapsed hillock erosion lies in its high content of coarse particles and poor soil water retention, which leads to the fact that the soil in the collapsed hillock erosion area is easily disintegrated and the vegetation is not easy to grow and develop, so that the collapsed hillock erosion is difficult to recover naturally
In addition, there are a large number of collapsed surfaces in the collapsing area, and these collapsed surfaces are often relatively steep. Conventional sand-fixing agent products are not easy to capture, making the application of sand-fixing agents difficult.
[0003] Existing soil sand-fixing agents are mainly for roads and construction projects. This type of sand-fixing agent will penetrate into cement and other hydraulic materials. The main improvement is the hardening of sand, which cannot maintain the original ecological environment of the soil. In the control of the Benggang erosion area: the Chinese patent with the publication number CN107032710A discloses a composite soil sand-fixing agent, and the Chinese patent with the publication number CN107973571A discloses a soil curing agent. Although the above-mentioned soil sand-fixing agent can improve the soil structure and improve the strength of the soil, but because this soil curing agent will also penetrate into cement and other hydraulic materials, it cannot ensure the soil's resistance to disintegration while still maintaining the original ecological environment of the soil

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A lignin sand-fixing agent suitable for erosion control of collapsing hills
  • A lignin sand-fixing agent suitable for erosion control of collapsing hills
  • A lignin sand-fixing agent suitable for erosion control of collapsing hills

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A lignin sand-fixing agent suitable for the prevention and control of collapsing hillock erosion, made of the following components in parts by weight: 55 parts of composite binder, 18 parts of fly ash, 15 parts of water-retaining agent and 5 parts of hydroxyethyl cellulose; The composite binder is prepared from 18 parts by weight of modified acid lignin, 25 parts of modified basic lignin and 25 parts of polyacrylamide, and the anion molecular weight of polyacrylamide is 3 million to 22 million.

[0029] Further, the water-retaining agent is a composite water-retaining agent, which is formed by mixing and cross-linking 8 parts by weight of calcium lignosulfonate and 7 parts of polyurethane.

[0030] Further, the modified acidic lignin is prepared from the following components in parts by weight: 10 parts of calcium lignosulfonate and 5 parts of acrylamide monomer.

[0031] Further, the modified alkaline lignin is prepared from the following components in parts by weight:...

Embodiment 2

[0038] A lignin sand-fixing agent suitable for the prevention and control of collapsing, which is made of the following components in parts by weight: 60 parts of composite binder, 20 parts of fly ash, 17 parts of water-retaining agent and 6 parts of hydroxyethyl cellulose; The composite binder is prepared from 20 parts by weight of modified acidic lignin, 20 parts of modified basic lignin and 27 parts of polyacrylamide, and the anion molecular weight of polyacrylamide is 3 million to 22 million.

[0039] Further, the water-retaining agent is a composite water-retaining agent, which is formed by mixing and cross-linking 9 parts by weight of sodium lignosulfonate and 8 parts of polyurethane.

[0040] Further, the modified acidic lignin is prepared from the following components in parts by weight: 15 parts of sodium lignosulfonate and 12 parts of acrylamide monomer.

[0041] Further, the modified alkaline lignin is prepared from the following components in parts by weight: 15 pa...

Embodiment 3

[0048] A lignin sand-fixing agent suitable for the erosion prevention and control of collapsed hillocks, made of the following components in parts by weight: 65 parts of composite binder, 19 parts of fly ash, 16 parts of water-retaining agent and 7 parts of hydroxyethyl cellulose; The composite binder is prepared from 27 parts by weight of modified acidic lignin, 15 parts of modified basic lignin and 15 parts of polyacrylamide, and the anionic molecular weight of polyacrylamide is 3 million to 22 million.

[0049] Further, the water-retaining agent is a composite water-retaining agent, which is formed by mixing and cross-linking 10 parts by weight of ammonium lignosulfonate and 9 parts by weight of polyurethane.

[0050] Further, the modified acidic lignin is prepared from the following components in parts by weight: 12 parts of lignosulfonate amine and 8 parts of acrylamide monomer.

[0051] Further, the modified alkaline lignin is prepared from the following components in pa...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a lignin sand-fixing agent suitable for the prevention and control of collapsing hillock erosion, which is made of the following components in parts by weight: 55-65 parts of composite binder, 18-20 parts of reinforcing agent, 15-17 parts of water-retaining agent and 5-7 parts of dispersant; the composite binder is formulated by weight parts of 15-27 parts of modified acidic lignin, 15-27 parts of modified alkaline lignin and 25-30 parts of polyacrylamide, The modified lignin sand-fixing agent is suitable for collapsing erosion areas, using sulfonated and modified lignin as the main raw material, and the lignin sand-fixing agent made not only has the sand-fixing, anti-erosion and anti-disintegration properties of general sand-fixing agents In addition, it can also maintain the original ecological environment of the soil.

Description

technical field [0001] The invention belongs to the technical field of soil and water conservation engineering materials, and in particular relates to a lignin sand-fixing agent suitable for erosion prevention and control of collapsed hillocks. Background technique [0002] Collapsing hillside is a phenomenon of water and soil erosion caused by soil and rocks on hillsides and erosion. It is widely distributed in southern my country, causing serious damage to cultivated land and reducing farmland production. Serious erosion of hillside collapse can also easily lead to geological disasters. The difficulty in the control of collapsed hillock erosion lies in the high content of coarse particles and the poor water retention of the soil, which leads to the fact that the soil in the collapsed hillock erosion area is easily disintegrated and the vegetation is not easy to grow and develop, so that the collapsed hillock erosion is difficult to recover naturally. In addition, there are...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C09K17/40C09K105/00
CPCC09K17/40C09K2105/00
Inventor 陈志超
Owner FUJIAN GEOLOGICAL ENG SURVEY INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products