A kind of coral sand permeable material and preparation method thereof
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A water-permeable material, coral sand technology, applied in the field of composite materials, can solve the problems of low temperature resistance, salt spray resistance, poor water resistance, high hygroscopicity, etc., and achieve the effect of good water permeability, large porosity, and high edge angle
Active Publication Date: 2021-03-09
BEIJING RECHSAND SCI & TECH GRP
View PDF11 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
[0004] The technical problem to be solved by the present invention is to overcome the problems of high hygroscopicity, poor water resistance, high temperature resistance and salt spray resistance of bricks made of coral sand with rich pore structure in the prior art, and to provide a water-resistant and salt-resistant brick. Fog, high temperature resistant coral sand permeable material
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
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0032] The coral sand permeable material provided in this embodiment includes 100 g of coral sand particles with a particle size ranging from 50 to 200 mesh, 20 g of cement, 5 g of hydrophilic epoxy resin, 2 g of dopamine, and 8 g of silica gel adhesive.
[0033] The preparation method is as follows: screen coral sand particles, collect 100g of coral sand particles in the range of 50-200 meshes, 2g of dopamine, mix with 20g of cement and an appropriate amount of water, add 5g of hydrophilic epoxy resin and corresponding curing agent, and stir After mixing evenly, add 8g of silicone adhesive, mix evenly and solidify.
Embodiment 2
[0035] The coral sand permeable material provided in this embodiment includes 100 g of coral sand particles with a particle size in the range of 50 to 200 mesh, 20 g of styrene-acrylic emulsion, 3 g of hydrophilic epoxy resin, 2 g of dopamine, 1 g of EDTA and 8 g of silica gel adhesive.
[0036] The preparation method is as follows: screen the coral sand particles, collect 100g of coral sand particles in the range of 50-200 meshes, 1g of EDTA, mix with 20g of styrene-acrylic emulsion, add 3g of hydrophilic epoxy resin and corresponding curing agent, and stir until the mixture is uniform , and then add 8g of silica gel adhesive to cure.
Embodiment 3
[0038] The coral sand permeable material provided in this embodiment includes 100 g of coral sand particles with a particle size ranging from 50 to 200 mesh, 15 g of kaolin, 3 g of polyurethane resin, 4 g of EDTA, and 11 g of cyanoacrylate adhesive.
[0039] The preparation method is as follows: screen the coral sand particles, collect 100g of coral sand particles in the range of 50-200 mesh, mix them with 15g of kaolin and 4g of EDTA, and then add 3g of polyurethane resin and corresponding curing agent, stir until mixed evenly, and then add Cyanoacrylate 11g, cured.
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
Property
Measurement
Unit
particle size (mesh)
aaaaa
aaaaa
Login to view more
Abstract
The invention belongs to the field of composite materials, and in particular relates to a coral sand permeable material and a preparation method thereof. Coral sand is produced by marine microorganisms through long-term evolution. It is a biochemical sedimentary rock. It is completely different from the desert silica sand used to prepare permeable ecological sand in the prior art. It has poor sphericity, high angularity, and porosity. Due to the high rate and other characteristics, it is impossible to use conventional technical means to prepare coral sand blocks to achieve ideal performance effects. However, the present invention obtains a coral sand block that is both permeable and resistant to salt spray through a specific proportion of coral sand particles, fillers, coating agents, additives and adhesives, and limits the size of the coral sand particles to 50-200 mesh. The filler may be one or more of cement, styrene-acrylic emulsion, silicon-acrylic emulsion, kaolin and rosin. Among them, the most preferred filler is a mixed filler of kaolin and rosin. When this filler is selected, the pressure resistance of the obtained coral sand permeable material can reach the best.
Description
technical field [0001] The invention belongs to the field of composite materials, and in particular relates to a coral sand permeable material and a preparation method thereof. Background technique [0002] Remote islands and reefs are located in tropical areas, coral reefs and sandy islands, short of fresh water, and far away from the land. The primary problem of building various engineering facilities on islands and reefs is the lack of building materials such as gravel and river sand, and fresh water for construction is also very scarce; if These materials are transported from land, which not only prolongs the construction period, but also has high transportation costs, and may also be limited by natural conditions such as wind and waves; Ideal material for island construction. [0003] There have been many reports on the foundation backfilling of the yard behind the wharf, and have achieved great technical and economic effects. However, the special geographical location...
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
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more