Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method of aluminosilicate composite rubber sealing material

A technology of aluminosilicate and sealing materials, which is applied in the field of preparation of aluminosilicate composite rubber sealing materials, can solve environmental pollution and other problems, and achieve the effects of uniform texture, small particle size, and simple preparation method

Inactive Publication Date: 2019-09-20
ZHEJIANG SCI-TECH UNIV
View PDF2 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most enterprises choose to stack or discharge the aluminosilicate (i.e., silicon slag) produced in the process of silicon removal into the environment, causing unnecessary environmental pollution, so it is necessary to recycle this kind of waste

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
  • Preparation method of aluminosilicate composite rubber sealing material
  • Preparation method of aluminosilicate composite rubber sealing material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] The first step: add a certain amount of aluminum salt to the bamboo pulp green liquor according to the ratio of silicon to aluminum molar ratio of 1:0.5 (dropping speed 1 ml / min), heat the reaction temperature in a water bath at 25 ℃, and use a stirrer to continue during the reaction Stirring, stirring speed 200 r / min, stirring time 10 min. After the reaction is over, filter out the precipitate, wash it repeatedly with clear water until it becomes neutral, and finally wash it with ethanol, and dry it at 50°C to obtain aluminosilicate powder, which can be seen figure 1 and figure 2 .

[0025] Step 2: Add the prepared aluminosilicate to water, add sodium polyacrylate dispersant with a mass ratio of 0.5% relative to the aluminosilicate, and stir ultrasonically for 3 minutes to make aluminosilicate with a concentration of 5%. suspension.

[0026] The third step: take 6% of the bleached coniferous wood fiber relative to the mass percentage of the total raw material, add ...

Embodiment 2

[0029] Step 1: Add a certain amount of aluminum salt (drop rate 1.5 ml / min) to the bamboo pulp green liquid according to the ratio of silicon to aluminum molar ratio of 1:1. Heat the reaction temperature in a water bath at 40 ° C. During the reaction, use a stirrer to continue Stirring, stirring speed 300 r / min, stirring time 15 min. After the reaction, the precipitate was filtered out, washed repeatedly with water until neutral, finally washed with ethanol, and dried at 50°C to obtain aluminosilicate powder.

[0030]Step 2: Add the prepared aluminosilicate to water, add a sodium polyacrylate dispersant with a mass ratio of 1% relative to the aluminosilicate, and stir ultrasonically for 5 minutes to prepare an aluminosilicate with a concentration of 7%. suspension.

[0031] The third step: take 8% bleached coniferous wood fiber relative to the mass percentage of the total raw material, add 8% aramid fiber relative to the mass percentage of the total raw material, add 6% miner...

Embodiment 3

[0034] The first step: add a certain amount of aluminum salt to the bamboo pulp green liquor according to the ratio of silicon to aluminum molar ratio of 1:1.5 (dropping speed 2 ml / min), heat the reaction temperature in a water bath at 60 ℃, and use a stirrer to continue during the reaction Stirring, the stirring speed is 400 r / min, and the stirring time is 20 min. After the reaction, the precipitate was filtered out, washed repeatedly with water until neutral, finally washed with ethanol, and dried at 50°C to obtain aluminosilicate powder.

[0035] Step 2: Add the prepared aluminosilicate to water, add sodium polyacrylate dispersant with a mass ratio of 1.5% relative to the aluminosilicate, and stir ultrasonically for 7 minutes to prepare aluminosilicate with a concentration of 9%. suspension.

[0036] The third step: take 10% of the bleached coniferous wood fiber relative to the mass percentage of the total raw material, add 10% of the aramid fiber relative to the mass perc...

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

No PUM Login to View More

Abstract

The invention relates to a preparation method of an aluminosilicate composite rubber sealing material. The method comprises the following steps: 1) adding aluminum salt into bamboo pulp green liquor and performing a reaction under a water bath condition; 2) after the reaction is finished, filtering out a precipitate, repeatedly washing the precipitate with clear water until the precipitate is neutral, finally washing the precipitate with ethanol, and drying the precipitate to obtain aluminosilicate powder; 3) then mixing aluminosilicate with sodium polyacrylate to prepare an aluminosilicate suspension, mixing and defibering coniferous wood fibers, aramid fibers and mineral fibers, sequentially adding calcium carbonate, diatomite and aluminosilicate suspension, adding aluminum sulfate, styrene-butadiene latex and a sulfur dispersion, and adjusting the water filtering performance of the slurry by using cationic polyacrylamide and bentonite; 4) performing papermaking on a papermaking machine and squeezing, drying and vulcanizing the paper to obtain the sealing material. The aluminosilicate can be well filled in a network structure formed by fibers and latex and is tightly combined with the fibers and the latex, so that the compression resilience of the sealing material is remarkably improved.

Description

technical field [0001] The invention belongs to the intersection field of rubber industry and papermaking industry, and relates to a method for preparing an aluminosilicate composite rubber sealing material obtained by removing silicon from bamboo pulp green liquor. Background technique [0002] The sealing material is a material that can prevent the leakage and intrusion of the medium and the impact of the contacting machinery, so as to achieve the functions of sealing and insulation. It is widely used in the sealing of aircraft, ships, rocket propellers and pipeline connections. very important material. In addition to non-asbestos fibers, latex and other additives in non-asbestos rubber sealing materials, another main component is various fillers, about 50%. [0003] The role of the filler in the rubber sealing material is to improve the performance of the sheet, facilitate operation, and greatly reduce material costs. Their properties and content have a direct impact on...

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
IPC IPC(8): C08L9/06C08L97/02C08L77/10C08K13/06C08K3/34C08K7/04C08K3/26C08K7/26C08K3/06
CPCC08K2003/265C08L9/06C08L2205/035C08L2205/16C08L97/02C08L77/10C08K13/06C08K3/34C08K7/04C08K3/26C08K7/26C08K3/06C08K3/346
Inventor 夏新兴曹煜成黄善聪潘娇静王希运胡京明
Owner ZHEJIANG SCI-TECH UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com