Clay powder for improving vulcanization processability of rubber and preparation method for same

A processing performance, rubber vulcanization technology, applied in the direction of dyeing organosilicon compound treatment, dyeing low molecular organic compound treatment, fibrous filler, etc. Small problems, to achieve the effects of easy spray drying, reduced energy consumption, and easy dissociation

Active Publication Date: 2013-06-12
ZAOZHUANG SANXING ADVANCED MATERIALS
View PDF4 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Because there is no isomorphic replacement in the crystal lattice of kaolin, the interlayer charge is almost zero, and no external cations can be adsorbed in the interlayer domain. These characteristics make kaolin not easy to be stripped and refined and chemically modified; and bentonite has strong water absorption, and the existence of water molecules destroys the interface between the modified soil and rubber macromolecules. As a result, the physical and mechanical properties of synthetic rubber are affected; moreover, the energy consumption of bentonite and rubber is high during mixing, and the vulcanization time is long, so the filling amount of bentonite can only be limited to a low level

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
  • Clay powder for improving vulcanization processability of rubber and preparation method for same
  • Clay powder for improving vulcanization processability of rubber and preparation method for same
  • Clay powder for improving vulcanization processability of rubber and preparation method for same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Take 1 kg of kaolin raw material and 1 kg of sodium bentonite raw material, and mix them evenly. Make a suspension of uniformly mixed clay powder and water at a solid content of 20%, add 20g (1.0% of the mass of the clay powder) of sodium polyacrylate as a dispersant, and stir in a mechanical stirrer for 0.5h at a stirring speed of 600r / Min, to fully disperse the clay powder in water; set aside for 10 hours, extract the suspension in the upper layer, put the suspension into a grinding and peeling machine and stir at a high speed for 1 hour at a stirring speed of 1000r / min. Then weigh the medium balls with the same mass as the suspension. The particle diameters of the medium balls are 0.6~0.8mm, 0.8~1.0mm, 1.0~1.2mm respectively, and the ratio is 3:2:1. The rotating speed of the grinding and peeling machine is 1200r / min, and the grinding and peeling time is 1.5h. Filter and extract the ground and stripped slurry; spray dry the extracted slurry to obtain a compound clay...

Embodiment 2

[0032]Take 2 kg of kaolin raw material and 1 kg of sodium bentonite raw material, and mix them evenly. Make the uniformly mixed clay powder and water into a suspension with a solid content of 25%, add 24g (0.8% of the mass of the clay powder) of sodium polyacrylate as a dispersant, and stir in a mechanical stirrer for 0.5h at a stirring speed of 500r / Min, to fully disperse the clay powder in water; set aside for 10 hours, extract the suspension in the upper layer, put the suspension into a grinding and peeling machine and stir at a high speed for 1 hour at a stirring speed of 1000r / min. Then weigh the medium balls with the same mass as the suspension. The particle diameters of the medium balls are 0.6~0.8mm, 0.8~1.0mm, 1.0~1.2mm respectively, and the ratio is 3:2:1. The rotating speed of the grinding and peeling machine is 1200r / min, and the grinding and peeling time is 1.5h. Filter and extract the ground and stripped slurry; spray dry the extracted slurry to obtain a compou...

Embodiment 3

[0034] Take 4 kg of kaolin raw material and 1 kg of calcium-based bentonite raw material, and mix them evenly. Make a suspension of uniformly mixed clay powder and water at a solid content of 30%, add 30g (0.6% of the mass of the clay powder) of sodium polyacrylate as a dispersant, and stir in a mechanical stirrer for 0.5h at a stirring speed of 500r / Min, to fully disperse the clay powder in water; set aside for 10 hours, extract the suspension in the upper layer, put the suspension into a grinding and peeling machine and stir at a high speed for 1 hour at a stirring speed of 1000r / min. Then weigh the medium balls with the same mass as the suspension. The particle diameters of the medium balls are 0.6~0.8mm, 0.8~1.0mm, 1.0~1.2mm respectively, and the ratio is 3:2:1. The rotating speed of the grinding and peeling machine is 1200r / min, and the grinding and peeling time is 2h. Filter and extract the milled and stripped slurry; spray dry the extracted slurry to obtain a compound...

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 clay powder for improving the vulcanization processability of rubber and a preparation method for the same, wherein the average diameter of the grains of the clay powder disclosed by the invention is 1.5-2.0 mum, the average diameter of the grain lamellar structure of the powder is 600-800 nm, and the average thickness of the lamellar structure is 50-200 nm. The clay powder is composed of the following components in parts by weight: 50-80 parts of kaolin, 20-50 parts of bentonite, 0.5-2.0% of dispersant and 0.5-2.0% of surface modifier, wherein the dispersant is one or more in sodium polyacrylate, sodium hexametaphosphate and sodium silicate, and the surface modifier is one or more in a titanate coupling agent, a silane coupling agent and fatty acid salt. The preparation method is the traditional stirring and grinding method. With the clay powder, the vulcanization time of rubber can be shortened, the vulcanization time is increased, and the processability of rubber is improved; simultaneously, the good mechanical performances of tensile strength, stretching strength and the like of rubber materials can be contributed.

Description

technical field [0001] The invention relates to the technical field of processing clay mineral materials, in particular to a clay powder for improving the vulcanization processing performance of rubber compounds and a preparation method thereof. Background technique [0002] Clay mineral is a kind of silicate mineral with special layered structure and natural nanoscale. After ultrafine treatment and organic modification, the prepared clay / polymer composite has excellent mechanical properties, good Clay minerals have excellent thermal stability, gas-liquid barrier performance and weather resistance, etc., and clay minerals are abundant in reserves, low in price, and have little pollution and impact on the environment, so they have become one of the research hotspots in the field of materials. Kaolin and bentonite are two of the most typical clay minerals, and they are also the most studied clay species in the field of materials today. Their special layered structure and inter...

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): C08K9/04C08K9/06C08K7/00C08K3/34C08L9/06C09C1/42C09C3/04C09C3/08C09C3/12
Inventor 吉雷波张印民张学法林学洲
Owner ZAOZHUANG SANXING ADVANCED MATERIALS
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
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap