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High-strength wear-resistant natural rubber composite material and preparation method thereof

A natural rubber and composite material technology, applied in the field of natural rubber products, can solve the problems of short service life, unsatisfactory wear resistance, low strength, etc., and achieve improved dispersion, reduced winding, high tensile strength and wear resistance Effect

Pending Publication Date: 2021-02-05
侯光宇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, traditional natural rubber materials often have problems such as low strength, unsatisfactory wear resistance, and short service life during use, which brings a lot of inconvenience to actual use.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A high-strength wear-resistant natural rubber composite material, comprising the following raw materials in parts by weight: 98 parts of natural rubber, 12 parts of epoxidized natural rubber, 10 parts of modified silicon nitride, 8 parts of microcrystalline muscovite powder, modified 9 parts of rocky nanotubes, 8 parts of nanocrystalline cellulose, 4 parts of calcium sulfate whiskers, 3 parts of lignocellulose short fibers, 7 parts of aramid short fibers, 2 parts of zinc borate, 3 parts of neodymium stearate, 1 part of agent, 2 parts of sulfur;

[0025] Wherein, the preparation of modified silicon nitride comprises the following steps: adding silicon nitride to the mixed solution of absolute ethanol, silane coupling agent KH550 and water, stirring, and ultrasonically dispersing for 30 minutes to obtain a silicon nitride dispersion, heating to 75°C, keep warm for 5 hours, after the reaction, filter, wash, and dry to obtain a silane coupling agent-modified silicon nitride...

Embodiment 2

[0029] A high-strength wear-resistant natural rubber composite material, comprising the following raw materials in parts by weight: 95 parts of natural rubber, 15 parts of epoxidized natural rubber, 12 parts of modified silicon nitride, 4 parts of microcrystalline muscovite powder, modified 10 parts of rocky nanotubes, 8 parts of nanocrystalline cellulose, 9 parts of calcium sulfate whiskers, 4 parts of lignocellulose short fibers, 7 parts of aramid short fibers, 3 parts of zinc borate, 5 parts of neodymium stearate, 2 parts of agent, 1.5 parts of sulfur;

[0030]Wherein, the preparation of modified silicon nitride comprises the following steps: adding silicon nitride to the mixed solution of absolute ethanol, silane coupling agent KH570 and water, stirring, and ultrasonically dispersing for 30 minutes to obtain a silicon nitride dispersion, heating to 70°C, heat preservation reaction for 5 hours, after the reaction, filter, wash, and dry to obtain a silane coupling agent-modi...

Embodiment 3

[0033] A high-strength wear-resistant natural rubber composite material, comprising the following raw materials in parts by weight: 92 parts of natural rubber, 12 parts of epoxidized natural rubber, 8 parts of modified silicon nitride, and microcrystalline muscovite powder (the preparation method is the same as that in Example 1) 8 parts, 5 parts of modified halloysite nanotubes, 3 parts of nanocrystalline cellulose, 7 parts of calcium sulfate whiskers, 3 parts of lignocellulose short fibers, 8 parts of aramid short fibers, 4 parts of zinc borate, 6 parts of neodymium stearate, 1 part of accelerator, 2.5 parts of sulfur;

[0034] Wherein, the preparation of modified silicon nitride comprises the following steps: adding silicon nitride to the mixed solution of absolute ethanol, silane coupling agent KH550 and water, stirring, and ultrasonically dispersing for 25 minutes to obtain a silicon nitride dispersion, heating to 75°C, keep warm for 3 hours, after the reaction, filter, w...

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PUM

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Abstract

The invention discloses a high-strength wear-resistant natural rubber composite material and a preparation method thereof. The rubber material is prepared from the following raw materials: natural rubber, epoxidized natural rubber, modified silicon nitride, microcrystalline white mica powder, modified halloysite nanotubes, nano microcrystalline cellulose, calcium sulfate whiskers, lignocellulose staple fibers, aramid staple fibers, zinc borate, neodymium stearate, an accelerant and sulfur. The natural rubber and epoxidized natural rubber are used as main materials, lignocellulose staple fibersand aramid staple fibers are added into a system at the same time, are uniformly dispersed in the system, have good adhesiveness with the system, and are matched with modified silicon nitride, microcrystalline white mica powder, modified halloysite nanotubes, calcium sulfate whiskers and nano microcrystalline cellulose, a significant role in enhancing wear resistance is realized, and the tensilestrength, tearing strength and wear resistance of the composite material are remarkably improved while the vulcanization characteristic of the rubber compound is maintained.

Description

technical field [0001] The invention relates to the technical field of natural rubber products, in particular to a high-strength wear-resistant natural rubber composite material and a preparation method. Background technique [0002] Natural rubber is a natural polymer compound with cis-1,4-polyisoprene as the main component, and 91% to 94% of its components are rubber hydrocarbons (cis-1,4-polyisoprene) , and the rest are non-rubber substances such as protein, fatty acid, ash, and sugar. Natural rubber has excellent properties such as resilience, insulation, water resistance and plasticity, and has been widely used in daily life, medical care, transportation, industry, agriculture and other fields. With the development of the economy, various fields have stricter and more diverse requirements on the performance indicators of natural rubber, such as insulation, tensile strength, heat resistance, flame retardancy, strength, wear resistance and other indicators. requirements...

Claims

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Application Information

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IPC IPC(8): C08L7/00C08L15/00C08L1/04C08L97/02C08L77/10C08K13/06C08K9/06C08K9/04C08K7/00C08K3/34C08K7/26C08K3/38C08K5/098C08K3/06C08K7/08
CPCC08L7/00C08K2201/011C08L2205/16C08L2205/035C08K2003/387C08L15/00C08L1/04C08L97/02C08L77/10C08K13/06C08K9/08C08K9/06C08K9/04C08K7/00C08K3/34C08K7/26C08K3/38C08K5/098C08K3/06C08K7/08
Inventor 侯光宇
Owner 侯光宇
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