Rubber Chem Encyclopedia

Application of five common nano-powder materials in reclaimed rubber products

Create Date:2022-03-22 13:56:31Click volume:2483
Application of five common nano-powder materials in reclaimed rubber products

Nanotechnology is mainly a technology that studies the properties and applications of materials with a structure size in the range of 1 nanometer to 100 nanometers. In the rubber industry, nano-powder materials are widely used, especially in reinforcing agents and fillers. When using reclaimed rubber to produce rubber products, rational use of nano-powder materials can not only ensure product quality, but also facilitate control of raw material costs. In actual production, the commonly used nano-powder materials for reclaimed rubber products are carbon black, silica, nano-calcium carbonate, nano-zinc oxide and nano-clay.

1. Application of carbon black in reclaimed rubber products

In actual production, the particle size of furnace carbon black and channel carbon black reaches nano-scale, with fine particles, large specific surface area and high surface energy. Aggregates. When using reclaimed rubber 2ELYY322 to produce rubber products, the smaller the particle size of carbon black, the larger the specific surface area and the higher the structure, the greater the reinforcing effect on the reclaimed rubber. Therefore, furnace carbon black and channel carbon black are commonly used nano-powder materials in the production of reclaimed rubber products.

2. Application of silica in reclaimed rubber products

The particle size of fumed silica and precipitated silica can reach nanoscale. Silica has a "structure" similar to carbon black and contains silanol groups on the surface. The rubber compound using silica has higher tensile strength, tear strength, elasticity and elongation, as well as higher heat resistance, and has better adhesion to the skeleton material. When using reclaimed rubber to produce rubber products, especially light-colored rubber products, white carbon black can be used instead of carbon black, and the reinforcing effect is remarkable.

3. Application of nano calcium carbonate in reclaimed rubber products

Calcium carbonate is one of the most commonly used white fillers in the rubber product industry. Compared with ordinary calcium carbonate, nano-calcium carbonate has better dispersibility in rubber, is easy to mix, and can make the gum softer. Therefore, when using reclaimed rubber to produce rubber products, especially for products with high requirements on appearance and wear resistance, nano calcium carbonate can be used in an appropriate amount to replace some carbon black or white carbon black, and the extrusion performance and fluidity of the reclaimed rubber are better. , The finished reclaimed rubber products have smooth surface, high elongation, high tensile strength, higher wear resistance and tear resistance.

4. Application of nano-zinc oxide in reclaimed rubber products

Compared with ordinary zinc oxide, nano-zinc oxide has small particle size, large specific surface area, large adsorption activity, surface effect and high activity, and is generally prepared by solid-phase method, liquid-phase method or gas-phase method. When using reclaimed rubber to produce rubber products, nano-zinc oxide can be combined with rubber molecules at the molecular level, grafting with rubber, improving the wear resistance of the rubber, improving the tear strength of the reclaimed rubber vulcanizate, and the rubber and skeleton. 

5. Application of nanoclay in reclaimed rubber products

Clays such as montmorillonite can form sheet-like nanostructures, namely nanoclays, after using intercalation technology. When using reclaimed rubber to produce rubber products, adding an appropriate amount of nanoclay can significantly improve the properties of reclaimed rubber vulcanizates, especially tensile strength, abrasion resistance and heat resistance. In actual production, nano-clay can replace carbon black to manufacture various high-strength, wear-resistant, heat-resistant and environmentally friendly rubber products.

When using reclaimed rubber to produce rubber products, the rational use of nano-powder materials can not only improve the process performance of the rubber compound, but also effectively improve the mechanical strength, wear resistance, adhesion, heat resistance, etc. of the reclaimed rubber products; the editor will continue later. Share with you the specific applications of nano-powder materials such as carbon black, silica, nano-calcium carbonate, nano-zinc oxide and nano-clay in reclaimed rubber products.

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