Related products: TINOX® CR-1120, TINOX® A-2380

Application of titanium dioxide in rubber
Rubber is an organic polymer compound that is classified into natural rubber and synthetic rubber depending on the source. Their common feature is high elasticity. In addition, it has excellent properties such as imperviousness, airtightness, and insulation. Because of its properties, rubber has a wide range of applications, regardless of industry, agriculture, transportation, national defense, and people’s daily lives. In the rubber industry, in order to improve the performance of the raw rubber in the process and the performance of the vulcanized rubber, it is necessary to add a vulcanizer, an accelerator, an active agent, an antioxidant, a reinforcing agent and a coloring agent, or a dozen or so kinds of assistance. The agent makes the rubber materialized and chemically changed. Titanium dioxide is a good coloring agent because of its stable physical and chemical properties, small particles, and no impurities such as manganese, copper, cadmium and cobalt in the vulcanization process, which will not damage the vulcanization process due to its colorlessness and High hiding power, the use of a small amount of titanium dioxide can achieve the best coloring effect, but has no effect on the tensile strength, elongation and bending properties of the product. At the same time, the anti-sun property is extremely strong, and it does not crack under the sunlight and does not change color. Therefore, titanium white powder is generally indispensable in white and light-colored rubber products. The rubber product made of titanium dioxide has the characteristics of slow aging, high strength, large elongation, and difficulty in fading. In addition, it has a filling, anti-aging, acid and alkali resistance and reinforcing in silicone rubber. Therefore, titanium dioxide is indispensable in the rubber industry.
The quality of titanium dioxide for rubber has the following requirements:
1. Good heat resistance, vulcanization at 110~170 °C without yellowing.
2. Good stability to sulfur and other additives.
3. High color and hiding power
4. There should be no adverse effects on the properties of rubber products (such as physical properties, mechanical properties, and aging properties).
5. Less harmful impurities such as copper, manganese, cadmium, and cobalt6. The particles are small and easy to disperse uniformly.

Rubber containing products formulation table reference (parts by mass)

The data provided is based on lab reserach for your reference only, to the real pratical application please adjust accordingly.

White outsole rubber
Natural Rubber100Sulfur2.5
46# engine oil10Anti-aging agent SP1
Zinc Oxide5Vaseline3
Accelerator D0.3Accelerator M0.6
CaCO3 light80Ultramarine0.05
Stearic acid1TINOX® A-238020

Butylbenzene rubber(SBR)
SBR100TINOX® A-238020
Accelerator M1.5Zinc Oxide5
Accelerator TT0.3Anti-aging agent SP2
Spindle oil10White carbon black20
Stearic acid1Diethylene glycol4
CaCO3 light40Clay60

Butadiene rubber (White sole)
Butadiene rubber100Sulphur2
Accelerator DM1.5Diethylene glycol3
TINOX® R-112010Paraffin2
Zinc Oxide5White carbon black40
Accelerator TT0.5Anti-aging agent MB2
46# engine oil20MgCO340
Stearic acid2

Neoprene (White washer)
Chloropamine100Dioctyl sebacate10
Anti-aging agent SP1Zinc Oxide4
TINOX® R-112020Paraffin1
Zinc Oxide5White carbon black20
Anti-aging agent MB1Accelerator Na-220.5
Diethylene glycol2CaCO3 light90
Stearic acid1