Rubber additives

1、Rubber Antioxidant

Although rubber antioxidants serve your lives all the time, you might not know them. Due to the rise of income, the number of private cars grows rapidly and is expected to exceed 100 million in China. From an economic perspective, people always hope that their tires can last longer. However, unfavorable factors like sunlight, high temperature, oxidation , and rainfall might accelerate the tire aging process or even bring about potential safety risks. The green rubber antioxidant produced by MTchem can effectively prevent rubber aging without toxins and has become one of the important raw materials for well-known tire manufacturers across the globe.

Believe it or not, your tires might also use the rubber antioxidant.

Chemical Name : N-(1,3-Dimethylbutyl)-N’-phenyl-p-phenylenediamine

CAS NO. :  793-24-8

Product Specification:

Appearance		Grey Purple to Purplish Brown Pastilles or flakes
Purity(GC),%	≥	97.0
Melting Point(Initial),°C	≥	45.0
Freezing Point,°C	≥	46.0
Heat Loss(70±2℃ ),%	≤	0.30
Ash,%	≤	0.10

◆    Performance:
-6PPD is an outstanding antioxidant and antiozonant, which exhibits strong anti-ozone, anti-fatigue and anti-bending performance;
-6PPD’s comprehensive aging resistance performance is better than that of quinolone and amine antioxidants;
-6PPD 6PPD has a certain protective effect on the catalytic oxidation of copper, manganese and other variable-valent metals;
-6PPD is well compatible with rubber with lower pollution and volatility.

◆    Application:
-6PPD is a general antioxidant and antiozonant, which is suitable for the formulations of natural rubber and synthetic rubber;
-6PPD can be applied to tires, conveyor belts, rubber pipes, cables, etc., and rubber products that need dynamic and static oxidation and ozone resistance protection;
-6PPD has a stabhization effect on many solution and emulsion polymers;
In the production of styrene monomer, p-methylstyrene, divinylbenzene and acrylate, 6PPD can be used as a polymerization inhibitor.

◆     Packaging: Paper/plastic packages with a net weight of 25kg per package.

2、Insoluble Sulfur

Do you know it? Although the surface of regular car tires look like rubber products, their internal structure is not that simple, let alone high-performance radial tires. The insoluble sulfur can help stick tire materials (including cords, steel wires, and rubber) together more solidly, effectively prevent rubber blooming, improve the heat- and wear-resistant performance,? and enhance overall structural strength to make high-speed driving safer.

Chemical Name: Polymeric Sulfur, 20% of oil-filled insoluble high stable sulfur

CAS NO.: 9035-99-8

Product Specification:

Appearance		Yellow powder
Total quantity of sulfur,%		79.0-81.0
Insoluble sulfur (in total S),%	≥	90.0
Ash(600°C±25),%	≤	0.10
Oil content,%		19.0-21.0
Residue on sieve(150μm),%	≤	0.30
Thermal stability(in total S),%	≥	80.0
Acidity(as H2SO4),%	≤	0.05

◆    Performance:
-HS OT 20 is a polymer sulfur with high thermal stability, which is insoluble in rubber. It can prolong the scorch time of rubber compound, prevent the migration of sulfur and improve the viscosity of rubber surface;
-HS OT 20 is pollution-free and does not change the color.

◆    Application:
-HS OT 20 is generally used in unsaturated rubber formulations with high sulfur content, especially when the phr of added parts exceeds the solubility of soluble sulfur;
-HS OT 20 has a low migration rate, even dispersion and a long scorch time in rubber, which can improve the adhesion between copper coated steel wire and rubber, so it is widely used in tire steel wire adhesive formulations and OTR tires;
-HS OT 20 can also be used in vulcanized rubber products with high requirements for performance.

◆     Packaging:  Paper/plastic packages with a net weight of 25kg per package

3、Rubber Vulcanizing Accelerator

Accelerators as rubber additives have been widely recognized by the market. Their main function is to accelerate the vulcanization speed, extend the processing safety time, and improve the performance of rubber and products. We adopted the “old products, new processes” strategy to achieve a new green process from intermediates M to downstream products such as NS, CBS, DZ, DM, etc. Accelerators form a multi-product combination with antioxidants, insoluble sulfur and other products to provide customers with combined product services.

Chemical Name: N- cyclohexylbenzothiazole- 2- sulfenamide

CAS NO.: 95-33-0

Product Specification:

Appearance		Grayish white to yellowish powder or particle
Purity,%	≥	96.0
Melting Point(Initial),°C	≥	97.0
Heat Loss,%	≤	0.40
Ash,%	≤	0.30
Residue on sieve(150μm),%	≤	—
Insoluble in methanol,%	≤	0.50
Free amine,%	≤	0.50

◆  Performance: MT CBS is kind of rapid retard sulfonamides accelerator with excellent scorch resistance, safe processing and rapid curing speed. Alkaline accelerator such as thiuram and Sulphide carbamate could enhance its activities.

◆  Application: MT CBS is mainly used for manufacturing industrial rubber products such as tires, cables, rubber hoses, rubber shoes, etc.

◆  Packaging: Paper/plastic packages with a net weight of 25kg per package.Or FIBC with a net weight 500kg per package.

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