Rubber Antioxidants DTPD 3100

Chemical Name: 1,4-Benzenediamine or N,N'-mixed phenyl and tolyl derivs

    Antioxidant DTPD 3100 belongs to the para-phenylenediamine class of antioxidants. It delivers outstanding protective performance for chloroprene rubber (CR). This high-performance antiozonant is widely adopted in tire manufacturing and a broad range of technical rubber articles.

    DTPD features remarkable ozone resistance. Its flex-crack resistance performance is comparable to Antioxidant 4010NA and 4020, and outperforms Antioxidant AD.

    Blending DTPD with an equal dosage of 4020 or 4010NA creates a powerful synergistic formulation that maximizes tire service life. 4020 / 4010NA offer immediate short-term protection, while DTPD provides long-lasting ageing resistance throughout the service cycle.

    With solubilizing substituents on its benzene ring structure, DTPD exhibits greatly improved compatibility within rubber matrices. This characteristic effectively suppresses blooming, enabling higher loading levels in rubber compounds.

    Its low alkalinity means DTPD has negligible impact on vulcanization behaviour and scorch safety. It is ideal for heavy-duty applications including truck tires, off-road tires, bias tires and radial tires operating under severe service conditions.

    DTPD also mitigates the reddish discoloration defect commonly triggered by 4010NA or 4020. It is being actively evaluated overseas as a preferred alternative to Antioxidant 4010NA. Domestically, DTPD has gained extensive use in both bias and radial tires, presenting promising market prospects.

Antioxidant DTPD 3100 is mainly used for rubber products subject to ozone ageing and repeated flexing:

• Truck, off-road, bias and radial tires for heavy-load working conditions
• Chloroprene rubber (CR) products, rubber hoses, belts, sealing parts and shock-absorbing components
• Natural rubber (NR), SBR, BR, NBR and other synthetic rubber compounds
• Often co-used with 4020 / 4010NA to achieve long-term anti-ageing performance and avoid reddish discoloration

Polypropylene knitted bags lined with polyethylene bags. Net weight 25kgs per bag.

Anti-fire and water –proofing should be done. DTPD should be stored in dry place.

1. What is the key advantage of compounding DTPD together with Antioxidant 4020 or 4010NA? 

DTPD shows obvious synergistic effect when blended with equal dosage of 4020 or 4010NA. 4020 / 4010NA provides rapid short-term anti-ozone protection, while DTPD delivers durable long-term ageing resistance. This combination can greatly extend the service life of tires and also reduce the reddish discoloration defect caused by 4010NA or 4020 alone.

2. Which rubber types is DTPD most suitable for? Is it especially recommended for CR?

DTPD works well with NR, SBR, BR, NBR and other synthetic rubbers. It delivers outstanding protective performance specifically for chloroprene rubber (CR), making it a preferred antiozonant for CR rubber goods.

3. What precautions should we take during storage and handling of Antioxidant DTPD 3100?

It should be kept in a dry, fireproof and waterproof warehouse. The standard package is 25kg PE-lined PP woven bag; avoid moisture exposure and open flame during storage.

4. What kind of tire scenarios is DTPD best tailored to?

It is designed for heavy-duty tires working under harsh service conditions, including truck tires, off-road tires, bias tires and radial tires.

5. Which rubber types is DTPD most suitable for? Is it especially recommended for CR?

DTPD works well with NR, SBR, BR, NBR and other synthetic rubbers. It delivers outstanding protective performance specifically for chloroprene rubber (CR), making it a preferred antiozonant for CR rubber goods.