This article is designed to position DPG not just as a commodity, but as a critical “activator” that unlocks the full potential of other accelerators, specifically highlighting its importance in silica compounds and tire manufacturing.
SEO Meta Description: Boost your vulcanization efficiency with Accelerator DPG (Diphenylguanidine). Qingdao Chengda Huili Import and Export Co., Ltd. supplies high-purity DPG (D) for silica-filled compounds, tires, and footwear.
The Essential Activator: Unlocking Synergy with Accelerator DPG (Diphenylguanidine)
By Qingdao Chengda Huili Import and Export Co., Ltd.
In advanced rubber formulation, individual ingredients rarely work in isolation. The secret to a high-performance compound often lies in synergy—how well your chemicals work together.
While thiazoles (like MBT) and sulfenamides (like CBS or TBBS) are the primary drivers of vulcanization, they often require a “kick” to reach peak efficiency. This is where Accelerator DPG (D) proves indispensable.
At Qingdao Chengda Huili Import and Export Co., Ltd., we supply premium-grade Diphenylguanidine (DPG) that serves as the perfect secondary accelerator for manufacturers aiming for precision control over their cure rates.
What is Accelerator DPG (D)?
Diphenylguanidine (DPG) is a guanidine-class accelerator. Historically used as a primary accelerator, today it plays a far more sophisticated role as a secondary accelerator (activator).
It is a slow-acting accelerator on its own, but when paired with others, it acts as a powerful booster, modifying the cure kinetics to suit specific industrial needs.
The Technical Edge: Why Add DPG?
Modern rubber compounding, especially for tires and technical goods, relies on DPG for three specific technical advantages:
1. The “Booster” Effect DPG powerfully activates acidic accelerators like MBT (M) and MBTS (DM). By neutralizing the acidity, it speeds up the vulcanization process and increases the cross-link density, resulting in a tougher, more resilient final product.
2. Silica Compounding Criticality In the era of “Green Tires,” silica is replacing carbon black to lower rolling resistance. However, silica surfaces are acidic and can “deactivate” curing agents.
- The DPG Solution: DPG is basic (alkaline). It effectively coats the silica surface, preventing the absorption of other accelerators.
- Result: It ensures the primary accelerators remain active, improving the efficiency of the silanization reaction and enhancing the physical properties of the tire tread.
3. Controlled Modulus Development DPG helps in achieving a higher modulus (stiffness) without making the compound “scorchy” (prone to premature curing) during the early stages of mixing, provided it is dosed correctly.
Core Applications
Our DPG (D) is a staple ingredient in high-value sectors:
- Radial Tires: Essential for silica-filled tread compounds to improve wet grip and lower rolling resistance.
- Footwear: Widely used in shoe soling compounds where a balance of cure speed and physical toughness is required.
- Industrial Rollers & Molded Goods: Used to activate sulfenamide cure systems for thick rubber parts requiring uniform vulcanization.
The Qingdao Chengda Huili Guarantee
Chemical purity directly impacts the “activation” capability of DPG. Lower purity materials often contain free amines or moisture that can cause blistering or inconsistent cure rates.
Qingdao Chengda Huili Import and Export Co., Ltd. ensures:
- High Purity: Our DPG is a white/grey-white powder with a melting point consistently above 145°C, ensuring no active filler contaminants.
- Low Moisture: We strictly control heating loss to prevent porosity in your final rubber products.
- Format Flexibility: Available in powder or oil-coated powder to reduce dust in your mixing room and improve worker safety.
Strengthen Your Formulation
Whether you are optimizing a silica tread formulation or simply need a reliable activator for your MBTS system, DPG is the key to unlocking better performance.
Contact Qingdao Chengda Huili Import and Export Co., Ltd. today for current pricing and Technical Data Sheets (TDS) for Accelerator DPG (D).
Email：info@ctp-pvi-chem.com