EBS Dispersant: The Multifunctional Key to Unlocking Polymer Processing & Performance

   In the field of polymer materials such as plastics, rubber, and coatings, balancing processing efficiency and product performance remains an industry challenge. EBS (Ethylene Bis Stearamide), as a high-efficiency multifunctional dispersant and lubricant, has become the preferred solution for global materials engineers. Qingdao Sainuo New Materials Co., Ltd., a leader in polymer additives, deciphers how EBS empowers industrial upgrades.

1. What is EBS?

EBS (Ethylene Bis Stearamide), chemically named N,N'-Ethylene Bis Stearamide (molecular formula C₃₈H₇₆N₂O₂), features a unique "polar diamide group + non-polar long-chain alkyl" structure , enabling dual functions of internal/external lubrication, dispersion, and anti-blocking. Key properties include:

2. Core Functions: Dual Engines of Lubrication & Dispersion

1. Processing Optimization

   • Reduces polymer melt viscosity by 40%, lowering equipment torque, saving energy, and boosting output ;

   • Prevents high-temperature mold sticking, improving demolding efficiency by 30% and extending mold life .

2. Dispersion Revolution

   • In masterbatches, 3–5% EBS increases pigment (especially carbon black) dispersion uniformity by 50%, eliminating streaks and agglomeration.

   • In inorganic-filled systems (e.g., calcium carbonate, glass fiber), enhances filler encapsulation, preventing surface exposure and improving product gloss.

3. Applications: Industry-Wide Solutions

• Films & Packaging:
  0.05–0.2% EBS in BOPP films reduces friction coefficient below 0.3, enabling high-speed automated packaging .

• Engineering Plastics
  0.5–1.5% EBS in PA/PC/ABS eliminates fiber exposure and enhances surface finish .

• Cable Compounds:
  0.05% EBS in PVC reduces friction coefficient from 0.7 to 0.06, improving sheath smoothness .

• Sustainability Contribution:
  Lowers processing energy and enables higher recycled content, supporting green manufacturing .

4. Why Choose Sainuo EBS?

Qingdao Sainuo offers high-purity customized products:

• High-Temperature Grade: Thermal decomposition temperature >400°C for TPU, PBT, etc. 

• Micronized Series: Particle size d₉₀≤12μm for coatings and ink dispersion 

• Technical Support: Formula optimization and troubleshooting for issues like blooming or compatibility.

Case Study: An auto parts manufacturer added 1.2% Sainuo EBS to nylon compounds, reducing glass fiber exposure by 90% and increasing yield to 98.5%.

For more details, please consult us!                              inquiry

Qingdao Sainuo Group. We are manufacturer for PE wax, PP wax, OPE wax, EVA wax, PEMA,EBS,Zinc/Calcium Stearate…. Our products have passed the REACH, ROHS, PAHS, FDA testing.

Sainuo rest assured wax, welcome your inquiry!

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