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HUBERPOL
Huberpols are highly dispersible, precipitated amorphous silicon dioxides (HDS) utilized in many types of rubber applications.
J.M. Huber, Engineered Materials Sector engineered a patented silica production method to manufacture a unique and very special silica filler to enhance the properties of the ¡°green tire¡± being pursued by all the major tire manufacturers.
The resultant silica has successfully contributed to superior processing and performance characteristics when compared to conventional grade silica in tire and other compounds and is currently available to the rubber industry with pricing comparable to that of conventional silica¡¯s pricing.
Improved properties include: lower processing viscosities, enhanced tear, fatigue, abrasion and hysteresis (heat build-up)resistance.
Hubersil 135 and 131 are packaged in easy dispersing low dust granular and powder forms, respectively.Huber¡¯s patented process of Huberpol silica is very special in many respects, but three major characteristics are especially important:
- agglomerates easily breakdown to aggregates less than 1 micron in size (not the case with competitive HDS)
- higher structure promotes more polymer/filler interfacial activity
- higher surface activity (-OH groups) produces more interaction with polymer and coupling agents
These attributes promote a variety of processing and performance benefits.
Easy mixing Huberpol silicas produce lower viscosities than conventional grades improving milling, flow and calendering properties and a less ¡°boardy¡±or stiff compound.
In addition, improved dispersion contributes to superior physical properties such as: tensile strength, tear and abrasion resistance and improved dynamic properties like flex fatigue and lower hysteresis (using coupling agents).
Higher surface activity, basically -OH groups, lets the compounder reduce costs by using less coupling agent with these HDS.
In addition, Huberpols produce compounds with more consistent physical properties allowing for increased product quality control.
Traditional silica-loaded compounds usually produce more erratic tensile and tear values which can lead to less predictable quality of the product.
All of these benefits are available at relatively the same cost as conventional silica¡¯s cost.
pH: 6.9
Surface Area (m2/gm. CTAB): 135
Surface Area (m2/gm. BET): 150
Specific Gravity: 2.00
Sodium Sulfate, %: 1.00
Moisture, 2 hrs./105'C: 5.0
Industrial field others
Akrochem Chemical Co
Phone 330-535-2100; 800-321-2260
Fax 330-535-8947
Homepage www.akrochem.com
E-mail kristenspurlock@akrochem.com
Address 255 Fountain St., Akron, OH 44304-1991
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