Description of BPI – H Series Polymers

H Series Polymers are water soluble products derived from cellulose and generally referred to as alkylated and hydroxyalkylated cellulose or cellulose ether. They are produced by BPI from secondary sources and exhibit a wide range of functional characteristics useful in many erosion control and soil stabilization applications. Due to variable degrees of substitution, their use is typically restricted to applications where these variations are acceptable. BPI provides a wide range of viscosities that can often be tailored to meet the requirements for a number of end uses. For more information, contact BPI at (918) 437-1880.

*Viscosity is measured at 25°C with a Brookfield DV II LV viscometer at 12 rpm spindle speed.

BPI - H Series Polymers: Benefits in Hydromulch Applications

• Superior wet-tack and adhesion properties

• Highly soluble across a wide range of temperature and water conditions

• Excellent bio-resistance for extended binding and water retention effects

• Fast hydration rate for reduced mixing time

• Available in a number of viscosities

• Superior water binding and film forming properties

• Improved lubrication and fiber wetting action

• Stabilizes suspensions of fibers and other solids in water

• Safe for use under all conditions

• Does not affect seed germination rates

• Provides fiber-to-fiber bonds with high tensile strength that lasts for months

• Capable of cross-linking and dipole interactions for increased water resistance

• Less shear thinning than guar gum to improve cohesion and reduce separation during high pressure spraying

BPI offers formulations with regard to all types of mixing, spraying and equipment considerations. Please contact us to discuss your specific situation. We can provide recommendations and trial quantities of material that meet environmental and safety requirements while providing excellent performance and economy.

H Series Polymer Products

H 500             H 2200           HE 5000        H 16M                        H 35M

Chemical Structure of BPI Cellulose Polymer Products

H Series polymer products are water-soluble polymers that are derived from cellulose, the most abundant natural carbohydrate polymer on Earth. These polymers have the polymeric backbone of cellulose to which other organic groups have been attached. While the basic repeating structure of anhydroglucose units forms the largest portion of the molecule, the functional side groups give these polymers a number of unique properties. The fully processed polymer is a dry, somewhat fibrous powder. However, BPI also offers liquid products consisting of pre-dispersed suspensions of H Series polymers. All of these products are very water soluble and produce high tensile strength networks when mixed with fibers and other solids. Other properties helpful to formulators of erosion control products are described under H Series Polymers: A Unique Combination of Properties.

Because H Series products are produced from secondary sources of cellulose polymers, the degree of substitution (DS) will vary from 1.3 – 2.0. Likewise, the molar substitution (MS) may vary from 0.2-1.8. These variations do not affect the many functional characteristics useful in almost all approved erosion control applications. These properties have proven to be valuable in a variety of water-based soil stabilization applications. H Series products cannot be used in industrial applications or any other application not approved by BPI.

There are also specialized BPI products available that are based on synergistic blends of H Series polymers with other materials. They have been formulated to meet the requirements of specific end uses. These engineered products contain additives and particle size modifications custom-tailored to optimize performance in situations where equipment design and other considerations are involved.

For a more detailed explanation of how the chemical structure of these polymers relates to their performance, contact BPI.