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Sample report for adhesive category. Other reports may vary in format.
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| 15.32USA - Starches and Dextrines - U.S. Adhesives
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Starches and dextrines are polysaccharides derived from a variety of natural sources. Starch is a water-soluble complex carbohydrate found naturally in many vegetable products, such as potatoes, rice, corn, and wheat. Chemically, it is a hydroxyl functional polymer having specific adhesion to polar substrates, especially cellulosics. Sold commercially in granular form, starch is dissolved in water by cooking at elevated temperatures. Starches derived from different vegetable sources will differ in cooking requirements and yield aqueous solutions having different viscosity and rheological characteristics, clarity, and adhesive properties.
Dextrines are specially processed (dextrorotatory) water-soluble polysaccharides derived from starches through controlled acid hydrolysis and prepolymerization. Depending upon the process conditions and starch used, dextrines will differ in molecular weight and chemical structure. These properties affect the solubility, color, and adhesive properties. Dextrines are preferred over starches for applications requiring moisture resistance.
Starch and dextrine adhesives are formulated with plasticizers to control flexibility, inorganic fillers to control hold out on porous substrates, such as paper, preservatives to prevent bacterial attack, humectants to control open time, and viscosity stabilizers. Borax is commonly used as a rheology modifier to control viscosity, tack time, and green strength.
Starch and dextrine adhesives have been used widely for a variety of nonstructural applications, particularly paper bonding, for over 50 years. Synthetic latex polymers, such as vinyl acetate and vinyl acetate ethylene copolymers, as well as alternate technologies, such as hot melts, have made inroads into many traditional starch and dextrine adhesive markets. This trend will continue; however, the availability and economics of the natural starch raw material will dictate the degree and speed of competitive replacement in low cost commodity adhesive applications. This resin classification market report on starches and dextrines estimates 2003 demand with a historical perspective back to 2000 as well as forecasts through 2005 and 2010 within the U.S. Adhesives Industry.
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| Report Table of Contents |
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Starches and Dextrines Report - U.S. Adhesives Industry - RAW MATERIAL Market
Market Information - Forecasting Size and Growth Trends
Market Sector Information – Forecasting Size and Growth Trends
Market Segment Information – Forecasting Size and Growth Trends
Formulative Technology Information – Forecasting Size and Growth Trends
Raw Material Suppliers
Growth Opportunities – Size and Growth Trend
Commentary |
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