Starch Ether: Top 5 Benefits with Manufacturing Process
Starch Ether: Top 5 Benefits with Manufacturing Process
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The Unique Characteristics and Versatile Applications of Starch Ether
Hydroxypropyl Starch Ether (HPS) is a powerhouse ingredient for both cement- and gypsum-based products, adding distinctive qualities that significantly enhance performance. With its structure similar to Hydroxypropyl Methylcellulose (HPMC), it not only offers similar functionalities but also boasts excellent compatibility with other additives in construction. Despite its low addition rate, starch ether delivers impressive quality effects.
Starch ether features many notable characteristics, such as thickening properties, excellent water solubility, and stability in suspensions or glue solutions. It protects colloids, exhibits film-forming behavior, ensures water retention, and provides bonding properties. The compound is non-toxic, odorless, biocompatible, and demonstrates thixotropy. Additionally, starch ether possesses unique properties like surface activity, foam stability, and ionic activity. Due to these attributes, it is widely utilized across various industries, including building materials, detergents, textiles, papermaking, food, cosmetics, and coatings.
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Application Characteristics
1. Excellent Thickening Ability
Starch ether has rapid thickening capabilities, which, combined with its water-retaining properties, makes it incredibly effective even in small quantities.
2. Cost-Efficiency
Starch ether is used in minimal amounts, yet it achieves highly effective results, making it a cost-efficient choice for various applications.
3. Improved Material Performance
This additive enhances the slide resistance of materials, ensuring better performance overall.
4. Enhanced Operability
Starch ether improves the working properties of materials, making them easier to apply and manage.
5. Extended Open Time
By extending the open time of materials, starch ether offers enhanced usability and flexibility in application.
Recommended Dosage for Different Applications
For various interior and exterior wall putty powders (both cement- and gypsum-based), tile and stone binders, and facing and plastering mortars, especially for external wall thermal insulation mortar, starch ether is a valuable addition. The recommended amount of HPS is between 0.05% and 0.15%. By reducing the Hydroxypropyl Methylcellulose (HPMC) content by approximately 0.1%-0.2% from the original formula and replacing 20%-30% of HPMC with starch ether, workability is improved, and production costs can be reduced by 10%-20%.
Starch ether works harmoniously with Hydroxypropyl Methylcellulose (HPMC) in cement- and gypsum-based products, reducing the overall amount of HPMC needed. By typically adding 0.05% starch ether, the HPMC content can be decreased by 20%-30%, leading to enhanced thickening properties, better internal structure, improved crack resistance, and increased workability.
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