Natural starch is an abundant and inexpensive polysaccharide biopolymer that is widely used as a surface-sizing agent in the paper industry.
The surface sizing of paper improves its water and abrasion resistance, as well as its physical strength and printing adaptability. However, natural starch presents some disadvantages, such as high viscosity, poor fluidity, poor film forming properties, and easy coagulation. Therefore, starch is usually modified and blended with various components to achieve better sizing performance.
Modified Starch
Modified Starch series for emulsifier
Properties:
The product is produced by wet process, high whiteness, easy gelatinization and good film-forming property. The paste is stable and good rheology.The sizing agent has good stability. High concentration, low viscosity, good emulsification effect.
Specification:
Item | Standard Index | Note |
Appearance | White powder | --- |
Viscosity (cp) | ≤200 | 20%, NDJ-1,60℃,60rpm |
Degree of substitution | 0.25-0.050 | --- |
Moisture (%) | ≤14.0 | --- |
PH | 5.5-8.0 | Pregelatinization, 10.0% Distilled water (pH=7.0) |
Customized product as per customer requirement.
Storage and Packaging:
Store in a dry, cool and ventilated place. Packaging: 25kgs, 800kgs bags or as per customer requirement.
Shelf life: 12months
Application:
This product can be used as emulsifier for Styrene-acrylic sizing agent,
emulsifier for AKD sizing agent,emulsifier for ASA sizing agent and coating adhesive.
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