THE RESEARCH ON THERMAL PROPERTIES AND HYDROPHOBILITY OF THE NATIVE STARCH/HYDROLYSIS STARCH BLENDS WITH TREATED CaCO{sub 3} POWDER
- Department of Material Engineering, Tatung University, Taiwan (China)
In this research, hydrolysis starch was added into the starch blends to study the thermal properties. The enthalpy of blends had a significant decrease to 109J/g as content of treated CaCO{sub 3} increased to 5wt%. The modified starch was degraded slightly to produce glucose in the hydrolysis treatment. The amount of glucose in native starch and hydrolysis starch was 0.09 {mu}mol and 0.14 {mu}mol by the DNS measurement. Moreover, CaCO{sub 3} treated with titanium coupling agent was also added to improve miscibility and hydrophobility in the starch blends. The contact angle of the blends increased from 60 deg. to 95 deg. when 15wt% treated CaCO{sub 3} was added. Treated CaCO{sub 3} was confirmed to improve the hydrophobility of starch blends effectively.
- OSTI ID:
- 21152522
- Journal Information:
- AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1042; ISSN APCPCS; ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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