Carbon fiber-reinforced gelatin composites. II. Swelling behavior

Autor:	Y. Z. Wan, K. D. Yao, Guoxiang Cheng, Y. L. Wang
Rok vydání:	2000
Předmět:	Materials science food.ingredient Polymers and Plastics Composite number Concentration effect Biomaterial General Chemistry Gelatin Surfaces Coatings and Films Solvent food Volume fraction Materials Chemistry medicine Fiber Composite material Swelling medicine.symptom
Zdroj:	Journal of Applied Polymer Science. 75:994-998
ISSN:	1097-4628 0021-8995
DOI:	10.1002/(sici)1097-4628(20000222)75:8<994::aid-app3>3.0.co;2-7
Popis:	Carbon fiber-reinforced gelatin composites have been prepared in our laboratory to obtain a novel biomaterial of improved mechanical properties. The swelling behavior (swelling rate, swelling kinetics, maximum solvent uptake, etc.) for both continuous carbon fiber-reinforced gelatin composite (CL/Gel) and short carbon fiber-reinforced gelatin composite (CS/Gel) are investigated. Experimental data show that the swelling process of the original gelatin and gelatin matrixes in both composites follows a second-order kinetics. The swelling of the gelatin matrixes in both composites proceeds slower than that of the pristine gelatin, and depends on fiber form and fiber volume fraction (Vf). Results indicate that the presence of carbon fibers suppresses the swelling of the gelatin matrixes in both composites. It is found that the gelatin matrix in CS/Gel possesses a smaller swelling rate and maximum solvent uptake than that in CL/Gel. A mechanism governing these phenomena is discussed in this article. © 2000 John Wiley & Sons, Inc. J Appl Polym Sci 75: 994–998, 2000
Databáze:	OpenAIRE
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