Polyurethane membranes modified with silk fibroin protein(SF) and silk fibroin peptide(SP) had good flexibility. They could overcome rigid and brittle weaks of SF membrane.
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2. 其拳法结构严谨清晰、攻防意识鲜明、手法多变、步法走闪灵活、劲力刚脆精巧。
The structure of this martial art is strict and neat, with clear attack and defence consciousness, various hand forms, agile footwork, neat delicate strength.
The result shows with the temperature increasing, tensile strength and modulus decreases but elongation increase and material properties change from rigidity to flexibility.
The result shows with the temperature increasing, tensile strength and modulus decreases but elongation increase and material properties change from rigidity to flexibility.
