摘要:
Provided is a molded article of a composition comprising a polypeptide, wherein the polypeptide is at least one kind selected from the group consisting of natural spider silk protein and polypeptides derived from natural spider silk protein.
摘要:
A film of the present invention contains a polypeptide derived from spider silk proteins. The decomposition temperature of the film is 240 to 260°C. The film absorbs ultraviolet light having a wavelength of 200 to 300 nm and has a light transmittance of 85% or more at a wavelength of 400 to 780 nm. The film is transparent and colorless in a visible light region. A method for producing a film of the present invention includes: dissolving a polypeptide derived from spider silk proteins in a dimethyl sulfoxide solvent to prepare a dope; and cast-molding the dope on a surface of a base. Thus, the present invention provides a spider silk protein film that can be formed easily and has favorable stretchability, and a method for producing the same.
摘要:
An artificial polypeptide fiber of the present invention is an artificial fiber containing a polypeptide as a main component, and has a stress of 350 MPa or more and a toughness of 138 MJ/m 3 or more. A method for producing an artificial polypeptide fiber of the present invention is a method for producing the artificial polypeptide fiber obtained by spinning a spinning solution (6) containing a polypeptide derived from natural spider silk proteins and performing drawing of at least two stages. The drawing of at least two stages includes a first-stage drawing (3) in wet heat and a second-stage drawing (4) in dry heat. Thereby, the present invention provides high-toughness artificial polypeptide fibers having favorable stress and rupture elongation, and a method for producing the same.
摘要翻译:本发明的人造多肽纤维是以多肽为主成分的人造纤维,其应力为350MPa以上,韧性为138MJ / m 3以上。 本发明的人造多肽纤维的制造方法是通过纺丝含有天然蜘蛛丝蛋白质的多肽的纺丝溶液(6)而得到的人造多纤维的制造方法,并进行至少两个阶段的拉伸。 至少两个阶段的绘图包括在湿热中的第一阶段绘图(3)和在干热中的第二阶段绘图(4)。 因此,本发明提供了具有良好的应力和断裂伸长率的高韧性人造多孔纤维及其制造方法。