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Deformation Characteristics of Leather for Shoe Upper, Filled with Natural Minerals 被引量:1
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作者 Oksana Kozar Olena Mokrousova Boguslaw Wozniak 《Journal of Chemistry and Chemical Engineering》 2014年第1期47-53,共7页
A promising direction in the tanning industry is the use of natural minerals as environmentally friendly technologically efficient materials that are able to adjust and regulate the efficiency of formation of the derm... A promising direction in the tanning industry is the use of natural minerals as environmentally friendly technologically efficient materials that are able to adjust and regulate the efficiency of formation of the dermis structure and the properties of finished leather. The use of finely-dispersed minerals promotes alignment of topographic areas in thickness, increases the yield of leather on the area by avoiding bonding structural elements of the dermis. Changes in the microstructure of the dermis, as a result of mineral filling, contribute to improvement of performance and hygienic properties of finished leather. And the study of the properties of the specified skins should be consistent with the features of operations on their cutting, shoe molding and shoe upper fixing preparations. The most important properties of leather materials, which largely determine the quality of basic technological operations of shoe manufacturing are the deformation properties. Lack of information about relaxation and deformation properties of the leather produced by the new technologies do not allow to predict their ability to form shapes and save it--indicates the relevance of this study. This paper analyzes relaxation and deformation characteristics of natural leather for shoe uppers, filled with natural minerals montmorillonite and zeolite, and the ability to predict their formation and preservation of shape in service. Features of deformation of the skin with mineral content were assessed by determining single-cycle characteristics when attaching to a complete test cycle "loading-unloading-rest" sample. Correlations of elastic and plastic (permanent) deformation have been established, kinetics of changes in linear characteristics of the samples after removal of the load has been investigated. Introduction of dispersions of mineral to the structure of the dermis contributes to the strength of semi-finished leather, increase of the uniformity of mechanical properties in the longitudinal and transverse directions and rise of shape stability index. It is shown that the direction of this study allows us to offer new competitive ecologically friendly materials to produce shoes. 展开更多
关键词 Leather for shoe uppers deformation RELAXATION shape stability dispersion of mineral modification.
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基于新材料新工艺的新式操纵台研究
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作者 崔韬 王海梅 王田农 《铁道机车与动车》 2020年第12期37-39,45,I0004,共5页
为了提升城轨车辆操纵台的美观性及舒适度,基于新材料、新工艺对操纵台进行重新研究设计,研制出一种融合汽车元素的新式操纵台。新材料性能完全满足城轨车辆操纵台的相关要求,在完全不改变原驾驶设备布局的前提下,从外观上大幅提升了美... 为了提升城轨车辆操纵台的美观性及舒适度,基于新材料、新工艺对操纵台进行重新研究设计,研制出一种融合汽车元素的新式操纵台。新材料性能完全满足城轨车辆操纵台的相关要求,在完全不改变原驾驶设备布局的前提下,从外观上大幅提升了美观性及舒适度。此技术填补国内行业空白,产业化前景广阔,具有较大的商业价值和战略意义。 展开更多
关键词 操纵台 皮质材料 真空吸附 发泡材料 桃木纹装饰条
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