近日，日本Teijin化学制药公司致力于将废弃塑料瓶再生为打印用纸，使其在环保的同时适用于打印墨水或碳粉。根据报道，Teijin公司已经联手Nisshinbo Postal Chemical Co．公司采用含聚乙烯对苯二甲酯标准品的废弃塑料瓶来制造一种被他...近日，日本Teijin化学制药公司致力于将废弃塑料瓶再生为打印用纸，使其在环保的同时适用于打印墨水或碳粉。根据报道，Teijin公司已经联手Nisshinbo Postal Chemical Co．公司采用含聚乙烯对苯二甲酯标准品的废弃塑料瓶来制造一种被他们称为ECOPE的纸张。这些新型环保纸张的厚度与普通纸张的厚度一致，但是由于原材料是塑料而不易被撕破，也不会因为潮湿而易撕裂。展开更多
A direct 3D extrusion printing technique was used to produce Ti-TiB filaments and microlattices.The sintering properties of 3D ink extrusion and sintering of in situ Ti-TiB composite structures made from TiH_(2)+TiB_(...A direct 3D extrusion printing technique was used to produce Ti-TiB filaments and microlattices.The sintering properties of 3D ink extrusion and sintering of in situ Ti-TiB composite structures made from TiH_(2)+TiB_(2) ink were investigated.The sintering kinetics of TiH2+TiB2 inks was studied during densification by pressureless sintering at 1050−1200℃ for 4−24 h in Ar.The linear shrinkage,grain size,microhardness,X-ray diffraction(XRD)patterns,and microstructural evolution of the Ti-TiB composite were studied.The sintering temperature had a more pronounced influence than the sintering time on the density of the Ti-TiB composite.There were two kinds of pores,irregular and spherical,caused by the Kirkendall effect and indiffusable gases.The TiB formed by in situ synthesis existed as either separated TiB whiskers(needle-like shapes)or clusters of TiB whiskers.The results of this work could be useful for controlling microporosity through incomplete sintering within filaments,especially for the production of in situ Ti-TiB with high volume fractions of TiB or other composites.展开更多
文摘近日，日本Teijin化学制药公司致力于将废弃塑料瓶再生为打印用纸，使其在环保的同时适用于打印墨水或碳粉。根据报道，Teijin公司已经联手Nisshinbo Postal Chemical Co．公司采用含聚乙烯对苯二甲酯标准品的废弃塑料瓶来制造一种被他们称为ECOPE的纸张。这些新型环保纸张的厚度与普通纸张的厚度一致，但是由于原材料是塑料而不易被撕破，也不会因为潮湿而易撕裂。
基金National Natural Science Foundation of China (21871008, 51872315)Key Research Program of Frontier ScienceChinese Academy of Sciences (QYZDJ-SSW-JSC013)。
基金Project(201806920003)supported by the China Scholarship CouncilProject(172180)supported by the Swiss National Science FoundationProjects(ECCS-1542205,DMR-1720139)supported by the National Natural Science Foundation,USA。
文摘A direct 3D extrusion printing technique was used to produce Ti-TiB filaments and microlattices.The sintering properties of 3D ink extrusion and sintering of in situ Ti-TiB composite structures made from TiH_(2)+TiB_(2) ink were investigated.The sintering kinetics of TiH2+TiB2 inks was studied during densification by pressureless sintering at 1050−1200℃ for 4−24 h in Ar.The linear shrinkage,grain size,microhardness,X-ray diffraction(XRD)patterns,and microstructural evolution of the Ti-TiB composite were studied.The sintering temperature had a more pronounced influence than the sintering time on the density of the Ti-TiB composite.There were two kinds of pores,irregular and spherical,caused by the Kirkendall effect and indiffusable gases.The TiB formed by in situ synthesis existed as either separated TiB whiskers(needle-like shapes)or clusters of TiB whiskers.The results of this work could be useful for controlling microporosity through incomplete sintering within filaments,especially for the production of in situ Ti-TiB with high volume fractions of TiB or other composites.
