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991.
Xiaojie Lv Jingjing Wang Danning Ding Jiaojiao Liang Zhongzheng Zhao Yuan Liang Zhenfei Zhang Chunlin Ye Yuwei Chen Peng Wei Yanping Wang Yong He Yumin Xia 《大分子材料与工程》2021,306(12):2100560
In this study, a kind of imidazole type poly(ionic liquid) ([PEP-MIM]Cl) is synthesized, which can disperse carbon effectively. [PEP-MIM]Cl is used as an intermediate to coat carbon on the poly(acrylic acid)(PAA-co-MBA) via ion exchange to obtain conductive polymer composite (CPC). A series of characterizations are performed. Experiments show that carbon can be coated on the PAA-co-MBA uniformly, and compared with using carbon as filler, this method requires less carbon to achieve good conductive performance. The carbon layer on the polymer's surface is enriched via the swelling-shrinking properties of PAA-co-MBA according to the SEM images. Furthermore, in combination with 3D printing technology, PAA-co-MBA can be designed into different shapes to achieve various functions such as pressure-sensing element. Finally, a new type of CPC named carbon clad polymeric laminate (CCPL) is prepared by using the carbon coating method and 3D printing technology. It has the potential to replace copper clad laminate (CCL) and printed circuit board (PCB), to a certain extent. This technology expands the preparation method and application of the CPC such as flexible and wearable conductive fabrics. 相似文献
992.
Shuya Liang Miaomiao Wang Jun Wang Guanzhi Chen 《Chembiochem : a European journal of chemical biology》2021,22(22):3184-3189
To overcome high toxicity, low bioavailability and poor water solubility of chemotherapeutics, a variety of drug carriers have been designed. However, most carriers are severely limited by low drug loading capacity and adverse side effects. Here, a new type of metal-drug nanoparticles (MDNs) was designed and synthesized. The MDNs self-assembled with Fe(III) ions and drug molecules through coordination, resulting in nanoparticles with high drug loading. To assist systemic delivery and prolong circulation time, the obtained MDNs were camouflaged with red blood cell (RBCs) membranes (RBCs@Fe-DOX MDNs) to improve their stability and dispersity. The RBCs@Fe-DOX MDNs presented pH-responsive release functionalities, resulting in drug release accelerated in acidic tumor microenvironments. The outstanding in vitro and in vivo antitumor therapeutic outcome was realized by RBCs@Fe-DOX MDNs. This study provides an innovative design guideline for chemotherapy and demonstrates the great capacity of nanomaterials in anticancer treatments. 相似文献
993.
消失模精密铸造工艺研究 总被引:6,自引:3,他引:6
借助熔模铸造制壳工艺制成消失模铸造用的超薄空腔型壳,以减少消失模铸造在浇注过程中因聚苯乙烯气化而产生的铸件增碳、增氢等缺陷。聚苯乙烯模失模工艺为随炉升温至600℃,保温60min,型壳焙烧工艺为800℃焙烧1h。 相似文献
994.
Zhang Jingfan Meng Lei Zhang Deliang Gao Wenpeng Fang Gongjun Luo Junjie Chen Wen 《Metallurgical and Materials Transactions A》2022,53(11):4126-4138
Metallurgical and Materials Transactions A - Two heat treatments, namely 955°C/2h/AC (AC = air cooling) and 955°C/4h/FC (FC = furnace cooling), were carried out on... 相似文献
995.
Xin Fusheng Ding Wangwang Tao Qiying Tian Hanqing Chen Gang Qin Mingli Qu Xuanhui 《Metallurgical and Materials Transactions A》2022,53(4):1164-1175
Metallurgical and Materials Transactions A - In this work, we used hydride-dehydride Ti (HDH-Ti) powders (with the oxygen levels of 0.17 and 0.51 wt pct, respectively) combined with microstructural... 相似文献
996.
0 IntroductionThe merits of narrow gap welding (NGW) such ashigh productivity and quantity, minimal distortion, highcost-effectiveness, and all position capability are wellknown. The narrower the gap, the more significant the a-bove merits. Moreover, while an ultra-narrowgap welding(UNGW) process with less than 5 mm gap width is used,its some advantages are very useful for preventing thestress corrosion crack in austenitic steel piping, and forwelding some update steels. For example, in aus… 相似文献
997.
采用面向对象机制,论述了Windows环境下动态数据传递的基本原理,介绍了主要动态数据交换事务以及在工业控制中动态数据传递的流程。并采用BorlandC++语言给出了工业控制中动态数据传递的基本实现 相似文献
998.
S.L. Chen 《CIRP Annals》2005,54(1):159-162
Defining product specifications so that customers' needs could be well matched with suppliers' capabilities is a very challenging task in custom product design. This research links technical requirements on product design with product management issues and formulates specification definition as multi-attribute negotiation. Specification negotiation is modeled as an iterative process of give and take in search of a mutually acceptable configuration. A negotiation support system is developed based on a product configuration system to identify among the multiple attributes what to give, what to take, and by how much so as to facilitate specification negotiation operationally. 相似文献
999.
1000.
方管两侧同时冲孔模设计 总被引:1,自引:0,他引:1
通过对零件的工艺分析,改进了工艺方案,用一副对冲孔模完成两边同时冲孔,降低了生产成本,提高了生产效率;并介绍了该对冲孔模具的结构特点、设计思路、应注意的问题和装配工艺性。 相似文献