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First use soap-free emulsion preparation for polystyrene spheres, and the kernel, Reuse are silicon acetic tetraethyl ortho-silicate in ammonia catalytic hydrolysis, formed under the condition of silica, charged by six water or their cerium, six of methylene amine solution HMT (4) into the negatively charged, uniform cerium oxide coated surfaces to PS microspheres, core-shell structure of PS - CeO2 and PS - SiO2 composite microspheres.

首先用无皂乳液制备了聚苯乙烯微球,并以此为内核;再利用正硅乙酸乙酯在氨水催化条件下水解,形成带负电性的二氧化硅,或者利用六水亚硝酸铈、六亚甲基四胺水溶液分解出带负电性的氧化铈,均匀的包覆到PS微球表面,形成核-壳结构的PS-CeO2和PS-SiO2复合微球。

Wheat straw, thermosetting resin, alcohol ,etc, were selected as raw materials and Zncl2, K2CO3,(NH4)2HPO4 and Na2B4O7·10H2O as additives. All these components were mixed uniformly according to the proportion and hot-pressed to sample with the dimension. The samples were put into the vacuum furnace and sintered in the atmosphere of nitrogen ,and the termination temperature was 300℃, 400℃, 500℃, 600℃, 700℃ and 800℃, respectively, and woodceramics were prepared and the effects of the additive on the ratio of remaining carbon were investigated.

试验选取了麦秸、热固型酚醛树脂、酒精等为原料,氯化锌、碳酸钾、磷酸氢二氨以及硼砂等为阻燃剂,按照一定的比例混合均匀并热压成一定尺寸的坯体,再将坯体在氮气保护下按两种升温模式分别烧结至300℃、400℃、500℃、600℃、700℃和800℃,制备出各温度点下的木质陶瓷,观察分析了阻燃剂对其残碳率的影响。

The resultant powder was pressed into rods of 10 mm in diameter and 15 mm in length, and treated at 10 MPa and 900℃for 10h with a hot-pressing facility, then further sintered at 1300℃for 10h, at last the pressed rods were cut into pellets with 1mm in thick.

采用溶胶-凝胶方法制备一系列不同浓度的Fe~(3+)掺杂钛酸钡前驱粉体,再将粉体压制成直径为10mm,高度为15mm的圆柱体,采用热压炉在10MPa,900℃下热压10h后,并进一步在1300℃下烧结10h。

This invention discloses one lithium ion battery anode materials, which is made by following steps: a, mixing lithium salt, microcosmic salt and ferrous oxalate for grinding with mole proportion as one to one to one; after drying under nitrogen gas protection in 300-400DEG C for heating for five to eight hours; b, adding addictive agent into the mixture with weight proportion as3-10:1; c, bursting the mixture gas under inertia gas protection under temperature of 500-800DEG C for 10 to 24 hours; d, adding the product into crucible with active carbon 10 to 40 g and adjusting the microwave frequency into 140 to 700 W with control time as 1 to 14 minutes.

本发明公开了一种锂离子电池正极材料,由70-90wt%的LiFePO 4 和10-30wt%的碳组成,按照以下步骤制备:(1)将锂盐、磷盐和草酸亚铁混合球磨,所述锂、铁和磷元素的摩尔比为1∶1∶1,干燥后在氮气保护下300~400℃预热5~8小时;(2)在上述的混合物中加入添加剂,所述混合物与添加剂的重量比为3~10∶1;(3)将步骤(2)得到的混合物在惰性气体保护下,进行焙烧,焙烧温度为500~800℃,焙烧时间为10~24小时;(4)将焙烧后的产物压片,放入装有活性炭10~40g的坩锅,再将坩锅放入微波炉中,微波功率调至140~700W,控制时间为1~14分钟。

In this paper, the materials for experiments of montmorillonite are prepared by Xinjiang smectite, In the country, Smectite as raw mineral materials, is done to sublimate to the content of montmorillonite more than 95% up through the experiment, concentrate performance is improved, and met the requirement of medical auxiliary materials; And then adopt the activator , glue to congeal the pharmaceutical and congeal the gummed test and prepare inorganic mineral gel, gel viscidity reaches above 40mPa·s.

本课题试验选用国内蒙皂石储量最大的新疆蒙皂石作为矿物原料,通过加入分散剂高速分散方法来进行提纯处理,使其蒙脱石含量提高到了95%以上,精矿性能得到改善,达到了药用辅料的要求;再采用活化剂、胶凝剂凝胶化试验制备无机矿物凝胶,凝胶粘度达到40mPa·s以上。

E. OCB mode LCD elements . Then,we added bi-functional powder and LC E7 in the bulk copolymer of Poly Acrylic Acid and EOPO,then poured the LC solution,and exposed it with 5V voltages under ultraviolet radiation. Finally,we observed the changing phenomena of the planar display of OCB cell with additional external voltage under polarized microscopy . It can be observe obviously the polymer wall in OCB cell when NO.4 LC solution having concentration of 3% wt . At the same time,the polymer which didn't sheltered by mask will polymerize,then,lead LC into high inclined angle alignment. And it formed discontinuous structure along mask affected LC which surrounded the wall. The results measured by photoelectric instruments showed the discontinuous structure not only keeps the inner LC structure at twist mode,but also promotes the originated respond-velocity of OCB.

然后利用聚丙烯酸与EOPO之团聚共聚合物,添加双官能基粉体及液晶E7,制备成液晶溶液再注入液晶盒里,放置光罩并给予固定外加5V电压在UV下进行曝光,然后在偏光显微镜下外加电压观察液晶盒的平面显示变化现象,发现四号高分子的液晶溶液在3%时,可以明显观察未被光罩遮蔽的高分子将会聚合形成高分子格子结构,并造成液晶成高倾角排列,顺著光罩形成不连续的结构藉以影响墙周围的液晶,从光电量测结果显示,利用此种不连续结构不仅可将内部液晶结构维持在twist的状态,也成功提升OCB原有的响应速度。

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推荐网络例句

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发,分析对称连杆曲线上鲍尔点的产生条件,提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品,年生产总值3000万美元,产品价廉物美、选料上乘、质量保证,深受国内外客户的青睐

The eˉtiology of hemospermia is complicate,but almost of hemospermia are benign.

血精的原因很,以良性病变为主。