查询词典 acrylic resin

In this paper, the governing equations of resin flow are presented on the base of the seepage mechanics, the thermodynamics and the chemical kinetics. The unlumped temperature system (i. e. thermal non-equilibrium locally) is used to describe the thermal behavior in the RTM process, the resin reaction and heat transfer among resin, mold walls, and fibers are considered in the model.

本文针对RTM工艺树脂润湿增强纤维特点，在渗流力学、热力学和化学动力学等基础上，建立了树脂流动控制方程，采用非局部热平衡法描述了树脂、纤维和模具之间的热传递现象。

Through a variety of resin filter, adsorption and elution conditions for the optimization, as well as decolorization, crystallization methods of research, this article eventually determine the strong acid cation resin HZ-001 which is at pH 3, 3BV / h, having the largest adsorption to the tryptophan; the fermentation broth were centrifuged to remove sediment,then treated with activated carbon to be decolored and then treated with strong acid cation resin HZ-001. After that,2mol/l amino acid were passed through the HZ-001 ion exchanging column,kept almost constants when the flow rate stayed 6 BV / h. At 60℃,it was condensed into the saturated state and then added Ethanol until its percentage reaching 30%. At 4 ℃ under 100rpm placed in the shaker 20h, the collection of L-tryptophan was dried up in vacuo.

本文通过对种树脂的筛选、吸附和洗脱条件的优化，以及对脱色、结晶方法的研究与摸索，最终确定强酸型阳离子树脂HZ-001在pH=3，3倍床体积流速，温度室温，对色氨酸有最大的吸附作用；将发酵液离心去沉淀并用活性炭脱色后通过HZ-001强酸型阳离子交换树脂柱，再用2mol/L的氨水6倍床体积流速在室温下进行洗脱，收集洗脱液，60℃浓缩为过饱和状态后加入30%无水乙醇，4℃下100rpm摇起晶20h，过滤搜集结晶并真空干燥得白色粉片状L-色氨酸晶体。

The types,structures of substrates and reaction mediums for the enzymatic synthetic polyphenol resin was surveyed and the manufacturing method,product structure and their performances of the polyphonel resin and aldehyde resin were compared.

概述了酶催化合成聚酚树脂用酶的种类、底物的结构、反应介质；比较了该树脂和传统酚醛树脂的生产、结构及性能特点；指出了其不仅具有良好的耐热性能，可作传统酚醛树脂的替代品，而且具有导电、发光等功能，在光电材料方面显示了极强的应用潜力，但降低HRP催化合成聚酚树脂的成本是其实现工业化亟待解决的问题。

You go and find out if those trees are oozing yellow resin. Use a knife and try to find out if the resin is yellow. If it is yellow, that is the material that you are looking for. You do not want it if it is white like milk. We need the yellow one. It is like amber which is made of tree resin.

很简单，你到坟场去，看到有些在坟场的树木，你看那些树有没有流出黄色的树脂，你用刀给它弄一点看是不是黄色的，是就好啦，是白色像牛奶的就不要，要黄色的。

P: paper-based epoxy resin copper-Park Ji-layer paper between phenolic resin and glass cloth epoxy resin substrate board of the electrical characteristics of the middle, humidity, and heat resistance, used in single-and double-sided printed circuit boards, the main purpose of which is the circuit used for a variety of power requirements of high-frequency characteristics of substrate and the color TV, VTR, etc. used in tuning, as well as the board, such as OA machines.

。P：纸质环氧树脂铜泊积层有介于纸质酚醛树脂基板及玻璃布环氧树脂机板中间之电气特性，耐湿性，耐热性，使用于单面及双面印刷电路板，主要的用途是用于各种电源回路用基板及要求高周波特性之彩色TV，VTR等之调谐器用，以及OA机器等机板。

Anion exchange resin was not suitable for the separation as stationary phase due to the strong adsorption toward catechol.The chemicals of eluates were measured by UV and IR.Terpene-catechol resin can be used for preparing copolymeric coating from terpene-catechol resin with raw lacquer.

通过对洗脱液进行紫外光谱分析，表明用中性氧化铝作固定相，分别用汽油、乙醇和NaOH-乙醇溶液洗脱，能较好地分离萜烯树脂和萜烯-邻苯二酚树脂。

Results showed that terpene-catechol resin could be synthesized directly with the proposed method.The synthesized terpene-catechol resin could be separated from terpene resin and catechol on neutral alumina column with petroleum,absolute ethanol and 5％ NaOH-ethanol solution as eluates.

采用柱层析法分离萜烯树脂和萜烯-邻苯二酚树脂，分别采用中性氧化铝和强碱性阴离子交换树脂作固定相，汽油、乙醇、NaOH-乙醇溶液作洗脱剂对萜烯树脂和萜烯-邻苯二酚树脂进行分离提纯。

The fractured surfaces and the structure of the resin binder links, which exist in nitrogen-free high-furfuryl-alcohol resin sand mixture and in high-nitrogen content low-furfuryl-alcohol resin sand mixture respectively are investigated by the aid of scanning electronic microscope.

本文通过扫描电镜分别对高糠醇无氮树脂砂和低糠醇高氮树脂砂断口的破裂形式，树脂膜组织结构进行了观察和研究。

Epoxy resin, amino resin, alkyd resin are adopted to get endure boiled anticorrosive stoving varnish introducing it's produce process, discussing reason of affect it's performance.

采用环氧树脂、氨基树脂、醇酸树脂研制成耐煮沸防腐烘干清漆，介绍了该漆的制备工艺，讨论了影响其性能的因素。

The strengths of the plain wood rose along with the compression ratio, while the bending strength and MOE lowered as it reached the maximum compression ratio; the plain wood compressed (33%) and heated 10h with 180℃. its bending strength lowered 40%, MOE lost about 50% and hardness lowered 12% than heated 0.5h; the properties not to be compressed after impregnated with PF resin. had a slow rising with the resin concentration, and compressed (33%) after impregnated with PF resin (30%). its bending strength, MOE and hardness increased 82.9%, 98% and 152% respectively.

三倍体毛白杨素材压缩后，其静曲强度和抗弯弹性模量均随压缩率的增大而提高，但接近最大压缩率时均下降；素材压缩（压缩率为33%）后以180℃空气加热处理10 h，静曲强度比同温度压缩保温0.5 h时下降约40%，抗弯弹性模量下降近50%，表面硬度下降约12%；用PF树脂浸渍处理后不经压缩，随PF树脂含量增加木材静曲强度提高幅度不大；用30%PF树脂浸渍后，当压缩率为33%时，其静曲强度、抗弯弹性模量和表面硬度分别比未压缩素材增加82.9%，98%和152%。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。