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1)  coagulation bath
凝结浴
2)  coagulation bath
凝固浴
1.
Effect of temperature of coagulation bath on structure and properties of lyocell fibers from bamboo pulp;
凝固浴温度对有机溶剂法再生竹纤维素纤维结构与性能的影响
2.
The paper studied the effect of coagulation bath condition on the structure and property of the nascent fibers and the PAN fibers.
利用元素分析仪、X射线衍射仪、电子探针等手段,研究了温度、浓度等凝固浴参数对聚丙烯腈初生纤维及最终原丝结构和性能的影响,得到了湿法纺丝中制备高性能原丝的最优凝固工艺条件。
3.
To improve the tenacity of polyimide(PI)fiber prepared by two-step process 1,4-benzenediamine,a rigid mono- mer,was introduced into the system of pyromellitic dianhydride and 4,4'-diamino dipheuyl and ternary copolymerized with N- methylpyrrolidone to yield polyamic acid(PAA)which was spun into PAA fiber by dry-wet spinning using the mixture solution of water and alcohol as coagulation bath.
针对均苯四甲酸二酐和4,4′-二氨基二苯醚体系两步法制备的聚酰亚胺(PI)纤维强度比较偏低的问题,加入刚性单体对苯二胺,在N-甲基吡咯烷酮中进行三元共聚得到聚酰胺酸(PAA),选用水和乙醇的混合溶液为凝固浴通过干湿法纺制出PAA纤维。
3)  coagulation bath
凝胶浴
1.
Porous poly(vinylidene fluoride)(PVDF) membranes were prepared by phase inversion method in pure water and ethanol/water coagulation baths of φ(ethanol)=20% and φ(ethanol)=40%,and these membranes were studied by SEM and DSC.
利用倒相法在纯水和φ(ethano l)=20%、φ(ethano l)=40%的乙醇/水凝胶浴中分别制备了聚偏氟乙烯(PVDF)多孔膜,通过SEM,DSC对这些薄膜进行了分析表征。
2.
The effects of different solvent concentrations in coagulation bath,coagulation temperatures and different solvent concentration in core solution on PVDF/PVC blend membranes performance were studied and discussed in this paper.
采用干-湿相转化法制备PVDF/PVC共混中空纤维膜,通过对水通量、孔隙率、平均孔径的测试及扫描电镜的微观分析,讨论了凝胶浴组成、温度和芯液浓度对PVDF/PVC中空纤维膜性能及结构的影响,并进行了详细的理论分析。
4)  coagulating bath
凝固浴
1.
Effect of mass fraction of DMAc in coagulating bath on permeative performance of adsorber/PES hybrid membranes;
凝固浴DMAc质量分数对吸附剂/聚醚砜杂化膜通透性能的影响
2.
Compound coagulating bath of bicomponent or tricomponent were found having better molding effect.
凝固浴以双组分及三组分效果较好。
3.
Precursor used in this experiment was spun in coagulating bath in different temperature, while the concentration in the bath maintained 60%.
在凝固浴中浓度为60%的情况下,在不同温度下的凝固浴中纺出原丝,用原丝凝固丝条的孔隙率和碘吸附量方法以及密度分析和电镜分析的方法对原丝的微观结构及最终碳纤维的性能影响进行了探讨。
5)  coagulating temperature
凝胶浴温
1.
Only when the miscibility ofpolymers is better,a blended UF membrane with greatly improved flux orretention rate will be obtained by raising coagulating temperature or byadding a small amount of NaCl without excessive damage of other prope-rties.
虽然凝胶浴温提高都使膜的透水率提高而截留率下降,但相容性好可在截留率下降较小的情况下较大地提高透水率;利用少量NaCl 对凝胶浴的添加,也只有在相容性好时才能在不降低透水率的情况下有效改善截留率;蒸发时间的影响也因相容性不同而异,但延长蒸发时间并不可取。
6)  dual-bath coagulation
双凝固浴
1.
The dual-bath coagulation method resolves the problem well.
双凝固浴(dual-bath coag-ulation method)成膜方法可以很好地解决这一难题。
2.
Flat-sheet type polyethersulfone(PES) membranes are prepared by dual-bath coagulation method.
采用双凝固浴法制备聚醚砜(PES)平板膜,通过改变第一凝固浴的组成,调控膜表面及内部的结构,研究了凝固浴条件对膜结构与渗透性能的影响。
补充资料:传热学:凝结换热
凝结换热:
蒸汽在低於其饱和温度的壁面上凝结时的换热过程﹐是具有相变特点的两相流换热。蒸汽凝结时放出汽化潜热而凝成液体。如凝结液能润湿壁面﹐则在壁面上形成一层液膜﹐受重力作用向下流动。液膜表面上蒸汽的凝结﹐通过液膜向壁面传递热量﹐这称为膜状凝结换热。如果凝结液不能润湿壁面﹐则将聚成珠状滚落﹐称为珠状凝结换热。这时蒸汽仍能直接在壁面上凝结﹐热量的传递没有液膜的阻隔﹐换热强度可比膜状凝结高至10倍。但珠状凝结是很难保持的﹐只有金属蒸气的凝结﹑渗入某种有机物(如油酸﹑辛醇等)蒸汽的水蒸汽在金属壁面上的凝结﹑水蒸汽在涂有硅油﹑聚四氟乙烯等壁面上凝结﹐才是珠状凝结。如果水蒸汽中含有不凝结气体﹐则换热会大大减弱﹐所以在凝汽设备中必须将不凝结气体排除。工业设备中常见的水蒸汽或其他蒸汽在金属壁面上的凝结一般都是膜状凝结。蒸汽在竖管外表面上凝结时﹐液膜沿管长不断增厚﹐换热逐渐减弱。对於横管﹐因管径有限﹐液膜不会太厚﹐所以横管的凝结换热係数较竖管为大。蒸汽流动时﹐如方向与液膜的流动方向相同﹐则会使液膜减薄﹐换热增强﹔如方向相反﹐则液膜增厚﹐换热减弱。蒸汽流速较大时会把液膜吹散﹐使换热增强。蒸汽在横管束中凝结时﹐流过各排管子的蒸汽速度是依次减小的﹐同时﹐下面的管子受上面管子滴下的凝结液的影响﹐膜层变得较厚而又有扰动。管束对凝结换热的影响是一个相当复杂的问题﹐尚未研究出普遍适用的规律。
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