凝固浴
- 名coagulating bath
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凝固浴以双组分及三组分效果较好。
Compound coagulating bath of bicomponent or tricomponent were found having better molding effect .
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凝固浴质量分数对聚醚砜中空纤维膜结构和性能的影响
Influence of mass fraction in coagulating bath on structure and performance of PES hollow fiber membrane
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锐孔凝固浴法制备维生素B2胃漂浮微球
Preparation of gastric floating riboflavin microspheres by sharp hole-bath method
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经凝固浴处理后,壳聚糖超滤膜对酸性红B的截留率提高了83.7%;
The results show that the retention rate of chi - tosan membranes increases by 83.7 % after being treated by precipitation .
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凝固浴条件对湿纺PAN初生纤维截面形状和皮芯结构的影响
Effect of Coagulation Bath Conditions on Cross Section and Skin-Core Structure of PAN Nascent Fibers during Wet-Spinning
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再以得到的聚乙烯醇缩乙醛作为膜材料,N,N二甲基乙酰胺作溶剂,水的盐溶液作凝固浴,制备出相转化超滤膜;
The membranes were prepared from a casting solution of poly ( vinyl acetal ), N , N-dimethylacetamide as solvent by immersing them in coagulation bath .
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凝固浴的质量分数对聚醚砜(PES)超滤膜微结构和性能的影响
Effects of the Coagulation Bath Concentration Change on Polyether Sulfone Membrane QUALITY
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采用干喷湿纺法纺制成聚醚砜中空纤维膜,研究了凝固浴质量分数与PES中空纤维结构和性能之间的关系。
Dry-wet sping technique is used for the preparation of the PES hollow fiber membrane in this experiment .
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采用锐孔-凝固浴法,对PGPR微胶囊菌剂的研制进行了探讨。
Microbead inoculants were explored according to the piercing-solidifying method .
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适宜的预蒸发时间和凝固浴温度分别为15s和15℃。
Proper pre-evaporation time is 15s and coagulation temperature is 15 ℃ .
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结果表明,硫酸溶液作为凝固浴时HEC膜的机械性能较好,且膜结构较为致密。
The results showed that HEC membranes prepared from the sulfuric acid solution had good mechanical properties and presented relatively dense structure .
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采用溶液共混分散聚苯胺(PANI),并用凝固浴去除溶剂制备了电学性能优良的(丙烯腈/丁二烯/苯乙烯)共聚物(ABS)/PANI导电复合材料。
ABS / polyaniline ( PANI ) conducting composite with excellent electrical property is prepared by dispersing PANI in organic solvent system and then removing solvent in concreting bath .
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不同凝固浴制得的PVDF管式微孔膜不同,膜的纯水通量和截留率也不同。
The PVDF pipe microporous films which are made by using different solidification baths are different . Their pure water flux and cutting off rate are different as well .
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随着浆料中HA浓度的增加,出现了颗粒的团聚;凝固浴的温度过高或过低都会影响纤维的性能。
With the increasing concentration of HA powder of mixed slurry , the HA grain agglomerated together . It would affect the fiber performance both when the temperature of coagulation is too high or too low .
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详述了凝胶纺丝制备高性能PVA纤维的工艺及其影响因素:纤维结构、拉伸工艺、溶剂、凝固剂种类、凝固浴温度等。
The gel spinning process of high-performance PVA fiber was described , and the influential factors including fiber structure , drawing process , solvents , coagulant varieties and coagulation bath temperature , etc. were discussed .
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分别选取硫酸、氯化钕、氢氧化钠和乙醇等溶剂作为凝固浴,在不同凝固温度和凝固时间下凝固制备HEC膜。
Sulfuric acid , ammonium chloride , sodium hydroxide and ethanol were selected as coagulation bath under different coagulation temperature and coagulation time to manufacture HEC membranes .
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结果表明:在干湿法纺制三角形截面PAN基碳纤维原丝过程中,凝固浴条件对PAN纤维的截面影响非常明显,同时凝固浴条件和拉伸条件对纤维的力学性能也有非常显著的影响。
The results show that coagulation conditions play an important role on both cross-section shape and mechanical property of PAN fiber during dry-jet wet spinning . The drawing condition also influences the mechanical property of PAN fiber during dry-jet-wet spinning .
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研究了凝固浴组成和工艺条件对PAA形态结构和纤维性能的影响,以及不同酰亚胺化方法对PI纤维形态结构和性能的影响。
The effects of coagulation bath composition and process conditions on the morphology and properties of PAA fiber were studied . The effects of different imidization methods on the morphology and properties of PI fiber were also studied .
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探索了聚丙烯腈(PAN)和大豆分离蛋白(SPI)在NaOH水溶液中进行PAN碱解,然后挤到凝固浴中凝固、交联,制备水解聚丙烯腈(HPAN)/SPI水凝胶纤维的方法。
The preparation of smart hydrogel fibers composed of polyacrylonitrile ( PAN ) and soy protein isolation was presented . The spinning dope was prepared by heating the blending of PAN , SPI and NaOH in aqueous solution in program .
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其次,将PSF多元体系分别以水和醇类作凝固浴,利用成膜过程中透光率实验测得对应体系的相分离特性(瞬时分层或延时分层)。
Secondly , when water and IBA were chosen as coagulation solution , characteristic of phase separation ( instantaneous demixing and delayed demixing ) of multicomponent PSF systems are determined by light transmission in the process of performance membrane .
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质量分数为5%的H2SO4为最佳凝固浴,得到具有最大拉伸强度88.7MPa和断裂伸长率4.1%的纤维素膜。
5 % H_2SO_4 appeared to be the optimal coagulant for preparing the RC film having a maximum tensile strength (( 88.7 MPa )) and elongation at break ( 4.1 % ) .
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结果表明:以甲醇为凝固浴制备的PAA初生纤维,无孔致密,最高拉伸强度和初始模量分别为2.21cN/dtex和40.73cN/dtex;
The results showed that the as-spun PAA fiber prepared with methanol as coagulation bath had a compact structure without any holes and exhibited the maximal tensile strength and initial modulus of 2 . 21 cN / dtex and 40 . 73 cN / dtex , respectively .
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对KojiTerada的实验数据进行分析:表观扩散系数与温度、喷丝孔径和凝固浴浓度有关,对丝条半径的变化具有的两种效应即比表面积和溶剂推动力变化进行分析。
The analysis of the experimental results from Koji Terada showed that the apparent diffusion coefficients were influenced by the temperature , spinneret radius and coagulant concentration . The radius variation of fiber could have two effects , which were the variations of the diffusion surface and the diffusion gradient .
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凝固浴处理对聚氨基葡糖超滤膜分离性能的影响
Effects of Coagulation Bath Treatment on Separation Properties of Chitosan Ultrafiltration Membrane
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最大导丝速度也随凝固浴浓度的增大下降。
The maximum spinning speed decreased with the coagulation bath concentration increasing .
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随着凝固浴温度的升高,所成的膜的透水速率上升。
The ultrafiltration rate of pure water with the coagulation bath temperature increased .
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用乙醇代替甲醇作凝固浴介质可纺性能良好。
The replacement of methanol by ethanol for coagulation goves a good spinnability .
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凝固浴温度对填充聚合物平板膜有很大影响。
Coagulant bath temperature had a strong influence on PU , PES composite flat membrane .
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结果表明:随着凝固浴浓度增大,最大纺丝速度减小;
The results show that the maximum spinning speed decreases with the coagulation bath concentration increasing .
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凝固浴种类直接影响膜结构及性能;
The composition of coagulation bath were much effective for porous structure and blend membranes performance ;