精细胶粉的应用研究

研究了６０．８０。１００１２０目等４种精细胶偻（ＦＲＰ０的基本性能及其在胎面胶中的应用。结果表明，随ＦＲＰ精细化程度增加，掺用５０份ＦＲＰ后ＮＲ硫化胶的拉伸强度和扯屡伸长率均有提高；ＮＲ／ＢＲ并用胎面胶混炼胶的 尼度降低，胶料流动性增加，挤出物外观等级提高；ＮＲ／ＢＲ共混硫化胶的伸强度、扯断伸长率及热空气老化系数提高，撕裂强度 尔Ａ型硬度有所下降，而生热、动态疲劳和磨耗量等均在８０－１００目处出现     

丙烯酸酯橡胶的研究与应用

采用丙烯酸酯类单体通过乳液聚合制备了丙烯酸酯橡胶（ＡＣＭ）。试验研究了ＡＣＭ硫化胶的性能。结果表明,ＡＣＭ引入—ＣＯＯＨ基团,用环氧树脂作硫化剂,可以实现高温快速硫化,且其硫化胶性能良好;增大带有柔性基团的单体（增塑剂）的比例,可以改善ＡＣＭ硫化胶的耐低温性;增大极性大的单体（丙烯腈）的比例,可以改善ＡＣＭ硫化胶的耐油性和耐热性。ＡＣＭ与氟橡胶（ＦＫＭ）并用初步研究结果显示,ＦＫＭ的用量在５０份以上时,并用硫化胶性能接近ＦＫＭ     

氯化聚乙烯橡胶在胶管外层胶中的应用

介绍氯化聚乙烯橡胶（CM）在胶管外层胶中的应用。结果表明，CM与NR，SBR或NBR的并用胶具有优良的耐臭氧老化性能、耐油性能和粘合性能，能够满足不同胶管外层胶的性能要求；在胶管外层胶中应用CM，无需添加设备和改变常规工艺条件，可降低原材料成本。     

四种导电炭黑的性能研究

本文研究了四种具有不同结构度（吸油值）和孔隙度（吸碘值）的导电炭黑对ＮＲ硫化胶物理机械性能及导是性能的影响。实验结果表明，ＮＲ填充ＣＳＦ导电炭黑后，硫化胶的物理机械性能相对最好，导电性能明显优于填充等量ＡＣＥＴ之ＮＲ硫化胶，面稍逊于ＮＪＦ和ＩＮＦ导电炭黑，实现发现，用不同改性剂为黑改性后，可使硫化胶强伸性能明显提高，而导电性能稍有下降。ＣＳＦ等导电炭黑不仅适宜制造复合型导电高分子材料，而且已成功用     

聚丙烯／三元乙丙橡胶／天然橡胶三元并用胶的流变性和机械性能

聚丙烯／三元乙丙橡胶／天然橡胶三元并用胶的机械性能和流变性与聚丙烯／三元乙丙烯橡胶，聚丙烯／天然橡胶二种二地并用胶的有关性能相当。研究结果表明ＰＰ／ＥＰＤＭ并用胶的５０％ＥＰＤＭ能用低成本的天然橡胶代替，并用胶的性能不会明显降低。     

硅橡胶/丙烯酸酯橡胶并用胶的加工与性能

研究了甲基乙烯基硅橡胶（MVQ）／丙烯酸酯橡胶（ACM）并用胶中MVQ与ACM的配比，补强剂，加工工艺及其它添加剂对并用胶性能的影响，结果表明：MVQ与ACM并用后，其耐油性得到较大提高，且随着CM用量的增大，并用胶的耐油性逐步提高；补强剂对提高并用胶耐油性有一定作用，补强剂用量越多，并用胶的耐油性越好；补强剂的加入顺序对并用胶的各项性能有一定影响；加入羟基硅油可降低并用胶的扯断永久变形。     

聚丙烯酸酯橡胶与丁腈橡胶并用的研究

本文探讨了聚丙烯酸酯橡胶(ACM)与丁腈橡胶(NBR)不同的并用方法对其性能的影响。结果表明,生胶并用工艺简单,加工性能良好,硫化胶的耐油性和耐热性好;母胶并用工艺复杂,其硫化胶的强度高。为ACM与NBR的并用提供了依据。     

活化胶粉在轮胎中的应用

在轮胎胎冠胶、胎侧胶及内层胶中掺用５—１０份活化胶粉，虽然胶料的强伸性能有所下降，但能改善废料的动态疲劳性能，提高耐久性能，工艺性能又好，井降低胶料成本，具有明显的经济效益和社会效益。     

四种导电炭黑的性能研究

研究了４种具有不同聚集态结构度（ＤＢＰ吸收值）和孔隙度（吸碘值）的导电炭黑对ＮＲ硫化胶物理机械性能及导电性能的影响。实验结果表明,ＮＲ填充ＣＳＦ导电炭黑后,硫化胶的物理机械性能相对最好,导电性能明显优于填充等量乙炔炭黑的ＮＲ硫化胶,而稍逊于ＮＪＦ和ＩＮＦ填充者。实验发现,用不同改性剂对炭黑改性后,可使硫化胶强伸性能明显提高,而导电性能稍有下降。ＣＳＦ等导电炭黑不仅适合制造复合型导电高分子材料,而且     

原油介质中丁腈橡胶与氟橡胶的磨损性能

在原油介质（不含砂）中以丁腈橡胶（ＮＢＲ）和氟橡胶（ＦＰＭ）与４５＃钢配副为研究对象,采用ＭＰＶ－６００型微机控磨粒磨损试验机研究了２种硫化胶的摩擦磨损性能,通过扫描电子显微镜及能量色散Ｘ射线分析表征了硫化胶的磨痕表面形貌及化学元素含量。结果表明,在载荷为１００Ｎ的条件下,ＮＢＲ硫化胶的摩擦因数随着转速的增大而增加,当转速超过２５０ｒ／ｍｉｎ时,摩擦因数略有下降;ＦＰＭ 硫化胶的摩擦因数随着转速的增大而呈线性增加;ＦＰＭ硫化胶的磨损量略小于ＮＢＲ硫化胶;ＮＢＲ及ＦＰＭ硫化胶的磨损机制均以疲劳磨损为主,低转速下橡胶磨痕比较明显,磨痕由循环应力引起的裂纹萌生和扩展造成;磨损前ＮＢＲ硫化胶表面主要有Ｃ、Ｏ、Ｎ、Ｓ、Ｓｉ等化学元素,磨损后Ｃ元素含量减少,Ｏ元素含量增加,其他化学元素无明显变化;磨损前ＦＰＭ硫化胶表面有Ｃ、Ｏ、Ｆ、Ｓ、Ｓｉ等化学元素,磨损后Ｃ元素和Ｏ元素含量均有所增加,而Ｆ元素含量明显减少。     

氟橡胶的改性研究进展

从氟橡胶的主要性能出发，介绍了橡胶并用在氟橡胶改性中的研究进展。氟橡胶的并用包括氟橡胶之间的并用，FPM／ACM，FPM／EPDM，FPM／NBR，FPM／IR及FPM／MVQ的并用。这些并用胶都不同程度地改善了氟橡胶的低温性能、降低了混炼胶的价格。     

Finite pointset method for simulation of the liquid–liquid flow field in an extractor

Finite pointset method (FPM) is applied for the simulation of the single- and two-phase flow field in a rotating disc contactor (RDC) type extraction column. FPM is a numerical method to solve fluid dynamic equations. This is a Lagrangian and meshfree particle method, where the particles move with fluid velocity and carry all information necessary for solving fluid dynamic quantities. The simulations are validated by single- and two-phase 2D particle image velocimetry (PIV) measurements. In addition, the results are compared to simulations of the commercial CFD code Fluent. The results show that FPM can predict the one- and two-phase flow field in the RDC, whereas the predicted velocities are in good agreement with the experimental ones. FPM also bears comparison with the results of the commercial CFD code Fluent.     

超细HMX的表面能研究

用DCAT21型表面/界面张力仪测量了原料HMX（奥克托今,45μm～62μm）、超细HMX（0.2μm～1.7μm）和黏结剂FPM2602的接触角,并计算出它们的表面能。分析了HMX随粒径变化时其表面能的变化规律和黏结剂包覆超细HMX表面能的基本要求。结果表明,细化HMX表面能随粒径的减小有增加的趋势;黏结剂的表面能低于超细HMX的表面能,理论和实验均证明黏结剂FPM2602能包覆于超细HMX的表面。     

纳米金刚石对橡胶力学性能的影响

纳米金刚石晶粒细小，小表面积大，可以添加在橡胶中来提高它的力学性能。本文对纳米金刚石添加在天然橡胶、氯橡胶后对其力学性能的影响进行了实验研究，对橡胶老化前后进行了力学性能测试。结果表明，纳米金刚石对天然橡胶的性能基本无影响，对氟橡胶老化前起有利作用，对老化后的氟橡胶基本无影响。     

几种耐油橡胶材料的γ辐射效应研究

研究了氟橡胶(FPM)、丁腈橡胶(NBR)和氢化丁腈橡胶(HNBR)3种耐油密封材料的力学性能和耐油性能在不同剂量γ射线作用下的变化,结果表明,在0～200kGy辐射吸收剂量范围内,FPM、NBR和HN-BR的硬度、定伸应力及拉伸强度增大,拉断伸长率降低;FPM和HNBR无论辐照与否,均具有优异的耐热和耐油性能;NBR无法在150℃长期工作。本研究所得试验数据,对优选在射线辐射环境中使用的橡胶密封材料具有实际意义。     

Temperature and shear rate distributions of gas-assisted injection molded (GAIM) polypropylene and the application in forecast of cooling time

An umbrella handle product of polypropylene molded by gas-assisted injection molding (GAIM) was studied from both aspects: theoretical modeling and simulation as well as in situ temperature measurement. The simulation was primarily through the use of the commercial software Moldflow (version 6.1) coupled with enthalpy transformation method (ETM) in an attempt to investigate the shear rate and temperature fields during GAIM process. A four-parameter model (FPM) was used to nonlinearly fit the temperature decays during the GAIM cooling stage on the basis of a three-parameter model (TPM) raised previously in our group. The FPM showed perfect fitting effect as well as presented fairly acceptable cooling time (t_c) prediction in comparison to experimental data, which could better reflect the nature of crystalline polymers during melt crystallization process. The understanding of the shear rate and temperature fields would be of practical importance to the further research on relationship of “processing–structure–property” as well as the optimization of cooling parameters for industrial GAIM operations of crystalline polymers. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019 , 136, 47390.     

含超细高氯酸铵核-壳型复合材料的制备

用超临界流体沉积技术中的SAS法制备了超细HMX，AP，CL-20以及Al—FPM2602核-壳型复合材料。通过氟橡胶FPM2602在超细HMX，AP，CL-20和Al混合物表面的沉积，达到对混合物进行包覆改性的目的。吸湿性试验表明，该核壳型复合材料的抗湿能力得到明显提高。对该超细核壳型复合材料进行了撞击感度、火焰感度、爆发点测试。结果表明，与未包覆的混合物相比，该超细核-壳型复合材料的性能有了一定的提高。超临界流体沉积技术中的SAS法是制备含水溶性超细含能复合材料的绿色环保方法。     

Theoretical modification of the finely porous model for reverse osmosis transport

One of the most significant models used to describe and predict the performance of reverse osmosis type membranes is the finely porous model (FPM). In this paper, the basic assumptions of the model are examined and modified. The two most serious problems with FPM are that an incorrect form of material balance on the solute is used and that the osmotic pressure effects are not completely taken into account for electrolytes. A modified model (called MD-FPM), which is based on the same physical precepts is derived. Equations describing the concentration profile for both models have been derived and compared. It has been shown that the FPM can predict physically unacceptable results. Difficulties in using the parameters from the model for prediction or for membrane development work are discussed. Simulation results for the MD-FPM model are consistent with what is expected for reverse osmosis type membranes.     

空气和液压油环境中几种耐油橡胶材料γ辐射效应研究

通过提高辐射剂量率,缩短辐射时间,研究了空气和液压油环境中的丁腈橡胶(NBR)、氯丁橡胶(CR)、氟橡胶(FPM)和聚氨酯橡胶(PU),4种耐油橡胶材料在不同吸收剂量和不同剂量率下硬度与质量的变化。结果表明,在0~200kGy范围内,PU的γ辐射效应受所处介质与吸收剂量的影响;剂量率对处于相同介质中的NBR、CR、FPM、PU的辐射效应影响不大;NBR与液压油的物质交换最为明显。     

Development of a knowledge based hybrid neural network (KBHNN) for studying the effect of diafiltration during ultrafiltration of whey

The membrane surface dynamics is very difficult to predict and can be roughly estimated by the available models but a true depiction is always difficult since the magnitude and direction of driving forces change as a function of time. The present study is an effort to address the issue, so that the combinatorial approach of deterministic and stochastic modelling might present a better understanding of membrane dynamics. The effect of diafiltration has also been incorporated to investigate the effects it has on the membrane. A stochastic model developed by a knowledge based hybrid neural network (KBHNN) was trained using the Levenberg–Marqurt algorithm where the film layer model was used as the deterministic layer, called the first principle model (FPM). Present work employs two different types of KBHNN architecture with an effort to understand the suitability and applicability of the hybrid network in case of predictions for an ultrafiltration (UF) process. In one sort of architecture neural part was in series with the FPM and in the other one it was in parallel with the FPM. The high correlation coefficient (R²) value portrays the correctness and preciseness of the underlining assumptions and establishes the validity of the developed network.