用于润滑油改性的乙丙共聚物(J-0050)产品通过中油公司鉴定

由中国石油吉化股份有限公司有机合成厂与中国石油吉林石化公司研究院合作开发的用于润滑油改性的乙丙共聚物 (Ｊ 0 0 5 0 )产品 ,于2 0 0 1年 5月 1 0日在北京通过了由中国石油集团公司科技评估中心组织的鉴定。国内合成橡胶及润滑油行业的知名专家对该产品给予了高度评价 ,一致认为 :“该产品经过小试研究 ,直接在引进的 2万ｔ·ａ- 1 ＥＰＲ装置上实现了工业化生产 ,生产工艺技术成熟可靠 ,产品质量稳定”。台架试验和应用试验结果表明 ,这种产品的主要性能指标达到国外同类产品水平 ,填补了国内空白 ,居国际先进水平 ,可替代进口产品 ,…     

乙丙共聚物粘度指数改进剂应用前景广阔

粘度指数改进剂主要用于调配多级油，改善粘温性能，改善低温启动性和泵送性，减少发动机油耗和磨损。乙丙共聚物粘度指数改进剂热稳定性好，稠化能力强，在柴油机中积炭少，剪切稳定性好，用作柴油机气缸润滑油的粘度指数改进剂尤为合适。20     

乙丙共聚物粘度指数改进剂应用前景广阔

乙丙共聚物粘度指数改进剂应用前景广阔     

用于润滑油改性的乙丙共聚物项目获技术创新奖

用于润滑油改性的乙丙共聚物项目获技术创新奖     

润滑油改性用乙丙共聚物开发成功

由吉化有机合成厂和吉化研究院共同承担的润滑油改性用乙丙共聚物 (Ｊ 0 0 50 )研制项目于 2 0 0 0年 1月 2 5日通过吉化公司组织的专家验收。乙丙共聚物作为润滑油粘度指数改进剂因具有良好综合性能而得到广泛应用 ,其突出的特点是热稳定性好、稠化能力强 ,在柴油机中积炭少、剪切稳定性好 ,尤其适于作柴油机气缸润滑油的粘度指数改进剂。吉化公司有机合成厂引进日本三井油化的 2万ｔ·ａ-1 的ＥＰＤＭ装置虽有 2 4个牌号 ,但其产品均不适用于润滑油改性 ,国内润滑油改性用乙丙共聚物全部依赖进口。润滑油改性用乙丙共聚物 (Ｊ 0 0 50 )的…     

乙丙共聚物相对分子质量分布的研究

以三氯氧钒-混合烷基铝、改性三氯氧钒-倍半烷基铝、三氯氧钒-倍半烷基铝、三乙酰丙酮钒-三异丁基铝为催化体系,以己烷为溶剂、氢气为相对分子质量调节剂,研究了不同催化体系对聚合物相对分子质量分布的影响。对主催化剂的加入量、助催化剂与主催化剂的比例、氢气的体积分数对聚合物相对分子质量分布的影响进行了较详细的研究。结果表明,采用不同的催化体系,得到的聚合物相对分子质量分布不同,n(Al)/n(V)对聚合物相对分子质量分布无影响。     

乙丙共聚物粘度指数改进剂应用前景广阔

粘度指数改进剂主要用于调配多级油，改善粘温性能，改善低温启动性和泵送性，减少发动机油耗和磨损。乙丙共聚物粘度指数改进剂热稳定性好，稠化能力强，在柴油机中积炭少，剪切稳定性好，用作柴油机气缸润滑油的粘度指数改进剂尤为合适。２０世纪６０年代末、７０年代初美国几大公司以及意大利AgipPetroli等公司先后开发成功乙丙共聚物粘度指数改进剂（包括三系物、OCP）。其产品除了具有高稠化能力、好的剪切稳定性、粘温性能等优点外，又因为其生产原料来源丰富、生产工艺简单、产品价格便宜、综合性能超群而得到广泛的应用。到２０世…     

乙丙共聚物粘度添加剂的试生产

在2000t/a乙丙橡胶聚合装置上,采用以石油醚为溶剂、三氮氧钒-倍半氯代乙基铝为催化剂的常压溶液连续聚合法,并加入三氯乙酸乙酯进行分子量调节,制得适宜用作润滑油粘度指数改进剂的乙丙二元共聚物胶液。研究和设计了生产该乙丙共聚物的后处理工艺,中试工艺为连续操作,干胶处理能力为250t/a。在此基础上,设计并建成了年产干胶2000t的工业生产装置,该装置流程简单,操作容易,已进入正常工业生产。     

用于润滑油改性的乙丙共聚物项目获技术创新奖

由吉林石化分公司研究院与吉林化学股份公司有机合成厂共同开发的一项具有国际先进水平的科研新成果———用于润滑油改性的乙丙共聚物系列产品,日前获中国石油天然气集团公司技术创新二等奖。这项技术是针对国内市场需求,以引进日本三井油化年产2 0kt乙丙橡胶装置为基础,以乙烯、丙烯为主要原料,采用改性钒、铝为催化体系,己烷为溶剂,氢气为相对分子质量调节剂的基础上,制定了研究方案,通过试验验证了方案的可行性,J - 0 0 5 0经过小试研究,样品达到了国外同类产品水平。J - 0 0 5 0由小试直接实现工业化,通过在年产2 0kt乙丙橡胶装置上进…     

乙丙共聚物粘度指数改进剂应用前景广阔

粘度指数改进剂主要用于调配多级油,改善粘温性能,改善低温启动性和泵送性,减少发动机油耗和磨损。乙丙共聚物粘度指数改进剂热稳定性好,稠化能力强,在柴油机中积炭少,剪切稳定性好,用作柴油机气缸润滑油的粘度指数改进剂尤为合适。60年代末、70年代初美国几大公司如:Exxon Co、DuPont Co、Amoco Co、Ethyl Co、Texaco Co以及意大利Agip Petroli等公司先后开发成功乙丙共聚物粘度指数改进剂(包括三系物、OCP)。其产品除了具有高稠化能力、好的剪切稳定性、粘温性能、氧化安定性等优点外,又因为其生产原料来源丰富、生产工艺简单、产品价格便宜、综合性能超群而得到广泛     

用于润滑油改性的乙丙共聚物的合成

以V-A1体系为催化剂,己烷为溶剂,采用分子量调节剂合成出了组成、结构、分子量及分子量分布与美国Exxon-8921基本相同的润滑油改性用乙丙共囊物。经应用评定证明其综合性能好,适合调制各种中、高档多级内燃机油。并在2万t／aEPDM生产装置上实现工生化。     

熔融法制备分散型黏度指数改进剂及其对增黏性能的影响

以具有较低门尼黏度的三元乙丙橡胶(EPDM)为原料,通过添加引发剂与提高双螺杆挤出机螺杆转速的应力诱导复合引发方法,研究EPDM与马来酸酐(MAH)的官能化反应,表征官能化产物胺化反应后作为分散型黏度指数改进剂的性能。结果表明:官能化反应主要是由引发剂引发和应力诱导引发共同作用所完成;所得分散型黏度指数改进剂的增稠能力都随着螺杆转速的增加而增大,当螺杆转速为800 r/min时,黏度指数达218,稠化能力最强为14.47 mm2/s。当胺化物加入量为0.24%时,黏度指数改进剂的黏度指数达223,稠化能力达到最大值14.74 mm2/s。     

润滑油粘度指数改进剂的使用性能与发展

介绍了粘度指数改进剂（VII）的作用原理和使用性能要求，概述了国内外研究和生产的几种粘度指数改进剂，对聚甲基丙烯酸酯（PMA）、乙丙共聚物（OCP）、氢化苯乙烯双烯共聚物（HSD）等几种粘度指数改进剂在国内外的发展情况进行了综述。     

燃油碳烟颗粒的表面特性与润滑油黏度行为

发动机燃油碳烟颗粒不可避免地会进入润滑油中,引起润滑油黏度的增长,从而影响发动机的润滑特性和使用性能。借助傅里叶红外光谱仪、X射线光电子能谱仪、全自动微孔物理吸附和化学吸附分析仪、光学法接触角/界面张力仪、Zeta电位仪等仪器,对比分析了生物质燃油碳烟颗粒(BS)和0^#柴油碳烟颗粒(DS)的表面特性,探讨了BS和DS对液体石蜡(LP,润滑油基础油的模拟物)和碳烟分散体系的黏度的影响及碳烟表面特性对黏度的影响机理。结果表明,40℃时油品的相对黏度随碳烟浓度的增加呈指数函数增加,并且相同碳烟浓度下DS污染的油品相对黏度更大,高浓度碳烟污染的油品呈明显剪切稀化行为,DS污染的LP的黏度受剪切转速的影响更大。BS和DS表面主要元素是碳和氧,且BS氧含量高于DS,表面均带有一些含氧官能团。 表面特性分析显示,DS的比表面积大于BS,表面能高于BS,亲油性弱于BS,致使DS在LP中比BS更易团聚成大颗粒,这是DS对润滑油黏度的影响大于BS的主要原因。     

Synthesis of a star‐shaped poly(ethylene‐co‐propylene) copolymer as a viscosity index improver for lubricants

A saturated star‐shaped poly(ethylene‐co‐propylene) copolymer, (EP)_star, has been synthesized for use as a viscosity index improver in lubricants. Polyisoprene arms were first anionically synthesized using n‐butyllithium as the initiator, followed by a linking reaction with divinylbenzene at the optimum temperature of 60°C. The resulting star‐shaped polyisoprene, (I)_star, was then hydrogenated to eliminate the double bonds of the polyisoprene forming the poly(ethylene‐co‐propylene) structure. The degree of branching (number of arms on each molecule) increases with increase in the mole ratio of divinylbenzene to n‐butyllithium. Increasing the arm length adversely affects the linking efficiency and a minimum amount of tetrahydrofuran (THF) at a THF:n‐butyllithium molar ratio of 1.12 was needed in order to achieve a maximum linking efficiency of approximately 85%. The T_g of poly(ethylene‐co‐propylene) is about 10°C higher than that of the original polyisoprene. Compared with (I)_star, (EP)_star has a thermal decomposition temperature that is 50°C higher but is independent of the arm length or the degree of branching. Viscosity measurement results for (EP)_star reveal that intrinsic viscosity depends only on the arm length but not the degree of branching. Adding 1 wt % of (EP)_star markedly increases the viscosity index of a LN base oil. The addition of 1 wt % of (EP)_star increases the viscosity index (95 for base oil) up to a number between 111 and 145, with the exact number depending upon its arm length and degree of branching. With a fixed arm length, an (EP)_star having a higher degree of branching increases the viscosity index more than one having a lower degree of branching. On the other hand, the viscosity index increases with increase in the arm length when the degree of branching is fixed. Adding 1 wt % of (EP)_star also causes a change in the pour point of the lubricant with the pour point decreasing with increase in the degree of branching. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 83: 1911–1918, 2002     

基于黏度的润滑油特性通用关联(英文)

Lubricating mineral base oils are normally extracted from lube-oil cuts with furfural solvent.Aromatic content in the raffinate phase from extraction process is an essential parameter that affects the quality of the lubricating base-oils.For determination of aromatic content by the usual ASTM D3238 method,density,refractive index and molecular weight of the raffinate are required.In this work,a new generalized correlation is developed for de-termination the aromatic content by using only the measured viscosity of lubricating oil.With a mole fraction of aromatic compounds,the kinematic viscosity may be obtained at any temperature between 60-100°C along with their molecular weight and refractive index.     

Preparation and characterization of a star‐shaped polystyrene‐b‐poly(ethylene‐co‐propylene) block copolymer as a viscosity index improver of lubricant

A saturated star‐shaped polystyrene‐b‐poly(ethylene‐co‐propylene) block copolymer, (SEP)_star, was synthesized for use as a viscosity index improver in lubricants. Polystyrene‐b‐polyisoprene arms were first made anionically, followed by a linking reaction at the optimum temperature of 60°C with divinylbenzene. The resulting star‐shaped (SI)_star was hydrogenated to eliminate the double bonds on the polyisoprene segment, thus forming the star‐shaped (SEP)_star. The number of arms on each molecule increased with an increase in the mol ratio of divinylbenzene to n‐butyllithium. Increasing the arm length adversely affected the linking efficiency but caused a slight increase in the degree of branching. The T_g of the poly(ethylene‐co‐propylene) block was 13°C higher than that of the original polyisoprene block. Compared with (SI)_star, (SEP)_star has a thermal decomposition temperature 50°C higher but independent of the arm length or the degree of branching. Viscosity measurements for (SEP)_star revealed that intrinsic viscosity depends only on the arm length, but not on the degree of branching. Adding 1 wt % of (SEP)_star markedly increased the viscosity index of a HN base oil. With a fixed arm length, a (SEP)_star having a higher degree of branching increased the viscosity index more than that having a lower degree of branching. On the other hand, the viscosity index increased with an increase in the arm length when the degree of branching was fixed. The addition of 1wt % of (SEP)_star increased the vioscosity index up to a number between 111 and 166, with the exact number depending upon its arm length and degree of branching. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 79: 1838–1846, 2001     

降低润滑油清净剂浊度的方法研究

通过对润滑油清净剂在合成及对最终产品的加工处理过程中浊度、粘度的变化情况,试验研究发现,产品中未除尽悬浮渣是影响润滑油清净剂产品浊度的主要原因,提出了可行的降低润滑油清净剂浊度的方法。     

Performance of higher poly(alkyl lactate acrylate)s as viscosity modifiers in vegetable oils

Recently, bio-derived materials such as vegetable oils are significantly employed in lubricating oil formulations due to its high flash point, high lubricity, low evaporation loss, renewability, biodegradability, and eco-friendliness when compared to mineral oil. We investigated the performance of seven poly(alkyl lactate acrylate)s as viscosity modifiers in two vegetable oils, namely, coconut oil and sunflower oil, which differ in the percentage of polar compounds and degree of unsaturation. Poly(alkyl lactate acrylate)s having alkyl as hexyl to dodecyl group in different concentrations between 1 and 2 wt% were added to coconut and sunflower oil and parameters such as thickening power or Q factor, kinematic viscosity (μ), and viscosity index (VI) were calculated. The μ values at 40°C and 100°C of vegetable oils studied were lower than commercially available SAE20W40 engine oil, but the VI of coconut and sunflower oil was higher by about 22%. Value of Q factor higher than 1, indicated that these poly(alkyl lactate acrylate)s were VI improvers. VI increased with increase in the polymer concentration in both the vegetable oils. The length of the alkyl side chain of these polymers and the polarity of vegetable oil had predominant effect in determining the values of VI of vegetable oils. By using these polymer additives, VI was improved by 85.5% in coconut oil and by 61.7% in sunflower oil. Varying the concentration and alkyl group of these additives, one can largely modify the viscosity ranges enabling them to be used in different lubricating applications.     

小洼油田特稠油降粘剂配方研究

采用荧光法测定了辽河油田小洼油田3050井特稠油乳化HLB值。以非离子型表面活性剂、阴离子型表面活性剂为主剂,快速渗透剂为辅剂,按一定比例合成得到了水基降粘剂配方。室内实验结果表明,该降粘剂配方具有良好的乳化降粘性能(降粘率不低于98%)和配伍性能(与破乳剂),是一种较为理想的特稠油降粘用水基降粘剂。