C 5 fraction is first used as raw material, which is polymerized for 6 h under the conditions of temperature 240℃ and pressure 5.5 MPa to obtain C 5 oligomer. Then, C 5 oligomer is mixed with dicyclopentadiene（DCPD） and C 9 fraction in a certain proportion, and reacted for 10 h under the conditions of pressure 0.4～0.5 MPa and temperature 240℃ to obtain light colored petroleum resin. The advantages of this two-stage thermal polymerization synthesis method are: first, reducing the volatilization of C 5 fraction, making the process safer and environmentfriendly; second, reducing the resin polymerization pressure and making the operation safer.

本文以C5馏分、双环戊二烯(DCPD)和C9馏分为原料,采用两段热聚合成法进行共聚反应,制备了C5/DCPD/C9共聚石油树脂.首先以C5馏分为原料,在温度240℃、压力5.5MPa的条件下,热聚合反应6h,得到碳五低聚物,再将碳五低聚物、双环戊二烯(DCPD)、C9馏分三者的混合物,在压力0.45～0.5MPa、温度为245℃的条件下反应5～9h,得到色号为3.0#～4.0#的浅色石油树脂.

In this paper,C 5 /DCPD/C 9 copolymer petroleum resin was prepared by two-stage thermal polymerization with C 5 fraction,dicyclopentadiene （DCPD） and C 9 fraction as raw materials.Firstly,C 5 fraction is used as raw material,which is polymerized for 6h under the conditions of temperature 240℃and pressure 5.5MPa to obtain C 5 oligomer.Then,the mixture of C 5 oligomer,dicyclopentadiene （DCPD） and C 9 fraction is reacted for3-8 hours under the conditions of pressure 0.40-0.55MPa and temperature 250℃to obtain light colored petroleum resin with color number 3.0-4.0.

本文以C5馏分、双环戊二烯(DCPD)和C9馏分为原料,采用两步热聚合成工艺,在压力0.4～0.5MPa、温度240℃的条件下反应,制备了浅色的C5/DCPD/C9共聚石油树脂.在共聚反应温度达到140℃左右时,增加预聚反应过程控制,预聚反应2h,再将反应温度升至240℃反应10h.实验结果表明,增加预聚反应过程控制,可确保反应过程平稳进行,副反应减少,无碳化现象发生,明显提高了石油树脂产品的品质.

In this paper,C 5 /C 9 copolymer petroleum resin with light color was obtained from C 5 fraction,dicyclopentadiene（DCPD） and C 9 fraction under the conditions of pressure 2.2-2.6MPa and temperature of 240℃for 10 hours.The addition of an appropriate amount of C 5 fraction and DCPD makes the concentration of active components in the raw material higher,which is conducive to the reaction and reduces the color number of the product.Thermal polymerization synthesis reaction,no catalyst,no wastewater and waste residue,and the process is green and environment-friendly.

In order to reduce the color number and improve the production efficiency of the thermopolymerized petroleum resin,the C 5 ,DCPD,C 9 copolymer was prepared by two-stage thermopolymerization with C 5 fraction,DCPD and C 9 fraction as raw materials. The C 5 oligomer was prepared by thermal polymerization of C 5 fraction at 240℃ and 5.5 MPa pressure for 6 h,then the mixture of C 5 oligomer,DCPD and C 9 fraction was prepared,under the condition of pressure 0.55-0.70MPa and temperature 260℃,the light-colored petroleum resin with color number 4.0-5.0 was obtained by reaction for 3-7 hours. At the same time,the optimum reaction time was determined to be 4hours at 260℃. The softening point,Chroma,acid value and ash content of the obtained petroleum resin were all up to the national standard of high-grade products.

该文介绍了多种传统纤维材料如天然纤维、化学纤维、金属纤维、碳纤维等多方面的最新应用,论述了纤维材料在阻燃、抗菌、抗紫外、热管理与可穿戴新型多功能领域的发展,综述了近年来功能纤维材料的最新研究进展,并对其在今后的发展应用前景进行展望,多功能纤维材料朝着功能化、智能化与电子化方向快速发展,并在能源、环保、智能、可穿戴甚至对我国的产业转型与产业升级都有至关重要的作用.

本文讨论了超级电容器(SCs)的电解液以及器件电压窗口的测定方法和评定标准,介绍了2种常用的测试SCs实用性能的方法,即循环测试法和保压测试法,并对完全利用SCs的理论电压窗口以构建高能量密度的SCs的前景进行了展望.

石油化工是国民经济的支柱产业,兰州石化职业技术学院始终以石油化工为特色,在校企合作、产教融合取得了一定成绩.在石油化工产业转型升级以及国家"一带一路"石化企业走出去的背景下,职业院校以产教融合型企业建设和培育为切入点,探索研究职业院校助建和助育产教融合型企业之策,全面实施校企协同育人,逐步构建校企命运共同体.探索构建"共商、共建、共管、共享、共赢"的校企产教协同发展合作机制.

本文详细报道了以甲基丙烯酸三氟乙酯为氟改性剂,以二乙烯基苯为交联剂的氟丙树脂溶液聚合工艺,研究了不同工艺下的氟碳树脂性能,通过红外光谱确定树脂为交联型氟改性丙烯酸树脂,该树脂具有常温挥发干燥特性,具有优异耐酸、碱、盐、水等综合性能,SEM电镜表明成膜性好,热重分析表明涂层耐高温,可以在400℃下长期使用.

详细报道了以甲基丙烯酸三氟乙酯为氟改性剂,以二乙烯基苯为交联剂的氟丙树脂溶液聚合工艺;所得氟改性树脂清澈透明,通过红外光谱表征,确定该树脂已共聚为交联网状结构;该树脂具有常温挥发干燥成膜特性;所形成的膜具有优异耐酸、碱、盐、水等综合性能;SEM电镜表明成膜性好,热重分析表明该树脂起始热分解温度449.3℃,失重50％时的热分解温度为522.6℃,外延终止温度577.2℃,说明涂膜耐高温,可以在400℃下长期使用.

详细报道了以甲基丙烯酸三氟乙酯为氟改性剂,以二乙烯基苯为交联剂的氟丙树脂溶液聚合工艺;所得氟改性树脂清澈透明,通过红外光谱表征,确定该树脂已共聚为交联网状结构;以其为成膜物,制成的氟碳涂料具有常温自干特性,光泽高,硬度大,耐酸碱盐水等综合性能优异;热重分析表明该树脂起始热分解温度428℃,失重50％时的热分解温度为499.5℃,说明为耐高温漆,可以在400℃下长期使用;SEM电镜表明该树脂成膜性好,添加纳米二氧化钛后的白色漆膜具有细腻微凸结构,具有荷叶效应.

在石油树脂阳离子聚合生产过程中,聚合物不能直接使用,必须通过添加终止剂来完成聚合反应终止.常用终止方法有碱洗、酸洗或水洗,工艺复杂,残渣废液难处理,环境污染大,产率低,台时长.针对此问题,选用蛭石和高岭土为载体,预先负载石油树脂阳离子聚合反应链终止剂焦磷酸三聚氰胺,得到集链终止与过滤为一体的功能复合助滤剂.利用蛭石遇热膨胀和焦磷酸三聚氰胺遇热分解产生难燃气体特性,该助滤剂残渣又被直接用于制备膨胀型高氯化聚乙烯防火涂料,过滤残渣被有效利用,解决了环境污染问题.通过XRD、SEM、TG等方法进行结构及性能分析,并详细阐述了聚合反应链终止、助滤和阻燃机理.

目前,在低温阳离子聚合法生产石油树脂过程中,需用碱洗、酸洗或水洗完成聚合反应终止,然后通过过滤、减压蒸馏,得到石油树脂.后处理工艺复杂,环境污染大,产率低,台时长.针对聚合反应难终止和后处理难的问题,选用蒙脱土和沸石为载体,通过吸附焦磷酸三聚氰胺,得到集链终止与过滤为一体的新型复合助滤剂,解决了环境污染问题,提高了生产效率.通过XRD、BJH、SEM等分析,确定了最佳配比蒙脱土∶沸石=3∶7,并详细阐述了聚合反应链终止和助滤机理.

选用蛭石和高岭土为载体,通过吸附六次甲基四胺,制备出集链终止与过滤为一体的新型复合助滤剂,并将过滤完后的助滤剂残渣制备膨胀型氯化橡胶防火涂料.经XRD、BJH、SEM、TG等表征方法进行结构及性能分析,涂层的各项性能均提高.残渣被有效利用,解决了环境污染问题.并详细阐述了聚合反应链终止、助滤和阻燃机理.

在石油裂解制乙烯的生产过程中会产生大量合烯类化合物的混合溶剂,通常可用以制备石油树脂.在低温阳离子聚合法生产石油树脂过程中,需用碱洗、酸洗或水洗完成聚合反应终止,然后通过过滤、减压蒸馏,得到石油树脂.后处理工艺复杂,环境污染大,产率低,台时长.本文针对聚合反应难终止和后处理难的问题,选用膨润土和珍珠岩为载体,通过吸附氰尿酸三聚氰胺,得到集链终止与过滤为一体的新型复合助滤剂,解决了环境污染问题,提高了生产效率.通过XRD、BJH、SEM等分析,确定了最佳配比膨润土∶珍珠岩=2∶8,并详细阐述了聚合反应链终止和助滤机理.

A large number of mixed solvents containing vinyl compounds will be accompanied in the process of ethylene productions produced by petroleum cracking. The mixed solvents can be used to prepare petroleum resin. In the low temperature cationic polymerization pro-cess, alkaline, acid or water wash will be used to terminate the polymerization. Then, petroleum resin will be obtained after filtration and distillation. The process is complicated. Environmental pollution is serious. Yield is low and production time is longer. Regarding the problems, perlite and bentonite are selected as filter adsorbed MCA. The new complex filter has chain termination and filtration properties. The filter waste was used to prepare intumes-cent perchlorethylene fire retardant coating because perlite will expand and melamine cya-nurate will break down as CO2、H2O、N2、NH3、NO1～3 when they were heated. The method were used for analysis, such as XRD、BJH and SEM. The mechanisms of polymerization chain ter-mination, filter preparation and flame retardant are described.

用阳离子聚合法生产石油树脂,所得高聚物为活性聚合物,需经碱洗、酸洗或水洗终止聚合反应.链终止工艺复杂,酸碱盐废渣难处理,环境污染大,产率低,台时长.本文针对此问题,选用珍珠岩和膨润土为载体,通过吸附氰尿酸三聚氰胺,制备得到集链终止与过滤为一体的新型复合助滤剂.利用氰尿酸三聚氰胺能打开环氧树脂中的环氧基形成超支化结构,从而使之固化的原理,直接用助滤剂残渣制备了环氧底漆固化剂.通过XRD、BJH、SEM、图表等手段,详细阐述了聚合反应链终止、助滤和环氧漆固化的机理.

With a new type of nickel oxythiomolybdate and ammonium tetrathiomolybdate as catalyst precursors,a series of different proportion of Ni/Mo(molar ratio)unsupported hydrogenation catalysts were synthesized by solid state reaction,the structure,pore volume,specific space area were characterized by X-ray diffraction(XRD),field emission scanning electron microscope(FESEM),Brurauer Emmett Teller(BET),etc.Dibenzothiophene (DBT)and naphthalene were used as model compounds,hydrodesulphurization and hydrosaturated performance of aromatic hydrocarbons were investigated in a 250mL intermittent high-pressure reactor.The results showed that the prepared Ni-Mo unsupported hydrogenation catalyst had Ni3S2 and MoS2 crystal phase,and with the decreasing of nickel content,the specific surface area and pore volume showed the increasing trend;under the conditions of reaction temperature 6.5MPa,reaction temperature 280℃,volume velocity 0.9h-1,the conversion of DBT was 99.79%,and SNiMo had the best deeply hydrogenated ability.

介绍兰州汇丰石化有限公司芳烃厂25kt/a苯乙烯抽提装置的情况,分析了制约苯乙烯抽提装置长周期运行的因素和产生的原因,提出预防与整改措施.