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- Keywords LDPE film;acrylonitrile;BPO;surface modification;surface grafting polymerization;vapour phase polymerization;barrier property; LDPE膜;丙烯腈;过氧化苯甲酰;表面改性;表面接枝聚合;气相聚合;阻隔性;
- vapour phase polymerization 气相聚合
- The polymer of maleic acid was first prepared by water phase polymerization with maleic anhydride,and then esterified with cetric acid to form durable press finishing agent. 采用马来酸酐水相聚合生成聚马来酸酐,然后与柠檬酸酯化合成可固化的印染助剂聚多元羧酸酯。
- This thesis was designed to study vapour phase surface grafting polymerization of acrylonitrile onto low density polyethylene (LDPE) film using benzoyl peroxide (BPO) as an initiator. 本文主要以低密度聚乙烯膜(LDPE)为基体膜，以过氧化苯甲酰(BPO)为引发剂，对丙烯腈(AN)气相表面接枝聚合反应进行了系统研究，以探讨接枝反应机理、优化反应条件，目的在于建立聚烯烃材料表面改性的新方法； 同时对接枝膜的阻氧性能进行了研究。
- Vapour phase chromatography has rapidly become one of the most successful analytical techniques. 气相色谱法已经迅速成为最成功的分析方法之一。
- Vapour phase hydrogenation of furfural was employed to produce 2 methylfuran through a copper ammonia complex catalyst. 采用负载型铜氨络合物催化剂进行糠醛气相加氢制2甲基呋喃。
- In gas phase polymerization fluidized-bed reactor (FBR), polymerization rate, devolatilization rate, cost of post-treament after polymeric process and polymer properties may be affected by polymer particle size distribution. 气相法流化床聚乙烯生产过程中,聚乙烯颗粒粒径分布影响聚合速率、脱挥速率、后处理工序生产成本和最终的聚乙烯物性。
- Equilibration is then carried out in a separate chamber and the vapour phase is carried onto the column, taking the precautions necessary to avoid any changes in the equilibrium. 在隔离箱中实现平衡，气相被携带进入色谱柱，必要的注意，避免平衡发生变化。
- The vapour phase ortho-selective alkylation of phenol with methanol was investigated over spine1-type cobalt chromite catalyst with K as the supported catalyst. 摘要研究了具有尖晶石结构的铬酸钴及负载钾的铬酸钴催化剂上苯酚和甲醇气相邻位烷基化反应。
- The effects of prepolymerization and the differences in apparent kinetics between gaseous phase polymerization and slurry polymerization are also briefly described. 同时对预聚合的作用及气相聚合与淤浆聚合表观动力学行为的不同性也作了简要介绍。
- The Ti/SiO_2 catalyst used for gas phase polymerization of propylene and ethylene/propylene consists of SiO_2, BEM, 2, 2, 2-trichloroethanol, TiCl_4, etc. 以SiO_2、丁基乙基镁(BEM)、三氯乙醇、TiCl_4为主要原料合成了Ti/SiO_2催化剂。
- This paper presents a review concerning the Ziegler-Natta catalysts for gaseous phase polymerization of ethylene and typical methods of preparing the catalysts. 本文综述了乙烯气相聚合催化剂研究状况,列举了一些制备气相聚合催化剂有代表性的方法。
- A technique is presented for the vapour phase epitaxy of GaxIn1-xAs in the system of AsCl3/Ga/In/H2 using a Ga/In alloy sources it is characteristic of excellent reproducibility, homogeneity and ease-to-obtain GaxIn1-xAs layers with high purity. 本文描述了一种汽相外延Ga_xIn_(1-x)As的技术:在AsCl_3/Ga/In/H_2体系中,采用Ga/In合金源汽相生长Ga_xIn_1As。
- The solid phase polymerization equipment needs high quality nitrogen, and the work conditions for the purified system equipment of nitrogen is acrimonious. The structure design and the manufacture process of nitrogen heat changer are also introduced. 固相缩聚装置氮气质量要求高 ,氮气净化系统设备工作条件苛刻 ,介绍了氮气换热器的结构设计和制造工艺
- The homogenisation temperature, that is the temperature at which the fluid and vapour phases coalesce, is the minimum temperature of depositionof the mineral. 均化温度，即流体与汽态聚结温度，是矿物沉积的最低温度。
- L-aspartic acid has been used as raw material and polyaspartic acid has been synthesized by 3 methods: pyrocondensation polymerization,liquid phase polymerization and modification polymerization. 以L-天冬氨酸为原料,采用热缩聚合、液相聚合和改性聚合三种方法合成了热缩聚天冬氨酸。
- Halogenide vapour phase deposition system 卤化物气相淀积系统
- A cloud is a condensation of water vapour. 云是由水蒸汽凝缩而成的。
- vapour phase matrix isolation fluorimetry 蒸气相基体隔离荧光法
- Metal Oxide Vapour Phase Epitaxy 金属氧化物蒸汽相外延
