尼龙酸生产增塑剂的研究

叙述了以尼龙酸为主要原料生产塑剂的工艺过程，特别对尼龙酸二异丁酯增塑剂的物理性能和性能进行了研究，表明以尼龙酸为主要原料生产的增塑剂与聚氯上容性好，特别合适作耐寒增塑剂作用。     

新型增塑剂MEP的合成

本文介绍了以国内廉价易得的尼龙酸、二甘醇和五九酸为原料,合成新型增塑剂MEP的工艺,初步评价了与PVC的配合情况。     

尼龙酸和杂醇油制备增塑剂的研究

以发酵酒厂的副产品杂醇油为原料，在酸性催剂作用下与生产己二酸的副产品尼龙酸成功地合成了尼龙酸混合醇酯。其设备和生产增塑剂DOP等大致相同，投资少，成本低，工艺简单。该产品是一种与PVC相容性良好，耐寒性优良，有广阔应用前景的增塑剂。     

尼龙酸二辛酯合成新工艺

以尼龙酸为原料生产尼龙酸二辛酯用作PVC增塑剂，具有良好的耐低温性，可作为己二醇二辛酯与癸二酸二辛酯的代用品，而且该品还具有防止表面静电积聚的效果。     

国内尼龙酸应用研究进展

概述了国内己二酸生产中的副产物尼龙酸的应用领域以及尼龙酸的应用研究进展。目前,尼龙酸下游产品的开发主要集中在高沸点溶剂和耐寒增塑剂。在高沸点溶剂的开发方面,根据合成溶剂中所用催化剂不同,对比了不同催化剂催化尼龙酸合成混合二元酸二甲酯的工艺过程;在耐寒增塑剂的开发方面,以尼龙酸与丁醇、异丁醇、辛醇等反应制备不同的产品,分析了合成工艺条件;其次,尼龙酸可作为聚氨酯原料或经分离提纯制备戊二酸和丁二酸等。今后应不断提升经尼龙酸为原料的产品质量稳定性和附加值,扩大尼龙酸的应用。     

国内有关塑料助剂合成与应用的文献题录

氯化石蜡-70的生产现状及发展趋势当代化工,2003 ,32(2) :109～110 ,114塑料助剂工业的现状与发展聚合物与助剂,2003(3) :1～6耐寒性增塑剂己二酸二正己酯合成工艺研究精细石油化工进展,2003 ,4(6) :49～51固体酸SO2-4 /Nb2O3 催化合成尼龙酸二异丁酯化学试剂,2003 ,25(3) :183～184尼龙酸和杂醇油制备增塑剂的研究河北化工,2003(3) :31～32 ,35柠檬酸三丁酯、乙酰柠檬酸三丁酯合成工艺的研究塑料工业,2003 ,31(7) :4～6 ,42硫酸铁铵催化合成癸二酸二丁酯精细石油化工进展,2003 ,4(7) :10～11增塑剂TOTM的清洁合成精细石油化工进展,2003…     

尼龙酸二辛酯合成新工艺

介绍了用从制取己二酸的副产母液中所获得的尼龙酸作为原料，合成新型耐寒增塑剂尼龙酸二辛酯的合成新工艺，其特点是对粗品采用减压蒸馏进行后段处理，从根本上克服了产品色泽差的问题。     

尼龙酸聚酯类增塑剂的合成与表征

以1,2-丙二醇(PDO)或二甘醇(DEG)为溶剂,将工业副产物尼龙酸(NA)及活性炭按一定比例混合,氮气保护下加热搅拌、溶解、经过一定时间后,趁热过滤得到近无色的尼龙酸二元醇溶液。再以所得溶液为主要原料,经酯化、缩聚等反应,合成了一系列环保型的尼龙酸聚酯增塑剂,利用核磁共振(1H-NMR、13C-NMR)和凝胶渗透色谱(GPC)等手段对所得增塑剂进行了表征。结果表明,利用该方法可方便、经济、高效地合成尼龙酸聚酯类增塑剂。     

耐寒增塑剂尼龙酸二正丁酯的合成新工艺

介绍了一种新型耐寒增塑剂尼龙酸二正丁酯的合成工艺,用价廉、易得的尼龙酸(由制己二酸母液中获得的C4～C6混合二元酸)及正丁醇为原料,浓硫酸为催化剂,经酯化、脱醇、中和、沉降及减压蒸馏等工序而制得产品。粗品平均收率96.5%,减压蒸馏平均收率95%以上。     

尼龙酸二丁酯的合成及其性能

以尼龙酸和丁醇为原料,浓硫酸为催化剂,环己烷为带水剂,合成出了3种尼龙酸二丁酯.以正丁醇和异丁醇为原料时反应速率最快,仲丁醇为原料时反应速率最慢.考察了反应的醇酸物质的量比对酯化反应的影响,n（醇）∶n（酸）=1.1∶1是最适宜的反应条件.测试了3种产品的性能,其中尼龙酸二正丁酯性能最佳,适合作为润滑油添加剂和耐寒型增塑剂.     

Plasticizer effects on vinyl extrusion efficiency

The choice of plasticizer for extrusion of flexible vinyl profiles is usually made for product performance properties. This paper deals with plasticizer influence on the entire extrusion process from dry-blend preparation to final extruded profile. Undestanding the effect of plasticizer throughout the extrusion line helps the compounder optimize for higher production rates, lower energy input, improved profile quality and better final physical properties. This study focused on the effect of low molecular weight, fast fusing plasticizers in the extrusion processing of general purpose formulations. Butyl benzyl phthalate was used as partial replacement for dialkyl phthalates. A positive influence of this replacement was observed in dry-blend preparation, in the compound extrusion step, in the finished extrusion step and in final product quality.     

AGS酸酯类增塑剂酸值闪点的测定及色泽改进初探

对混合二羧酸(AGS)酯类增塑剂的分离提纯、色泽改进进行了研究。考察了反应时间、反应温度、催化剂等反应条件对酯化反应的影响。并对增塑剂的酸值、闪点及其他主要性能指标进行了测定，改进了酯化反应工艺条件，讨论了样品色泽、酸值及闪点的影响因素。     

PVC增塑剂环氧大豆油生产新技术研究

文章以大豆油为原料,采用无溶剂法生产工艺,在大孔强酸性树脂催化剂作用下,制备出PVC环保型增塑剂环氧化大豆油。试验中对过氧化剂种类、反应催化剂及操作条件进行了系统考察;制备出的环氧化大豆油具有环氧值高,酸值和碘值低的特点,是性能优异PVC环保型增塑剂。采用先过氧化再环氧化的分步合成工艺,可使环氧化时间大大缩短,降低了副反应程度,提高了生产效率和产品质量。     

聚氯乙烯增塑剂现状与发展趋势

介绍了国内外聚氯乙烯增塑剂市场形势，分析了我国工业塑料与增塑剂的现状，发展与消费结构关系，论述了工业增塑剂行业的清洁生产工艺研究最新进展，特别是国内外采用固体超强酸，稀土固体酸，固载杂多酸及复合固体氧化物催化剂催化酯合成工业增塑剂的研究动态，指出高效，持效，无毒或低毒，无公害化的增塑剂产品，清洁化工业生产方式是全球塑料助剂的发展趋势。     

催化合成环保增塑剂的研究及其应用进展

综述了国内外催化合成新型增塑剂的新方法和催化反应工艺、催化剂的种类和制备,重点介绍了国内外主要新型环保增塑剂的性能、应用及研究现状,包括生物基植物油、聚酯、柠檬酸酯、偏苯三酸三酯及对苯二甲酸二辛酯类增塑剂的合成与性能,并与传统合成方法及催化剂比较,指出了我国催化合成增塑剂的趋势和增塑剂在国家高新技术领域中应用方向,提出我国增塑剂行业及新材料助剂领域的发展应着重于调整产品结构,加快非邻苯结构类、植物油基增塑剂的开发。     

增塑剂DOP生产工艺进展

简要介绍增塑剂邻苯二甲酸二辛酯的生产工艺进展；着重阐述具有设备少、物耗低、废水少、产品质量好等优点的非酸催化工艺。今后发展动向是简化工艺，减少设备和废水。     

Tributyl citrate oligomers as plasticizers for poly (lactic acid): thermo-mechanical film properties and aging

Poly (lactic acid), PLA, is a biodegradable thermoplastic that can be produced from renewable resources. The polymer is of interest for production of films for packaging applications. However, plasticization of PLA is required in order to obtain films with sufficient flexibility. PLA was blended with tributyl citrate (TbC) and two oligomers of TbC that were synthesized by transesterification of tributyl citrate (TbC) and diethylene glycol (DEG). Dynamic mechanical analysis (DMA) and differential scanning calorimetry (DSC) were used to investigate the dynamic mechanical and thermal properties of the blends. All the plasticizers investigated decreased the glass transition temperature of PLA, and the reduction was the largest with the plasticizer having the lowest molecular weight. The PLA matrix became saturated with plasticizer at a certain concentration and phase separation occurred; the higher the molecular weight of the plasticizer, the lower the saturation concentration. Aging of the blends at room temperature for several months induced partial phase separation in the material. It was observed that the morphological stability of the blends was enhanced when the plasticizer concentration was reasonably low, i.e. 10-15 wt%.     

Synthesis and characterization of polymeric plasticizer from PET waste and its applications in nitrile rubber and nitrile–PVC blend

Polyethylene terephthalate (PET) waste is not biodegradable; thus, it will create environmental hazards if disposed in landfills. Therefore, the only way of addressing the problem of disposal of post-industrial and post-consumer PET wastes is through recycling. The polyester plasticizer for polyacrylonitrile butadiene rubber (NBR) and polyacrylonitrile butadiene–polyvinylchloride rubber blend (NBR–PVC) was obtained by the depolymerization of PET waste with 2-ethyl-1-hexanol. The PET waste was depolymerized until a polymeric plasticizer with the average molecular weight in the range of 450–900 g/mol was obtained. The polymeric plasticizer was characterized for acid and hydroxyl numbers, viscosity, density, FTIR, NMR and TGA/DTA thermogram. The prepared polymeric plasticizer was used in the preparation of nitrile rubber and nitrile–PVC rubber blend rubber sheets, where these sheets were tested for compatibility, tensile strength, elongation-at-break, hardness and ageing properties. Nitrile rubber and nitrile–PVC blend sheets were also prepared using DOP as a plasticizer and a comparative study with the synthesized polymeric plasticizer was made. It was observed that synthesized polymeric plasticizer provides excellent tensile properties and ageing resistance for high-performance applications as compared to that obtained from DOP. The end uses for nitrile rubber and nitrile–PVC rubber blend compounds are quite diverse, but they can be loosely categorized as being either general performances or higher performance applications. Each of these performance categories requires a different set of considerations in terms of compounding with plasticizers.     

硅钨酸催化合成邻苯二甲酸二正辛酯

研究了以硅钨杂多酸(SiWl2)为催化剂合成增塑剂邻苯二甲酸二正辛酯(DnOP)的方法，探讨了合成的最佳工艺条件。结果表明，用杂多酸催化酯化合成DnOP，具有反应时间短、反应温度低、反应活性和选择性好、产率高、无环境污染、催化剂重复使用率高等特点，是理想的DnOP合成催化剂。     

聚合氯化铝的生产技术与研究进展

聚合氯化铝是目前国内外广泛使用的高效混凝剂，具有用量少、污泥少、除浊高、对出水pH影响小等优点。根据自己实际研究经验，对国内外聚合氯化铝制备技术的进展研究进行了评述，并提出了聚合氯化铝生产工艺和性能的改进方法。结果表明，聚合氯化铝的制备方法很多，但只有酸法和碱法实现了工业化生产；尽管酸法普遍存在原料利用率低、酸雾大等缺点，但工艺简单，投资少，仍然是将来一种主要的生产方法；目前中国聚合氯化铝溶液的生产方法基本上都属于酸法，最主要的是提高聚氯化铝品质，降低重金属含量，降低成本。