亚洲市场DINP和DOP市场竞争日益激烈

DOP是应用最广泛的邻苯二甲酸酯类产品，在亚洲市场尤为如此，目前DOP全球产能为2700万吨／年。但是，由于邻苯二甲酸二异壬酯（DINP）在某些应用领域的性能超过了DOP，预计未来几年内，全球DOP市场将面临DINP的挑战。在市场上，DOP一直占有价格优势，而近一段时间DOP的低价优势有所削弱，DINP生产商以有竞争力的价格在西欧市场出售DINP。     

我国邻苯二甲酸二辛酯的生产及市场分析

介绍了我国邻苯二甲酸二辛酯(DOP)的生产技术,分析了DOP的生产消费现状及发展前景,指出了今后的发展前景。     

八大类无毒或低毒增塑剂介绍

我国作为主流增塑剂的邻苯二甲酸二辛酯（DOP）在欧盟、美国、日本和韩国被禁止使用后，国内生产对上述国家出口产品的企业纷纷寻找DOP代用品。这个问题越来越严重，有的老板反映，它的产品如果被美国查出含有DOP成分是会被退货处理的。     

10万t/a DOP生产装置国产化工艺设计

简述了DOP产品生产的国内外现状和国内增长需求。详细论述了国内首套10万t／aDOP生产装置工艺设计的工艺参数选择及主要设备设计选型，总结了金陵石化化工一厂应用该工艺设计建成10万t／aDOP生产装置并投产成功的各项工艺技术经济指标，对我国自行设计建设大型DOP生产装置具有重大的推广意义。     

海外

据报道,由于韩国艾敬化工公司罢工事件,邻苯二甲酸二辛酯(DOP),聚丙烯酸酯(PA)等可塑剂价格反弹,行情看涨。 韩国艾敬化工公司主要生产DOP、PA、年产能力分别为18万吨和11万吨,其中PA去年底再扩充5万吨,是主要可塑剂生产厂商。 因罢工导致DOP和PA减产50％至60％;PA外销也减少了60％,DOP减少了60％至80％。受此     

有机原料及中间体

伊朗新建苯酐和DOP项目 伊朗的Esfahan石化公司计划新建苯酐和邻苯二甲酸二辛酯(DOP)项目,以提高其现有邻二甲苯生产能力的价值。新建项目的苯酐生产能力为2.1万t/a,DOP生产能力为4万t/a。生产DOP用的2-乙基已醇系从Arab石化公司购进。这一项目于明年初动工,预定两年后竣工生产。产品苯酐和DOP主要供本地使用。关于新建项目的使用技术问题,正在与一些技术供应厂商谈判中。     

从炭泥中回收邻苯二甲酸二辛酯及氧化亚锡工艺研究

本课题以邻苯二甲酸二辛酯(DOP)生产工艺中副产炭泥为研究对象，采用溶剂萃取法从炭泥中回收DOP；再用化学方法回收催化剂氧化亚锡。通过实验确定了DOP及催化剂氧化亚锡的回收工艺，且DOP的回收率达到90％以上，氧化亚锡回收率达到70％。     

催化剂及助剂

中国台湾联成DOP/苯酐装置扩能中国台湾DOP主要生产厂商为南亚及联成化科,南亚DOP产能为30万t/a ,联成在两岸的DOP产能为34万t/a ,不过联成在珠海投资兴建的产能为10万t/a的DOP厂,第一期5万t/a现已完工,第二期5万t/a约在2 0 0 4年6～7月间完工;联成另外在镇江投资特殊规格的DOP     

应用非酸催化剂TAC-B合成苯多羧酸

用笔者研制的改性钛酸酯催化剂TAV—B,合成了苯多羧酸(DOP)型增塑剂,并确定了生产DOP的最佳工艺条件。过滤极容易;产品质量好,酸值低;不用氮气作保护。     

DOP增塑剂出现世界范围短缺

在世界DOP增塑剂行业中,认为国际供需紧张的见解越来越多了。这是因为以美国、加拿大、欧洲为中心DOP生产设备出现相继停产的情况,以及南朝鲜、台湾等内部需求增加出口能力减少所致。日本各原料生产厂家的大修也集中在这一时期中,出厂情况不正常。DOP各厂家预测,国际供需正在紧缩中,明显出现原料不足,DOP的行情在国际范围转为上升。     

Dynamic rheological behavior and microcrystalline structure of dioctyl phthalate plasticized poly(vinyl chloride)

The dynamic rheological behavior of poly(vinyl chloride) (PVC)/dioctyl phthalate (DOP) systems were studied as a function of DOP content and melting temperature. The dynamic rheological behavior of the PVC/DOP systems was found to be remarkably affected by the DOP content. The observed curves of storage modulus (G′) versus frequency were well fitted to an empirical equation (G′ = G′₀ + Kωⁿ, where G′₀ is the low‐frequency yield value of the storage modulus, the exponent n is a dependent index of frequency, K is a constant coefficient, and ω is the angular frequency). The loss tangent and/or phase angle increased remarkably at a higher DOP content. There was an apparent critical DOP content transition where the dynamic rheological behavior of the PVC/DOP systems changed greatly. Scanning electron microscopy observations revealed the existence of a multiscale particle structure in the PVC/DOP systems. For the PVC/DOP (100/70) system, with increasing melting temperature, its dynamic rheological behavior showed an apparent mutation at about 190°C. Differential scanning calorimetry (DSC) analysis confirmed that the high elastic networks in the PVC/DOP systems were closely related to the microcrystalline structure of PVC. The transitions in the curves of the gelation degree and crystallinity versus the DOP content corresponded well to the DOP content transition in the dynamic rheological behavior. DOP could inhibit the secondary crystallite of PVC and almost had no effect on the primary crystallite of PVC. The coexistence of the microcrystalline structure of PVC and the plasticizer (DOP) resulted in high elastic networks in the PVC/DOP systems. The DSC results explained the DOP content transition and the temperature transition in the dynamic rheological behavior of the PVC/DOP systems well. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2011     

高分子量增塑剂PPA抑制软质PVC中DOP迁移的研究

将高分子量增塑剂聚己二酸丙二醇(酯PPA)与邻苯二甲酸二辛(酯DOP)共混以抑制软质聚氯乙(烯PVC)中DOP的迁移,探讨了PPA和DOP用量对DOP的溶剂抽出率和挥发损失率以及软质PVC制品力学性能的影响。结果表明:PPA能有效抑制软质PVC样品中DOP的溶剂抽出率和挥发损失率,PPA含量越高,抑制效果越明显;当PPA/DOP=10/30时软,质PVC样品的力学性能得到了较好的保持。     

DOP与DBP对PVC糊树脂性能影响的比较

为指导利用PVC糊树脂制备不同制品时设计合理的配方,探讨了DOP与DBP两种常配合使用的增塑剂对PVC糊树脂性能的影响。实验结果表明,随着DOP、DBP用量的增加,制品的拉伸强度下降,断裂伸长率提高,当DOP／DBP配合体系配比为1：1时,制品的拉伸强度和断裂伸长率比较理想。DOP对硬度的影响大于DBP,DBP对撕裂强度的影响大于DOP,当DOP／DBP配合体系中DOP含量增加时,制品的硬度和撕裂强度提高。     

Influences of contents and molecular weights of LDPE on DOP plasticization of PVC

Influences of contents and molecular weights of low‐density polyethylene (LDPE) on dioctyl phthalate (DOP) plasticization in the poly(vinyl chloride) (PVC) plastisol (PVC/DOP/AO = 100/30/6.5) were investigated using DMA and DSC. The plasticization effects of DOP on the PVC plastisol were found to decrease with increasing LDPE content. A negligible plasticization effect of DOP on the PVC plastisol was found when the LDPE content was equal to or higher than 75 parts per 100 parts by weight of LDPE and PVC together. Based on thermal fractionation experiments, a favorable interaction between LDPE and DOP was developed during melt blending of LDPE and the PVC plastisol. The present interaction enabled the incorporation of DOP into LDPE and decreased the plasticization effects of DOP on the PVC plastisol. A further decrease in the plasticization effects of DOP on the PVC plastisol by the presence of LDPE was found with increasing LDPE molecular weights. © 2002 Wiley Periodicals, Inc. J Appl Polym Sci 83: 2548–2555, 2002     

Effects of poly(1,2‐propylene glycol adipate) and nano‐CaCO3 on DOP migration and mechanical properties of flexible PVC

Nano‐CaCO₃ was used as nano‐scale filler and poly(1,2‐propylene glycol adipate) (PPA) was used as polymeric plasticizer in flexible poly(vinyl chloride) (PVC) sheets for the partial replacement of di(2‐ethyl hexyl) phthalate (DOP) in this paper. The effect of PPA and nano‐CaCO₃ on restraining DOP migration was evaluated via extraction tests. The results showed that the introduction of nano‐CaCO₃ can decrease the extraction rate of DOP in the PVC matrix. The tensile strength and elongation at break of CaCO₃‐1/PPA‐20/DOP‐30/PVC were similar to those of DOP‐50/PVC, and CaCO₃‐1/PPA‐20/DOP‐30/PVC exhibited the superior suppression of DOP migration compared with DOP‐50/PVC. Thermogravimetry analysis (TGA) indicated that the addition of nano‐CaCO₃ effectively improved the thermal stability of the nanocomposites. Therefore, the combination of PPA and nano‐CaCO₃ is an effective approach to suppress the migration of DOP. © 2011 Wiley Periodicals, Inc. J Appl Polym Sci, 2012     

2005年我国邻苯二甲酸二辛酯产品预测

依据我国近几年来邻苯二甲酸二辛酯产品的表观消耗和其主要下游产品表现消耗,邻苯二甲酸二辛酯情况的两个方面走势,并综合了因参杂在软塑料儿童玩具的中的邻苯二甲酸二辛酯对人体造成危害产生的影响因素,对２００５年我国邻苯二甲酸二辛酯产品需求进行了预测。     

聚1,2-丙二醇新戊二醇己二酸酯增塑性能的研究

将合成的聚1,2-丙二醇新戊二醇己二酸酯(简称PG-AA-NPG)聚酯增塑剂增塑PVC的试片制成复合材料,并进行耐迁移、DSC、力学性能、热稳定性能测试,分析PG-AA-NPG的综合性能,并且与加入DOP和市售聚酯增塑剂A的PVC试片进行对比。结果表明PG-AA-NPG的耐溶剂迁移性优于DOP;PVC/PG-AA-NPG玻璃化温度十分接近PVC/DOP;PG-AA-NPG的拉伸强度高于DOP;PG-AA-NPG提高PVC热稳定性的能力优于DOP类增塑剂。因此PG-AA-NPG可以为制备综合性能好的PVC材料打下良好基础。     

PVDF/DBP/DOP/TiO_2体系流变性能研究

以聚偏氟乙烯(PVDF)为原料,邻苯二甲酸二丁酯(DBP)/邻苯二甲酸二辛酯(DOP)为复合稀释剂,纳米TiO2为添加剂,采用转矩流变仪,研究了PVDF/DBP/DOP/TiO2共混体系的流变性能。结果表明:PVDF/DBP/DOP/TiO2共混体系的表观黏度随剪切速率的升高而降低,属于切力变稀流体;随着温度的提高,其非牛顿性变弱,结构化程度降低;其中纳米TiO2可起填充作用,使共混物黏度提高,流动性变差;DBP/DOP主要起软化增塑PVDF的作用,减弱共混物内高分子链间的相互牵制,使共混体系黏度下降,非牛顿性减弱,流动性增强。     

P83/DOP对PVC/CPE共混物性能的影响

制备了聚氯乙烯/氯化聚乙烯(PVC/CPE)共混物,研究了改性剂CHEMIGUMP83(简称P83)和增塑剂邻苯二甲酸二辛酯(DOP)对共混物硬度、拉伸性能和耐磨性能的影响。结果表明:适量的P83和DOP并用,可以降低共混物的硬度,改善共混物的拉伸性能;P83可以有效减缓DOP的加入导致的共混物耐磨性能下降的趋势;当DOP用量在25～30phr、P83用量在10～15phr时,PVC/CPE共混物具有较好的物理力学性能。     

增塑剂DOP对NBR/PP共混物性能的影响

研究增塑剂DOP对NBR／PP共混物物理性能、结晶性能及流变特性的影响。结果表明，随着增塑剂DOP用量增大，NBR／PP共混物的硬度明显降低，流动性能显著提高；增塑剂DOP用量对共混物的结晶性能影响不大；加入增塑剂DOP，共混物老化后的100％定伸应力和拉伸强度提高，拉断伸长率和流动性能下降。