乙丙橡胶生产及市场情况分析

综述了国内外乙丙橡胶的生产及市场情况,对市场发展趋势进行了分析及预测,并对国内乙丙橡胶行业发展提出了几点建议。     

乙丙橡胶生产及市场分析

综述了国内外乙丙橡胶的生产及市场情况,对市场发展趋势进行了分析及预测,并对国内乙丙橡胶行业发展提出了几点建议。     

国外乙丙橡胶产品大量涌入我国

我国汽车等行业迅猛发展带动了乙丙橡胶市场。我国乙丙橡胶年需求量为15万t，而国内乙丙橡胶年产能力仅2万t左右，且只有5～6个牌号的产品，主打产品是二元乙丙橡胶和4045牌号三元乙丙橡胶。巨大的供应缺口使国外乙丙橡胶产品纷纷涌人国内，牢牢占据了大部分市场份额。     

2020年乙丙橡胶市场分析及技术进展

综述了国内外乙丙橡胶的生产及市场情况、对发展趋势进行了分析预测,介绍了与产品相关的一些新型催化剂、新产品和复合新材料的研发情况,对国内乙丙橡胶行业发展提出了几点建议.     

国外产品大量涌入我国乙丙橡胶市场

<正>随着我国汽车等行业迅猛发展,带动了乙丙橡胶市场的火爆,我国乙丙橡胶市场年需求量在15万t左右,而国内年生产能力仅为2万t左右,且只有5～6个牌号的产品,主打产品是二元乙丙橡胶和三元乙丙橡胶的4045牌号。巨大的市场缺口,使世界乙丙橡胶生产厂家纷纷涌入国内,牢     

国内乙丙橡胶市场综述

简要介绍了乙丙橡胶的性能特点和应用特点，介绍了乙丙橡胶主要应用领域及在各个领域所应用的主要牌号，并时全球乙丙橡胶的产能与供需现状和国内乙丙橡胶区域分布情况及其发展趋势作了较详细的介绍。     

吉林石化C线乙丙橡胶装置开工建设

据中国橡胶信息网消息，吉林石化公司年产4万吨乙丙橡胶装置（C线）已于日前开工建设。据了解，吉林石化公司已有A、B两条乙丙橡胶生产线，生产能力已达4．5万吨，但随着国内需求的日益增加，吉林石化公司瞄准国内市场，再扩产能，在充分消化吸收国外先进技术的基础上，结合已有乙丙橡胶装置多年生产经验，     

国产乙丙橡胶亮相就走俏

吉化有机合成厂生产的乙丙橡胶敢与洋货见高低,仅一年时间就使其市场占有率拓宽到２０％。我国橡胶行业在近年来,把乙丙橡胶广为应用于轮胎、密封件、电线电缆、防水材料等产品中。国内乙丙橡胶市场一直被荷兰、日本、美国所垄断。１９９７年７月,国家重点工程吉化３０万吨乙烯工程的主体产品——年产２万吨的乙丙橡胶装置建成投产,不仅填补了国内乙丙橡胶生产空白,并打破了洋货一统国内乙丙橡胶市场天下。该厂为拓宽国产乙丙橡胶市场,对全国１４００多家乙丙橡胶用户进行了调查,与用户一起分领域成立攻关小组,无偿为用户开发所需的…     

国内外乙丙橡胶现状分析

对乙丙橡胶供需情况、乙丙橡胶生产工艺及催化体系研究进行了综合分析。目前,国内对乙丙橡胶需求量逐年增长,但其生产能力和产量远不能满足国内需求,每年不得不大量依赖进口,对外依存度高达约93.0%。我国乙丙橡胶发展缓慢的一个主要原因是催化剂发展落后,从生产工艺到催化剂全部依靠进口,因此开发具有自主知识产权的新型乙丙橡胶催化剂意义重大。     

国内外乙丙橡胶市场分析及预测

与其他合成橡胶相比,乙丙橡胶需求增长较快。近年来全球对乙丙橡胶的需求量年均增长率保持在4％～5％,但各地区市场发展不平衡,美国等发达国家和地区乙丙橡胶供大于求,过剩10％～15％,而以中国为首的亚太地区市场需求量则连年保持2位数增长,成为全球乙丙橡胶装置和市场开拓的焦点。预计到2009年年底我国乙丙橡胶年生产能力至少达到4．5万t,2010年后有望达到7万～12万t,如果达到12万t,国内乙丙橡胶市场供需矛盾将得到极大缓解,进口量将显著减小,如果只达到7万t,则有近50％的市场缺口需要依赖进口解决。     

国内动态硫化技术产业化的探讨

根据国外动态硫化技术的发地趋势，结合国内科研情况．对ＴＰＶ推广应用的可能性进行了分析，并对今后的发展提出了建议。国内ＴＰＶ的主要应用市场是轿车及电线电缆行业。顶计２０００年，轿车行业对ＴＰＥ的需求量达３２５０ｔ／ａ。国内ＥＰＤＭ／ＰＰＴＰＶ工厂成本不超过１．７万元／ｔ．售价将远低于Ｓａｎｔｏｐｒｅｎｅ。     

Recycling of EPDM waste. II. Replacement of virgin rubber by ground EPDM vulcanizate in EPDM/PP thermoplastic elastomeric composition

Virgin ethylene propylene diene monomer (EPDM) rubber in a thermoplastic elastomeric blend of polypropylene (PP) and EPDM rubber was substituted by ground EPDM vulcanizate of known composition, after which the mechanical properties of the raw EPDM/waste EPDM/PP blends were determined. The ratio of the rubber content in the waste EPDM (r‐W‐EPDM) to the raw EPDM (R‐EPDM) in the blends was varied from 0 : 100 to 45 : 55. Attempts to replace higher amounts (>45%) of R‐EPDM by W‐EPDM failed because of processing difficulty. Although a drop in mechanical properties of the blends was observed at lower loadings of W‐EPDM, the properties showed improvement at intermediate W‐EPDM loadings. The R‐EPDM/W–EPDM/PP blends were found to be reprocessable. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 82: 3304–3312, 2001     

Preparation and properties of high‐performance recyclable ethylene propylene diene rubber

To obtain high‐performance recyclable ethylene propylene diene rubber (EPDM), EPDM was chemically functionalized as follows: EPDM was grafted with citraconic acid (CCA) by radical melt polymerization to produce a grafted EPDM (EPDM‐g‐CCA), and EPDM‐g‐CCA was reacted with various amino acids by melt condensation reaction to give amidated copolymers (EPDM‐g‐CCA‐2‐Am, EPDM‐g‐CCA‐7‐Am, and EPDM‐g‐CCA‐12‐Am, where the n indicates the carbon number of amino acid), and then ionomers (EPDM‐g‐CCA/n‐Am/Io) were prepared by melt reaction of EPDM‐g‐CCA/n‐Ams with Zinc oxide (ZnO)/zinc stearate (ZnSt). The mechanical properties/compression set (CS) resistance (elasticity)/recyclability of pristine EPDM, EPDM‐g‐CCA, EPDM‐g‐CCA/n‐Am, and ionomers sheet samples were compared. The tensile strength/modulus, tear strength, and elasticity of samples were mostly increased in the order of ionomers>EPDM‐g‐CCA/n‐Ams>EPDM‐g‐CCA>pristine EPDM. The properties of ionomers increased significantly with increasing the carbon number in amino acid up to seven, and then levelled off or decreased a little. The tensile strength/elasticity (compression set resistance) of recyclable ionomer (EPDM‐g‐CCA/7‐Am/Io) was found to be ～9.42/～2.31 times of pristine EPDM, respectively. © 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015 , 132, 42718.     

不同牌号三元乙丙橡胶的结构与性能对比

对8个牌号三元乙丙橡胶(EPDM)的微观结构、硫化特性、物理机械性能、耐磨性能及耐老化性能进行了对比.结果表明,EPDM中第3单体亚乙烯基降冰片烯(ENB)质量分数影响了EPDM的硫化速率.8个牌号中EPDM 9950 C的硫化速率最快,EPDM 3722的硫化速率最慢;充油胶EPDM 3666的硫化速率与结构类似的E...     

活性预处理三元乙丙橡胶/天然橡胶并用胶的性能

采用硫载体硫化剂4,4′-二硫化二吗啉(DTDM)对三元乙丙橡胶(EPDM)进行活性预处理,研究了活性预处理EPDM/天然橡胶(NR)并用胶的性能,并探讨了活性预处理EPDM对并用胶力学性能影响的机理。结果表明,预处理EPDM/NR并用胶的共硫化程度得到改善,并用硫化胶的力学性能提高;并用硫化胶的耐老化性能优于NR硫化胶,但比未处理EPDM/NR并用硫化胶差;并用胶只存在1个玻璃化温度的转变区,两相的相容性得到改善;在高温动态条件下,EPDM与DTDM发生活性反应,但未生成大量凝胶。     

Studies on ethylene‐propylene‐diene rubber modification by N‐chlorothio‐N‐butyl‐benzenesulfonamide

N‐Chlorothiosulfonamides have been used to modify ethylene‐propylene‐diene rubber (EPDM) to enhance the compatibility of EPDM in, e.g., natural rubber (NR)/butadiene rubber (BR)/EPDM blends for ozone resistance. N‐Chlorothio‐N‐butyl‐benzenesulfonamide (CTBBS) was selected as a representative for N‐chlorothiosulfonamides. In this study, we found that CTBBS behaves differently with various types of EPDM. Three types of EPDM were selected: ethylidene norbornene (ENB)‐EPDM, hexadiene (HD)‐EPDM, and dicyclopentadiene (DCPD)‐EPDM. HD‐EPDM showed the greatest effectiveness toward CTBBS‐modification. However, this EPDM is not commercially available anymore. On the opposite side, DCPD‐EPDM showed the lowest reactivity so that almost no modification could be realized. The result with ENB‐EPDM was, that upon application of CTBBS to ENB‐EPDM, gelation occurred and, therefore, a low amount of modification was achieved. With the limited modification efficiency for ENB‐EPDM, there is no significant improvement when applying the modified ENB‐EPDM into NR/BR/EPDM blends. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2009     

Recycling of ethylene propylene diene monomer (EPDM) waste. III. Processability of EPDM rubber compound containing ground EPDM vulcanizates

The rheological behavior of ethylene propylene diene monomer (EPDM) compounds containing ground EPDM waste (W‐EPDM) of known composition was studied by using a Monsanto processability tester in a temperature range of 90–110°C and a shear rate range of 306.7–1533.24 s^?1. It is found that the shear viscosity decreases slightly with increasing W‐EPDM loading because of wall slip that results from the migration of lubricants from the W‐EPDM. The addition of W‐EPDM to raw EPDM results in a decreased die swell at all temperatures and shear rates. SEM photomicrographs of the EPDM extrudate surface show improved surface smoothness and reduced extrudate distortion when EPDM is blended with W‐EPDM. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 87: 2204–2215, 2003     

原位有机改性法制备EPDM/蒙脱土纳米复合材料的热分解行为及填料-橡胶相互作用

研究了原住有机改性法制备的EPDM／Na—MMT纳米复合材料的热分解行为及填料-橡胶相互作用。实验结果表明，当Na—MMT和插层剂1827同时加入EPDM中时，对提高EPDM的热分解温度具有协同效应。随着插层剂1827与Na—MMT用量比的增加，EPDM硫化胶的热分解温度逐渐提高。经过原位有机改性后，EPDM与Na—MMT之间的相互作用明显增强。     

EPDM并用胶的开发及应用

综述了乙丙橡胶（ＥＰＤＭ）与其它橡胶并用材料的研究开发情况，分析了不同并用胶体系和ＥＰＤＭ／ＮＢＲ、ＥＰＤＭ／ＮＲ、ＥＰＤＭ／ＩＩＲ等的性能、技术关键、存在的问题及应用领域。并针对国内ＥＰＤＭ的现状．提出了研究开发的建议。     

三元乙丙橡胶胶粘剂的研制

介绍了一种EPDM混炼胶与CSM混炼胶共混改性后配制成的一液型胶粘剂,在EPDM-钢、EPDM-NBR、EPDM生胶-EPDM熟胶、EPDM-复合材料等界面粘结中应用,取得了良好的效果,界面粘结强度可以达到3MPa以上,界面贮存性能、工艺性能良好。在大型压力容器内衬材料成型工程中已得到成功应用。