均匀剂H40MSF在全钢载重子午线轮胎气密层中的应用

研究均匀剂H40MSF在全钢载重子午线轮胎气密层中的应用。结果表明:在气密层胶中以均匀剂H40MSF等量替代均匀剂A,胶料的门尼粘度、硫化特性和炭黑分散性基本一致,硫化胶的拉伸强度、撕裂强度和耐老化性能提高,气体渗透性能更优,成品轮胎的高速性能相当,生产成本降低。     

均匀剂H40MSF在半钢子午线轮胎气密层胶中的应用

研究均匀剂H40MSF在半钢子午线轮胎气密层胶中的应用.结果表明：以均匀剂H40MSF等量替代均匀剂40MSF用于气密层胶中,胶料的混炼能耗降低,生产效率提高;胶料的硫化特性、炭黑分散性以及硫化胶的物理性能相差不大;成品轮胎的耐久性能和高速性能提高.     

均匀剂RH-100在斜交轮胎气密层中的应用

研究均匀剂RH-100在斜交轮胎气密层中的应用。结果表明,在气密层胶中以均匀剂RH-100等量替代均匀剂40MSF,胶料的混炼能耗和粘弹性相差不大,炭黑分散性改善,胶料的硫化特性和硫化胶的物理性能变化不大,气密性能提高,完全可以满足生产工艺和使用性能要求。     

均匀剂H40MSF在全钢子午线轮胎胎面胶中的应用

研究均匀剂H40MSF在全钢子午线轮胎胎面胶中的应用,并与国内外同类产品进行对比。结果表明：加入均匀剂H40MSF,胶料的门尼粘度减小,t5延长,加工安全性提高,FL和Fmax减小;硫化胶的拉伸强度、拉断伸长率和撕裂强度增大,炭黑分散性改善,耐磨、耐疲劳和抗切割性能提高,压缩生热降低,损耗因子减小,滚动阻力降低;均匀剂H40MSF在胶料中耐迁移,不易变色,污染小,其综合性能优于国产均匀剂A,与进口均匀剂40MSF相近。     

均匀剂H40MSF在半钢子午线轮胎气密层胶中的应用

研究均匀剂H40MSF在半钢子午线轮胎气密层胶中的应用。结果表明：均匀剂H40MSF的环保性能符合欧盟2005/69/EC指令要求,能降低胶料的门尼粘度和混炼能耗,提高胶料的加工安全性能、耐屈挠性能和耐热老化性能,改善胶料的自粘性、炭黑分散性和气密性;胶料的定伸应力和拉伸强度减小,但能达到使用要求。     

均匀剂40MSF在降低气密层配方含胶率中的应用

均匀剂40MSF在降低气密层配方含胶率中的应用     

均匀剂ZXJ3010在半钢子午线轮胎气密层胶中的应用

研究均匀剂ZXJ3010在半钢子午线轮胎气密层胶中的应用。结果表明:在气密层胶中以均匀剂ZXJ3010等量替代均匀树脂A,胶料的焦烧时间延长,硫化速度加快;硫化胶的300%定伸应力和拉伸强度增大,炭黑分散性和气密性能提高;成品轮胎的高速和耐久性能达到国家标准要求,且生产成本降低。     

均匀剂TNB88在半钢子午线轮胎气密层胶中的应用

试验研究均匀剂 TNB88 在半钢子午线轮胎气密层胶中的应用效果.结果表明,与均匀剂 40MS 相比,均匀剂 TNB88 胶料的门尼焦烧时间稍长,硫化速度较快,硫化胶的硬度和定伸应力略高,撕裂强度和耐屈挠性能略低,气密性能相当,成品性能略优.     

应用均匀剂40MSF提高IIR硫化胶囊使用寿命

研究均匀剂40MSF在IIR硫化胶囊中的应用。结果表明，在IIR硫化胶囊中应用4份均匀剂40MSF替代2份操作油，混炼胶的门尼粘度下降，硫化胶的撕裂强度和拉断伸长率提高；实际生产中硫化胶模内流动性好，硫化胶囊外观质量改善，使用寿命提高约30％。     

一种轿车轮胎气密层胶

正由山东永泰化工有限公司申请的专利(公开号CN 103483628A,公开日期2014-01-01)"一种轿车轮胎气密层胶",涉及的轿车轮胎气密层胶配方组成为橡胶、炭黑N660、硬脂酸、轻质碳酸钙、扁平陶土、增粘树脂、均匀剂40MSF、氧化镁、氧化锌、防老剂4020、不溶性硫黄和促进剂。     

乙烯酮(双乙烯酮)下游产品废水的治理技术

乙烯酮(双乙烯酮)是十分重要的化工中间体,其下游产品较多。江苏某化工厂开发生产乙烯酮(双乙烯酮)下游产品三十多个,年生产规模三万多吨,是国内以乙烯酮(双乙烯酮)为中间体生产精细化学品的综合骨干企业。针对乙烯酮(双乙烯酮)下游产品废水特点,该厂结合企业实际,开展了产品优化,结构调整,清洁生产,资源循环利用,节水降耗等工作,从源头削减了污染物的生产。同时投资二千多万元新建预处理装置三套,6000m3/d废水生化处理装置一套,使全厂乙烯酮(双乙烯酮)下游产品的废水得到了有效的治理。     

我国聚碳酸酯工业发展概况

介绍我国聚碳酸酯生产能力和消费需求,对聚碳酸酯在信息工业中的应用作了简短介绍     

Effect of degree of deacetylation of chitosan on the kinetics of ultrasonic degradation of chitosan

The objective of the study was to explore the effect of the degree of deacetylation (DD) of the chitosan used on the degradation rate and rate constant during ultrasonic degradation. Chitin was extracted from red shrimp process waste. Four different DD chitosans were prepared from chitin by alkali deacetylation. Those chitosans were degraded by ultrasonic radiation to different molecular weights. Changes of the molecular weight were determined by light scattering, and data of molecular weight changes were used to calculate the degradation rate and rate constant. The results were as follows: The molecular weight of chitosans decreased with an increasing ultrasonication time. The curves of the molecular weight versus the ultrasonication time were broken at 1‐h treatment. The degradation rate and rate constant of sonolysis decreased with an increasing ultrasonication time. This may be because the chances of being attacked by the cavitation energy increased with an increasing molecular weight species and may be because smaller molecular weight species have shorter relaxation times and, thus, can alleviate the sonication stress easier. However, the degradation rate and rate constant of sonolysis increased with an increasing DD of the chitosan used. This may be because the flexibilitier molecules of higher DD chitosans are more susceptible to the shear force of elongation flow generated by the cavitation field or due to the bond energy difference of acetamido and β‐1,4‐glucoside linkage or hydrogen bonds. Breakage of the β‐1,4‐glucoside linkage will result in lower molecular weight and an increasing reaction rate and rate constant. © 2003 Wiley Periodicals, Inc. J Appl Polym Sci 90: 3526–3531, 2003     

Semi-empirical equation of state of metals. Equation of state of aluminum

A semi-empirical equation of state for metals is described. Its capabilities are demonstrated by the example of the equation of state for aluminum. New experimental data are presented on the location of the isentrope of aluminum for unloading from the state at p = 229.71 GPa on the shock adiabat to an aerogel (SiO₂) of density 0.08 g/cm³. __________ Translated from Fizika Goreniya i Vzryva, Vol. 44, No. 2, pp. 61–75, March–April, 2008.     

水泥水化热测定方法综述

水泥水化热是中、低热水泥和核电工程用水泥的一项关键的技术指标。全球范围内测定水泥水化热的方法有溶解法、直接法/半绝热法、等温传导量热法三种。本文总结了中、美、欧相关方法标准,对其测试原理、仪器设备、试验过程等方面进行了比对,并对其在领域的应用做了简单的概括。     

Calorimetric and Computational Study of Enthalpy of Formation of Diperoxide of Cyclohexanone

A thermochemical rather simple experimental technique is applied to determine the enthalpy of formation of Diperoxide of ciclohexanone. The study is complemented with suitable theoretical calculations at the semiempirical and ab initio levels. A particular satisfactory agreement between both ways is found for the ab initio calculation at the 6–311G basis This set level. Some possible extensions of the present procedure are pointed out.     

船舶柴油机涡轮增压器的清洗

采用喷射清洗剂的方法，清洗涡轮叶片积炭。     

杀虫磺缓释剂杀钉螺试验报告

杀虫磺缓释剂浸杀成螺、幼螺、螺卵效果好，现场应用缓释片６３克／米＾２，半年后活螺平均密度下降９３．２％，春季施药１次，可达到控制当年钉螺的扩散。     

气化给煤系统故障分析

气化给煤装置自投运以来,出现了气化煤仓堵煤、称重给煤机输送皮带因跑偏而损伤以及清扫装置故障频繁等问题,多次造成气化系统减负荷运行。通过对出现的各种问题进行分析,找到了产生这些问题的原因,并有针对性地采用配煤和改进清扫链等措施,使出现的问题得到了极大的改善。     

生物酶法合成氰氟草酯过程监测的RP-HPLC分析方法的研究

为实时监控化学-酶法制备氰氟草酯反应过程,建立了一种该体系中氰氟草酯的RP-HPLC的检测方法。采用SymmetryC18柱（5μm,4.6 mm i.d.×150 mm）,以V（甲醇）∶V（水）=80∶20为流动相,流速为1.0 mL/min,紫外检测波长为282 nm,柱温为30℃,进样量为20μL。氰氟草酯在5.0~1000.0 mg/L范围内线性良好,相关系数达到0.9999,检出限为1.0 mg/L,相对标准偏差为0.58%（n=5）,加标回收率在92.3%~101.5%之间。