油酸酰胺聚氧乙烯醚磺基琥珀酸单酯二钠盐的合成及性能研究

以油酸酰胺聚氧乙烯醚(7EO)和顺丁烯二酸酐为原料、亚硫酸钠为磺化剂合成了标题化合物。最佳合成工艺条件:n(7EO)∶n(顺酐)=1∶1. 05,酯化温度130℃,时间为2 h,n(顺酐)∶n(亚硫酸钠)=1∶1. 05,磺化温度80℃,时间3 h,整个反应在氮气保护下进行。通过红外光谱、核磁共振氢谱确定了标题化合物的结构,并考察了标题化合物性能。标题化合物的临界表面张力为33. 09 m N/m,标题化合物溶液的消泡速率为0. 02 cm/min,乳化时间为15 min,渗透性为14 s,钙皂分散性为20%,去污力为66. 22%,增溶性为50 L/mol。研究表明标题化合物具有良好的表面活性、润湿渗透性和泡沫稳定性。     

包覆HNIW用WPU/SBB复合乳液的合成与表征

以异佛尔酮二异氰酸酯(IPDI)、聚氧化丙烯二醇(PPG)、苯乙烯(St)、甲基丙烯酸丁酯(BMA)和丙烯酸丁酯(BA)等为主要原料,采用种子乳液聚合法合成了WPU/SBB(水性聚氨酯/苯丙)复合乳液;然后以此为高能炸药——HNIW(六硝基六氮杂异伍兹烷)颗粒的包覆剂和胶粘剂。采用红外光谱(FT-IR)法、X-射线衍射(XRD)法及差示扫描量热分析(DSC)法等手段对WPU/SBB复合乳液的结构进行了表征,并采用扫描电镜(SEM)、特性落高值(H50)和X-射线光电子能谱(XPS)法等分析了WPU/SBB复合乳液对HNIW的包覆效果。结果表明:包覆后HNIW的H50由13.6 cm升至34.8 cm,说明该环保型WPU/SBB复合乳液对HNIW具有明显的降感作用。     

解剖锁定钢板内固定治疗浮膝损伤的临床治疗体会

目的 探讨解剖锁定钢板内固定治疗浮膝损伤的临床治疗效果。方法 分析我院收治的浮膝损伤患者临床资料,通过解剖锁定钢板内固定治疗。结果 术后1年随访临床疗效情况:优40例(50%)、良25例(31.3%)、可15例(18.7%),总的优良率为81.3%。结论 解剖锁定钢板内固定治疗浮膝损伤的临床治疗效果明显,预后较好,值得临床推广应用。     

潍坊亚星3种新产品填补国内空白我国氯化聚乙烯技术与应用再获突破

2011年8月25日,由潍坊亚星化学股份有限公司研发的“汽车胶管用耐热、耐油氯化聚乙烯橡胶”、“低黏度、高流动性氯化聚乙烯橡胶”和“高刚性氯化聚乙烯”等3种新产品在济南通过专家鉴定。     

潍坊亚星CPE应用又获新突破今年再成功申报六项发明专利

去年以来,为进一步做强做大CPE主业,亚星国家级含氯聚合物材料研究中心与生产部门的研究人员,密切配合,大胆创新,先后开发了《无毒耐候热塑     

Multi-objective optimization of rolling schedule based on cost function for tandem cold mill

In terms of tandem cold mill productivity and product quality, a multi-objective optimization model of rolling schedule based on cost fimction was proposed to determine the stand reductions, inter-stand tensions and rolling speeds for a specified product. The proposed schedule optimization model consists of several single cost fi.mctions, which take rolling force, motor power, inter-stand tension and stand reduction into consideration. The cost function, which can evaluate how far the rolling parameters are from the ideal values, was minimized using the Nelder-Mead simplex method. The proposed rolling schedule optimization method has been applied successfully to the 5-stand tandem cold mill in Tangsteel, and the results from a case study show that the proposed method is superior to those based on empirical formulae.     

Algorithm design and application of novel GM-AGC based on mill stretch characteristic curve简

As the spring equation is limited to the accuracy of mill stiffness and the linearity of the mill spring curve, the traditional gaugemeter automatic gauge control （GM-AGC） system based on spring equation cannot meet the requirements of practical production. In allusion to this problem, a kind of novel GM-AGC system based on mill stretch characteristic curve was proposed. The error existing in calculating strip thickness by spring equation were analyzed first. And then the mill stretch characteristic curve which could effectively eliminate the influence of mill stiffness was described. The novel GM-AGC system has been applied successfully in a hot strip mill, the application results show that the thickness control precision is improved significantly, with the novel GM-AGC system, over 98.6% of the strip thickness deviation of 3.0 mm class can be controlled within the target tolerances of ±20 μm.     

电化学钝化对无间隙原子钢耐蚀性的影响

以无间隙原子钢作为研究对象,采用电化学实验、交变湿热试验以及恒温恒湿试验等方法,研究了电化学钝化处理对无间隙原子钢耐蚀性能的影响。研究结果表明:随着电化学钝化的时间、温度、电流密度的提高,无间隙原子钢的耐蚀性得到提高。电化学钝化后进行磷化处理结果表明,电化学钝化处理对试样的磷化处理没有影响。     

潍坊亚星氯化聚乙烯技术创新再获新成果

由潍坊亚星集团有限公司研发并申报的《无毒耐候热塑性弹性体材料》和《耐酸、抗老化橡胶材料组合物及其制备方法》两项创新成果,顺利通过国家知识产权局对其新颖性、创造性和实用性的实质审查,正式获得期限为20年的发明专利权。