煤矿用阻燃抗静电PVC-U管材的研发与应用

对煤矿用阻燃抗静电PVC-U管材的基础材料进行了分析,设计了生产工艺,通过实验确定了最佳的参数.当前煤矿用阻燃抗静电PVC-U管材已生产了多种产品,工业性实验效果理想.     

煤矿中阻燃抗静电管道的重要性及阻燃抗静电PVC管材的应用

论述了我国煤矿中将阻燃抗静电管材用于抽放瓦斯、供水、排水的重要性,介绍了PVC管材在煤矿中使用的优点、应用情况及发展趋势。     

煤矿用PVC抗静电塑料管材的研究

讨论了煤矿用PVC抗静电塑料管材的抗静电原理、配方及工艺过程,分析了主要组分对抗静电性能和力学性能的影响.实验证明,通过添加导电材料和共混改性,能够生产出理想的煤矿用管材.     

阻燃抗静电聚乙烯管材的研制

论述阻燃抗静电聚乙烯管材（双抗管）代替金属管材在煤矿井下的应用，以及对生产工艺的要求，并对其阻燃和抗静电原理进行分析研究。     

阻燃、抗静电硬质PVC涂敷管的研制

分析了阻燃、抗静电硬质PVC管材(简称PVC双抗管材)加入导电炭黑后变脆的原因,论述了涂敷阻燃、抗静电涂料生产PVC涂敷双抗管材的可行性,介绍了阻燃、抗静电涂料的制备及PVC涂敷双抗管材的物理性能.     

煤矿井下用塑料电缆挂钩的研制

介绍了煤矿井下塑料电缆挂钩的研制，通过技术措施，研制出具有抗静电阻燃及高强度的全塑料电缆挂钩     

新型煤矿用PVC抗静电管材的研制

探讨塑料表面静电荷的产生机理和解决办法,并从原材料的选用、管材成型工艺及配方等几个方面论述煤矿用聚氯乙烯抗静电管材的生产技术。所制备的聚氯乙烯抗静电管材表面电阻率为6.4×10~5Ω,拉伸强度为35.3MPa,冲击强度为8.7 kJ/m~2,硬度为90,满足煤矿用管材的要求。     

阻燃抗静电塑料

由成都科技大学塑料工程系研制的复合型阻燃、抗静电塑料,系国家“七五”科技攻关项目,已通过国家鉴定和验收,获国家“七五”科技攻关重大成果奖。该成果系以PVC、PP、PE、ABS等常用树脂为基材,加入导电炭黑,阻燃剂、改性剂、抗静电剂和其它助剂,经适当混合和分散工艺,制成抗静电或阻燃、抗静电塑料,可采用挤出、注塑、压制、压延、吹塑等传统成型加工方法成型,主要产品有软、硬管材、异型材、各种     

矿用阻燃抗静电塑料性能的研究

分别以聚丙烯(PP)树脂和ABS树脂作为基体材料,加入阻燃剂(溴-锑阻燃体系)、抗静电剂(导电炭黑)和偶联剂(KH-550)制备了矿用阻燃抗静电塑料。通过改变阻燃剂和抗静电剂的配比,考察了阻燃剂和抗静电剂对矿用阻燃抗静电塑料性能的影响,以及阻燃剂和抗静电剂彼此之间的影响。结果表明:溴-锑阻燃体系的加入能提高PP的抗静电性能;导电炭黑的加入会降低PP的阻燃性能;在添加一定量的KH550后,矿用阻燃抗静电塑料在阻燃抗静电性能符合要求情况下,力学性能有了明显提升,保证了制品更能适宜在井下恶劣环境中使用。     

抗静电阻燃防腐蚀硬PVC管材通过鉴定

由江苏省煤矿研究所和鹤壁晨光塑料制品厂联合研制的矿用抗静电阻燃防腐蚀硬聚氯乙烯管材,最近在南京通过了江苏省煤炭工业厅组织的技术鉴定。 该管材以聚氯乙烯树脂为基料,添加改性剂、乙炔、炭黑等辅助材料,采用共混挤出工     

Orthophosphates and Diphosphates Containing Zinc and Copper and Zinc and Cobalt

Solid solutions of diphosphates of zinc and copper and of zinc and cobalt were synthesized from mixtures of pure diphosphates at temperatures up to 1000°C. Their X-ray diffractometry patterns varied continuously from one end member to the other. Solid solutions of orthophosphates of composition Zn_3−xCox(PO₄)2, with x = 0.4–1.6, were formed at temperatures up to 950°C; all exhibited the structure of γ-Zn₃(PO₄)2. Solid solutions of orthophosphates of composition Zn_3−xCu_x(PO₄)2 exhibited more-complex behavior. At 1000°C and copper contents of 20–80 mol%, a phase that is related to Cu₃(PO₄)2, termed here the "ε-phase," predominated. At 850°–950°C and in the region from 20 mol% to ∼33 mol% of copper, the solid solutions (the "η-phase") adopted the structure of graftonite. At 800°–900°C and 10–15 mol% of copper, the solid solutions exhibited a new structure (the "δ-phase"), which we found to be related to the mineral sarcopside. At temperatures 950°C, the solutions that contained 5–15 mol% of copper (the "β-phase") had the structure of β-Zn₃(PO₄)2, whereas at 800°–850°C, solutions with 5 mol% of copper (the "-phase") exhibited the structure of γ-Zn₃(PO₄)2. Attempts to synthesize Cu⁺ZnPO₄ and Cu⁺Cu²⁺Zn₃(PO₄)3 were unsuccessful.     

油气储运系统中油气的回收及腐蚀与防护问题

油气储运系统已经与保障国家经济的发展息息相关,介绍了油气储运系统中油气回收问题及腐蚀与防护问题,并提出了相应的解决措施。     

Gemini型表面活性剂结构性能与应用

Gemini型表面活性剂的结构和性质与传统的表面活性剂有很大的不同,例如Gemini型表面活性剂可以视为两个普通表面活性剂在亲水基或者靠近亲水基处由连接基团通过化学键连接而成;Gemini表面活性剂的C20值和cmc值都比传统表面活性剂的值要低很多。着重介绍了Gemini型表面活性剂的特性,结构与表面活性的关系以及应用。     

油气集输处理工艺及工艺流程

为了提高油田的生产效率,设计最佳的油气集输处理的工艺流程,更好地完成油气水分离处理的任务。对油气集输工艺技术进行优化,发挥高效油气水分离处理设备的优势,提高油气水处理的质量,保证油气集输工艺顺利实施,获得最佳的油田产量外输。     

科技创新与钢铁科技进步

建设创新型国家是我们中华民族的历史责任。“自主创新、重点突破、支撑发展、引领未来”的16字方针应当成为我们未来创新活动的指南。建设创新型国家把自主创新放在首位,并提出了引领未来的高标准要求。钢铁科技创新必须突出重点,抓住创新成果产业化这个关键,支撑起行业和国民经济的发展。     

油气管道及储运设施安全保障技术发展现状及展望

相比已经完善丰富的开采和勘探技术,油气的运输以及储存却仍然存在不足之处。我国对能源安全提出更加严格要求的同时,对区域经济的发展规划也有足够重视。因此,保障油气管道的安全则成为了我国能源安全战略的重中之重。在阐释油气管道现阶段在储运安全保障技术发展状况的基础上,分析了现存的问题及解决问题的手段,并指出未来可能使用的目标策略,为今后研究者提供一定程度上的借鉴经验。     

石油与天然气地质与勘探开发措施

石油天然气的地质勘探开发目的是为了获得最佳的油气产能而进行的地质研究工作。石油天然气地质勘探工作具有非常重要的意义,通过地质勘探获得有价值的地层信息资料,对储层油气的显示进行评价和分析,确定具有工业开采价值,才能投入开发生产,为油田创造最佳的经济效益。     

膜的污染和劣化及其防治对策

较为系统地介绍了膜污染和劣化的定义和特点,因膜污染和劣化而造成的膜性能变化,以及如何预防、减少或清除膜污染和劣化的一些通用方法。     

Gel permeation and thin-layer chromatographic characterization and solution properties of butadiene and styrene homopolymers and copolymers

Gel permeation chromatographic (GPC) and thin-layer chromatographic (TLC) studies of polystyrene, polybutadienes (BR), and their copolymers (SBR) have been carried out. GPC primarily separates them on the basis of molecular size, and TLC, on the basis of composition. Methods of obtaining absolute molecular weight distributions for BR and SBR based upon variations of the Strasbourg Universal Calibration procedure are described. In particular, [η]–M relationships in both the GPC solvent (THF) and in a second solvent (toluene) were used; in addition, results of statistical mechanical calculations for \documentclass{article}\pagestyle{empty}\begin{document}$\overline {s^2 }$\end{document} (based on the assumption of negligible steric hindrance and freely rotating bonds) were applied. An experimental comparison of these methods was carried out, and use of the [η]–M relationships for both solvents was found to give satisfactory results. The predictions of the statistical theory were too low. A detailed study of polymer–solvent–gel interaction in the GPC unit was made through investigation of ternary phase equilibrium in the (polystyrene)–THF–(polymer) system. The polymers studied included BR and SBR with varying styrene contents. Experimental techniques for TLC separations of BR, SBR, and polystyrene according to the composition are described.