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- SDJ2 fluid loss additive for oil well cementing is synthesized from water-soluble modified natural polymer HEC with suitable average molecular weight, and the properties of the grout contained SDJ2 is tested in laboratory. 选用合适平均分子量的水溶性天然高分子改性产物羟乙基纤维素(HEC)合成一种油井水泥降失水剂SDJ2,并对添加SDJ2的水泥浆的性能进行了室内评价。
- modified nature polymer 改性天然高分子
- Preparation of modified natural polymer and inorganic polymer composite flocculant PMC 改性天然高分子与无机高分子复配絮凝剂PMC的研制
- Application of Modified Natural Polymer Water Treatment Reagent to Treating Oilfield Wastewater 天然高分子改性水处理剂在处理油田污水中的应用
- The Sedimentation Rate and Fractional Dimension During Flocculation with Modified Natural Polymer and Polymeric Aluminum Chloride 改性天然高分子絮凝剂和聚合氯化铝复合沉降与絮体分形
- The modified polymer flocculant amylum and lignin are reviewed in detail and point out the development.Find a new way in make use of the nature polymer resource. 综述了淀粉和木质素两类天然高分子改性絮凝剂的研究进展,分别指出两类分散剂的研究方向,指出应充分利用这些天然高分子资源,从开发天然改性絮凝剂方面找到一条创新的道路。
- Keywords modified natural polymer drilling fluid;clay free polyglycol drilling fluid;hole cleaning;horizontal well;horizontal drilling; 改性天然高分子钻井液;聚合醇无固相钻井液;井眼净化;井眼清洁;水平井;水平钻井;
- Therefore, a very significant challenge is to modify natural polymers to take advantage of their useful barrier properties and find ways to reduce their leakiness toward water vapor. 因此，一个非常重要的挑战是要修改天然聚合物，以利用其有益的阻隔性能，并设法减少其泄漏的水蒸汽。
- Silk fibroin, which is a good functional nature polymer, is very suitable for use as biomaterial and medical material. 丝素是一种性能优良的天然高分子,在生物、医药等很多方面有着广泛的应用。
- This natural polymer is FAST hydrating dispersible guar gum. 这是一种快速溶胀型天然瓜尔胶多聚糖。
- Wool, an abundant natural polymer,is a kind of polyamide derived from cystine. 以天然生物高分子羊毛为载体制备了羊毛-钯络合物催化剂。
- This paper introduces the present studies on the natural polymer flocculation agents modified by starch,chitosan,lignin and gum,and their applications in the wastewater treatment are summarized. 概括了以淀粉、壳聚糖、木质素和植物胶为原料改性而成的天然高分子有机絮凝剂的研究与应用概况,并对它们在废水处理中的应用和发展进行了综述。
- It's only human nature to want a comfortable life. 想过舒适的生活不过是普通人的本性。
- modified natural high molecular polymer 改性天然高分子
- Chitosan is an ideal microencapsulation material because it is a bio-degradable natural polymer without toxicity. 壳聚糖无毒、无害,易于生物降解,不污染环境,是一种理想的微胶囊壁材。
- Natural polymer used in liquor-making industry included amylum, cellulose, hemicellulose and protein etc. 制酒行业中应用的天然高分子有淀粉、纤维素、半纤维素及蛋白质等；
- The modified natural rubber latex were prepared by grafting methyl methacrylate(MMA) monomer and intercalating modified montmorillonite. 采用胶乳接枝插层法制备了纳米蒙脱土改性天然胶乳,并对其性能进行了研究。
- low-temperature modified nature rubber 低温改性天然橡胶
- Lignin are natural polymers with inertness of reaction. 木质素是天然高分子聚合物,具有一定的化学反应惰性。
- The contents are involved with organic synthetical polymer flocculant, natural polymer flocculant and microbic flocculant. 内容涉及合成有机高分子絮凝剂、化学改性天然高分子絮凝剂和微生物絮凝剂;
