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Hao Huanqi Zhang Dewen 《水运科学研究》2006,(1)
防冻液在港口流动机械设备管理中的应用越来越普遍,但是由于使用不正确,不仅造成防冻液的严重浪费,而且未能充分发挥其应有作用。本文从防冻液的成分、分类、作用及使用方法等多方面进行了探讨,以期对广大使用者提供借鉴和帮助。 相似文献
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目前广为采用的防冻液是乙二醇型.乙二醇(HOCH2-CH2OH)俗称甘醇,能与水成各种比例混合,有比较明显的降低冰点作用. 相似文献
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Hydroxyapatite (HA) based materials have been widely used in the field of ligament tissue engineering in the past decades. It has been previously reported that HA can increase the penetration of marrow-derived mesenchymal stem cells (MSCs) and MSCs cells into scaffolds due to increased cell differentiation in biological media. Additionally, it was found that there are much difference between MSCs and anterior cruciate ligament (ACL) cells. For that reason, we mainly evaluate the biocompatibility of polyethylene terephthalate (PET) silk scaffold with fibroblasts cells in vitro. We cultured mouse fibroblasts cells on the substrate of PET fiber and PET-HA scaffold, respectively, and then observed the morphology by using scanning electron microscopy. Our data indicate that PET-HA scaffold has good biocompatibility with fibroblasts cells and can potentially be useful in enhancing the fibroblasts cell differentiation and proliferation. 相似文献
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曾有一朋友用饮料瓶盛放防冻液,放在车内用来更换防冻玻窗水,结果被孩子当饮料误服,导致中毒,差点至死亡。本人采访了疾病预防控制中心的专家,遇此情况如何处理? 汽车防冻液是汽车发动机冷却系统用的,一般由基础液和添加剂多种物质配合组成,用专门的容器盛装。常用的汽车防冻液是乙二醇型。乙二醇是导致防冻液中毒的最主要成份。常 相似文献
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乙二醇型防冻液是现在国内外使用最多的一种防冻液,由于可以全年用来冷却发动机,保护冷却系统免遭腐蚀,在冬季防冻,夏季防沸及防止水箱结垢,所以乙二醇防冻液被称为长效防冻液. 相似文献