Climate and evaluation of crystallizable erosion of concrete by sulfates in water and soil 土中硫酸盐对混凝土结晶腐蚀的气候与评价
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Nanoparticles , alkylated nanoparticles and composited nanoparticles have different influence on the microcrystalline size of crystallizable polymer ( i . e . , pp and pe ) 通过xrd测试我们发现，纳米粒子、烷基化纳米粒子和复合纳米粒子对结晶型聚合物( pe和pp )的微晶尺寸有着不同的作用。
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Applicable to lpressure measurements for liquid mediums at high temperature , such as corrosive , high viscous , crystallizable and solid - particles containing fluids commonly used in petrochemical indusery , etc 隔膜压力表用于化工等部门生产过程中测量具有腐蚀性、高粘度、易结晶、含有固体状颗粒、温度较高的液体介质的压力。
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Consequently , with increasing mmt content , the tensile strength and young ' s modulus of hdpe - g - aa / mmt nanocomposites increased , while that of hdpe / mmt composites decreased . moreover , the addition of mmt to hdpe - g - aa decreased the melting temperature and the degree of crystallization of the matrix . these changes may be attributed to high interfacial adhesion between hdpe - g - aa matrix and exfoliated clay , which reduces the mobility of crystallizable pe chain segments , and subsequently reduces the crystallization ability 研究结果表明： mmt在hdpe中不能达到纳米级分散，而在hdpe - g - aa中， mmt能以插层型利剥离型的结构存在，这主要是由于极性的丙烯酸接枝在hdpe上提高了后者的极性，而且能与mmt上的活性基团进行化学反应，从而提高了pe链进入mmt层间的可能性，使mmt在基体中达到纳米级分散。
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