塑料用丙稀酸清漆稀释剂 thinner of acrylic varnish for plastics
锌置换了稀酸中的氢 zinc displaces the hydrogen of dilute acids
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The common method used by domestic and foreign scientists is removing the cobalt from the surface of the substrate by etching substrate using thin acid solution at room temperature . but the internal co will still overflow during mpcvd 为降低成核及成膜过程中钴的副作用,国内外通常采用的方法是将硬质合金基体在室温下用稀酸溶液浸泡一定时间,从而除去基体表面的钴。
A kind of chiral azo molecule derived from amino acid , n - [ 4 - ( 4 - dodecyloxyphenylazo ) benzoyl ] - l - glutamic acid ( c12 - azo - l - glu ) , was investigated . the photochromism , photoinduced birefringence , and holographic recording in c12 - azo - l - glu doped poly ( methyl methacrylate ) ( pmma ) films were studied . c12 - azo - l - glu underwent a reversible tram - cis - trans isomerization in the polymer matrix 我们利用手性偶氮苯染料c _ ( 12 ) - azo - l - glu掺杂聚甲基丙稀酸甲脂( pmma )薄膜为实验样品,对其光致变色过程,光致双折射和全息存储特性进行了研究分析。
Treatment of the spinel limn2o4 with aqueous acid produces - mno2 . x - ray diffraction and atomic absorption spectroscopy show that - mno2 with lattice constant of 0 . 806nm preserves the structural framework of the limn2o4 and the conversion of limn2o4 to - mno2 results in some contraction of the lattice 利用limn2o4与稀酸作用制得- mno2 ,经xrd 、原子吸收光谱( aas )分析表明- mno2仍然保持了尖晶石的面心立方点阵,晶胞参数0 . 806nm ; limn2o4经过酸处理、锂离子脱出后晶胞体积发生了收缩。
Three items of products have filled the domestic blank , and achieved domestic leading level . among them , high temperature concentrated acid liquor pump attain the second prize of county advanced technology award , national key new product project ; force diluted acid special purpose pump attains the third prize of the county advanced technology award 三项产品填补了国内空白,达到了国内领先水平,其中,高温浓酸液下泵获县科技进步二等奖,国家重点新产品项目;强力稀酸专用泵获县科技进步三等奖。
As predicted theoretically , the ps polymer spreaded over the surface of the titania particles to form composite particles with core - shell structure . the influence of ph value and non - ion surfactant in heterocoagulation was discussed . the property of the coated particles was characterized by sem , and zeta potential , particle size distribution of the particles before and after encapsulation was obtained by laser particle size analyzer 根据机械力化学的原理,采用自行制备的微米级ps和pmma (聚甲基丙稀酸甲酯)高聚物微球、金属粒子、纳米级的tio _ 2 、炉料为原料粒子,通过采用自行研制的干式冲击设备和lg搅拌磨制得以高聚物微球、金属粒子为核,纳米tio _ 2 、碳黑粒子等为包覆粒子的具有不同特殊功能的纳米微米复合粒子。