Soft pvc / mmt ( spvc / mmt ) nanocomposite . ommt can been directly used for the preparation of spvc / mmt nanocomposite because dioctyl phthalate ( dop ) plasticizer can improve the heat stabilization of pvc in some sort . the space of the layers of mmt in spvc / mmt nanocomposite reached 3 . 73nm 在软质pvc八叭mt复合体系中，由于增塑剂dop对pvc有一定的热稳定作用，可以直接利用ommt制备软质pvc / mmt插层型纳米复合材料，蒙脱上层间距为3 . 73nm 。
The main phosphorus in autumn 1997 was pp , with the percentage about 54 % , phosphate and dop was about 29 % and 17 % respectively . while phosphate was the dominate fraction with about 51 % of phosphorus in spring 1998 , the pp and dop was 30 % and 19 % respectively 秋季营养盐受长江冲淡水影响较大，春季该海域po4一p受外海高盐水影响较秋季大，具体而言，两季节5103一si和din均主要来源于陆源输入，但秋季对n03一n影响较大，春季则对nh4一n影响较大。
The concentration of silicate , phosphate , dop , pp and tp in autumn 1997 were higher than those in spring 1998 , the average concentration were 11 . 6 ? . 7 , 0 . 44 ? . 09 , 0 . 26 ? . 18 , 0 . 82 ? . 99 and 1 . 52 ? . l5 mol / dm3 for autumn , and 9 . 61 ? . 84 , 0 . 3410 . 13 , 0 . 13 ? . 11 , 0 . 2110 . 14 1 0 . 6810 . 24 mol / dm3 in spring , respectively 1997年秋季海水中硅及各种形态磷的含量均高于春季，除no _ 3 - n外， 1998年春季海水中各种形态氮的浓度均高于秋季。秋季pn和pp显示出较强的垂直浓度梯度，其他形态营养盐垂直分布比较均匀。
Mushy pvc ( dop + additives ) - beater ( stir well ) - vacuuming ( materiel has been completely dewatered and debubbled after vacuuming ) or mix with color paste which has been processed by ball mill and then dropped into mould cavity by needle cylinder ) - solidified in the constant temperature box ( color fixing ) - input basic material - sent to the constant temperature box in the flowing way and then forming and then forming and sent out automatically - cooled by fan - finished products 糊状pvc （增塑剂dop +助剂- - -打浆机搅拌均匀- - -抽真空处理） （真空机处理后的物料已完全脱离水分和气泡）或球磨机处理后的色浆混合后用针筒滴入模具形腔- - -放入恒温箱中固化（色彩定形） - - -注入底料- - -流水式送入恒温机，定型后自动送出- - -风扇冷却- - -成品
In our nation the regulation for indoor hygiene will also appear publicly acquiring that paints containing benzene , aromatics , dissociative formaldehyde , dissociativetdi , dop , ethylene glycol , ester , heavy metal , and volatile organic substance etc . will be used limitedly , which will drive forward the development of paints for environmental protection 我国也将出台“室内用涂料卫生规范” ，限制室内用涂料中苯、芳香烃、游离甲醛、游离tdi含量、邻苯二甲酸酯、乙二醇醚及酯类、重金属含量、有机挥发化合物含量等有害物质的使用，这将推动环保型涂料的进一步发展。
