上海其福青材料科技有限公司 已通过实名认证

<***N style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang=EN-US>      PVP<***N style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-bidi-font-size: 12.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">作为一种合成水溶性高分子化合物，具有水溶性高分子化合物的一般性质，如胶体保护作用、成膜性、粘结性、吸湿性、增溶或凝聚作用、某些化合物的络合能力等。但其**特色，因而受到人们重视的是其优异的溶解性能及生理相容性。在合成高分子中，象<***N style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang=EN-US>PVP<***N style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-bidi-font-size: 12.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">这样既溶于水，又溶于大部分有机溶剂，毒性很低，生理相容性好的品种并不多见。<***N style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 10.5pt; mso-font-kerning: 1.0pt; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang=EN-US>PVP<***N style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-bidi-font-size: 12.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">的优异性能使其虽然价格较贵而仍然得到越来越广泛的应用，特别是在医药、食品、化妆品这些与人们健康密切相关的领域中。

<***N style="FONT-FAMILY: 宋体; FONT-SIZE: 10.5pt; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-font-kerning: 1.0pt; mso-bidi-font-size: 12.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">

<***N style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">由于<***N lang=EN-US>PVP<***N style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">很少单独被应用，大部分情况下，它与其它物质结合使用，因此无论是固体还是溶液，其相容性和相溶性是非常重要的。如果<***N lang=EN-US>PVP<***N style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">是作为增稠剂或保护胶体，一般要求**产品为均匀的液态。

<***N lang=EN-US><***N style="mso-spacerun: yes">    <***N style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">如<***N lang=EN-US>PVP<***N style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">作为染发剂、定发剂或药片的包衣，则<***N lang=EN-US>PVP<***N style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">的膜的状态是重要的。加入某些天然的或合成的高分子聚合物或有机化合物可有效的调节<***N lang=EN-US>PVP<***N style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">的吸湿性和柔软性而不影响膜的光泽和透明度。大气中的水也可作为一种增塑剂。可以<***N lang=EN-US>10-50<***N style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">％浓度加入到<***N lang=EN-US>PVP<***N style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">中去来控制粘性或吸湿性的改性物有羧甲基纤维素、**纤维素、****纤维素、虫胶、邻苯二**二甲酯；还有乙二醇、甘油、二乙二醇、山梨醇、聚乙二醇<***N lang=EN-US>400<***N style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、尿素等。其中前五种化合物有减粘作用，后六种化合物有增加粘性的作用。加入<***N lang=EN-US>10%<***N style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">芳磺酰胺<***N lang=EN-US>-<***N style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">甲醛树脂可使<***N lang=EN-US>PVP<***N style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">在大气中基本无粘性。

<***N lang=EN-US><***N style="mso-spacerun: yes">    <***N style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">在较低的相对湿度下，<***N lang=EN-US>PVP<***N style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">膜呈脆性。可加入增塑剂增加其塑性，在<***N lang=EN-US>33%<***N style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，<***N lang=EN-US>50%<***N style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">和<***N lang=EN-US>75%<***N style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">相对湿度下，效果较好的增塑剂分别为<***N lang=EN-US>10%<***N style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">二乙二醇、<***N lang=EN-US>10%<***N style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">甘油、<***N lang=EN-US>10%<***N style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">聚乙二醇<***N lang=EN-US>400<***N style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、<***N lang=EN-US>25%<***N style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">二乙二醇、<***N lang=EN-US>25%<***N style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">甘油和<***N lang=EN-US>25%<***N style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">山梨醇和<***N lang=EN-US>25%<***N style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">邻苯二**二甲酯。在<***N lang=EN-US>PVP<***N style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">用于发型固定剂时，羊毛脂衍生物是有效的增塑剂和粘度控制剂。

<***N lang=EN-US><***N style="mso-spacerun: yes">    <***N style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">大部分无机盐，许多天然合成树脂以及表面活性剂与<***N lang=EN-US>PVP<***N style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">溶液或固体有很好的相性。     <***N style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><***N style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">  

<***N style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'"><***N style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">  与<***N lang=EN-US>PVP<***N style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">相容性好的化合物，能在一定溶剂和浓度下，形成透明澄清的溶液<***N lang=EN-US>(<***N style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">或有浅色<***N lang=EN-US>)<***N style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">，用其浇注的薄膜也是均匀透明的。在这些聚合物和大分子中，有聚乙二醇、**纤维素、<***N lang=EN-US>EVA<***N style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、聚***、<***N lang=EN-US>PVC<***N style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、<***N lang=EN-US>PVA<***N style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">、聚**醇缩甲醛、聚**醇缩丁醛、甲基纤维素、乙基纤维素、羧甲基纤维素、虫胶、松香树脂、鹿角胶、海藻酸钠、糊精、蜂蜡、羊毛脂。在表面活性剂中有：十二烷基**钠、烷基磺酸酯、烷基酚聚氧**醚**铵、十二烷基苯磺酸钠，以及几乎全部阳离子表面活性剂。还有一些化合物可在低浓度溶液中与<***N lang=EN-US>PVP<***N style="FONT-FAMILY: 宋体; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'">互溶，但成膜后却不能成为均匀透明的膜。