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鈉基膨潤土的應用

發布者：隆中重工發布日期：2015-09-26

鈉基膨潤土是根據蒙脫石層間可交換陽離子種類、含量來劃分：堿性系數大于或等于1的爲鈉基膨潤土，小于1的爲鈣基膨潤土。人工鈉基膨潤土由于鈉化條件不一，失效溫度不一，但

鈉基膨潤土是根據蒙脫石層間可交換陽離子種類、含量來劃分：堿性系數大于或等于1的爲鈉基膨潤土，小于1的爲鈣基膨潤土。

人工鈉基膨潤土由于鈉化條件不一，失效溫度不一，但都低于自然生成鈉基膨潤土；自然生成鈉基膨潤土的膨脹力比人工鈉基膨潤土大；自然生成鈉基膨潤土比人工鈉基膨潤土c軸有序度G，晶粒較細，分散性强。钠基膨润土较之鈣基膨潤土的物理化学性质和工艺技术性能*越。主要表现在：吸水速度慢，但吸水率和膨脹倍數大；陽離子交換量G；在水介質中分散性好，膠質價G；它的膠體懸浮液觸變性、粘度、润滑性好，pH 值G；熱穩定性好；有較G的可塑性和較強的粘結性；熱濕拉強度和幹壓強度G。所以鈉基膨潤土的使用價值和經濟價值較G。人工鈉基膨潤土的理化性能除取決于它所含的蒙脫石種類和含量外，還取決于人工鈉化的方法和人工鈉化程度。

鈉基膨潤土的應用
編輯

1、在鑽井中，配置具有G流變性和觸變性能的鑽井泥漿懸浮液。

2、在機械制造中，可作鑄造型砂，粘結劑，可克服鑄件的“夾砂”，“起皮”現象，降低鑄件廢品率，保證鑄件的*度和光潔度。

3、在造紙業中用作紙張填充劑，增強紙張光亮度。

4、在紡織印染液中用作防靜電塗層，代替澱粉上漿及做印花塗料。

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