CN108238814A - 一种蒙脱土自组装沉积在固体表面的方法 - Google Patents

一种蒙脱土自组装沉积在固体表面的方法 Download PDF

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CN108238814A
CN108238814A CN201611203357.5A CN201611203357A CN108238814A CN 108238814 A CN108238814 A CN 108238814A CN 201611203357 A CN201611203357 A CN 201611203357A CN 108238814 A CN108238814 A CN 108238814A
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montmorillonite
solids
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self assembly
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刘振东
李公让
张敬辉
武学芹
孙浩玉
卜凡康
明玉广
张守文
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Sinopec Oilfield Service Corp
Sinopec Shengli Petroleum Engineering Corp
Drilling Technology Research Institute of Sinopec Shengli Petroleum Engineering Corp
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Sinopec Shengli Petroleum Engineering Corp
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    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
    • C04B41/52—Multiple coating or impregnating multiple coating or impregnating with the same composition or with compositions only differing in the concentration of the constituents, is classified as single coating or impregnation
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C03C17/42—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating of an organic material and at least one non-metal coating
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    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
    • C04B41/009—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone characterised by the material treated
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    • C09K8/00—Compositions for drilling of boreholes or wells; Compositions for treating boreholes or wells, e.g. for completion or for remedial operations
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Abstract

本发明提供一种蒙脱土自组装沉积在固体表面的方法，该方法利用自组装技术使蒙脱土在固体表面吸附沉积，并利用交联技术改变沉积膜性能，加强沉积膜在固体表面的沉积效果。本发明技术方案是：室温下，将固体薄片依次分别浸入聚合物溶液、蒙脱土悬浊液和戊二醛溶液中，进行交替吸附，每次浸渍吸附时间5min~10min，间隔中用去离子水清洗片状固体上未发生吸附的多余溶液，并用氮气吹干，交替侵渍20~200个循环后，即可在固体薄片表面得到蒙脱土沉积层。本发明具有以下优势：（1）本发明采用蒙脱土自组装沉积成膜，并通过交联作用，进一步加强了沉积层与固体的亲和性；（2）本发明可用于石油钻井井壁固化技术中，提高井壁强度。

Description

一种蒙脱土自组装沉积在固体表面的方法
技术领域
本发明涉及石油钻井井壁加固技术领域中的一种蒙脱土自组装沉积在固体表面的方法。
背景技术
在过去的二十年里，各个国家的研究者们经过深入的探索，发现了多种超薄膜的制备方法。特别是在层层自组装这一领域，有着长足的进步，这是由于层层自组装这一方法在具有特殊功能性质的超薄膜的创新设计以及应用上具有非常好的效果。经过多年的发展，层层自组装技术已经变得逐渐成熟起来。
自组装膜技术的发展主要经历了三个阶段，即Langmuir-Blodgett(LB)膜技术、化学吸附自组装技术和静电吸附自组装技术。LB膜是使用特殊的装置，将分散在溶液中的不溶物，按照一定的排列方式，转移到固体支持物上，从而组成单分子层或多分子层膜。化学吸附自组装技术，主要是吸附质分子与固体表面的原子、分子等，发生电子转移、交换或公有，从而在吸附质和固体表面之间形成吸附化学键，这种吸附通常只有单分子层。静电吸附自组装，是通过对两种或多种带相反电荷的聚电解质进行交替吸附，从而在固体表面交替沉积形成多层膜的技术。
具有独特材料学性质的无机纳米片层材料也可以与层层组装技术相结合，Ferguson等报道了利用正价的聚电解质与硅酸盐纳米片组装成多层膜。厚度为200nm的多层膜结构规整，X射线衍射信号明显。Podsiadlo等使用聚乙烯醇(PVA) 和蒙脱土(MTM)制备了超强的聚合物纳米复合膜材料。纳米片层紧密堆积并有着清晰的平面取向。通过机械性能测试，作者得出单纯的PVA/MTM复合膜的最终拉伸强度和杨氏模量分别是纯PVA聚合物膜的4倍和10倍，而通过戊二醛交联后，多层膜的各项机械性能参数更是大幅度提高。有别于机械性能，Hammond及其合作者研究了加入无机纳米片层材料后，多层膜的离子传输性质。如利用层层组装技术制备出仿生矿化材料，就可用于石油钻井多个方面，用途广泛，如钻井井壁加固等。现有的研究者提出了控制碳酸钙晶体生长过程中晶态结构、形状和组装的方法。申请号为200710042997.7的专利提出了一种纳米层状碳酸钙仿生复合材料料，它是由低分子量有机物参与氯化钙和碳酸钠反应过程，导向方解石形成纳米薄层状结构，进而使层状结构定向组装纳米薄层的多层结构。这些研究对生物矿化材料的仿生合成起着重要的推动作用，但仍未能生长成具有天然碳酸钙结构的仿生材料，或者方法和材料性能还有待进一步提高。
发明内容
本发明的目的是针对现有技术存在的不足，提供一种蒙脱土自组装沉积在固体表面的方法，该方法利用自组装技术使蒙脱土在固体表面吸附沉积，并利用交联技术改变沉积膜性能，加强沉积膜在固体表面的沉积效果。
为了达到本发明的目的，本发明技术方案是这样实现的：
室温下，将固体薄片依次分别浸入聚合物溶液、蒙脱土悬浊液和戊二醛溶液中，进行交替吸附，每次浸渍吸附时间5min~10min，间隔中用去离子水清洗片状固体上未发生吸附的多余溶液，并用氮气吹干，交替侵渍20~200个循环后，即可在固体薄片表面得到蒙脱土沉积层。
所述聚合物为聚丙烯酸（PAA）、聚乙烯醇（PVA）、聚乙烯磺酸钠（PVS）中的一种或几种的组合。
所述聚合物溶液的质量百分比为0.1~0.5%wt；所述蒙脱土悬浊液的质量百分比0.5~1%wt。
所述固体薄片可为硅片、金属片、陶瓷片、岩石片、玻璃片、滤纸片中的一种或几种的组合。
本发明与现有技术相比具有以下优势：
（1）本发明采用蒙脱土自组装沉积成膜，并通过交联作用，进一步加强了沉积层与固体的亲和性；
（2）本发明可用于石油钻井井壁固化技术中，提高井壁强度。
具体实施方式
实施例1：
室温下，将岩石片依次分别交替浸入PVA（聚乙烯醇）溶液（0.5%wt）、蒙脱土悬浊液（1%wt）和GA（戊二醛）溶液中，进行交替吸附，每次浸渍吸附时间5min，间隔中用去离子水清洗片状固体上未发生吸附的多余溶液，并用氮气吹干，交替侵渍200个循环时后，即可在固体薄片表面得到蒙脱土沉积层。
实施例2：
室温下，将硅片依次分别交替浸入聚乙烯磺酸钠（PVS）溶液（0.3%wt）、蒙脱土悬浊液（0.8%wt）和GA（戊二醛）溶液中，进行交替吸附，每次浸渍吸附时间10min，间隔中用去离子水清洗片状固体上未发生吸附的多余溶液，并用氮气吹干，交替侵渍20个循环时后，即可在固体薄片表面得到蒙脱土沉积层。
实施例3：
室温下，将玻璃片依次分别交替浸入PAA（聚丙烯酸）溶液（0.1%wt）、蒙脱土悬浊液（0.5%wt）和GA（戊二醛）溶液中，进行交替吸附，每次浸渍吸附时间10min，间隔中用去离子水清洗片状固体上未发生吸附的多余溶液，并用氮气吹干，交替侵渍100个循环时后，即可在固体薄片表面得到蒙脱土沉积层。

Claims (4)

1.一种蒙脱土自组装沉积在固体表面的方法，其特征在于：室温下，将固体薄片依次分别浸入聚合物溶液、蒙脱土悬浊液和戊二醛溶液中，进行交替吸附，每次浸渍吸附时间5min~10min，间隔中用去离子水清洗片状固体上未发生吸附的多余溶液，并用氮气吹干，交替侵渍20~200个循环后，即可在固体薄片表面得到蒙脱土沉积层。
2.根据权利要求1所述的蒙脱土自组装沉积在固体表面的方法，其特征在于：所述聚合物为聚丙烯酸、聚乙烯醇、聚乙烯磺酸钠中的一种或几种的组合。
3.根据权利要求1或2所述的蒙脱土自组装沉积在固体表面的方法，其特征在于：所述聚合物溶液的质量百分比为0.1~0.5%wt；所述蒙脱土悬浊液的质量百分比0.5~1%wt。
4.根据权利要求1所述的蒙脱土自组装沉积在固体表面的方法，其特征在于：制备用固体薄片包括硅片、金属片、陶瓷片、岩石片、玻璃片、滤纸片中的一种或几种的组合。
CN201611203357.5A 2016-12-23 2016-12-23 一种蒙脱土自组装沉积在固体表面的方法 Pending CN108238814A (zh)

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CN113969145A (zh) * 2020-07-22 2022-01-25 中石化石油工程技术服务有限公司 一种沉积复合膜及其制备方法和用途

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Cited By (2)

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CN113969145A (zh) * 2020-07-22 2022-01-25 中石化石油工程技术服务有限公司 一种沉积复合膜及其制备方法和用途

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