WO2019000349A1 - 一种硅胶粘土的制备工艺 - Google Patents

一种硅胶粘土的制备工艺 Download PDF

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Publication number
WO2019000349A1
WO2019000349A1 PCT/CN2017/090938 CN2017090938W WO2019000349A1 WO 2019000349 A1 WO2019000349 A1 WO 2019000349A1 CN 2017090938 W CN2017090938 W CN 2017090938W WO 2019000349 A1 WO2019000349 A1 WO 2019000349A1
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WO
WIPO (PCT)
Prior art keywords
silica sol
silica gel
reaction
obtaining
temperature
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Application number
PCT/CN2017/090938
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English (en)
French (fr)
Inventor
黄玉倩
Original Assignee
黄玉倩
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 黄玉倩 filed Critical 黄玉倩
Priority to PCT/CN2017/090938 priority Critical patent/WO2019000349A1/zh
Publication of WO2019000349A1 publication Critical patent/WO2019000349A1/zh

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Classifications

    • C—CHEMISTRY; METALLURGY
    • 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
    • C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
    • C04B14/02—Granular materials, e.g. microballoons
    • C04B14/04—Silica-rich materials; Silicates
    • C04B14/10—Clay

Definitions

  • the invention relates to the field of preparation of silica sol, in particular to a preparation process of silica gel clay.
  • the object of the present invention is to provide a clay material which is low in cost and can be used as a basic material for building and ceramics in place of natural clay.
  • the technical problem to be solved by the present invention is to provide a preparation process of a silica gel clay.
  • the technical solution of the present invention is: a preparation process of a silica gel clay, comprising the steps of: first mixing clay with malay gum, then heating and aging; adding active silicic acid to the resultant, And maintaining the resultant as alkaline, and then keeping warm to obtain a silica sol; and optionally concentrating the obtained silica sol; then taking 2000 parts of the obtained silica sol into a reaction vessel, and adding 210 parts by mass to the solution The ionized water is heated to 881-85 ° C, and the temperature is maintained at 881-85 ° C until the reaction is completed, and a uniform stable system is formed to obtain a silica gel clay.
  • the invention has the advantages that: through precise control of the production process and reasonable compatibility and ratio of the modifier, the following technical effects are obtained: the modification time is controlled to about 5 hours, and the surfactant and the dispersant are not contained.
  • the addition of additives, saving the production process, and the modified silica sol prepared by the process has the following characteristics: good polishing performance and hardness; capable of maintaining a high quality concentration of 40%; excellent stability, 50 ° C After 2 years of storage, no gelation, precipitation, etc., and the kinematic viscosity can be maintained within 5 cSt. After the polishing solution is prepared, the polishing performance can be repeated for at least 20 times.
  • the silica sol of the present invention has high purity and high stability.
  • the clay is mixed with the male gum, and then heated and matured; then the active silicic acid is added to the resultant, and the resultant is kept alkaline, and then kept warm to obtain a silica sol; and optionally, the obtained silica sol is concentrated; Then, 2000 parts of the obtained silica sol was placed in a reaction vessel, 210 parts by mass of deionized water was added thereto, and the temperature was raised to 881-85 ° C by heating, and the temperature was maintained at 881-85 ° C until the reaction was completed, thereby forming a uniform stable system. Silica gel clay.
  • the modification time is controlled to about 5h, and no additives such as surfactants and dispersants are added, saving
  • the production process, and the modified silica sol prepared by the process has the following characteristics: good polishing performance and hardness; capable of maintaining a high quality concentration of 40%; excellent stability, storage at 50 ° C for 2 years does not occur Gel, precipitation and other phenomena, and the kinematic viscosity can be maintained within 5cSt; after polishing solution can be reused at least 20 times or more polishing performance.
  • the silica sol of the present invention has high purity and high stability.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Civil Engineering (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Silicon Compounds (AREA)

Abstract

一种硅胶粘土的制备工艺，将活性硅酸与碱性化合物混合，加热熟化；加入活性硅酸，保温，得到硅溶胶，进行浓缩；将硅溶胶通过强酸性阳离子树脂，加入金属离子螯合剂，静置；将所得物依次通过强酸性阳离子树脂、阴离子树脂、强酸性阳离子树脂，得到酸性硅溶胶；加入不含金属离子的碱性化合物，得到碱性硅溶胶；将制得的硅溶胶放入反应容器中，加入去离子水，加热升温至反应完毕；保持反应容器中体系温度，在搅拌状态下加入聚合物改性剂，然后继续恒温搅拌反应体系5h直至反应完毕，得到硅胶粘土。优点在于：硅溶胶纯度高且稳定性高。

Description

一种硅胶粘土的制备工艺 一种硅胶粘土的制备工艺
技术领域
本发明涉及硅溶胶制备领域，特别涉及一种硅胶粘土的制备工艺。
背景技术
目前粘土主要作为儿童玩耍使用，但因为粘土直接与小朋友皮肤接触影响小朋友的健康且成型品易碎。本发明的目的是提供粘土材料，本材料成本低，可以代替天然粘土，做成建筑，陶瓷业的基本原料。
发明内容
本发明要解决的技术问题是提供一种硅胶粘土的制备工艺。
为解决上述技术问题，本发明的技术方案为：一种硅胶粘土的制备工艺，包括下述步骤：先将粘土与马来胶混合，然后进行加热熟化；再向所得物中加入活性硅酸，并保持所得物为碱性，然后保温，得到硅溶胶；并任选将所得的硅溶胶进行浓缩；再将制得的硅溶胶取2000份放入反应容器中，向其中加入210质量份的去离子水，加热升温至881-85℃，保持881-85℃恒温至反应完毕，形成均一稳定体系得到硅胶粘土。
本发明的优点在于：通过对生产工艺流程的精确控制以及改性剂的合理配伍及配比，取得了如下的技术效果：将改性时间控制在5h左右，且不含表面活性剂、分散剂等外加助剂，节约了生产工序，且通过该工艺制备得到的改性硅溶胶，具有如下特性：具有良好的抛光性能和硬度；能够保持40％的高质量浓度；稳定性极好，50℃下贮存2年未发生凝胶、沉淀等现象，并且运动粘度可一直维持在5cSt以内；制成抛光液后可重复使用至少20次以上抛光性能不变。
本发明的硅溶胶纯度高且稳定性高。
具体实施方式
下面的实施例可以使本专业的技术人员更全面地理解本发明，但并不因此将本发明限制在所述的实施例范围之中。
先将粘土与马来胶混合，然后进行加热熟化；再向所得物中加入活性硅酸，并保持所得物为碱性，然后保温，得到硅溶胶；并任选将所得的硅溶胶进行浓缩；再将制得的硅溶胶取2000份放入反应容器中，向其中加入210质量份的去离子水，加热升温至881-85℃，保持881-85℃恒温至反应完毕，形成均一稳定体系得到硅胶粘土。
通过对生产工艺流程的精确控制以及改性剂的合理配伍及配比，取得了如下的技术效果：将改性时间控制在5h左右，且不含表面活性剂、分散剂等外加助剂，节约了生产工序，且通过该工艺制备得到的改性硅溶胶，具有如下特性：具有良好的抛光性能和硬度；能够保持40％的高质量浓度；稳定性极好，50℃下贮存2年未发生凝胶、沉淀等现象，并且运动粘度可一直维持在5cSt以内；制成抛光液后可重复使用至少20次以上抛光性能不变。
本发明的硅溶胶纯度高且稳定性高。
本行业的技术人员应该了解，本发明不受上述实施例的限制，上述实施例和说明书中描述的只是说明本发明的原理，在不脱离本发明精神和范围的前提下，本发明还会有各种变化和改进，这些变化和改进都落入要求保护的本发明范围内。本发明要求保护范围由所附的权利要求书及其等效物界定。

Claims (1)

  1. 一种硅胶粘土的制备工艺，其特征在于：包括下述步骤：先将粘土与马来胶混合，然后进行加热熟化；再向所得物中加入活性硅酸，并保持所得物为碱性，然后保温，得到硅溶胶；并任选将所得的硅溶胶进行浓缩；再将制得的硅溶胶取2000份放入反应容器中，向其中加入210质量份的去离子水，加热升温至881-85℃，保持881-85℃恒温至反应完毕，形成均一稳定体系得到硅胶粘土。
PCT/CN2017/090938 2017-06-29 2017-06-29 一种硅胶粘土的制备工艺 WO2019000349A1 (zh)

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Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1474790A (zh) * 2000-09-20 2004-02-11 无机基体组合物和掺入所述基体组合物的复合材料
EP1414745A1 (en) * 2001-08-07 2004-05-06 PPG Industries Ohio, Inc. Silica-based particulates
CN103992525A (zh) * 2014-05-22 2014-08-20 陈雄 一种伊蒙粘土插层二氧化硅双复合天然胶的制备方法
CN104230254A (zh) * 2014-08-21 2014-12-24 王明清 粘土材料
CN104525064A (zh) * 2014-12-24 2015-04-22 中科院广州化学有限公司 一种碱性硅溶胶及其制备方法
CN105143510A (zh) * 2013-04-18 2015-12-09 3M创新有限公司 纳米二氧化硅/粘土组合物和涂覆制品及其制备方法
CN105503146A (zh) * 2015-12-24 2016-04-20 成都新柯力化工科技有限公司 一种激光烧结3d打印用粘土材料及其制备方法
CN105688798A (zh) * 2016-01-29 2016-06-22 常州达奥新材料科技有限公司 一种光敏感高热稳定性柱撑粘土材料的制备方法
CN106116598A (zh) * 2016-06-24 2016-11-16 武汉科技大学 一种不烧粘土‑硅溶胶结合硅酸铝砖及其制备方法

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1474790A (zh) * 2000-09-20 2004-02-11 无机基体组合物和掺入所述基体组合物的复合材料
EP1414745A1 (en) * 2001-08-07 2004-05-06 PPG Industries Ohio, Inc. Silica-based particulates
CN105143510A (zh) * 2013-04-18 2015-12-09 3M创新有限公司 纳米二氧化硅/粘土组合物和涂覆制品及其制备方法
CN103992525A (zh) * 2014-05-22 2014-08-20 陈雄 一种伊蒙粘土插层二氧化硅双复合天然胶的制备方法
CN104230254A (zh) * 2014-08-21 2014-12-24 王明清 粘土材料
CN104525064A (zh) * 2014-12-24 2015-04-22 中科院广州化学有限公司 一种碱性硅溶胶及其制备方法
CN105503146A (zh) * 2015-12-24 2016-04-20 成都新柯力化工科技有限公司 一种激光烧结3d打印用粘土材料及其制备方法
CN105688798A (zh) * 2016-01-29 2016-06-22 常州达奥新材料科技有限公司 一种光敏感高热稳定性柱撑粘土材料的制备方法
CN106116598A (zh) * 2016-06-24 2016-11-16 武汉科技大学 一种不烧粘土‑硅溶胶结合硅酸铝砖及其制备方法

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