Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of nano calcium carbonate for low-modulus high-elasticity silicone adhesive
The invention relates to the technical field of preparation of nano calcium carbonate, and discloses a preparation method of nano calcium carbonate for a low-modulus high-elasticity silicone adhesive, and the method comprises the following steps: calcining limestone at 1100-1200 DEG C to obtain quick lime; quick lime and tap water are stirred and digested to prepare lime slurry; transferring the lime slurry to a carbonization tower for cooling, adding a crystal form control agent into the lime slurry, and introducing carbon dioxide for carbonation reaction to obtain a calcium carbonate suspension with the pH value of 7.5; transferring the calcium carbonate suspension into a treatment barrel for heating, and adding long-chain fatty acid sodium salt for surface modification to obtain finished product slurry; respectively carrying out filter pressing dehydration, drying dehydration and crushing on the finished product slurry to obtain semi-finished product powder; and adding grease into the semi-finished product powder for dry modification to obtain the active nano calcium carbonate. The invention is suitable for the preparation method of the low-modulus high-elasticity nano calcium carbonate for the silicone adhesive, and the low-modulus high-elasticity nano calcium carbonate has the advantages of low modulus, high elastic recovery rate, good thixotropy and good fluidity.
本发明涉及纳米碳酸钙的制备技术领域，公开了一种低模量高弹性硅酮胶用纳米碳酸钙的制备方法，所述方法包括如下步骤：将石灰石经1100‑1200℃煅烧制得生石灰；将生石灰与自来水搅拌消化制备得到石灰浆；将石灰浆移至碳化塔降温，并且在石灰浆中加入晶型控制剂，并且通入二氧化碳进行碳酸化反应，得到pH为7.5的碳酸钙悬浮液；将碳酸钙悬浮液移至处理桶中加热，加入长链脂肪酸钠盐进行表面改下，得到成品浆液；将成品浆液分别经压滤脱水、烘干脱水、粉碎后得到半成品粉；对半成品粉加入油脂进行干法改性得到活性纳米碳酸钙。本发明适用于一种低模量高弹性硅酮胶用纳米碳酸钙的制备方法，具有低模量、高弹性恢复率、触变性好、流动性好的优点。
Preparation method of nano calcium carbonate for low-modulus high-elasticity silicone adhesive
The invention relates to the technical field of preparation of nano calcium carbonate, and discloses a preparation method of nano calcium carbonate for a low-modulus high-elasticity silicone adhesive, and the method comprises the following steps: calcining limestone at 1100-1200 DEG C to obtain quick lime; quick lime and tap water are stirred and digested to prepare lime slurry; transferring the lime slurry to a carbonization tower for cooling, adding a crystal form control agent into the lime slurry, and introducing carbon dioxide for carbonation reaction to obtain a calcium carbonate suspension with the pH value of 7.5; transferring the calcium carbonate suspension into a treatment barrel for heating, and adding long-chain fatty acid sodium salt for surface modification to obtain finished product slurry; respectively carrying out filter pressing dehydration, drying dehydration and crushing on the finished product slurry to obtain semi-finished product powder; and adding grease into the semi-finished product powder for dry modification to obtain the active nano calcium carbonate. The invention is suitable for the preparation method of the low-modulus high-elasticity nano calcium carbonate for the silicone adhesive, and the low-modulus high-elasticity nano calcium carbonate has the advantages of low modulus, high elastic recovery rate, good thixotropy and good fluidity.
本发明涉及纳米碳酸钙的制备技术领域，公开了一种低模量高弹性硅酮胶用纳米碳酸钙的制备方法，所述方法包括如下步骤：将石灰石经1100‑1200℃煅烧制得生石灰；将生石灰与自来水搅拌消化制备得到石灰浆；将石灰浆移至碳化塔降温，并且在石灰浆中加入晶型控制剂，并且通入二氧化碳进行碳酸化反应，得到pH为7.5的碳酸钙悬浮液；将碳酸钙悬浮液移至处理桶中加热，加入长链脂肪酸钠盐进行表面改下，得到成品浆液；将成品浆液分别经压滤脱水、烘干脱水、粉碎后得到半成品粉；对半成品粉加入油脂进行干法改性得到活性纳米碳酸钙。本发明适用于一种低模量高弹性硅酮胶用纳米碳酸钙的制备方法，具有低模量、高弹性恢复率、触变性好、流动性好的优点。
Preparation method of nano calcium carbonate for low-modulus high-elasticity silicone adhesive
一种低模量高弹性硅酮胶用纳米碳酸钙的制备方法
LIANG LIGE (Autor:in) / FANG GUILI (Autor:in) / LU CHUDIAN (Autor:in) / ZHOU XUAN (Autor:in) / WU LIJUAN (Autor:in) / LI RENCAI (Autor:in) / FAN YONGBO (Autor:in) / ZHU YONG (Autor:in)
28.03.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C01F
COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
,
Verbindungen der Metalle Beryllium, Magnesium, Aluminium, Calcium, Strontium, Barium, Radium, Thorium oder der Seltenen Erden
/
B82Y
Bestimmter Gebrauch oder bestimmte Anwendung von Nanostrukturen
,
SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
/
C04B
Kalk
,
LIME
/
C09J
ADHESIVES
,
Klebstoffe
Preparation method of nano calcium carbonate for solar photovoltaic adhesive
| Europäisches Patentamt | 2024
High-purity nano calcium carbonate and preparation method thereof
| Europäisches Patentamt | 2023
Preparation method of modified nano calcium carbonate
| Europäisches Patentamt | 2020
High-elasticity-modulus grouting material and preparation method thereof
| Europäisches Patentamt | 2023
Preparation method of nano calcium carbonate feed gas
| Europäisches Patentamt | 2023