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Impermeable low-shrinkage inorganic coating and preparation method thereof
The invention discloses an impervious low-shrinkage inorganic coating and a preparation method thereof. The impervious low-shrinkage inorganic coating comprises the following components in parts by mass: 40-60 parts of a cement material; 15-30 parts of an active mixed material; 5 to 15 parts of gypsum; 5 to 15 parts of talcum powder; 0-2 parts of glyceryl stearate; and 4.7 to 6.7 parts of an additive. Green inorganic materials are selected, the characteristics that low-heat Portland cement is slow in hydration, high-magnesium low-heat Portland cement is slightly expanded, and ettringite products formed between gypsum and cement hydration products are slightly expanded are combined, the problem of material shrinkage is relieved through slight expansion, and a compact structure is formed; and glyceryl stearate is subjected to a saponification reaction under an alkaline condition, so that the hydrophobic anti-seepage property is achieved.
本发明公开了一种抗渗低收缩无机涂料及其制备方法，所述抗渗低收缩无机涂料包括按质量份数计的水泥材料40～60份；活性混合材料15～30份；石膏5～15份；滑石粉5～15份；硬脂酸甘油酯0～2份；外加剂4.7～6.7份。本发明选取绿色无机材料，结合低热硅酸盐水泥水化慢、高镁低热硅酸盐水泥微膨胀以及石膏与水泥水化产物间形成的钙矾石类产物微膨胀的特点，以微膨胀缓解材料收缩问题，使其形成致密结构，并通过硬脂酸甘油酯在碱性条件下发生皂化反应，使其具备疏水防渗特性。
Impermeable low-shrinkage inorganic coating and preparation method thereof
The invention discloses an impervious low-shrinkage inorganic coating and a preparation method thereof. The impervious low-shrinkage inorganic coating comprises the following components in parts by mass: 40-60 parts of a cement material; 15-30 parts of an active mixed material; 5 to 15 parts of gypsum; 5 to 15 parts of talcum powder; 0-2 parts of glyceryl stearate; and 4.7 to 6.7 parts of an additive. Green inorganic materials are selected, the characteristics that low-heat Portland cement is slow in hydration, high-magnesium low-heat Portland cement is slightly expanded, and ettringite products formed between gypsum and cement hydration products are slightly expanded are combined, the problem of material shrinkage is relieved through slight expansion, and a compact structure is formed; and glyceryl stearate is subjected to a saponification reaction under an alkaline condition, so that the hydrophobic anti-seepage property is achieved.
本发明公开了一种抗渗低收缩无机涂料及其制备方法，所述抗渗低收缩无机涂料包括按质量份数计的水泥材料40～60份；活性混合材料15～30份；石膏5～15份；滑石粉5～15份；硬脂酸甘油酯0～2份；外加剂4.7～6.7份。本发明选取绿色无机材料，结合低热硅酸盐水泥水化慢、高镁低热硅酸盐水泥微膨胀以及石膏与水泥水化产物间形成的钙矾石类产物微膨胀的特点，以微膨胀缓解材料收缩问题，使其形成致密结构，并通过硬脂酸甘油酯在碱性条件下发生皂化反应，使其具备疏水防渗特性。
Impermeable low-shrinkage inorganic coating and preparation method thereof
一种抗渗低收缩无机涂料及其制备方法
ZHANG YUQING (author) / XIA YANQING (author) / LIANG ZHIYUAN (author)
2024-11-12
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
| European Patent Office | 2021