Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Self-healing inorganic artificial stone as well as preparation method and application thereof
The invention discloses a self-healing inorganic artificial stone as well as a preparation method and application thereof. The self-healing inorganic artificial stone is prepared by taking aggregate, an inorganic adhesive, fly ash, a water reducing agent, a capillary crystalline additive, water, emulsion and the like as raw materials through stirring, pressing, curing, thickness fixing and polishing. According to the invention, the unreacted admixture in the raw material fly ash and the capillary crystalline component are subjected to a complexation reaction to form a silicate product so as to repair cracks possibly generated by the inorganic artificial stone; according to the emulsion, an intrinsic self-repairing high polymer material is selected, and at least one of dynamic reversible covalent bonds, disulfide bonds, multiple hydrogen bonds and supramolecular pi-pi stacks of the intrinsic self-repairing high polymer material is used for repairing internal microcracks of the inorganic artificial stone. Finally, a plurality of healing modes are utilized to achieve a synergistic effect, and the self-healing performance of the inorganic artificial stone is greatly improved, so that the stability of the material is improved, and the service life of the material is prolonged; the obvious healing effect is achieved on two crack modes of microcracks and surface cracks which cannot be seen by naked eyes.
本发明公开了一种自愈合无机人造石及其制备方法与应用，所述自愈合无机人造石以骨料、无机粘接剂、粉煤灰、减水剂、渗透结晶型添加剂、水以及乳液等为原料经过搅拌、压制、养护、定厚抛光后制得。本发明利用原料粉煤灰中未反应的掺合料与渗透结晶组分发生络合反应，形成硅酸盐类产物，来修复无机人造石可能产生的裂缝；乳液选用本征型自修复高分子材料，利用其动态可逆共价键、双硫键、多重氢键、超分子π‑π堆叠中的至少一种对无机人造石的内部微裂纹进行修补。最终，本发明利用多种愈合方式进行协同作用，大大提高无机人造石自愈合性能，从而提高材料的稳定性与使用寿命；且对无法肉眼可见的微裂纹以及表面开裂两种裂纹方式均有明显愈合效果。
Self-healing inorganic artificial stone as well as preparation method and application thereof
The invention discloses a self-healing inorganic artificial stone as well as a preparation method and application thereof. The self-healing inorganic artificial stone is prepared by taking aggregate, an inorganic adhesive, fly ash, a water reducing agent, a capillary crystalline additive, water, emulsion and the like as raw materials through stirring, pressing, curing, thickness fixing and polishing. According to the invention, the unreacted admixture in the raw material fly ash and the capillary crystalline component are subjected to a complexation reaction to form a silicate product so as to repair cracks possibly generated by the inorganic artificial stone; according to the emulsion, an intrinsic self-repairing high polymer material is selected, and at least one of dynamic reversible covalent bonds, disulfide bonds, multiple hydrogen bonds and supramolecular pi-pi stacks of the intrinsic self-repairing high polymer material is used for repairing internal microcracks of the inorganic artificial stone. Finally, a plurality of healing modes are utilized to achieve a synergistic effect, and the self-healing performance of the inorganic artificial stone is greatly improved, so that the stability of the material is improved, and the service life of the material is prolonged; the obvious healing effect is achieved on two crack modes of microcracks and surface cracks which cannot be seen by naked eyes.
本发明公开了一种自愈合无机人造石及其制备方法与应用，所述自愈合无机人造石以骨料、无机粘接剂、粉煤灰、减水剂、渗透结晶型添加剂、水以及乳液等为原料经过搅拌、压制、养护、定厚抛光后制得。本发明利用原料粉煤灰中未反应的掺合料与渗透结晶组分发生络合反应，形成硅酸盐类产物，来修复无机人造石可能产生的裂缝；乳液选用本征型自修复高分子材料，利用其动态可逆共价键、双硫键、多重氢键、超分子π‑π堆叠中的至少一种对无机人造石的内部微裂纹进行修补。最终，本发明利用多种愈合方式进行协同作用，大大提高无机人造石自愈合性能，从而提高材料的稳定性与使用寿命；且对无法肉眼可见的微裂纹以及表面开裂两种裂纹方式均有明显愈合效果。
Self-healing inorganic artificial stone as well as preparation method and application thereof
一种自愈合无机人造石及其制备方法与应用
MAO CHI (Autor:in) / LAN LIUBO (Autor:in) / DING DEZHENG (Autor:in) / LIU XIANGYANG (Autor:in) / QIN ZUKE (Autor:in) / WEI BINGJIAN (Autor:in)
12.04.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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