Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Hydroxypropyl methyl cellulose modified additive for plastering gypsum
The invention relates to a hydroxypropyl methyl cellulose modified additive for plastering gypsum. Belongs to the technical field of building materials. According to the scheme, the hydroxypropyl methyl cellulose modified additive for the plastering gypsum is prepared by uniformly mixing raw materials; the raw materials comprise the following components in parts by mass: 73-83 parts of hydroxypropyl methyl cellulose, 7-12 parts of polyanionic cellulose sodium, 8-14 parts of a thixotropic agent and 1-2 parts of a retarder. By mixing the hydroxypropyl methyl cellulose, the polyanionic cellulose sodium PAC, the thixotropic agent and the retarder, the water-retaining property of the modified hydroxypropyl methyl cellulose is improved, and the workability of the gypsum mortar is improved, so that the constructability of the gypsum mortar is improved; due to the good water-retaining property, the semi-hydrated gypsum has enough time to be cured into dihydrate gypsum, the adhesive force between the gypsum and a base material is improved, and the bonding strength of the light plastering gypsum is enhanced.
本发明涉及一种抹灰石膏用羟丙基甲基纤维素改性添加剂；属于建筑材料技术领域。本发明方案中，抹灰石膏用羟丙基甲基纤维素改性添加剂由原料混合均匀后制得；所述原料包括以下质量份的组分：羟丙基甲基纤维素73～83、聚阴离子纤维素钠7～12、触变剂8～14、缓凝剂1～2。本发明通过羟丙基甲基纤维素、聚阴离子纤维素钠PAC、触变剂和缓凝剂的混合，提高了改性羟丙基甲基纤维素的保水性，改善了石膏砂浆的和易性，从而提高石膏砂浆的施工性；良好的保水性使半水石膏有足够的时间固化成二水石膏，提高石膏与基材的附着力，增强轻质抹灰石膏的粘接强度。
Hydroxypropyl methyl cellulose modified additive for plastering gypsum
The invention relates to a hydroxypropyl methyl cellulose modified additive for plastering gypsum. Belongs to the technical field of building materials. According to the scheme, the hydroxypropyl methyl cellulose modified additive for the plastering gypsum is prepared by uniformly mixing raw materials; the raw materials comprise the following components in parts by mass: 73-83 parts of hydroxypropyl methyl cellulose, 7-12 parts of polyanionic cellulose sodium, 8-14 parts of a thixotropic agent and 1-2 parts of a retarder. By mixing the hydroxypropyl methyl cellulose, the polyanionic cellulose sodium PAC, the thixotropic agent and the retarder, the water-retaining property of the modified hydroxypropyl methyl cellulose is improved, and the workability of the gypsum mortar is improved, so that the constructability of the gypsum mortar is improved; due to the good water-retaining property, the semi-hydrated gypsum has enough time to be cured into dihydrate gypsum, the adhesive force between the gypsum and a base material is improved, and the bonding strength of the light plastering gypsum is enhanced.
本发明涉及一种抹灰石膏用羟丙基甲基纤维素改性添加剂；属于建筑材料技术领域。本发明方案中，抹灰石膏用羟丙基甲基纤维素改性添加剂由原料混合均匀后制得；所述原料包括以下质量份的组分：羟丙基甲基纤维素73～83、聚阴离子纤维素钠7～12、触变剂8～14、缓凝剂1～2。本发明通过羟丙基甲基纤维素、聚阴离子纤维素钠PAC、触变剂和缓凝剂的混合，提高了改性羟丙基甲基纤维素的保水性，改善了石膏砂浆的和易性，从而提高石膏砂浆的施工性；良好的保水性使半水石膏有足够的时间固化成二水石膏，提高石膏与基材的附着力，增强轻质抹灰石膏的粘接强度。
Hydroxypropyl methyl cellulose modified additive for plastering gypsum
一种抹灰石膏用羟丙基甲基纤维素改性添加剂
QIAN HAIPING (Autor:in) / SOGAWA KEIKO (Autor:in)
04.07.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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