Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-strength and high-toughness thin spraying material
The invention discloses a high-strength and high-toughness thin spraying material, and relates to the technical field of coal mine tunnel reinforcement. The high-strength and high-toughness thin spraying material comprises the following raw materials in parts by weight: 20-30 parts of cement, 30-50 parts of filler, 10-30 parts of polymer emulsion and 0.5-2 parts of auxiliaries, the preparation method of the polymer emulsion comprises the following steps: S1, carrying out a reaction on cellulose, glacial acetic acid and acetic anhydride to obtain pretreated cellulose; s2, the pretreated cellulose, n-butyric acid and acetic anhydride react to obtain modified cellulose; and S3, adding the pretreated cellulose into the prepared core-shell emulsion polymer to obtain the polymer emulsion. The thin spraying material prepared by the invention has high strength and toughness and high viscosity.
本发明公开了高强韧性薄喷材料，涉及煤矿巷道加固技术领域。本发明高强韧性薄喷材料包括如下重量百分比的原料：20‑30重量份水泥、30‑50重量份填料、10‑30重量份聚合物乳液、0.5‑2重量份助剂；聚合物乳液的制备方法包括如下步骤：S1：将纤维素、冰醋酸、乙酐反应得到预处理纤维素；S2：预处理纤维素、正丁酸、醋酐反应得到改性纤维素；S3：制备核壳乳液聚合物中添加预处理纤维素得到聚合物乳液。本申请制备的薄喷材料具有高强韧性和高粘性。
High-strength and high-toughness thin spraying material
The invention discloses a high-strength and high-toughness thin spraying material, and relates to the technical field of coal mine tunnel reinforcement. The high-strength and high-toughness thin spraying material comprises the following raw materials in parts by weight: 20-30 parts of cement, 30-50 parts of filler, 10-30 parts of polymer emulsion and 0.5-2 parts of auxiliaries, the preparation method of the polymer emulsion comprises the following steps: S1, carrying out a reaction on cellulose, glacial acetic acid and acetic anhydride to obtain pretreated cellulose; s2, the pretreated cellulose, n-butyric acid and acetic anhydride react to obtain modified cellulose; and S3, adding the pretreated cellulose into the prepared core-shell emulsion polymer to obtain the polymer emulsion. The thin spraying material prepared by the invention has high strength and toughness and high viscosity.
本发明公开了高强韧性薄喷材料，涉及煤矿巷道加固技术领域。本发明高强韧性薄喷材料包括如下重量百分比的原料：20‑30重量份水泥、30‑50重量份填料、10‑30重量份聚合物乳液、0.5‑2重量份助剂；聚合物乳液的制备方法包括如下步骤：S1：将纤维素、冰醋酸、乙酐反应得到预处理纤维素；S2：预处理纤维素、正丁酸、醋酐反应得到改性纤维素；S3：制备核壳乳液聚合物中添加预处理纤维素得到聚合物乳液。本申请制备的薄喷材料具有高强韧性和高粘性。
High-strength and high-toughness thin spraying material
高强韧性薄喷材料
CAI CHANGHUI (Autor:in) / CHEN MAOWU (Autor:in)
25.08.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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