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A platform for research: civil engineering, architecture and urbanism
Preparation method of calcium carbonate coated modified waste rubber powder
The invention discloses a preparation method of calcium carbonate coated modified waste rubber powder, and belongs to the technical field of high polymer material modification. The method comprises the following steps: (1) performing surface clear water treatment of waste rubber powder; (2) treating the surface of the waste rubber powder with an acidic solution; (3) treating the surface of the waste rubber powder with a coupling agent; (4) coating the surface of the waste rubber powder with calcium carbonate; and (5) crushing the modified waste rubber powder aggregate. Through a multi-stage treatment process, the interface compatibility and the interface bonding strength of the obtained modified waste rubber powder and cement paste are remarkably improved; in addition, a composite structure with the organic waste rubber powder as a core and inorganic calcium carbonate as a shell is formed, so that the mechanical property and durability of the waste rubber powder are obviously improved.
本发明公开了属于高分子材料改性技术领域的一种碳酸钙包覆改性废旧橡胶粉的制备方法。该方法包括以下步骤：(1)废旧橡胶粉表面清水处理；(2)废旧橡胶粉表面酸性溶液处理；(3)废旧橡胶粉表面偶联剂处理；(4)废旧橡胶粉表面碳酸钙包覆处理；(5)改性废旧橡胶粉团聚体破碎处理。本发明经多级处理工艺，得到的改性废旧橡胶粉与水泥浆体界面相容性和界面粘接强度显著提升；而且形成的以有机废旧橡胶粉为核、无机碳酸钙为壳的复合结构，明显提高废旧橡胶粉的力学性能和耐久性。
Preparation method of calcium carbonate coated modified waste rubber powder
The invention discloses a preparation method of calcium carbonate coated modified waste rubber powder, and belongs to the technical field of high polymer material modification. The method comprises the following steps: (1) performing surface clear water treatment of waste rubber powder; (2) treating the surface of the waste rubber powder with an acidic solution; (3) treating the surface of the waste rubber powder with a coupling agent; (4) coating the surface of the waste rubber powder with calcium carbonate; and (5) crushing the modified waste rubber powder aggregate. Through a multi-stage treatment process, the interface compatibility and the interface bonding strength of the obtained modified waste rubber powder and cement paste are remarkably improved; in addition, a composite structure with the organic waste rubber powder as a core and inorganic calcium carbonate as a shell is formed, so that the mechanical property and durability of the waste rubber powder are obviously improved.
本发明公开了属于高分子材料改性技术领域的一种碳酸钙包覆改性废旧橡胶粉的制备方法。该方法包括以下步骤：(1)废旧橡胶粉表面清水处理；(2)废旧橡胶粉表面酸性溶液处理；(3)废旧橡胶粉表面偶联剂处理；(4)废旧橡胶粉表面碳酸钙包覆处理；(5)改性废旧橡胶粉团聚体破碎处理。本发明经多级处理工艺，得到的改性废旧橡胶粉与水泥浆体界面相容性和界面粘接强度显著提升；而且形成的以有机废旧橡胶粉为核、无机碳酸钙为壳的复合结构，明显提高废旧橡胶粉的力学性能和耐久性。
Preparation method of calcium carbonate coated modified waste rubber powder
一种碳酸钙包覆改性废旧橡胶粉的制备方法
SHU XINGWANG (author) / YUAN GUOHUA (author) / ZHANG RUIBIN (author) / WANG JUN (author) / TAO BIN (author) / JIANG JINGWEI (author) / ZHU JIANG (author) / CAI LINA (author) / LIN HAO (author) / LI DENGHUA (author)
2021-12-03
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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