A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The invention relates to a ramie reinforced calcium silicate building material and a preparation method thereof, and belongs to the technical field of calcium silicate building materials, the ramie reinforced calcium silicate building material comprises the following raw materials by weight: 30-45 parts of quartz sand, 25-35 parts of Portland cement, 10-15 parts of kaolinite powder, 10-18 parts of modified ramie fiber, 0.5-0.8 part of perlite and 4-5 parts of a curing agent; a silane coupling agent of the polyurethane intermediate is coupled with ramie fibers, so that on one hand, the hydrophilicity of the ramie fibers is reduced, the bonding strength of the ramie fibers and a calcium silicate matrix is improved, and on the other hand, a layer of protective film can be formed on the surfaces of the ramie fibers, and hydration products of calcium silicate are isolated from the ramie fibers; the durability of the ramie fiber in the calcium silicate building material is effectively improved; and isolated double bonds and flexible long chains in the polyurethane intermediate can be embedded into interlayer areas of the calcium silicate matrix to form an ordered multi-layer structure, so that the reinforcing effect is further enhanced.
本发明涉及一种苎麻增强硅酸钙建筑材料及其制备方法，属于硅酸钙建筑材料技术领域，按照重量份计包括以下原料：石英砂30‑45份、硅酸盐水泥25‑35份、高岭石粉10‑15份、改性苎麻纤维10‑18份、珍珠岩0.5‑0.8份和固化剂4‑5份；聚氨酯中间体的硅烷偶联剂与苎麻纤维进行偶联，一方面降低苎麻纤维的亲水性，提高其与硅酸钙基体的粘结强度，另一方面能够在苎麻纤维表面形成一层保护膜，将硅酸钙的水化产物与苎麻纤维隔绝开来，有效提高苎麻纤维在硅酸钙建筑材料中的耐久性；且聚氨酯中间体中的孤立双键和柔性长链，可以嵌入硅酸钙基体的层间区域，形成有序多层结构，进一步补强其增强效果。
The invention relates to a ramie reinforced calcium silicate building material and a preparation method thereof, and belongs to the technical field of calcium silicate building materials, the ramie reinforced calcium silicate building material comprises the following raw materials by weight: 30-45 parts of quartz sand, 25-35 parts of Portland cement, 10-15 parts of kaolinite powder, 10-18 parts of modified ramie fiber, 0.5-0.8 part of perlite and 4-5 parts of a curing agent; a silane coupling agent of the polyurethane intermediate is coupled with ramie fibers, so that on one hand, the hydrophilicity of the ramie fibers is reduced, the bonding strength of the ramie fibers and a calcium silicate matrix is improved, and on the other hand, a layer of protective film can be formed on the surfaces of the ramie fibers, and hydration products of calcium silicate are isolated from the ramie fibers; the durability of the ramie fiber in the calcium silicate building material is effectively improved; and isolated double bonds and flexible long chains in the polyurethane intermediate can be embedded into interlayer areas of the calcium silicate matrix to form an ordered multi-layer structure, so that the reinforcing effect is further enhanced.
本发明涉及一种苎麻增强硅酸钙建筑材料及其制备方法，属于硅酸钙建筑材料技术领域，按照重量份计包括以下原料：石英砂30‑45份、硅酸盐水泥25‑35份、高岭石粉10‑15份、改性苎麻纤维10‑18份、珍珠岩0.5‑0.8份和固化剂4‑5份；聚氨酯中间体的硅烷偶联剂与苎麻纤维进行偶联，一方面降低苎麻纤维的亲水性，提高其与硅酸钙基体的粘结强度，另一方面能够在苎麻纤维表面形成一层保护膜，将硅酸钙的水化产物与苎麻纤维隔绝开来，有效提高苎麻纤维在硅酸钙建筑材料中的耐久性；且聚氨酯中间体中的孤立双键和柔性长链，可以嵌入硅酸钙基体的层间区域，形成有序多层结构，进一步补强其增强效果。
Ramie reinforced calcium silicate building material and preparation method thereof
一种苎麻增强硅酸钙建筑材料及其制备方法
2024-08-13
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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