Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Fiber-reinforced negative carbon type composite material and preparation method thereof
The invention discloses a fiber reinforced negative carbon type composite material, which is prepared from the following ingredients in parts by weight: 50 to 130 parts of vaterite type calcium carbonate, 0.2 to 2.5 parts of magnesium salt, 1.0 to 4.5 parts of strontium salt, 10 to 70 parts of water, 0.03 to 4 parts of polyvinyl alcohol and 0.1 to 5 parts of superfine fibers. The preparation method comprises the following steps: dissolving magnesium salt and strontium salt in water, then adding polyvinyl alcohol, and stirring and dissolving at 30-95 DEG C to obtain a homogeneous mixed solution; adding vaterite type calcium carbonate into the mixed solution, stirring for 1-3 minutes until a slurry state appears, then adding superfine fibers, and continuously stirring for 3-5 minutes to obtain slurry in which the fibers are uniformly dispersed; and pouring the slurry into a mold for molding, carrying out steam curing at 50-90 DEG C for 1-8 hours, demolding, and drying at 90-130 DEG C for 8-20 hours to obtain the fiber-reinforced negative carbon type composite material. The polyvinyl alcohol is added in the forming and stirring process to adjust the viscosity of the system, so that high dispersion of fibers is realized, the environmental protection characteristic of the negative carbon type composite material is maintained, the mechanical property of the negative carbon type composite material is remarkably improved, and the application range of the negative carbon type composite material in the fields of buildings and engineering is widened.
本发明公开了一种纤维增强负碳型复合材料，组成按重量份数计如下：球霰石型碳酸钙50～130份，镁盐0.2～2.5份，锶盐1.0～4.5份，水10～70份，聚乙烯醇0.03～4份，超细纤维0.1～5份；将镁盐和锶盐溶于水中，然后加入聚乙烯醇在30～95℃下搅拌溶解，获得均质混合溶液；将球霰石型碳酸钙加入所述混合溶液中，搅拌1～3min至出现浆体状态，然后加入超细纤维，继续搅拌3～5min获得纤维均匀分散的浆体；将上述浆体浇筑至模具中成型，50～90℃条件下蒸汽养护1～8h后脱模，置于90～130℃干燥8～20h即得到纤维增强负碳型符合材料；本发明通过在成型搅拌过程中加入聚乙烯醇调节体系粘度实现了纤维的高度分散，在保持负碳型复合材料环保特性的同时，显著提升其力学性能，拓宽其在建筑和工程领域的应用范围。
Fiber-reinforced negative carbon type composite material and preparation method thereof
The invention discloses a fiber reinforced negative carbon type composite material, which is prepared from the following ingredients in parts by weight: 50 to 130 parts of vaterite type calcium carbonate, 0.2 to 2.5 parts of magnesium salt, 1.0 to 4.5 parts of strontium salt, 10 to 70 parts of water, 0.03 to 4 parts of polyvinyl alcohol and 0.1 to 5 parts of superfine fibers. The preparation method comprises the following steps: dissolving magnesium salt and strontium salt in water, then adding polyvinyl alcohol, and stirring and dissolving at 30-95 DEG C to obtain a homogeneous mixed solution; adding vaterite type calcium carbonate into the mixed solution, stirring for 1-3 minutes until a slurry state appears, then adding superfine fibers, and continuously stirring for 3-5 minutes to obtain slurry in which the fibers are uniformly dispersed; and pouring the slurry into a mold for molding, carrying out steam curing at 50-90 DEG C for 1-8 hours, demolding, and drying at 90-130 DEG C for 8-20 hours to obtain the fiber-reinforced negative carbon type composite material. The polyvinyl alcohol is added in the forming and stirring process to adjust the viscosity of the system, so that high dispersion of fibers is realized, the environmental protection characteristic of the negative carbon type composite material is maintained, the mechanical property of the negative carbon type composite material is remarkably improved, and the application range of the negative carbon type composite material in the fields of buildings and engineering is widened.
本发明公开了一种纤维增强负碳型复合材料，组成按重量份数计如下：球霰石型碳酸钙50～130份，镁盐0.2～2.5份，锶盐1.0～4.5份，水10～70份，聚乙烯醇0.03～4份，超细纤维0.1～5份；将镁盐和锶盐溶于水中，然后加入聚乙烯醇在30～95℃下搅拌溶解，获得均质混合溶液；将球霰石型碳酸钙加入所述混合溶液中，搅拌1～3min至出现浆体状态，然后加入超细纤维，继续搅拌3～5min获得纤维均匀分散的浆体；将上述浆体浇筑至模具中成型，50～90℃条件下蒸汽养护1～8h后脱模，置于90～130℃干燥8～20h即得到纤维增强负碳型符合材料；本发明通过在成型搅拌过程中加入聚乙烯醇调节体系粘度实现了纤维的高度分散，在保持负碳型复合材料环保特性的同时，显著提升其力学性能，拓宽其在建筑和工程领域的应用范围。
Fiber-reinforced negative carbon type composite material and preparation method thereof
一种纤维增强负碳型复合材料及其制备方法
LI YEQING (Autor:in) / WAN DAWEI (Autor:in) / RAO MEI (Autor:in) / JU XINJIANG (Autor:in) / YU SONGBAI (Autor:in)
10.12.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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