Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Light thermal insulation composite foam concrete and preparation method thereof
The invention discloses light thermal insulation composite foam concrete and a preparation method thereof, and relates to the technical field of concrete materials. The preparation method comprises the following steps: reacting polypropylene fibers with acrylic acid under the catalysis of benzoyl peroxide to prepare modified polypropylene fibers; then, mixinggraphene oxide withcarboxyl carbon nanotubes; reacting with polyethylene polyamine to prepareamodified graphene oxide gel; secondly, mixing acrylic acid with acrylamide; under the action of a catalyst, preparinga base material; mixing andswelling the base material and the modified graphene oxide gel, adding sodium bicarbonate, carrying out rotary evaporation concentration and freeze drying to obtain a composite foaming agent, mixingthe composite foaming agent with cement, adding a coagulant, a waterproof agent, fly ash, modified polypropylene fibers and sand, and stirring and mixing to obtain the lightweight thermal insulation composite foam concrete. The light thermal insulation composite foam concrete prepared by the invention has relatively small density and good thermal insulation performance, and the compressive strength of the light thermal insulation composite foam concrete is slightly different from that of common foam concrete.
本发明公开了一种轻质保温复合泡沫混凝土及其制备方法，涉及混凝土材料技术领域。本发明先用聚丙烯纤维与丙烯酸在过氧化苯甲酰的催化下反应制得改性聚丙烯纤维，然后，将氧化石墨烯和羧基碳纳米管混合，并与多乙烯多胺反应，制得改性氧化石墨烯凝胶，其次将丙烯酸与丙烯酰胺混合，在催化剂的作用下，制得基材，将基材与改性氧化石墨烯凝胶混合溶胀，并加入碳酸氢钠后，旋蒸浓缩，冷冻干燥，制得复合发泡剂，最后，将复合发泡剂与水泥混合，并加入促凝剂、防水剂、粉煤灰、改性聚丙烯纤维和砂，搅拌混合，得轻质保温复合泡沫混凝土。本发明制备的轻质保温复合泡沫混凝具有较小的密度和良好的保温性能，并且抗压强度与普通泡沫混凝土相差不大。
Light thermal insulation composite foam concrete and preparation method thereof
The invention discloses light thermal insulation composite foam concrete and a preparation method thereof, and relates to the technical field of concrete materials. The preparation method comprises the following steps: reacting polypropylene fibers with acrylic acid under the catalysis of benzoyl peroxide to prepare modified polypropylene fibers; then, mixinggraphene oxide withcarboxyl carbon nanotubes; reacting with polyethylene polyamine to prepareamodified graphene oxide gel; secondly, mixing acrylic acid with acrylamide; under the action of a catalyst, preparinga base material; mixing andswelling the base material and the modified graphene oxide gel, adding sodium bicarbonate, carrying out rotary evaporation concentration and freeze drying to obtain a composite foaming agent, mixingthe composite foaming agent with cement, adding a coagulant, a waterproof agent, fly ash, modified polypropylene fibers and sand, and stirring and mixing to obtain the lightweight thermal insulation composite foam concrete. The light thermal insulation composite foam concrete prepared by the invention has relatively small density and good thermal insulation performance, and the compressive strength of the light thermal insulation composite foam concrete is slightly different from that of common foam concrete.
本发明公开了一种轻质保温复合泡沫混凝土及其制备方法，涉及混凝土材料技术领域。本发明先用聚丙烯纤维与丙烯酸在过氧化苯甲酰的催化下反应制得改性聚丙烯纤维，然后，将氧化石墨烯和羧基碳纳米管混合，并与多乙烯多胺反应，制得改性氧化石墨烯凝胶，其次将丙烯酸与丙烯酰胺混合，在催化剂的作用下，制得基材，将基材与改性氧化石墨烯凝胶混合溶胀，并加入碳酸氢钠后，旋蒸浓缩，冷冻干燥，制得复合发泡剂，最后，将复合发泡剂与水泥混合，并加入促凝剂、防水剂、粉煤灰、改性聚丙烯纤维和砂，搅拌混合，得轻质保温复合泡沫混凝土。本发明制备的轻质保温复合泡沫混凝具有较小的密度和良好的保温性能，并且抗压强度与普通泡沫混凝土相差不大。
Light thermal insulation composite foam concrete and preparation method thereof
一种轻质保温复合泡沫混凝土及其制备方法
WANG XINYANG (Autor:in)
01.09.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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