Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-performance polyformaldehyde fiber for concrete and preparation method thereof
The invention provides a high-performance polyformaldehyde fiber for concrete and a preparation method thereof, and belongs to the technical field of high polymer material processing, and the preparation method is characterized in that polyformaldehyde and polyamide with good compatibility with polyformaldehyde are blended to research and prepare polyformaldehyde/polyamide composite fiber, and then high-adhesion polydopamine is used as a bridging molecule to prepare the high-performance polyformaldehyde fiber for concrete. Graphene nanosheets are grafted to the surfaces of polyformaldehyde-based composite fibers, so that the interface action between the polyformaldehyde-based composite fibers and concrete is enhanced, a relatively strong mechanical meshing action between interfaces is formed, and meanwhile, the compressive strength of the polyformaldehyde-based composite fibers reinforced concrete is improved by utilizing the highly-enhanced characteristic of graphene.
本发明提供了一种混凝土用高性能聚甲醛纤维及其制备方法，属于高分子材料加工领域涉及技术领域，其特点是：将聚甲醛同与其相容性较好的聚酰胺共混，研究制备聚甲醛/聚酰胺复合纤维，进而以高粘附性聚多巴胺为桥接分子，将石墨烯纳米片接枝于聚甲醛基复合纤维表面，以增强其与混凝土的界面作用，形成界面间较强机械啮合作用，同时利用石墨烯高度增强特性，提高聚甲醛纤维增强混凝土的抗压强度。
High-performance polyformaldehyde fiber for concrete and preparation method thereof
The invention provides a high-performance polyformaldehyde fiber for concrete and a preparation method thereof, and belongs to the technical field of high polymer material processing, and the preparation method is characterized in that polyformaldehyde and polyamide with good compatibility with polyformaldehyde are blended to research and prepare polyformaldehyde/polyamide composite fiber, and then high-adhesion polydopamine is used as a bridging molecule to prepare the high-performance polyformaldehyde fiber for concrete. Graphene nanosheets are grafted to the surfaces of polyformaldehyde-based composite fibers, so that the interface action between the polyformaldehyde-based composite fibers and concrete is enhanced, a relatively strong mechanical meshing action between interfaces is formed, and meanwhile, the compressive strength of the polyformaldehyde-based composite fibers reinforced concrete is improved by utilizing the highly-enhanced characteristic of graphene.
本发明提供了一种混凝土用高性能聚甲醛纤维及其制备方法，属于高分子材料加工领域涉及技术领域，其特点是：将聚甲醛同与其相容性较好的聚酰胺共混，研究制备聚甲醛/聚酰胺复合纤维，进而以高粘附性聚多巴胺为桥接分子，将石墨烯纳米片接枝于聚甲醛基复合纤维表面，以增强其与混凝土的界面作用，形成界面间较强机械啮合作用，同时利用石墨烯高度增强特性，提高聚甲醛纤维增强混凝土的抗压强度。
High-performance polyformaldehyde fiber for concrete and preparation method thereof
一种混凝土用高性能聚甲醛纤维及其制备方法
ZHANG YANMEI (Autor:in) / YE LIN (Autor:in) / LOU LANTING (Autor:in) / ZHAO XIAOWEN (Autor:in) / SHI JIAXIN (Autor:in) / ZHANG XIANG (Autor:in)
03.02.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
D06M
Behandeln von Fasern, Fäden, Garnen, Textilgut, Federn oder aus solchen Materialien hergestelltem Fasergut, soweit nicht anderweitig in Klasse D06 vorgesehen
,
TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
/
C04B
Kalk
,
LIME
/
D01F
Chemische Gesichtspunkte bei der Herstellung von produzierten Filamenten, Zwirnen, Fasern, Borsten oder Bändern
,
CHEMICAL FEATURES IN THE MANUFACTURE OF MAN-MADE FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
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