Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Grafted glass beads, preparation method, polypropylene composite material and application
The invention provides a grafted glass bead, a preparation method thereof, a polypropylene composite material and application. The grafted glass beads comprise NH2-HGS and a PPR layer coated on the surface of the NH2-HGS, and the PPR layer is mainly connected through a covalent bond formed by an amidation reaction of a methacrylic acid group grafted on ppr-g-MA and an amino group on the NH2-HGS; therefore, the PPR layer coated on the grafted glass bead is perfectly integrated with the PPR matrix, and the interface bonding of the hollow glass bead and the PPR is enhanced, so that the prepared polypropylene composite material has the characteristics of lower density, better heat-resistant stability, lower heat conductivity coefficient and the like, and also has better mechanical properties. The thermal insulation pipe prepared from the polypropylene composite material can greatly reduce heat loss and pipeline installation strength. Therefore, the invention also provides an application of the grafted glass bead in preparation of a polypropylene composite material and a thermal insulation pipe.
本发明提供了一种接枝玻璃微珠及其制备方法、聚丙烯复合材料和应用。所述接枝玻璃微珠包括NH2‑HGS和包覆在NH2‑HGS表面的PPR层，其中，所述PPR层主要通过ppr‑g‑MA上接枝的甲基丙烯酸基与所述NH2‑HGS上的氨基发生酰胺化反应形成的共价键连接；如此，该接枝玻璃微珠其上包覆的PPR层与PPR基体完好的融为一体，增强空心玻璃微珠与PPR的界面结合，使得由此制成的聚丙烯复合材料在具有较低的密度、较好的耐热稳定性、较低的导热系数等特点的同时，还具有较好的力学性能。利用该聚丙烯复合材料制成保温管材能够大幅度降低热损耗和管道安装强度。因此，本发明还提供一种上述接枝玻璃微珠在制备聚丙烯复合材料及保温管材中的应用。
Grafted glass beads, preparation method, polypropylene composite material and application
The invention provides a grafted glass bead, a preparation method thereof, a polypropylene composite material and application. The grafted glass beads comprise NH2-HGS and a PPR layer coated on the surface of the NH2-HGS, and the PPR layer is mainly connected through a covalent bond formed by an amidation reaction of a methacrylic acid group grafted on ppr-g-MA and an amino group on the NH2-HGS; therefore, the PPR layer coated on the grafted glass bead is perfectly integrated with the PPR matrix, and the interface bonding of the hollow glass bead and the PPR is enhanced, so that the prepared polypropylene composite material has the characteristics of lower density, better heat-resistant stability, lower heat conductivity coefficient and the like, and also has better mechanical properties. The thermal insulation pipe prepared from the polypropylene composite material can greatly reduce heat loss and pipeline installation strength. Therefore, the invention also provides an application of the grafted glass bead in preparation of a polypropylene composite material and a thermal insulation pipe.
本发明提供了一种接枝玻璃微珠及其制备方法、聚丙烯复合材料和应用。所述接枝玻璃微珠包括NH2‑HGS和包覆在NH2‑HGS表面的PPR层，其中，所述PPR层主要通过ppr‑g‑MA上接枝的甲基丙烯酸基与所述NH2‑HGS上的氨基发生酰胺化反应形成的共价键连接；如此，该接枝玻璃微珠其上包覆的PPR层与PPR基体完好的融为一体，增强空心玻璃微珠与PPR的界面结合，使得由此制成的聚丙烯复合材料在具有较低的密度、较好的耐热稳定性、较低的导热系数等特点的同时，还具有较好的力学性能。利用该聚丙烯复合材料制成保温管材能够大幅度降低热损耗和管道安装强度。因此，本发明还提供一种上述接枝玻璃微珠在制备聚丙烯复合材料及保温管材中的应用。
Grafted glass beads, preparation method, polypropylene composite material and application
接枝玻璃微珠及制备方法、聚丙烯复合材料和应用
ZHAO JUNSHUAI (Autor:in) / ZHANG QINGBO (Autor:in) / WANG JIANBIN (Autor:in) / ZHANG YONG (Autor:in) / CAI YAOWU (Autor:in) / SI HAORAN (Autor:in) / LU YUCHONG (Autor:in) / SHI QIANKUN (Autor:in) / ZHAN YANHUI (Autor:in) / LI YAO (Autor:in)
01.03.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C08G
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, anders erhalten als durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
/
C04B
Kalk
,
LIME
/
C08L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
,
Massen auf Basis makromolekularer Verbindungen
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