A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Modified polypropylene geogrid raw material and geogrid
The invention relates to a modified polypropylene geogrid raw material and a geogrid, belongs to the technical field of civil engineering, and solves the problems that in the prior art, a beta-type nucleating agent is poor in dispersity and large in dosage, and a prepared geogrid is poor in mechanical property and large in density. The mesoporous calcium carbonate and the organic acid react to generate organic acid calcium as a beta-type nucleating agent, and the organic acid calcium is loaded on the surface of the mesoporous calcium carbonate, so that the nucleating efficiency of polypropylene is improved; the content of beta crystals is remarkably increased, meanwhile, the reinforcing and toughening effects are achieved, the two-way stretching process is facilitated, the performance of the polypropylene geogrid is improved, and the problems that an existing beta nucleating agent is poor in dispersity and large in dosage are solved. The micropores formed in the stretching process of the geogrid synergistically reduce the density of the geogrid, namely the mass per unit area. The geogrid disclosed by the invention is a three-layer composite plastic plate which is prepared by melting and extruding three layers, and the comprehensive performance of the geogrid is adjusted by utilizing polypropylene with different performances so as to adapt to different construction environments.
本发明涉及一种改性聚丙烯土工格栅原料和土工格栅，属于土木工程技术领域，解决了现有技术中β型成核剂分散性差，用量多，制成的土工格栅的力学性能差，且密度大等问题。本发明的介孔碳酸钙和有机酸进行反应生成有机酸钙作为β型成核剂，负载到介孔碳酸钙表面，提高了聚丙烯的成核效率；显著增加了β晶的含量，同时起到增强增韧的作用，利于双向拉伸过程，改善聚丙烯土工格栅的性能，并解决现有β成核剂分散性差，用量多的问题。土工格栅在拉伸过程中形成的微孔，协同降低了土工格栅的密度，即单位面积质量。本发明的土工格栅为通过三层熔融挤出制成的三层复合塑料板，利用不同性能的聚丙烯，调节土工格栅的综合性能，以适应不同的施工环境。
Modified polypropylene geogrid raw material and geogrid
The invention relates to a modified polypropylene geogrid raw material and a geogrid, belongs to the technical field of civil engineering, and solves the problems that in the prior art, a beta-type nucleating agent is poor in dispersity and large in dosage, and a prepared geogrid is poor in mechanical property and large in density. The mesoporous calcium carbonate and the organic acid react to generate organic acid calcium as a beta-type nucleating agent, and the organic acid calcium is loaded on the surface of the mesoporous calcium carbonate, so that the nucleating efficiency of polypropylene is improved; the content of beta crystals is remarkably increased, meanwhile, the reinforcing and toughening effects are achieved, the two-way stretching process is facilitated, the performance of the polypropylene geogrid is improved, and the problems that an existing beta nucleating agent is poor in dispersity and large in dosage are solved. The micropores formed in the stretching process of the geogrid synergistically reduce the density of the geogrid, namely the mass per unit area. The geogrid disclosed by the invention is a three-layer composite plastic plate which is prepared by melting and extruding three layers, and the comprehensive performance of the geogrid is adjusted by utilizing polypropylene with different performances so as to adapt to different construction environments.
本发明涉及一种改性聚丙烯土工格栅原料和土工格栅，属于土木工程技术领域，解决了现有技术中β型成核剂分散性差，用量多，制成的土工格栅的力学性能差，且密度大等问题。本发明的介孔碳酸钙和有机酸进行反应生成有机酸钙作为β型成核剂，负载到介孔碳酸钙表面，提高了聚丙烯的成核效率；显著增加了β晶的含量，同时起到增强增韧的作用，利于双向拉伸过程，改善聚丙烯土工格栅的性能，并解决现有β成核剂分散性差，用量多的问题。土工格栅在拉伸过程中形成的微孔，协同降低了土工格栅的密度，即单位面积质量。本发明的土工格栅为通过三层熔融挤出制成的三层复合塑料板，利用不同性能的聚丙烯，调节土工格栅的综合性能，以适应不同的施工环境。
Modified polypropylene geogrid raw material and geogrid
一种改性聚丙烯土工格栅原料和土工格栅
LU SHIDE (author) / LIANG XUNMEI (author) / LI KEPENG (author) / ZHAO CHUNFENG (author) / YU HUA (author) / DING XIAOLONG (author)
2023-11-10
Patent
Electronic Resource
Chinese
IPC:
C08L
COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
,
Massen auf Basis makromolekularer Verbindungen
/
B32B
LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
,
Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse
/
C08K
Verwendung von anorganischen oder nichtmakromolekularen organischen Stoffen als Zusatzstoffe
,
USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS
/
E01C
Bau von Straßen, Sportplätzen oder dgl., Decken dafür
,
CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE
/
E02D
FOUNDATIONS
,
Gründungen
Friction geogrid and its friction geogrid production method
| European Patent Office | 2020