Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of hydrophilic modified polypropylene fiber reinforced concrete material
The invention discloses a preparation method of a hydrophilic modified polypropylene fiber reinforced concrete material. The preparation method of the hydrophilic modified polypropylene fiber comprises the following steps: grafting resin acid on polypropylene through gamma ray irradiation, melting and mixing with polypropylene according to a certain proportion, extruding through a spinneret plate, cooling in a water bath, pulling up, and finally carrying out heat setting and cutting off to obtain the hydrophilic modified polypropylene fiber. The hydrophilic modified polypropylene fiber reinforced concrete material can be prepared by mixing the obtained hydrophilic modified polypropylene fiber with cement, aggregate, a superplasticizer and water according to a certain proportion. According to the method, polypropylene is subjected to hydrophilic modification by using the natural raw material resin acid, the method belongs to a green modification method, and the impact strength, flexural toughness, surface smoothness and other properties of the finally prepared concrete material are greatly improved.
本发明公开了一种亲水改性聚丙烯纤维增强混凝材料的制备方法。亲水改性聚丙烯纤维的制备方法是先将聚丙烯通过伽马射线辐照接枝树脂酸后，再与聚丙烯按照一定比例熔融混合，经喷丝板挤出，水浴冷却，牵引拉升，最后热定型，切断制得。所得亲水改性聚丙烯纤维，与水泥、骨料、高效减水剂和水按照一定比例混合，即可制备亲水改性聚丙烯纤维增强混凝土材料。该方法使用天然原料树脂酸对聚丙烯进行亲水改性，属于绿色改性方法，最终制备的混凝土材料抗冲击强度，抗弯韧性，表面光滑度等性能均得到大幅提高。
Preparation method of hydrophilic modified polypropylene fiber reinforced concrete material
The invention discloses a preparation method of a hydrophilic modified polypropylene fiber reinforced concrete material. The preparation method of the hydrophilic modified polypropylene fiber comprises the following steps: grafting resin acid on polypropylene through gamma ray irradiation, melting and mixing with polypropylene according to a certain proportion, extruding through a spinneret plate, cooling in a water bath, pulling up, and finally carrying out heat setting and cutting off to obtain the hydrophilic modified polypropylene fiber. The hydrophilic modified polypropylene fiber reinforced concrete material can be prepared by mixing the obtained hydrophilic modified polypropylene fiber with cement, aggregate, a superplasticizer and water according to a certain proportion. According to the method, polypropylene is subjected to hydrophilic modification by using the natural raw material resin acid, the method belongs to a green modification method, and the impact strength, flexural toughness, surface smoothness and other properties of the finally prepared concrete material are greatly improved.
本发明公开了一种亲水改性聚丙烯纤维增强混凝材料的制备方法。亲水改性聚丙烯纤维的制备方法是先将聚丙烯通过伽马射线辐照接枝树脂酸后，再与聚丙烯按照一定比例熔融混合，经喷丝板挤出，水浴冷却，牵引拉升，最后热定型，切断制得。所得亲水改性聚丙烯纤维，与水泥、骨料、高效减水剂和水按照一定比例混合，即可制备亲水改性聚丙烯纤维增强混凝土材料。该方法使用天然原料树脂酸对聚丙烯进行亲水改性，属于绿色改性方法，最终制备的混凝土材料抗冲击强度，抗弯韧性，表面光滑度等性能均得到大幅提高。
Preparation method of hydrophilic modified polypropylene fiber reinforced concrete material
一种亲水改性聚丙烯纤维增强混凝土材料的制备方法
JIANG YANYAN (Autor:in) / HUANG WEI (Autor:in) / WENG WEI (Autor:in) / DONG WENYONG (Autor:in) / ZUO QIANG (Autor:in)
03.05.2024
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
/
C08F
MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
,
Makromolekulare Verbindungen, erhalten durch Reaktionen, an denen nur ungesättigte Kohlenstoff-Kohlenstoff-Bindungen beteiligt sind
/
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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