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A platform for research: civil engineering, architecture and urbanism
Polyvinyl alcohol fiber suitable for concrete and preparation method thereof
The invention discloses a polyvinyl alcohol fiber suitable for concrete and a preparation method thereof. The preparation method comprises the following steps: dissolving a polyvinyl alcohol raw material and additives in pure water to form a polyvinyl alcohol spinning solution, and carrying out solidification molding, hygrothermal stretching and heat treatment on the polyvinyl alcohol spinning solution to obtain the polyvinyl alcohol fiber suitable for concrete, wherein the additives comprise boric acid, acetic acid, PEG2000, polyoxyethylene fatty amine ether and amide additives. The polyvinylalcohol fiber prepared by the method is high in strength, good in mechanical property and good in dispersity; the short fibers can be uniformly dispersed in the concrete material; the fiber can improve the toughness and impact strength level shock resistance of building materials, has good weather resistance, can effectively control cracks of mortar and concrete caused by plastic shrinkage, temperature change and other factors, prevents and inhibits the formation and development of the cracks, and can be widely used in concrete, cement products and other special fields.
本发明公开了一种混凝土适用型聚乙烯醇纤维及其制备方法，是将聚乙烯醇原料和添加剂溶解在纯水中，形成的聚乙烯醇纺丝原液经凝固成型、湿热拉伸和热处理，即获得混凝土适用型聚乙烯醇纤维，其中的添加剂包括硼酸、醋酸、PEG2000、聚氧乙烯脂肪胺醚和酰胺类添加剂。本发明制备得到的聚乙烯醇纤维强度高、力学性能良好、分散性好，短纤维能均一地分散在混凝土材料中，可提高建筑材料的韧性和抗冲击强度级抗震能力，而且该纤维耐气候性能良好，能有效控制砂浆和混凝土因塑性收缩及温度变化等因素引起的裂纹，防止及抑制裂缝的形成与发展，可广泛应用于混凝土、水泥制品及其它特殊领域。
Polyvinyl alcohol fiber suitable for concrete and preparation method thereof
The invention discloses a polyvinyl alcohol fiber suitable for concrete and a preparation method thereof. The preparation method comprises the following steps: dissolving a polyvinyl alcohol raw material and additives in pure water to form a polyvinyl alcohol spinning solution, and carrying out solidification molding, hygrothermal stretching and heat treatment on the polyvinyl alcohol spinning solution to obtain the polyvinyl alcohol fiber suitable for concrete, wherein the additives comprise boric acid, acetic acid, PEG2000, polyoxyethylene fatty amine ether and amide additives. The polyvinylalcohol fiber prepared by the method is high in strength, good in mechanical property and good in dispersity; the short fibers can be uniformly dispersed in the concrete material; the fiber can improve the toughness and impact strength level shock resistance of building materials, has good weather resistance, can effectively control cracks of mortar and concrete caused by plastic shrinkage, temperature change and other factors, prevents and inhibits the formation and development of the cracks, and can be widely used in concrete, cement products and other special fields.
本发明公开了一种混凝土适用型聚乙烯醇纤维及其制备方法，是将聚乙烯醇原料和添加剂溶解在纯水中，形成的聚乙烯醇纺丝原液经凝固成型、湿热拉伸和热处理，即获得混凝土适用型聚乙烯醇纤维，其中的添加剂包括硼酸、醋酸、PEG2000、聚氧乙烯脂肪胺醚和酰胺类添加剂。本发明制备得到的聚乙烯醇纤维强度高、力学性能良好、分散性好，短纤维能均一地分散在混凝土材料中，可提高建筑材料的韧性和抗冲击强度级抗震能力，而且该纤维耐气候性能良好，能有效控制砂浆和混凝土因塑性收缩及温度变化等因素引起的裂纹，防止及抑制裂缝的形成与发展，可广泛应用于混凝土、水泥制品及其它特殊领域。
Polyvinyl alcohol fiber suitable for concrete and preparation method thereof
一种混凝土适用型聚乙烯醇纤维及其制备方法
JIANG JIABAO (author) / WANG PINGLIN (author) / SHEN RUI (author) / ZHANG XIAOCHUN (author) / TIAN ZONGJIE (author) / WU YUE (author) / WU JIANJUN (author)
2020-10-16
Patent
Electronic Resource
Chinese
IPC:
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
/
C04B
Kalk
,
LIME
/
D01D
MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF MAN-MADE FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
,
Mechanische Verfahren oder Vorrichtungen für die Herstellung von produzierten Filamenten, Zwirnen, Fasern, Borsten oder Bändern
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