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A platform for research: civil engineering, architecture and urbanism
PU/Si3N4 electret nanofiber anti-haze window screen and preparation method thereof
The invention discloses a PU/Si3N4 electret nanofiber anti-haze window screen and a preparation method thereof. DMF/THF(1:1) is adopted as a solvent, the solvent and Si3N4 electret nano partilces areblended and prepared into a spinning precursor solution under the condition of ultrasonic dispersion, and then PU is added to be prepared into a spinning solution; and by means of an electrostatic spinning method, PU/Si3N4 electret nanofibers are spun on high-mesh dacron non-woven fabrics, then the high-mesh dacron non-woven fabrics and PP melt-blown non-woven fabrics are subjected to an ultrasonic bonding process, and raw materials for the anti-haze window screen are obtained. The composite material has a filtering effect reaching up to 85%, the filtering performance is excellent, the flow resistance is low, the air permeability is good, and the light transmission performance is good. The average diameter of the PU/Si3N4 electret nanofibers prepared through electrostatic spinning is about150 nm, the strength is high, the filtering effect is good, and the PU/Si3N4 electret nanofibers can be attached to the macromolecular non-woven fabrics easily. The whole material is simple in preparation process, convenient to operate and capable of being produced in batches. A new thought is provided for the field of haze air filtering.
本发明公开了一种PU/SiN驻极纳米纤维防雾霾窗纱及其制备方法。以DMF/THF(1:1)作为溶剂，在超声分散条件下与SiN驻极纳米粒子共混配成纺丝前驱液，然后再加入PU配置成纺丝液，通过静电纺丝的方法，将PU/SiN驻极纳米纤维纺制到黑色高目数的涤纶无纺布上，而后与PP熔喷无纺布经过超声波粘合工艺，获得防雾霾纱窗所用原料。该复合材料具有高达85%的过滤效果，不仅过滤性能优良，流阻低，透气性好而且透光性好。通过静电纺丝制备PU/SiN驻极纳米纤维平均直径在150nm左右，强度高、过滤效果好，容易与高分子无纺布贴服。整个材料的制备流程简单，操作方便，可批量化生产。这给雾霾空气过滤领域提供了一种新思路。
PU/Si3N4 electret nanofiber anti-haze window screen and preparation method thereof
The invention discloses a PU/Si3N4 electret nanofiber anti-haze window screen and a preparation method thereof. DMF/THF(1:1) is adopted as a solvent, the solvent and Si3N4 electret nano partilces areblended and prepared into a spinning precursor solution under the condition of ultrasonic dispersion, and then PU is added to be prepared into a spinning solution; and by means of an electrostatic spinning method, PU/Si3N4 electret nanofibers are spun on high-mesh dacron non-woven fabrics, then the high-mesh dacron non-woven fabrics and PP melt-blown non-woven fabrics are subjected to an ultrasonic bonding process, and raw materials for the anti-haze window screen are obtained. The composite material has a filtering effect reaching up to 85%, the filtering performance is excellent, the flow resistance is low, the air permeability is good, and the light transmission performance is good. The average diameter of the PU/Si3N4 electret nanofibers prepared through electrostatic spinning is about150 nm, the strength is high, the filtering effect is good, and the PU/Si3N4 electret nanofibers can be attached to the macromolecular non-woven fabrics easily. The whole material is simple in preparation process, convenient to operate and capable of being produced in batches. A new thought is provided for the field of haze air filtering.
本发明公开了一种PU/SiN驻极纳米纤维防雾霾窗纱及其制备方法。以DMF/THF(1:1)作为溶剂，在超声分散条件下与SiN驻极纳米粒子共混配成纺丝前驱液，然后再加入PU配置成纺丝液，通过静电纺丝的方法，将PU/SiN驻极纳米纤维纺制到黑色高目数的涤纶无纺布上，而后与PP熔喷无纺布经过超声波粘合工艺，获得防雾霾纱窗所用原料。该复合材料具有高达85%的过滤效果，不仅过滤性能优良，流阻低，透气性好而且透光性好。通过静电纺丝制备PU/SiN驻极纳米纤维平均直径在150nm左右，强度高、过滤效果好，容易与高分子无纺布贴服。整个材料的制备流程简单，操作方便，可批量化生产。这给雾霾空气过滤领域提供了一种新思路。
PU/Si3N4 electret nanofiber anti-haze window screen and preparation method thereof
一种PU/SiN驻极纳米纤维防雾霾窗纱及其制备方法
LIU FAN (author) / SHAO WEILI (author) / HE JIANXIN (author) / LIAO XI (author) / LU TONG (author) / LI MENGYING (author)
2020-04-10
Patent
Electronic Resource
Chinese
IPC:
E06B
Feste oder bewegliche Abschlüsse für Öffnungen in Bauwerken, Fahrzeugen, Zäunen oder ähnlichen Einfriedungen allgemein, z.B. Türen, Fenster, Läden, Tore
,
FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES, OR LIKE ENCLOSURES, IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
/
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
/
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
/
D04H
Herstellen von flächigem Textilgut, z.B. aus Fasern oder fadenförmigem Material
,
MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL
Anti-haze ventilated window screen processing technology and anti-haze ventilated window screen
| European Patent Office | 2016