Light super fine glass wool non-woven felt and manufacturing method thereof

Abstract

The invention discloses light super fine glass wool non-woven felt and a manufacturing method of the felt. The light non-woven flat is of a laminated structure and is excellent in rebound resilience and flexibility. The manufacturing steps mainly include rough opening, fine opening, airflow netting, atomization glue spraying, curing and edge cutting. The light super fine glass wool non-woven felt and the manufacturing method of the felt have the advantages that the glass wool felt is made with the airflow netting method which takes the place of a traditional wet method and a traditional eccentric spraying and blowing method for manufacturing the glass wool felt, and the super thin glass wool felt super low in unit weight can be obtained. The surface of the product is even and smooth, the damage rate of fibers is small, netting is even, the fibers are distributed in three dimensions, and the product is excellent in sound absorbing and heat insulating performance and capable of being widely used as heat-preserving materials in the high cutting-edge field of large airplanes, large carrying devices, ships, high-speed rails and the like. According to the light super fine glass wool non-woven felt and the manufacturing method of the felt, the processing process is easy, the rate of finished products is high, cost is low, sources of raw materials are rich, and good economic benefits and good social benefits can be achieved.

Description

technical field [0001] The invention relates to a glass wool lightweight felt and a preparation method thereof, in particular to an ultrafine glass wool non-woven light weight felt and a preparation method thereof. Background technique [0002] Glass wool felt has excellent thermal insulation and sound absorption properties, and is widely used in various industries, especially for thermal insulation and sound insulation of interlayers such as factories, automobiles, and high-speed rail. [0003] The US patent "Low Density Non-Woven Glass Fiber Blanket" (Patent No. US 2004 / 0224594A1) mentions a wet method of felting. After mixing the slurry containing glass fiber, adding additives to adjust the pH value, collecting cotton, drying in an oven, etc., the wet glass fiber felt is prepared. Although the wet-process glass wool felt has good uniformity, its bulk density is too large and both are 150kg / m 3 Above, can not satisfy preparation lightweight glass wool felt. [0004] The...

AI Technical Summary

Problems solved by technology

The glass wool felt prepared by the centrifugal blowing method has good uniformity for high bulk density, but poor uniformity for low bulk density, which cannot meet the needs of lightweight glass wool felt

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