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1 results about "Film base" patented technology

A film base is a transparent substrate which acts as a support medium for the photosensitive emulsion that lies atop it. Despite the numerous layers and coatings associated with the emulsion layer, the base generally accounts for the vast majority of the thickness of any given film stock. Historically there have been three major types of film base in use: nitrocellulose (cellulose nitrate), cellulose acetate (cellulose triacetate, cellulose diacetate, cellulose acetate propionate, and cellulose acetate butyrate), and polyester (polyethylene terephthalate (PET) (Kodak trade-name: ESTAR)).

Fire extinguishing air bubble film doped with powdery fire extinguishing medium and manufacturing method thereof

ActiveCN111716854AImprove high temperature resistanceStrong toughnessWrappersFlexible coversFilm baseProcess engineering
The invention discloses a fire extinguishing air bubble film doped with a powdery fire extinguishing medium and a manufacturing method thereof. The fire extinguishing air bubble film comprises a double-layer air bubble film base material and buffer air bubbles which are distributed in the double-layer air bubble film base material and are filled with the powdery fire extinguishing medium, whereinthe air bubble film base material consists of polyethylene serving as a base material and auxiliary materials according to a weight ratio. Compared with the prior art, the fire extinguishing air bubble film doped with the powdery fire extinguishing medium and the manufacturing method thereof in the invention have the following advantages: various kinds of polyethylene can be used as the base material for preparing the air bubble film; by adding a certain proportion of a flame retardant in the mixing process and filling buffering air bubbles with a large amount of the powdery fire extinguishingmedium by using a proper method, the overall high temperature resistance of the bubble film can be improved on the premise of not changing original performance, and flame retardant and fire extinguishing effects are obvious. Meanwhile, through the manufacturing method, the bubble film prepared through the method is high in toughness and not prone to damage, processing process is simple, the produced film has market competitiveness, and better benefits can be brought.
Owner:CIVIL AVIATION UNIV OF CHINA
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