46results about How to "Good oxygen barrier" patented technology

The invention discloses high-transmittance temperable three-silver Low-E glass and a preparation method of same. The glass includes a glass substrate, wherein sixteen film layers are successively laminated onto the top surface of the glass substrate from bottom to top; the first film layer is a Si3N4 layer, the second film layer is a TiO2 layer, the third film layer is a NiCr layer, the fourth film layer is a silver layer, the fifth film layer is an AZO layer, the sixth film layer is a Si3N4 layer, the seventh film layer is a TiO2 layer, the eighth film layer is a NiCr layer, the ninth film layer is a silver layer, the tenth film layer is an AZO layer, the eleventh film layer is a Si3N4 layer, the twelfth film layer is a TiO2 layer, the thirteenth film layer is a NiCr layer, the fourteenthfilm layer is a silver layer, the fifteenth film layer is an AZO layer and the sixteenth film layer is a Si3N4 layer. During preparation, the sixteen film layers are formed successively through sputtering coating via a magnetron sputtering process. The Low-E glass has reasonable structural design, high transmittance, low reflection rate and radiation rate, has good mechanical processability and simple preparation method and is suitable for large-scale extensive application.

The invention discloses a method for preparing a functional edible membrane on the basis of hemi-celluloses and chitosan. The method includes (1), mixing the chitosan and acetic acid solution with each other and heating and stirring the chitosan and the acetic acid solution to obtain chitosan solution; (2), mixing the hemi-celluloses and acetic acid solution with one another and heating and stirring the hemi-celluloses and the acetic acid solution to obtain hemi-cellulose solution; (3), preparing xylooligosaccharide solution by the aid of hemi-cellulose acid hydrolysis processes; (4), mixing the hemi-celluloses and the chitosan solution with one another, adding cellulose nanometer fiber solution into the hemi-celluloses and the chitosan solution, adding the xylooligosaccharide solution prepared at the step (3) into mixed liquid, stirring the mixed liquid at the room temperature, removing insoluble impurities by means of centrifuging, and carrying out ultrasonic degassing and standing to obtain composite membrane solution; (5), placing membrane-forming solution in culture vessels, placing the culture vessels in vacuum drying tanks and carrying out drying and membrane-forming. The method has the advantages that the functional edible membrane prepared by the aid of the method is high in mechanical strength and good in oxygen barrier performance, has antibacterial properties, healthcare functions and the like, and has a good application prospect in the aspects such as food packaging and oxidation resistance.