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431 results about "Screen protector" patented technology

A screen protector is an additional sheet of material—commonly polyurethane or laminated glass—that can be attached to the screen of an electronic device and protect it against physical damage.

High-capacity intermittent industrial wastewater microwave photocatalytic degradation device

The invention relates to a high-capacity intermittent industrial wastewater microwave photocatalytic degradation device, belonging to the technical field of wastewater treatment. The existing microwave photocatalytic degradation technology for the organic pollutant-containing industrial wastewater has the problems that microwave energy is wasted and practical single-jar wastewater treatment quantity is relatively small, and has the problem of scaling since an electrodeless ultraviolet lamp screen protector in the device is soaked in wastewater liquid by the outer side face of a quartz tube for a long term. The invention intends to solve the problems globally.In order to solve the problems, an electrodeless ultraviolet lamp is arranged in a silk screen cage-shaped nonopaque microwave restraining device made from metal material, the microwave is guided into the microwave restraining device to be restrained, the useless dissipation of the microwave can be stopped, and the designed volume of an expander can be allowed to be greatly enlarged on the basis of the structure, so that the single-jar wastewater treatment quantity of a reactor can be greatly improved. An ultrasonic transducer is attached to the outer side face of the side wall of the reactor, so that the scale can be timely removed after the high-frequency ultrasonic wave reaches up to the scale.
Owner:NINGBO UNIV

Aqueous sterilizing and blue light resisting coating for tempered glass screen protectors, and preparation method thereof

The invention relates to the field of coatings, and concretely discloses an aqueous sterilizing and blue light resisting coating for tempered glass screen protectors, and a preparation method thereof. The aqueous sterilizing and blue light resisting coating for tempered glass screen protectors comprises, by mass, 15-30 parts of nanometer glass resin, 10-30 parts of an aqueous hydroxy acrylic emulsion, 5-20 parts of amino resin, 1-5 parts of organic silicone powder, 0.1-3 parts of a colorful pigment, 0.1-1 part of colloidal silica, 1-5 parts of nanometer barium sulfate, 0.05-0.5 part of nanometer zinc oxide, 0.1-0.2 part of a pH adjusting agent, 0.3-0.5 part of a dispersant, 0.1-0.2 part of an antifoaming agent, 0.05-0.5 part of a blue light absorbent, 2-5 parts of a film filming aid, 0.3-0.5 part of a substrate wetting agent, 0.5-1.0 part of a thickener and 5-10 parts of deionized water. The content of VOCs in the aqueous sterilizing and blue light resisting coating for tempered glass screen protectors is not more than 30 g / L, and the aqueous sterilizing and blue light resisting coating for tempered glass screen protectors has the advantages of high hardness, strong adhesion, good resistance to water, an alkali, stains and weather, self-cleaning property, good scrub resistance, blue light absorption, and lasting and mild sterilization function.
Owner:HEBEI CHENYANG INDAL & TRADE GROUP CO LTD
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