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2418results about How to "Increase polarity" patented technology

Preparation method of semi-interpenetrating network polymer gel electrolyte membrane

The invention provides a preparation method of a semi-interpenetrating network polymer gel electrolyte membrane. The method comprises the following steps: (A) adding a linear polymer and a solvent to a sample bottle, stirring and dissolving the linear polymer and the solvent, adding polyethylene glycol dimethyl acrylic ester, vinylene carbonate and a photoinitiator, and mixing the polyethylene glycol dimethyl acrylic ester, the vinylene carbonate and the photoinitiator evenly to form a solution; (B) coating a glass plate with the solution, covering a layer of glass plate to form a sandwich structure, and curing the sandwich structure to obtain an ultraviolet-cured semi-interpenetrating network polymer membrane; and (C) immersing the ultraviolet-cured semi-interpenetrating network polymer membrane into liquid electrolyte. According to the gel electrolyte provided by the invention, the balance between the ionic conductivity and the mechanical property is relatively well realized; the ionic conductivity at room temperature can be up to 1.49*10<-3>S cm<-1>; the mechanical property is good; the heat stability is good; the electrolyte can be prevented from leaking; the interface stability is good; and a lithium iron phosphate / metal lithium battery assembled by the gel polymer electrolyte membrane has excellent cycle performance and rate performance.
Owner:SHANGHAI JIAO TONG UNIV

Solvent-free polyurethane adhesive for flexible package

The invention discloses a solvent-free polyurethane adhesive for a flexible package, which is prepared by at least mixing a component A and a component B, wherein the component A is an endcapped polyurethane prepolymer containing terminal isocyanate groups, and the B component is a combination which is formed by compounding polyether polyol and polyester polyol of liquid styrene butadiene rubber containing terminal hydroxy groups and / or liquid acrylonitrile butadiene rubber containing terminal carboxyl groups. The solvent-free polyurethane adhesive of the invention is suitable for solvent-free compounding of the flexible package and has the advantages of low cost, wide compound substrate range (substrates such as plastic films, aluminum-coated films, aluminum foil and the like can be compounded), high bonding strength (the peeling strength of BOPP / PE reaches more than 4N / 15mm, the peeling strength of PET / VMPET reaches more than 4.5N / 15mm, and the peeling strength of the inner film of PET / AL / PE reaches more than 6N / 15mm), wide application temperature range (25-55 DEG C), long service life of a plastic plate (the service life is longer than 40 minutes when the plastic plate is used at 50 DEG C), good leveling property, no solvent discharge, environmental friendliness and the like.
Owner:广东国望精细化学品有限公司

Ink-jet recording material and preparation method thereof as well as method for preparing ink absorption layer coating liquid

The invention provides an ink-jet recording material and a preparation method thereof as well as a method for preparing an ink absorption layer coating liquid, and relates to an ink-jet material and a preparation method thereof as well as a method for preparing an ink absorption layer coating liquid, so that the problems of poor ink absorption effect, nonuniform color distribution of printed images, unclear printed images and higher preparation cost of the existing ink-jet recording material can be solved. The ink-jet recording material is prepared from the ink-jet layer coating liquid which is prepared from PVC (polyvinyl chloride) serving as a base material, a 20-30% polyacrylic acid emulsion serving as a primer, an inorganic nano-pigment with the thickness of 10-100nm, a dispersing agent, acetic acid, deionized water and an adhesive aqueous solution. The prepared ink-jet recording material prepared through PVC material corona treatment, PVC substrate glue coating, drying, ink absorption layer coating and drying has the advantages that that the printed image is clear, the ink droplet does not diffuse, and the color is distributed uniformly; and the ink-jet recording material has excellent performances of color definition, color saturation, glossiness and the like. The raw material cost and the manufacture cost are low, so the ink-jet recording material is advantageous to industrial production, popularization and application.
Owner:HARBIN INST OF TECH
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