5 results about "Membrane adhesion" patented technology

This utility model provides a device for measuring the adhesion performance of reflective film, comprising: a base plate, a counterweight, a top plate, and a support plate. Two mounting columns are symmetrically arranged on the top of the base plate, and the top plate is positioned on top of the two mounting columns. A horizontal adhesive plate is provided at the bottom of the top plate for adhering the reflective film. A binding frame is provided on the counterweight for binding the ends of the reflective film. Vertical rods are also symmetrically arranged on the top of the base plate. Sliding seats are provided at both ends of the support plate, and the two sliding seats are slidably connected to the two vertical rods in the vertical direction. The support plate is located below the adhesive plate. Each sliding seat is provided with a locking component for locking it to the corresponding vertical rod. This invention solves the problem in the prior art where the hammer lacks support during the measurement of reflective film adhesion performance, affecting the measurement results.

This invention provides a high-performance elastomer-modified bitumen waterproof membrane, belonging to the field of waterproof membrane manufacturing. The invention comprises: bitumen, a high-performance bitumen-based waterproof membrane modifier, a polymer resin, a solubilizer, a second rubber powder, and a filler. The high-performance bitumen-based waterproof membrane modifier includes a novel thermoplastic elastomer, a moderately pyrolyzed rubber polymer, and polyisobutylene rubber. The moderately pyrolyzed rubber polymer is obtained by stirring, mixing, and high-temperature pyrolysis of the first rubber powder and a first free radical scavenger. The novel thermoplastic elastomer is obtained by chemical grafting of the moderately pyrolyzed rubber polymer, a second thermoplastic elastomer, and a second free radical scavenger. Compared to traditional elastomer-modified bitumen waterproof membranes, this invention exhibits superior resistance to heat and oxygen, and aging in complex environments. It also demonstrates superior high-temperature anti-flow and low-temperature crack resistance, and superior membrane adhesion, significantly extending the service life of building waterproofing layers.

This disclosure relates to compositions including formulated sucralfate or other aluminum-crosslinked sulfated agents and one or more biologically active substances to mucosal surfaces within the GI tract and methods for the manufacture and the use of these compositions.

The application belongs to the technical field of biotechnology, and particularly relates to a gel microsphere loaded with probiotics and a preparation method and application thereof. The gel microsphere comprises core material and composite wall material, the core material is probiotics, the composite wall material is composed of sodium alginate, beta-conglycinin and thio-oxidized konjac glucomannan, and a 3D printing microfluidic technology is combined to construct an embedding system, so that precise preparation of the microsphere is realized, the particle size of the microsphere can be precisely controlled by adjusting parameters such as flow rate and viscosity, and the embedding microsphere with high monodispersity and uniform morphology is obtained. The synergistic effect of the composite wall material in the application not only enhances the stability of the embedding structure, but also endows the microsphere with pH / enzyme dual response characteristics and intestinal mucosal adhesion ability, and solves the problems of poor embedding protection effect and insufficient targeting of single wall material.

This application provides a method for preparing an anti-biofouling ultrafiltration membrane. By copolymerizing cellulose acetate and dextran-40 and optimizing their composition and ratio, the pore size distribution range of the ultrafiltration membrane can be controlled, achieving more precise pore size control. Dextran-40 has good anti-protein adsorption properties, while cellulose acetate has certain hydrophilic properties. The copolymerized product may have better antifouling properties, reducing protein adsorption and membrane adhesion, and extending the service life of the ultrafiltration membrane. This solves the technical problems of poor antifouling performance of existing ultrafiltration membranes, which leads to a decrease in membrane flux, and poor adhesion of chitosan to polyethersulfone, which easily dissolves and causes the failure of antifouling ability. By fixing the composite material of silver nanoparticles and chitosan onto the ultrafiltration membrane by inkjet printing, an antibacterial layer can be formed, enhancing the antibacterial properties of the ultrafiltration membrane and reducing the adhesion and reproduction of microorganisms.