6results about How to "Increase surface lubricity" patented technology

The present invention relates to a composition comprising a (A) fluoropolyether group-containing polymer and a (B) siloxane polymer, wherein the fluoropolyether group-containing polymer is a copolymer represented by the following formula (1) or (2):

The utility model discloses a multifunctional vaginal speculum which comprises a vaginal speculum body, an illuminating lamp belt is installed on the inner wall of the vaginal speculum body, the interior of the illuminating lamp belt is connected with one end of a connecting cable, the other end of the connecting cable is connected with a power supply battery, and a protection frame is fixedly connected to the surface of the vaginal speculum body. And a liquid spraying pipe is arranged in the protection frame. According to the vaginal speculum, the power supply battery can enable the connecting cable to supply power to the illuminating lamp belt, auxiliary illumination can be conveniently carried out when the vaginal speculum main body enters a body, the connecting cable can be conveniently covered and protected through the protection frame, meanwhile, the connecting pipe and the shunt pipe can guide lubricating liquid into the liquid spraying pipe through the oil storage bin, and the lubricating liquid can be conveniently sprayed into the vaginal speculum. And lubricating liquid can be sprayed out through the liquid spraying pipe, so that the surface of the vaginal dilator main body can be lubricated, the surface lubrication degree of the vaginal dilator main body is effectively improved, the surface friction force of the vaginal dilator main body is reduced, and pain and discomfort caused when the vaginal dilator main body enters a human body are reduced.

The invention relates to a production process for improving the surface lubricity of stainless steel wires. The production process is particularly suitable for production of core wires and woven mesh stainless steel wires. The stainless steel wire is cleaned, drawn and lubricated, so that the surface lubricity and corrosion resistance of the stainless steel wire are remarkably improved. The process comprises the steps of cleaning with powder, cleaning with wiping powder, drawing with a lubricant, coating with a COR lubricating layer and finally carrying out low-temperature baking treatment. The production process is simplified, the use performance and production efficiency of the stainless steel wire are improved, and the method is suitable for large-scale industrial popularization and application.

This invention relates to the field of advanced petrochemical new materials technology, and discloses a luminescent composite material, its preparation method, and its application. The composite material comprises the following components: homopolymer polypropylene, polybutylene succinate, a compatibility modification system, double-modified rare-earth strontium aluminate luminescent powder, dispersant, antioxidant, weathering agent, toughening agent, nucleating agent, and silane coupling agent. This invention employs a compatibility modification system composed of maleic anhydride-grafted PP-g-PBS copolymer and double-modified nano-montmorillonite. The maleic anhydride-grafted PP-g-PBS copolymer constructs a chemical link between the polypropylene and polybutylene succinate molecular chains through a grafting reaction, reducing the interfacial tension between the two resins. The double-modified nano-montmorillonite, after ionic liquid intercalation and silane grafting treatment, exhibits increased interlayer spacing and improved surface activity, uniformly dispersed in the matrix, and acts as a physical crosslinking point, improving the compatibility of the matrix resin and preventing phase separation.

This invention relates to a method for modifying the surface of biomaterials with an ultrathin hydrophilic lubricating coating and its application. The method comprises: mixing plasma-treated biomaterials with a precursor solution and performing an in-situ polymerization reaction to obtain biomaterials with an ultrathin hydrophilic lubricating coating; the precursor solution includes dopamine or its salt, zwitterionic monomers, and Tris buffer. The ultrathin hydrophilic lubricating coating prepared by the method of this invention can reduce the friction coefficient of biomaterial surfaces and has strong hydrophilic lubrication properties; it can form ultrathin hydrophilic lubricating coatings on the surfaces of different biomaterials, is suitable for surface modification of most biomaterials, has a simple and easy process, good hydrophilic lubrication properties, and can effectively improve the surface lubrication performance of biomedical materials.

The present invention discloses a self-oil-catching low-friction composite groove of an inner curve hydraulic motor distribution plate and a parametric design method thereof. With the low-friction design of the distribution plate as the goal, a low-friction composite groove with a self-oil-catching function is designed on the plane of the sealing belt of the distribution plate. The structural parameterization modeling of the composite groove is performed and the structural parameters corresponding to the composite groove are reasonably selected to obtain distribution plate composite grooves with different structures and establish corresponding structural models. The lubricating oil film distribution, bearing capacity and friction coefficient corresponding to different structural models of the distribution plate composite groove are obtained through calculation and experiment, and the design parameters of the optimal distribution plate composite groove that meets the optimization target are obtained by comprehensive comparison. The present invention realizes the low-friction design of the distribution plate surface by designing self-oil-catching low-friction composite grooves with different structural parameters on the surface of the distribution plate of the inner curve hydraulic motor, reduces the wear of the distribution plate surface, and improves the mechanical efficiency and service life of the inner curve hydraulic motor.