7results about How to "With shape memory function" patented technology

The invention relates to an intelligent reconfigurable dynamic sunshade system based on Kresling origami, which comprises a plurality of array structures, each array structure is composed of four unit cells composed of Kresling structures, and each unit cell comprises four panels, a panel with holes and a miniature fan; the four panels are sequentially connected to form a cavity, the panel with the holes is arranged at the top of the cavity, and the miniature fan is arranged on the upper portion of the panel with the holes. The panel is provided with creases, and the creases are made of a shape memory polymer material; and after the four unit cells in each array structure are opposite in pairs, the end points of the quadrangle on the top cover are connected to form transverse and vertical bidirectional symmetry, and the unit cells are intelligently folded and unfolded through temperature regulation and control, so that intelligent folding and unfolding of the array structure are realized. According to the intelligent reconfigurable dynamic sun-shading system based on Kresling paper folding, intelligent folding and unfolding are achieved through temperature control, and the problems that a traditional sun-shading structure is large in weight and poor in deformability are solved.

The invention relates to a multi-stimulus-response reprogrammable shape deformation method, and belongs to the field of functional materials. The shape deformation method comprises the following steps: heating the multi-stimulus response nano composite material to a glass-transition temperature, and inducing the nano composite material to deform through external constraint; heating until the temperature exceeds the topological freezing transition temperature, so that a dynamic cross-linked network in a resin matrix of the nano composite material is activated and recombined, and releasing stress to obtain a completely reshaped composite material; cooling and removing the external constraint, and raising the temperature to a glass-transition temperature to realize deformation programming of the nano composite material; the temperature is increased to the glass transition temperature after cooling, and the nanocomposite recovers to the permanent shape after reshaping; the nano composite material is a resin matrix composite material containing dynamic covalent bonds. The method is easy and convenient to operate, various in stimulation and rapid in response, the shape of the material can be reprogrammed, the shape memory function is achieved, and the shape of the formed material is changed.

This invention discloses a shape-memory cotton fleece-like fabric, a method for preparing the fabric, and related applications such as clothing made from the fabric. The shape-memory cotton fleece-like fabric provided by this invention has a uniformly distributed microfibrillated pile structure on its surface. This invention also provides a method for preparing the aforementioned cotton fleece-like fabric, which includes: fabric preparation, pretreatment, dyeing, first liquid ammonia treatment, ammonia removal drying, mechanical napping, second liquid ammonia treatment (setting), softening finishing, pre-shrinking, and inspection. The shape-memory cotton fleece-like fabric provided by this invention has a microfibrillated pile structure on its surface. While retaining the advantages of cotton fabrics, this fabric has a unique, lasting, delicate, and rich fleece feel, with a soft hand like cashmere, and maintains good mechanical properties, achieving a balance between "strength" and "fleece."

The invention discloses a fiber product with a shape memory function and a preparation technology, and relates to the field of fiber product manufacturing, and the fiber product comprises a fiber raw material and a hot melt adhesive raw material. The fiber product is prepared from the fiber raw material and the hot melt adhesive raw material, the brightness of the prepared fiber yarn can be increased after the hot melt adhesive raw material and the fiber raw material in a proper proportion are mixed, the color is transparent, and the original color of the fiber raw material is not influenced; furthermore, on the basis of the adhesion characteristic of the hot melt adhesive, the elasticity and plasticity of the fiber yarn can be improved, so that the fiber yarn is easily shaped in a heating state and has a certain shape memory function.

The invention discloses a plugging agent as well as a preparation method and application thereof, and belongs to the technical field of petroleum drilling. The plugging agent is prepared from a composition containing an oligomer monomer, a curing agent, an initiator, silicon dioxide and a foaming agent, and is used for improving the plugging effect of drilling well wall cracks and / or pores, the preparation method of the plugging agent comprises the steps that the oligomer monomer is copolymerized and cured to form a polymer plugging agent, the foaming agent is added into a copolymer, and the plugging agent is prepared. When the polymer particles are foamed, the polymer particles act in drilling well wall cracks, after foaming, the plugging agent expands at high temperature, the bridging effect of the polymer particles is strengthened, and a more compact and higher-strength plugging layer is formed, so that the well wall cracks and / or pores are further filled and plugged, and the plugging effect is improved.

The present invention relates to an implant surface shaping needle, the needle comprising a connecting structure, a stabilizing structure, and a polishing layer; the stabilizing structure is composed of a top beam, a support arm, and a bottom beam; the two support arms are symmetrically mounted at both ends of the top beam, and the bottom beam is symmetrically mounted at the bottom ends of the two support arms; the relative inner side surfaces of the two bottom beams are respectively arranged perpendicular to the top beam, and the polishing layers are respectively arranged on the relative inner side surfaces of the two bottom beams; the center of the top beam is connected to a motor mobile via the connecting structure; the motor mobile drives the stabilizing structure to rotate via the connecting structure, and the polishing layer contacts and rubs against the implant thread for implant shaping. The present invention can efficiently remove accumulated plaque and create a smooth surface that is not conducive to bacterial adsorption, eliminate peri-implantitis, save working time, and avoid damage to the surface coating and the residue of contaminated areas.

The utility model belongs to the technical field of connecting pipe fittings, and particularly relates to a thermal shrinkage sealing connecting pipe fitting and a pipe fitting assembly, which comprise a pipe fitting body, the pipe fitting body is provided with a port, an internal thread is arranged on the inner side wall of the pipe fitting body close to the port, the outside of the pipe fitting body is coated with a cross-linked polyethylene insulating anti-corrosion layer, and the cross-linked polyethylene insulating anti-corrosion layer is coated with an anti-corrosion layer. And the end part of the cross-linked polyethylene insulating anti-corrosion layer extends towards one end far away from the port to form a thermal shrinkage sealing pipe section. The cross-linked polyethylene insulating anti-corrosion layer is arranged outside the heat-shrinkable sealing connecting pipe fitting, the service life is longer and can reach more than 50 years, the heat-shrinkable sealing pipe section has a shape memory function through heating expansion after radiation cross-linking, the heat-shrinkable sealing pipe section can wrap the outer side of a polyethylene anti-corrosion steel pipe in a heat-shrinkable mode, the sealing effect is achieved, and the service life of the heat-shrinkable sealing connecting pipe fitting is prolonged. External rainwater and the like are prevented from entering the threaded connection position between the thermal shrinkage sealing connection pipe fitting and the polyethylene anti-corrosion steel pipe to corrode threads, and the cross-linked polyethylene material has good insulation performance.