14 results about "Smart composites" patented technology

The invention is suitable for the technical field of composite material forming, and provides a complex special-shaped structure production process method based on an intelligent composite material mold, and the production process method comprises the following steps: S1, preparing the intelligent composite material mold; s2, a complex special-shaped structure is formed; s3, controllable flexible demolding is carried out; s4, the intelligent composite material mold is subjected to shape restoring; the complex special-shaped structure is prepared through the intelligent composite material mold composed of the thermal response resin matrix and the mixed fiber felt, integrated forming of the complex special-shaped structure can be achieved, and it can be guaranteed that the mold strength and the product size precision are greatly improved, and the mold reusability is greatly improved.

The invention provides a pH response type MOF (Metal Organic Framework) material, a composite photosensitive resin system containing the pH response type MOF material and application of the pH response type MOF material in a dental appliance. The pH response type MOF material is a multifunctional metal organic framework material (Guardian-MOF) with a'core-shell-satellite 'structure, the MOF is chemically bonded into a light-cured resin matrix to form intelligent composite resin capable of 3D / 4D printing, and a prepared orthodontic appliance has required mechanical properties macroscopically so as to complete an orthodontic function, and has the advantages of being simple in preparation process, low in cost and the like. The oral cavity antibacterial and targeted remineralization treatment system is a distributed and intelligent'micro clinic 'microcosmically, can accurately respond to an oral cavity pathogenic microenvironment (low pH) and cooperatively execute multiple antibacterial and targeted remineralization treatment, and has a remarkable application prospect.

The application discloses a stable unfolding control method based on an intelligent composite material pod rod, and belongs to the technical field of controllable unfolding.The method comprises the following steps: pasting two heating films one and two on a pod rod half piece in sequence, and arranging a winding shaft, and realizing extrusion winding of the pod rod by the winding shaft; pasting an arc piece on the heating film one, and the glass transition temperature of the arc piece is higher than that of the pod rod half piece; the heating film two is powered on first during unfolding, after the pod rod segment pasted with the heating film two is unfolded, the heating film one is powered on, the part of the heating film which is not pasted with the arc piece first reaches the glass transition temperature of the material, and is unfolded under the driving of the shape memory function, and the part pasted with the arc piece has a higher glass transition temperature, and continues to be heated to realize stable unfolding.The application can be used under the condition that power supply energy and power supply lines of a spacecraft are insufficient, and overcomes the problem of insufficient power supply energy of the spacecraft.

The invention provides a printing head of a direct-writing type 3D printer and the direct-writing type 3D printer, and relates to the technical field of 3D printing. The printing head comprises a storage shell, a plurality of storage barrels, a nozzle, a spherical fixed shell, a spherical rotating shell and a driving mechanism; a plurality of vent holes are formed in the spherical fixing shell; a plurality of air outlet holes are formed in the spherical rotating shell; and the driving mechanism is used for driving the spherical rotating shell to rotate in the spherical fixed shell, so that the materials in one storage barrel are extruded out through the nozzles, or the materials in the multiple storage barrels are extruded out through the nozzles. Composite printing can be carried out on two or more materials under the condition that the printing head is not replaced, use is convenient, rapid switching of the materials in the continuous printing process is achieved, errors caused by position deviation in the process of frequently replacing the printing head in the prior art are avoided, and for preparation of intelligent composite materials, the production efficiency is greatly improved. And the method has important application prospects in diversified combination design and development and the like.

The invention discloses an environmental response type high-barrier degradable antibacterial intelligent composite material and a preparation method thereof. The material is of a four-layer composite structure and comprises a plasma pretreated paper base layer, a humidity response type organic barrier layer, a multifunctional inorganic developing antibacterial layer and a dynamic traceability organic barrier layer. Dynamic humidity adjustment is achieved through a polycaprolactone / modified bamboo fiber composite system, broad-spectrum antibiosis is achieved through a nano-silver / cinnamyl aldehyde compound antibacterial agent, and intelligent traceability is achieved by integrating an NFC chip and a temperature-sensitive color-changing substance. The water vapor transmission rate of the material is smaller than or equal to 6.0 g / (m.24 h), the antibacterial rate is larger than or equal to 99.9%, the 180-day soil degradation rate is larger than or equal to 60%, the material has the high barrier property, degradability, antibacterial property and intelligent response function, the defects that an existing material is single in function and unstable in interlayer combination are overcome, and the material is suitable for high-end food and medicine packaging and logistics turnover boxes.

The intelligent composite window comprises a window frame, an electrochromic glass unit, a flexible regression reflection film unit and a control unit, the electrochromic glass unit, the flexible regression reflection film unit and the control unit are fixedly installed on the window frame, the electrochromic glass unit is connected to the control unit, and the control unit controls the flexible regression reflection film unit according to the outdoor environment temperature. A control mode needing to be triggered at present is recognized according to a preset temperature threshold value, an electric control signal is generated accordingly, and the electric control signal is sent to the electrochromic glass unit so as to dynamically adjust the light transmitting state of the electrochromic glass unit; the flexible regression reflection film unit is movably arranged on the window frame, the control unit controls the flexible regression reflection film unit to move between a covering position and a folding position according to the outdoor environment temperature and the environment self-adaption control logic, and when the flexible regression reflection film unit is located at the covering position, the flexible regression reflection film unit covers the outer side surface of the electrochromic glass unit; in the stowed position, the flexible retro-reflective film unit is moved away to expose the electrochromic glass unit.

The invention relates to the technical field of antennas, and discloses a miniaturized portable phased-array antenna design method and device, and the method comprises the steps: obtaining multi-physical field sensing data on an intelligent composite substrate in real time, and fusing the multi-physical field sensing data into a current comprehensive physical state vector; obtaining a prediction vector at a future moment based on the current and historical state vectors through a state prediction model; collaborative optimization calculation is carried out based on the prediction vector, and an optimal physical deformation state and an optimal electronic phase compensation matrix are determined; and a hybrid compensation instruction is generated to drive the piezoelectric micro-actuator array and the electronic phase shifter array so as to complete physical and electronic bimodal compensation. By adopting predictive feed-forward control and collaborative optimization decision, the problem of response delay of a traditional compensation method is solved, complex environment disturbance can be quickly and accurately compensated, and the performance stability and reliability of the antenna in a dynamic environment are remarkably improved.

A method for preparing a highly elastic, skin-friendly, impact-resistant smart yarn and the smart yarn itself are disclosed. The preparation method includes: First, immersing a nanofiber membrane strip in a shear-hardening adhesive dispersion, followed by drying and unidirectional twisting to obtain an impact-resistant yarn; Second, sequentially wrapping the impact-resistant yarn and conductive metal wires with different twist directions onto an elastic yarn to obtain an elastic impact-resistant smart composite yarn; Third, coating short fibers onto the outer surface of the elastic impact-resistant smart composite yarn to obtain a highly elastic, skin-friendly, impact-resistant smart yarn. The yarn comprises an elastic yarn as the core yarn, a first wrapping layer, a second wrapping layer, and a short fiber outer layer. The impact-resistant yarn of the first wrapping layer is wrapped around the outer surface of the elastic yarn, the conductive metal wires of the second wrapping layer are wrapped around the outer surface of the first wrapping layer with opposite twist directions, and the short fiber outer layer is wrapped around the outer surface of the second wrapping layer. Therefore, this design can produce an impact-resistant yarn that simultaneously possesses high elasticity and sensing functions.

The invention discloses an automobile sealing strip microwave continuous vulcanization and seamless joint angle forming method, and relates to the technical field of automobile part manufacturing, a semiconductor quantum dot microwave sensitizer subjected to surface functionalization treatment, a microencapsulation activator system and an EPDM rubber base material are mixed, and a main body intelligent composite material is prepared; preparing a special digital wire material containing a depolymerizing agent and the same-frequency out-phase quantum dots for the joint angle; and after precise extrusion and shaping are conducted on the main body intelligent composite material, the main body intelligent composite material is fed into a dynamic microwave vulcanization cavity, and continuous and uniform vulcanization of the sealing strip main body is achieved through selective microwave vulcanization catalyzed by quantum dots. Molecular-level seamless fusion of the connecting corner and the main body is achieved, physical joints of a traditional process are thoroughly eliminated, and the sealing performance and long-term durability of the sealing strip are remarkably improved; quantum dot catalysis selective area microwave vulcanization and multi-energy field co-vulcanization are cooperated, it is guaranteed that vulcanization of the sealing strip body and the corner connecting area is uniform, and the performance consistency is greatly improved.

This utility model discloses an intelligent composite layered structure door, which, from the outside to the inside, includes a surface protective layer, a sound insulation main layer, a vacuum insulation layer, and a fireproof inner layer. An intelligent interlayer is also provided between the vacuum insulation layer and the fireproof inner layer. The intelligent interlayer includes a layer body, and a wiring harness channel is provided inside the layer body. Mounting slots for installing sensors are evenly distributed on the rotating side of the layer body, and the mounting slots are connected to the wiring harness channel. By adding an intelligent interlayer between the functional layers, the door achieves the triple core functions of sound insulation, heat insulation, and fireproofing, while allowing for the addition of corresponding monitoring sensors as needed, enabling intelligent use of the door. Simultaneously, the connection design between the wiring harness channel inside the intelligent interlayer and the mounting slots allows for concealed integration and centralized wiring of the monitoring sensors, avoiding the risk of exposed wiring aging and improving the aesthetics of the door.

This invention discloses a method for continuous microwave vulcanization and seamless corner molding of automotive sealing strips, relating to the field of automotive parts manufacturing technology. It involves mixing a surface-functionalized semiconductor quantum dot microwave sensitizer and a microencapsulated activator system with an EPDM rubber substrate to prepare a main intelligent composite material. A special digital material filament containing a depolymerizing agent and co-frequency heterogeneous quantum dots is prepared for the corners. After precision extrusion and shaping, the main intelligent composite material is fed into a dynamic microwave vulcanization chamber. Through quantum dot-catalyzed selective microwave vulcanization, continuous and uniform vulcanization of the sealing strip's main body is achieved. This invention achieves seamless molecular-level fusion between the corners and the main body, completely eliminating physical seams found in traditional processes, significantly improving the sealing performance and long-term durability of the sealing strip. The synergistic use of quantum dot-catalyzed selective microwave vulcanization and multi-energy field co-vulcanization ensures uniform vulcanization of the sealing strip's main body and corner areas, resulting in significantly improved performance consistency.

The application discloses a kind of acoustic wave monitoring systems based on optical fiber sensing, it is related to optical fiber sensing acoustic wave monitoring technical field, contain multiple modules, optical fiber sensing module uses the novel microstructure optical fiber with unique porous structure, surface is coated with intelligent composite material, also fill nanofluid, enhance response to acoustic wave, signal conversion module combines the advantage of multiple photoelectric conversion, according to light intensity dynamic switching mode, signal processing module uses hybrid filtering and adaptive quantization technology, data analysis module is based on the network of deep learning, fusion multi-scale feature, early warning module is based on risk assessment dynamic early warning, comprehensive multiple factor adjustment threshold and level, each module is coordinated, realize the efficient monitoring, analysis and early warning of acoustic wave signal.The application has excellent performance, high sensitivity, wide dynamic range;It can be intelligent and accurate analysis early warning, judge acoustic wave characteristics and timely alarm;Data storage is safe and efficient, provides advanced and reliable scheme for acoustic wave monitoring.

The invention discloses an intelligent composite material structure deformation space-time regulation and control method and system based on stress relaxation, and belongs to the technical field of intelligent composite material structure deformation regulation and control. The method comprises the steps that the shape memory layer is stretched in a high-temperature environment with the temperature higher than the glass-transition temperature of the shape memory layer and shape preserving is conducted, different stress relaxation is generated by controlling the deformation maintaining time, after cooling and fixing pre-deformation, the shape memory layer is compounded with the elastic layer, external stimulation is applied to trigger dynamic deformation, and space-time regulation and control over the deformation rate and amplitude are achieved; a plurality of composite structures can be combined in an array mode, and serialized deformation is achieved. The structure does not need to be redesigned or the stimulation sequence does not need to be accurately controlled, operation is easy and convenient, regulation and control are flexible, deformation precision is high, and the method is suitable for the fields of soft actuators, mechanical logic encoders and the like.