52results about How to "Fully stretch" patented technology

The invention relates to an intelligent management method and system for fitness sports. An intelligent terminal stores individual exercise prescriptions generated according to individual physical fitness information in advance. A sports detecting device detects physiological parameters and exercise time when a user exercises and sends the physical parameters and the exercise time to the intelligent terminal. The intelligent terminal instructs the user to exercise according to the physical parameters and the exercise time combined with the individual exercise prescriptions when the user exercises. The intelligent terminal instructs the user during exercise in real time according to the physical parameters and the exercise time combined with the individual exercise prescriptions when the user exercises, and therefore the user can exercise more scientifically and the exercise effect is better.

The invention relates to a highly heat-resistant ultralow-expansion polyimide film and a preparation method and application thereof, which belong to the technical field of polyimide and solve the problem that the polyimide film in the prior art can not have both low thermal expansion coefficient and good heat resistance, particularly the problem that the polyimide film in the prior art can not have both high heat resistance and ultralow expansion coefficient within a wide temperature range. According to the highly heat-resistant ultralow-expansion polyimide film, a linear rigid unit and a polar amide group are contained in the molecular main chain structure of polyimide; and preparation raw materials include aromatic dianhydride and diamine with an amide structure. According to the preparation method, aromatic diamine is dissolved in organic solvent, aromatic dianhydride is added, and thereby a homogeneous phase polyamic acid solution is obtained; the homogeneous phase polyamic acid solution is coated, solidified, stripped, dried and annealed, and thereby the polyimide film is obtained. The highly heat-resistant ultralow-expansion polyimide film and the preparation method and application thereof realize application in the fields of electronics, microelectronics, optical display, optical communication and the like, particularly wide application in the field of flexible photoelectronics.

The invention discloses a degradable drug-loaded film material with a step-by-step slow release function and a preparation method and application of the degradable drug-loaded film material, and belongs to the technical field of material preparation. Natural polymers with opposite charges and a crude drug are re-agglomerated to obtain a drug-loaded microcapsule, the surface of the microcapsule isprovided with micropores with the uniform size, and thus channels are provided for initial release of the drug; and then the drug-loaded microcapsule is dispersed into biodegradable aliphatic polyester, and through the effect of interface chemical bonds, the microcapsule is fixed into polyester molecules to form a biodegradable material. When being released, the drug can be released into an aliphatic polyester film from the micropores of the microcapsule through the diffusion effect so as to be subjected to first-layer release firstly, the drug released in the film can be subjected to second-layer slow release along with degradation of a polyester film material, on the one hand, the efficient slow-release effect on the drug is achieved, on the other hand, the degradation speed of the aliphatic polyester is increased, environmental pollution is reduced, according to the method, a process is simple, raw materials are easy to obtain, and batch production can be achieved.

The invention discloses a material boiling device for a bamboo bone of a folding fan and a boiling technique thereof, and belongs to the field of mechanical automation equipment. The material boiling device is characterized by comprising a bamboo bone conveying device, a bamboo bone fixing device and a branch knot removing linear cutting tool. Because of the growth characteristic of bamboos, branch knots only grow in the positions of bamboo knots. By the adoption of the device, the middle of the bamboo bone can be clamped, and then the branch knots at the two ends of the bamboo bone are treated through rotation of the bamboo bone by a reversing motor. The technique is simple, and processing reliability and precision are both excellent.

The invention relates to a method for preparing a functional polyvinylidene fluoride membrane and belongs to the technical field of separation membranes. The functional polyvinylidene fluoride membrane provided by the invention has good antibacterial properties and hydrophilicity; when titanium dioxide is subjected to photon excitation of certain energy, a photocatalytic reaction can be resulted and a large number of substances with strong oxidization can be generated, the substances with strong oxidization have a series of redox reactions with organic matter to degrade the organic matter, andas microorganisms, including viruses, bacteria and fungi, are composed of organic matter, the titanium dioxide can degrade organic components of the microorganisms under excitation of light to damageor even kill the viruses, bacteria and fungi; and according to the method, modified cellulose acetate is blended with modified polyvinylidene fluoride powder, N, N-dimethyl acetamide is adopted as asolvent, polyvinyl pyrrolidone is adopted as a modification additive, and thus the functional polyvinylidene fluoride membrane with good hydrophilicity and transmissibility is prepared.

The invention discloses a mildew-proof agent for artificial boards, and belongs to the technical field of additives for artificial boards. The mildew-proof agent has the advantages that mixed alcoholis added into tetrabutyl titanate which is a titanium source, adsorption thin layers are formed on the surfaces of particles, accordingly, durable and stable antibacterial and mildew-proof effects canbe guaranteed, and the stability of bacterial inhibition agents can be improved; oxidizing agents added into the mildew-proof agent are Jones reagents, alpha-site hydroxyl can be directionally oxidized by the oxidizing agents to obtain aldehyde, beta-site hydroxyl can be directionally oxidized by the oxidizing agents to obtain carbonyl, soybean proteins can be decomposed into different types of amino acid, Schiff base can be formed, accordingly, pore structures inside systems can be densely filled, and the moisture barrier and mildew-proof properties can be effectively enhanced; partial functional group locations in cross-linked networks of the systems can be occupied by added lavender essential oil in preparation procedures, the vibration intensity of covalent bonds in molecules in the cross-linked networks can be lowered, accordingly, the water-resistant performance further can be reinforced, ascorbic acid can have bacterial inhibition performance, and the problem of poor mildew-proof effects of current common mildew-proof agents for existing artificial boards can be solved by the aid of the mildew-proof agent.

The invention discloses a water washing machine with adjustable fabric expanding devices, and relates to the technical field of textile printing and dyeing. The water washing machine with the adjustable fabric expanding devices comprises a water washing box; a fabric inlet and a fabric outlet are formed in the water washing box; a plurality of groups of fabric guide roller groups are arranged in the water washing box; the water washing machine with the adjustable fabric expanding devices is characterized in that a fabric expanding device is arranged between every two adjacent groups of fabric guide roller groups. According to the water washing machine with the adjustable fabric expanding devices, the fabric expanding device is arranged between every two adjacent groups of lower fabric guide roller groups, so that a fabric between the two adjacent groups of the fabric guide roller groups can be fully stretched, the functions of expanding the fabric and removing wrinkles are realized, and the quality of the fabric is improved.

The invention relates to a gantry punching machine applied to a latex cotton product. The gantry punching machine comprises a gantry frame, wherein a fixed lower pinhole plate is arranged at the lower part of the frame; a needle plate and a needle sleeve plate, which are orderly arranged from top to bottom and arranged correspondingly to the lower pinhole plate, are arranged at the upper part of the frame; the needle plate and the needle sleeve plate can move up and down; a controller for containing the latex cotton is formed between the needle sleeve plate and the pinhole plate. The gantry punching machine has the advantages that 1) the lower pinhole plate and the needle sleeve plate are utilized to guide each needle arranged on the needle plate, so that each needle can keep synchronous, and can move downwards at an accurate angle in the punching process, so as to ensure the punching quality; 2) a beam is further arranged on the gantry punching machine, so that the strength of the entire punching device is enhanced; the inaccurate punching phenomenon caused by inconsistent deformation due to up-and-down movements, rigidity and the like when the needle plate is directly connected to the gantry frame is avoided. Therefore, the problem is well avoided due to existence of an upper beam; the punching quality is further ensured.

The invention discloses biomass charcoal briquette fuel and a preparation method thereof. The biomass charcoal briquette fuel comprises charcoal powder and a binder, and the mixing mass ratio of the charcoalpowder to the binder is 15: 100. According to the preparation method of the biomass charcoal briquette fuel, konjac powder is adopted as the raw material to prepare the binder, the prepared binder and the charcoal powder are uniformly stirred according to the mass ratio of 15: 100, and the mixture obtained by uniformly mixing the binder and the charcoal powder is put into an electric heating constant-temperature drying oven. The binder prepared from the konjac powder is relatively low in cost; by adopting the preparation process, the crystal form of konjac powder particles can be destroyed, so that the molecular chain of the konjac powder can be fully stretched, the micro-surface of a film formed by the gelatinized glue solution is smoother and more compact, thermal stability is also improved to a certain extent, and the biomass charcoal briquette fuel can have relatively good adhesiveness, so that the anti-falling performance of the biomass charcoal briquette fuel is further improved, thus ensuring that the biomass charcoal briquette fuel is not prone to damage in a long-distance transportation process.

The invention relates to a high-transparence low-expansibility polyimide film as well as a preparation method and the application thereof, belongs to the technical field of polyimide films, and aims at solving the problem that a polyimide film prepared by the conventional doping method cannot have both high light transmittance and low thermal expansion coefficients. The preparation method comprises the following steps: uniformly mixing a polyimide resin solution and a perhydropolysilazane solution to obtain a perhydropolysilazane-doped polyimide resin solution; coating the surface of a base plate with the perhydropolysilazane-doped polyimide resin solution; hydrolyzing the perhydropolysilazane into silica; drying the film; curing to obtain the silica-doped polyimide hybrid film. The polyimide film prepared according to the abovementioned method is outstanding in optical performance, high in light transmittance rate of a visible area, and obviously low in thermal expansion coefficient;the polyimide film can be used as a flexible polymer base plate material to be applied to production of photoelectric devices.

The vibration-type rubber tire shaping vulcanization method and the excitation device of the present invention are provided with a vibration-type vibration excitation device in the original thermal pipeline system of the vulcanizer. Vibration excitation is performed on the tire, and the vibration excitation is applied to the vulcanization process of the rubber tire. The vibration excitation device consists of an inlet excitation valve, an outlet excitation valve, a motor, a transmission and a stepless speed regulating pump. One input end of the transmission is connected to the motor, and two output ends are respectively connected to the inlet excitation valve and the outlet excitation valve. Connected, and the two output terminals output synchronously, the inlet and outlet excitation valves are driven by motors, and the structures of the inlet and outlet excitation valves are the same with a phase difference of 90°. The invention is applicable to various types of automatic shaping vulcanizers with a capsule structure, and is beneficial to improving the vulcanization quality of rubber tires.

The invention discloses a material boiling device for a bamboo bone of a folding fan and a boiling technique thereof, and belongs to the field of mechanical automation equipment. The material boiling device is characterized by comprising a bamboo bone conveying device, a bamboo bone fixing device and a branch knot removing linear cutting tool. Because of the growth characteristic of bamboos, branch knots only grow in the positions of bamboo knots. By the adoption of the device, the middle of the bamboo bone can be clamped, and then the branch knots at the two ends of the bamboo bone are treated through rotation of the bamboo bone by a reversing motor. The technique is simple, and processing reliability and precision are both excellent.