7results about How to "Reduced thermal stability" patented technology

The present application relates to the technical field of environmental microbial degradation of plastics, and particularly relates to a non-decarboxylation klebsiella SW-03 and application thereof in degrading PLA / PBAT plastics, the non-decarboxylation klebsiella SW-03 strain is preserved in Guangdong Microbial Culture Collection Center on December 5, 2025, the preservation number is GDMCC NO:67412, and the preservation address is the 5th floor of the 59th building of the Institute of Microbiology, Guangdong Academy of Sciences, 100, Middle Martyrs Road, Guangzhou City; the non-decarboxylation klebsiella SW-03 is isolated from eutrophic lake environment, can take PLA / PBAT plastics as the only carbon source, realizes the biodegradation of PLA / PBAT plastic film under normal temperature environment, and solves the problems of the current plastic degradation functional strain resource shortage and limited application scene.

The invention relates to a carbon fiber and potassium titanate whisker synergistically enhanced wear-resistant thermotropic liquid crystal polymer composite material and a preparation method thereof, and belongs to the technical field of material preparation. The composite material is formed by compounding a lubricant, carbon fibers (CF), potassium titanate whiskers (PTW) and a thermotropic liquid crystal polymer (TLCP), wherein the total addition amount of the CF and the PTW is 25wt% of the TLCP; and the lubricant is PTFE and graphite. The method comprises the following steps: 1) preparing a thermotropic liquid crystal polymer by a one-pot method; (2) carrying out surface modification on the potassium titanate whiskers by utilizing a silane coupling agent; and 3) dispersing the carbon fiber, the potassium titanate whisker / modified potassium titanate whisker and a lubricant in the thermotropic liquid crystal polymer to form a uniform carbon fiber / potassium titanate whisker / thermotropic liquid crystal polymer dispersion system. According to the invention, the dispersibility and compatibility of the potassium titanate whisker in a matrix can be obviously improved, the mechanical property and wear resistance of the thermotropic liquid crystal polymer are enhanced, the preparation process is simple, the production cost is low, the reaction condition is mild, batch production can be realized, and the special requirements of multiple fields such as aerospace and civil industry on resin materials can be met.

The invention discloses a heat-conducting and hydrophobic modified phosphorus-nitrogen halogen-free flame retardant chitosan aerogel as well as a preparation method and application thereof, and belongs to the technical field of aerogel preparation. The invention provides a preparation method of heat-conducting, hydrophobic and flame-retardant chitosan aerogel, which comprises the following steps: by taking biomass chitosan as a matrix, carrying out hydrophobic modification through tetraethoxysilane and methyltrimethoxysilane, and introducing an autonomously synthesized phytic acid-dicyandiamide flame retardant and an MXene high-heat-conductivity filler to form a mixed solution; and freezing in a refrigerator and freeze-drying in vacuum to obtain the multifunctional aerogel with a three-dimensional porous structure. The aerogel has remarkable advantages in the aspects of reducing the dosage of the flame retardant and reducing the thermal conductivity, and has the characteristics of hydrophobicity, flame retardance, thermal conductivity and reproducibility.

The invention discloses a method for reducing and detecting printing ink bubbles, and relates to the technical field of printing ink. The method comprises the steps of taking printing ink, designing a dispensing path, optimizing the dispensing amount and the dispensing speed, obtaining the dispensing amount through formula calculation, setting the dispensing speed and carrying out dispensing. Placing in a vacuum eutectic furnace, vacuumizing step by step to the ultimate vacuum degree, degassing, heating and curing to obtain a dispensing product; taking a dispensing product, adding the antioxidant solution, and recording the temperature T1 and the volume V3 of the dispensing product; and water culture is conducted, vacuumizing is conducted to reach the ultimate vacuum degree, and the temperature T2 and the volume V4 of the vacuumized dispensing product are recorded. According to an ideal gas formula, calculating the volume of bubbles in the printing ink and the dispensing product before and after vacuumizing by measuring the volume variation of the printing ink and the dispensing product in the graduated bottle and the separated graduated cup caused by bubble expansion under a vacuum condition; a spiral or Z-shaped path is adopted for dispensing, and air exhaust is facilitated through a continuous, one-way and non-closed dispensing path.

The utility model relates to cable technical field discloses a wear -resisting waterproof type power cable, including cable core and shielding layer, the number of cable core is three, the inside of shielding layer is located to cable core, the outer surface of cable core is fixedly connected with insulating layer, the inner chamber of shielding layer and be located between adjacent cable core and be provided with rebound rubber pipe, the utility model discloses a cable core, shielding layer and insulating layer can improve the insulation shielding performance of cable, through setting up rebound rubber pipe, can when the cable is extruded, to its buffer protection, avoid causing cable damage, through setting up waterproof layer, can improve the waterproof performance of cable, through setting up function layer, can improve the heat -proof flame -retardant performance of cable, through setting up wear -resisting layer, can improve the wear resistance of cable, through setting up above structure, can improve the wear -resisting waterproof ability and pressure -resistance of cable, to be able to satisfy the special use demand of user.

The application belongs to the technical field of synthetic biology, and particularly relates to a recombinant I&III fusion type collagen with high stability and low immunogenicity, and a preparation method and application thereof. The amino acid sequence of the recombinant I&III fusion type collagen and the nucleotide sequence of the coding gene thereof are disclosed. The recombinant I&III fusion type collagen with high stability and low immunogenicity is prepared by a fermentation method of an engineering bacterium. The results of examples show that the recombinant I&III fusion type collagen colI&III-1 provided by the application has good thermal stability, long-term stability and anti-degradation capacity. The animal experiment proves that the recombinant I&III fusion type collagen colI&III-1 has low immunogenicity, and does not cause immune balance disorder of animals. In addition, the recombinant I&III fusion type collagen has the characteristics of high biocompatibility and good safety, and has no influence on the overall health condition of animals.

The application provides a coating slurry, a diaphragm, a preparation method of the diaphragm and a battery. The diaphragm comprises a base material and a coating layer arranged on at least one surface of the base material, wherein the coating layer comprises non-fluorine polymer microspheres and a non-fluorine binder; the mass ratio of the non-fluorine polymer microspheres to the non-fluorine binder is (1-18):1; the melting point of the non-fluorine polymer microspheres is denoted as T, the glass transition temperature of the non-fluorine binder is denoted as Tg, and the T and the Tg satisfy the following relationship: 30≤|T+Tg|≤190. In the application, the diaphragm can be cold-pressed with positive and negative electrode sheets at low temperature, the adhesion between the diaphragm and the positive and negative electrode sheets is high, the diaphragm has excellent interface bonding performance, and the diaphragm has good air permeability, thermal stability and anti-liquid wrinkle performance.