8results about How to "No degradation" patented technology

The invention provides a bone material and a preparation method and application thereof, and relates to the technical field of medical treatment. According to the invention, bacillus licheniformis ACCC 10236 is adopted for fermentation treatment of flatfish bones for the first time to obtain a new skeleton material, and the material has no potential cytotoxicity, has a certain promotion effect on cell proliferation, and has the potential of promoting bone cell growth. And the fermentation process also improves the mechanical properties of the flatfish bones, so that the flatfish bones are closer to the data of real human bones. The novel bone material is further prepared from polyvinyl alcohol, polylactic acid and fishbone ferment powder, the material has mechanical properties close to those of a human body, and the bone material is free of inflammatory reaction and thrombotic reaction, can be degraded in the human body and is widely applied to various medical scenes. The invention further provides a preparation method of the novel skeleton material, and technical support is provided for industrial production of the skeleton material.

The application discloses a kind of high-sensitivity thermal sensitive coating of nanomaterial and preparation method thereof, wherein, high-sensitivity thermal sensitive coating of nanomaterial includes the following components by mass fraction: base component 30-50 parts;Hydroxylated nanometer bismuth acid lanthanum 5-12 parts;Amino-modified nanometer tin oxide antimony 4-10 parts;Polyimide-coated nanometer europium vanadate 3-8 parts;Dispersing agent 2-6 parts;Film forming agent 3-7 parts;Anti-aging agent 1-3 parts;Solvent 15-30 parts;The present application is high in thermal sensitivity, by designing hydroxylated nanometer bismuth acid lanthanum, amino-modified nanometer tin oxide antimony, polyimide-coated nanometer europium vanadate three kinds of innovative thermal sensitive components, synergistic effect of three, can significantly improve the thermal sensitive response sensitivity of coating, the thermal sensitive response sensitivity of coating is ≤0.1 DEG C, far higher than existing thermal sensitive coating (0.5 DEG C or more), can satisfy the demand of high-precision temperature detection.

This invention discloses a high-toughness asphalt mixture modified from waste plastics and rubber, and its application. It relates to the field of asphalt mixture preparation technology, comprising 80-150 parts of base asphalt, 2-8 parts of modified waste plastic particles, 4-12 parts of activated waste tire rubber powder, 100-150 parts of aggregate, and 30-40 parts of mineral filler. This invention adds silane-coupled waste plastic particles and microwave-activated waste tire rubber powder to the asphalt mixture, limiting the mass ratio of modified waste plastic particles to activated waste tire rubber powder to 1:(1.5~2). The aggregate and mineral filler fully fill the gaps, synergistically solving the defects of high low-temperature brittleness and insufficient high-temperature performance in asphalt. This results in a mixture with excellent high-temperature stability and low-temperature crack resistance, and significantly improved performance reproducibility.

The application provides a mixed matrix membrane with high stability, a preparation method and application. The method adopts a phase inversion method, uses prepared UiO-66 and cellulose acetate with excellent chemical stability as raw materials to prepare a support layer membrane, and then synthesizes a polyamide active layer by polymerization of acyl chloride monomers and amine monomers on the support layer membrane, so that the required mixed matrix membrane is obtained. The prepared mixed matrix membrane has high desalination performance and high stability, and has a wide application prospect in the fields of seawater desalination and wastewater purification.

The invention discloses a nano metal oxide perfluoropolyether oil phase dispersion and a supergravity synthesis method thereof, and belongs to the technical field of material preparation. The dispersion is prepared from nano metal oxide particles modified by a surfactant and perfluoropolyether base oil in a mass ratio of (1: 5)-(1: 100). The synthesis method comprises the steps of metal salt dissolution, preparation of metal hydroxide through a supergravity reaction, oxidative conversion, in-situ surface modification and ultrasonic dispersion, and mass transfer is enhanced by a supergravity field so as to accurately control the particle size of particles. The dispersoid is transparent or semitransparent, the average particle size of nanoparticles is 3-15 nm, and the dispersoid is stable in an acid-base environment with the pH value of 1-14 and in a temperature range of-40 DEG C to 200 DEG C, is suitable for extreme working conditions such as aerospace and military industry, and has a wide application prospect.

The invention relates to the technical field of fermentation strain preparation, and discloses clostridium butyricum freeze-dried powder and a preparation method thereof, and the freeze-dried powder comprises the following raw materials: clostridium butyricum liquid, a carrier, a freeze-drying protective agent and a dispersion stabilizer. The clostridium butyricum freeze-dried powder is arranged, the viable count of the clostridium butyricum freeze-dried powder is larger than 2 * 10 < 9 > cfu / g, the water content is smaller than 2%, and spores are in a dormant state, so that long-time preservation of the strain is facilitated, the strain cannot be degraded in the preservation process, the metabolic system cannot be affected, and the number of the strain in the inoculation process can be reduced. Due to decline caused by continuous passage and propagation and the clostridium butyricum in a spore dormant state, inoculation in fermentation production is facilitated, the inoculated dry powder strain can quickly germinate spores to form vegetative cells, inoculation steps are reduced, strain activity is maintained, and in industrial fermentation production, the clostridium butyricum has a good application prospect. The production cycle can be shortened by using the dry powder strain, the probability of spontaneous mutation in microbial passage is reduced, and the production efficiency is improved.

There is provided a specimen analyzer that can measure carry-over without degrading a specimen processing capability. A specimen analyzer according to the present invention measures a first sample including a first specimen and a first internal reference material, subsequently measures a second sample including a second specimen and a second internal reference material, and calculates an amount of the second specimen included in the second sample using an amount of the first internal reference material measured when the first sample has been measured and an amount of the second internal reference material measured when the second sample has been measured.

The invention relates to the field of pesticides, in particular to a diflufenican and pyroxasulfone pesticide suspending agent and a preparation method thereof. The diflufenican and pyroxasulfone pesticide suspending agent provided by the invention is prepared from the following raw materials in parts by mass: 7 to 10 parts of pyroxasulfone active compound, 10 to 15 parts of diflufenican active compound, 1 to 3 parts of wetting dispersant, 5 to 10 parts of dispersant, 1 to 3 parts of suspension thixotropic agent, 5 to 10 parts of antifreezing agent, 0.1 to 0.3 part of preservative, 0.1 to 0.3 part of thickening agent, 0.1 to 0.3 part of pH regulator, 0.1 to 0.3 part of defoaming agent and 60 to 80 parts of water. Through the synergistic effect of the auxiliary agents, the storage and application stability of the preparation is guaranteed, it is also guaranteed that the effective components are evenly distributed and efficiently absorbed by weeds, the green agriculture requirement is met, and the high practical and popularization price is achieved.