5results about How to "Short conversion time" patented technology

The invention relates to the field of organic pigments, and discloses a preparation method and application of nano organic pigments with different crystal forms. The preparation method comprises the following steps: 1) dissolving an organic pigment crude product in a good solvent, and adding inorganic salt for activation; 2) dropwise adding a poor solvent at a gradient rate, adding a crystal form guiding agent, and inducing formation of a crystal nucleus; wherein the alpha crystal form directing agent is magnesium stearate; the beta crystal form directing agent is dibutyl phthalate; the gamma crystal form directing agent is polyethylene glycol; the initial gradient rate is 0.5-1 mL / min, and the gradient rate is increased by 0.2-0.3 mL / min every 8-12 min; 3) ultrasonic treatment; 4) cooling, and adding a surface modifier for surface modification; according to the preparation method, the nanometer organic pigment with the target crystal form can be accurately obtained through process regulation and control, the nanometer organic pigment is uniform in particle size distribution, good in dispersity, good in heat-resistant stability and high in color and luster strength, and the nanometer organic pigment has the advantages of being good in flocculation-resistant stability and weather resistance after a coating is formed.

This invention relates to the field of hydrogen energy production, specifically to a composite material for improving the performance of magnesium-based hydrolysis hydrogen production, comprising a Mg-Ca alloy and Mg2M, wherein the mass percentage of Mg2M is 8%-15%; and the mass percentage of Ca in the Mg-Ca alloy is 8%-12%. The preparation method includes: Mg-Ca alloy preparation: magnesium and calcium materials are melted in an inert gas atmosphere at a melting temperature of 740-760℃, and then cooled to room temperature to obtain the Mg-Ca alloy; Mg2M preparation: magnesium and Mg2M materials are melted in an inert gas atmosphere at a melting temperature of 740-760℃, and then cooled to room temperature to obtain the Mg2M material; Ball milling: the Mg-Ca alloy and Mg2M are mechanically crushed and then pre-ball milled, followed by fine ball milling. By implementing this method, the conversion time for hydrogen production from magnesium-based materials can be improved.

The invention relates to the technical field of microorganisms, and discloses a fungus, application thereof and a method for preparing resveratrol. The preservation number of the fungus (Penicillium georgiense) HZ01 is CDMCC (China General Microbiological Culture Collection Center) No: 67695. The fungus (Penicillium georgiense) HZ01 can generate high-activity beta-glucosidase, so that polygonum cuspidatum can be efficiently converted into resveratrol, the preparation time is short, the conversion rate of polydatin is high, and the yield and yield of resveratrol are higher; meanwhile, the preparation conditions are mild, safe, reliable and environment-friendly, and large-scale preparation is easy.

The invention belongs to the technical field of microbial fermentation, and particularly relates to a preparation method of an astragalus mongholicus fermentation product and application of the obtained astragalus mongholicus fermentation product in preparation of products for reducing blood sugar and blood fat and promoting absorption. The preparation method specifically comprises the following steps: (1) uniformly mixing radix astragali powder with water, and sterilizing to obtain a radix astragali aqueous solution; and (2) inoculating strains into the radix astragali aqueous solution, and carrying out ultrasonic-assisted fermentation, so as to obtain the radix astragali fermented product. The obtained astragalus mongholicus fermentation product has strong active hydroxyl free radical scavenging rate, iron ion reducing capacity and ABTS < + > free radical scavenging rate; the activity of inhibiting alpha-glucosidase, DPP-IV (dipeptidyl peptidase-IV) and pancreatic lipase is better; the content release of calycosin, total polyphenols and total flavonoids in the intestinal digestion process can be obviously improved.

This invention discloses a ferroelectric liquid crystal composition comprising a first component and a second component. The first component contains one or more compounds of general formula I, and the second component contains one or more compounds of general formula II. The ferroelectric liquid crystal composition has the advantages of high transmittance, high contrast, large phase transition range, small pitch, and high spontaneous polarization intensity. This invention also provides a display device comprising the ferroelectric liquid crystal composition.