36results about How to "Increase wettability" patented technology

The invention provides a preparation method of a superfine crystal inoculating agent for aluminum alloy grain refinement and relates to aluminum-based alloy and is a method for preparing nano-crystalline Al-Ti-B-Re thin-strip intermediate alloy by a rapid solidification technology of metal, wherein the method comprises steps as follows: proportioning 5-5.4% of Ti, 1-1.04% of B, 1-1.2% of Ce, 0.05-0.2% of La and the balance of Al according to determined ingredients; weighing raw materials Al-5Ti-1B intermediate alloy and lanthanum cerium alloy to proportion the materials; melting in vacuum to obtain blocky Al-5Ti-1B-1Re intermediate alloy; carrying out rapid solidification to obtain the superfine crystal inoculating agent for the aluminum alloy grain refinement, wherein the superfine crystal inoculating agent is the nano-crystalline Al-5Ti-1B-1Re intermediate alloy. With the adoption of the method provided by the invention, adverse impact of needlelike TiAl3 on the matrix structure is eliminated, nucleating particles TiAl3 with thinner size and more dispersed distribution are obtained, and superfine nucleating particles are realized.

Surgical grafts for the repair of bone defects, more particularly, surgical grafts that include demineralized bone fibers, are disclosed. Methods for making such grafts and for increasing their wettability and ensuring uniform density are also disclosed.

The invention provide a method for applying a coating to an ophthalmic lens or a mold for making the ophthalmic lens or a medical device other than ophthalmic lens. The method comprises spraying at least one layer of a coating liquid onto an ophthalmic lens using a spraying process selected from the group consisting of an air-assisted atomization and dispensing process, an ultrasonic-assisted atomization and dispensing process, a piezoelectric assisted atomization and dispensing process, an electro-mechanical jet printing process, a piezo-electric jet printing process, a piezo-electric with hydrostatic pressure jet printing process, and a thermal jet printing process. The coating can comprise a property/functionality pattern or a color image or combination of both.

Developer solution for a positive lithoprinting plate consists of developer proper, alkaline compounds, protective agent, wetting agent and solvent; the developer solution is characterized in that the developer solution simultaneously contains nonionic surfactant and anion surfactant with total content of 0.5-5(1000 semicolon); and the proportion of the nonionic surfactant and the anion surfactant is 15:85-25:75. The developer solution can effectively reduce the surface tension of the developer solution and improves the humidity of the plate.

The invention discloses a preparation method of a nitrogen-sulfur-phosphorus doped porous graphene oxide material and application of a nitrogen-sulfur-phosphorus doped porous graphene oxide material.According to the invention, a porous graphene oxide material doped with three elements is prepared by taking graphene oxide as a raw material, adding hydrogen peroxide in a hydrothermal condition forpore-forming and adding a dopant containing three elements of nitrogen,sulfur and phosphorus, and is applied to the electrode material of a supercapacitor. The three-dimensional porous structure is etched on the surface of graphene by using hydrogen peroxide with the strong oxidizing property, so that the specific surface area of a graphene material is further improved, the obtained porous graphene oxide is subjected to ultrasonic dispersion and then is fully mixed with a doping agent containing three elements of nitrogen, phosphorus and sulfur, nitrogen, sulfur and phosphorus heteroatoms areintroduced into the porous graphene oxide to improve the electrochemical performance of the graphene, and the porous graphene oxide is loaded on a conductive current collector to prepare a supercapacitor electrode, so that the capacitor obtains the better capacitance performance and has the good circulation stability.

A plant protecting agent for promoting the growth of plant tuber is prepared from the humate powder, diethylaminoethanol caproate, paclobutrazole and naphthylacetic acid.

The invention discloses a biaxially oriented polypropylene heat-sealing film and a preparation process thereof. The biaxially oriented polypropylene heat-sealing film comprises an outer surface layer,a core layer and an inner surface layer, and is prepared by co-extruding the outer surface layer, the core layer and the inner surface layer from top to bottom. The core layer is prepared from the following components in parts by weight: 87 to 92 parts of homo-polypropylene, 5 to 10 parts of hydrogenated petroleum resin, 0.8 to 1.2 parts of nano glass powder, 0.4 to 0.8 part of calcium carbonate,0.25 to 2.5 parts of nucleating agent, 0.2 to 0.5 part of stabilizer and 0.01 to 0.2 part of antioxidant. By arranging the biaxially oriented film layer structure, the components and the preparationprocess of the biaxially oriented film layer structure, the performance of a prepared tobacco film is improved, the strength, the mechanical performance, the glossiness and the humidity of the prepared tobacco film are improved, the wear resistance and the moisture barrier capacity of the prepared tobacco film are improved, moisture condensation and permeation can be effectively prevented, the existing tobacco quality and tobacco film appearance are kept, and the film is suitable for wide popularization and use.

The invention provides a rotary filling bed based on a hydrophilic-hydrophobic combined filler, and a system. According to the present invention, a hydrophobic filler and a hydrophilic filler are combined into a combined filler, and when a liquid is cut by the filler, the hydrophobic filler can fully disperse the liquid to uniformly disperse the liquid in the filler region, and the wettability of the hydrophilic filler can make the liquid spread sufficiently so as to increase the wetting fraction of the filler, such that different mixing effects can be achieved through the reasonable combination; the numbers of the hydrophilic filler layers and the hydrophobic filler layers in the combined filler are limited, such that the liquid droplet coalescence phenomenon generated by the liquid in the single hydrophobic filler region and the liquid turbulence reduction phenomenon generated by the liquid in the single hydrophilic filler region can be avoided; and the negative effect caused by the hydrophilicity can be alleviated or offset by the hydrophobicity while the negative effect caused by the hydrophobicity can be alleviated or offset by the hydrophilicity, such that the mass transfer and mixing performance of the hydrophilic-hydrophobic combined filler can be further improved by applying the hydrophilic-hydrophobic combined filler in the rotary filling bed.

The invention discloses a graphene composite material applied to haze prevention and a preparation method thereof. The graphene composite material comprises the following raw materials in parts by weight: 35 parts of graphene, 22 parts of organic silicon resin, 12 parts of diatom ooze, 55 parts of straws, 3-5 parts of zeolite powder, 8-10 parts of polylactic acid, 4-8 parts of diammonium hydrogenphosphate and 1-5 parts of sodium bicarbonate. The graphene composite material is reasonable in allocation of the ingredients, simple in preparation method and stable in chemical property, can be usedfor preventing haze and is good in haze prevention effect; the composite material prepared by the invention does not contain any heavy metal or chlorine and has the characteristics of having no toxicity or harm to human bodies and the environment, being convenient to use and the like.

The invention relates to the technical field of phenolic resin preparation, in particular to a preparation technology for phenolic resin with high adhesive force. The curing rate of the phenolic resincan be obviously increased, and therefore the production efficiency during usage can be improved. The technology comprises the main steps that S1, p-tert-butyl phenol, formaldehyde and lime are addedinto a high pressure reaction kettle, stirred and mixed to be uniform, and heated; S2, after the temperature inside the reaction kettle is increased to 80-100 DEG C, the temperature is controlled tobe stable, and a reaction is performed; S3, hydrochloric acid and methylbenzene are added into the reaction kettle; S3', hydrogenated palm base primary amine is added into the reaction kettle; S4, a reaction solution is transferred into a discharging pool, and metering and packaging are performed.

The invention relates to the technical field of preparation of a phenolic resin, in particular to a method for producing an easy-curing phenolic resin. The method can significantly improve the curingrate of the phenolic resin, thereby improving the production efficiency in use. The method comprises the main steps of S1, adding tert-butylphenol, formaldehyde and lime to an autoclave, stirring andmixing uniformly, and heating; S2, raising the temperature in the autoclave to 80-100 DEG C, controlling the temperature to be stable, and carrying out a reaction; S3, adding hydrochloric acid and toluene to the autoclave; S3', adding a modifier to the autoclave; S4, transferring reaction liquid to a discharge tank, metering and packing.