43results about How to "Fast degumming" patented technology

The invention relates to a modified epoxy resin of monocrystalline silicon rod cutting glue. The modified epoxy resin of the monocrystalline silicon rod cutting glue comprises the following raw materials comprising a component A and a component B, wherein the component A comprises 35 to 78 percent of epoxy resin, 20 to 60 percent of toughening agent, 0.5 to 2 percent of defoaming agent and 0.5 to 3 percent of coupling agent; and the component B comprises 48 to 69 percent of polymerized mercaptan, 30 to 50 percent of alicyclic modified amine and 1 to 5 percent of accelerator. The modified epoxy resin has a high degumming property and can reduce sheet-falling rate. According to epoxy silane, toughness and temperature resistance of an alicyclic amine material are achieved and low surface tension of the whole system is achieved, so that the whole levelling property of the system is improved in the whole gluing process. A hydrolysis reaction can be performing on a silane bond and the hydroxy on the surface of glass and the surface of a silicon wafer, so that the adhesion to the surface of the glass and the surface of the silicon wafer is improved. In addition, the system is toughened, the water-absorbing rate of the system after the alicyclic amine is modified is increased and the heat-resistant temperature TG is reduced, so that a sheet-falling phenomenon does not exist in the cutting and spraying processes, and the resin can be degummed quickly in the process of heating to 40 to 50 DEG C in the state of high water absorbability and softening after heating. The modified epoxy resin is applied to monocrystalline silicon rod cutting and has an extremely important effect on the monocrystalline silicon wafer industry.

The invention relates to an adhesive able to realize rapid bonding and rapid separation. The adhesive is composed of a component A and a component B in a weight ratio of 1:1. The component A comprises: 40-65 parts of special epoxy resin, 6-19 parts of thermoplastic phenolic resin, 5-20 parts of a diluent, 1-6 parts of a thermal expansion agent, 1-10 parts of a water decomposition additive, 5-20 parts of a desiccant, and 0.5-5 parts of a thixotropic agent. The component B comprises: 40-70 parts of a curing agent, 6-12 parts of a diluents, 0.5-5 parts of a degumming accelerator, 1-15 parts of a water decomposition additive, 15-35 parts of a desiccant, and 0.5-5 parts of a thixotropic agent. As a crystal holder-glass temporary bonding glue, the product provided by the invention has fast bonding speed, and at the end of wafer cutting, the crystal holder and glass plate can be immersed in hot water to realize rapid degumming and separation. No harmful gas is generated, the adhesive is energy saving and environment-friendly, and the production efficiency of solar crystal silicon slices is significantly enhanced.

Disclosed is a method for removing glue from ramee rapidly, which comprises the steps of, steeping raw ramee with aqueous solution of sulfuric acid, flushing immersed raw ramee with clean water, steeping the ramee with aqueous solution of NaOH, charging adjuvant, sodium tripolyphosphate, boiling in water.

The invention relates to a method for using ultrasonic wave and microwave to degelatinize apocynum, used in one additional nanometer material, wherein it is characterized in that: putting the apocynum into sealed container with diluted alkali liquid of stannic oxide nanometer powder; heating with microwave; washing with water; washing with acid, and putting it into the washing liquid whose alkali density is 1.0-2.0% with stannic oxide nanometer powder; treating with utlrasonic wave with low frequency; treating with ultrasonic wave with high frquency; washing it with acid and water, then drying. The inveniton has lower cost and high speed, without pollution.

The invention discloses a novel high-pressure refining process for a silk folded cone yarn, wherein the high-pressure refining process is characterized by comprising the following steps: injecting water to raise the temperature, adding a refining agent, boosting the pressure, raising the temperature, refining continuously, reducing the pressure, draining liquid, and washing with water. A special processing process is adopted, so that a silk gum wrapped in the center of a silk folded yarn is removed more rapidly and efficiently, and gums of a raw silk in both the outer layer and a central core of the whole silk folded yarn are removed evenly and cleanly. Due to the reasonable processing process, the refining time of the silk folded cone yarn is shorter, the refining efficiency is higher, so that the damage of a fibroin of the raw silk on a surface layer of the silk folded yarn is reduced, and the quality of the silk folded yarn is further improved.

The invention discloses a production method of an elastic puffed silk quilt, relating to the technical field of home textile preparation. The method comprises cocoon selecting, cocoon cooking, degumming, pupae removing, ring sleeving, thread insertion and wire drawing, and is characterized by also comprising the steps of (A) firstly soaking cocoons into purified water before cooking the cocoons, wherein the water temperature is 50-70 DEG C and the soaking time is 3-5 minutes, putting the cocoons and the purified water into a vacuum container after soaking is completed, adding an alkaline swelling agent of which the pH is 9-10 for cooking, wherein the cooking temperature is 90-100 DEG C and the cooking time is 5-10 minutes; and (B) soaking natural silk into the purified water after wire drawing is completed, wherein the water temperature is 70-80 DEG C and the soaking time is 3-5 minutes, soaking the natural silk into the purified water containing an acid swelling agent, wherein the water temperature is 20-30 DEG C and the soaking time is 2-4 minutes, and finally drying and arranging the natural silk. Compared with the prior art, the production method has the advantage that the problem that the elasticity of an existing silk quilt is easily reduced can be solved.

The invention relates to a clean jute fiber degumming method and belongs to the fields of textiles, biology and environmental protection. The clean jute fiber degumming method comprises a degumming step, wherein in the degumming step, the used cooking liquor is at least one of diluents of a cellulose extracting agent, residual liquor with the solid content of less than or equal to 10% and wastewater in which residues and lignin are removed; the extracting agent is prepared by mixing a solution A and a solution B; the solution A is alkali liquor; the solution B is prepared from crude enzyme fluid and an enzyme stabilizer; and the crude enzyme fluid is clarified crude enzyme fluid prepared by fermenting bacillus subtillis and separating the thallus. According to the method disclosed by the invention, jute fibers are treated in a bath by adopting the crude enzyme fluid and dilute alkali, so that the molecular structure of colloid in the original hemp is greatly changed, the stability of the colloidal complex is severely damaged, alternation and cycle of swelling-modification-colloid removing can be formed, and the aim of rapidly degumming the jute fibers is rapidly achieved under normal temperature conditions.

The invention discloses a method for high-temperature and high-pressure acid degumming of tussah silk. Firstly, acid, a penetrant and water are mixed, degumming liquid is obtained, silk is soaked with the degumming liquid, and degumming is carried out under the conditions that the pressure is 1.0-3.0 MPa and the temperature is 100-140 DEG C. The tussah silk is treated through the high-temperature and high-pressure acid degumming method, the hydrolysis speed of sericin and the breaking speed of protein peptide bonds are increased, degumming time is short, the degumming rate can reach 13%, the breaking strength of the silk obtained after degumming can be kept at about 620 N, the strength losses of the silk are small, and rapid degumming of the tussah silk is achieved.

The present invention relates to a clean plant cellulose extraction agent, a preparation method and applications thereof, and belongs to the field of biotechnology and agricultural product processingand production. The clean plant cellulose extraction agent is formed by mixing a liquid A and a liquid B, wherein a volume ratio of the liquid A to the liquid B is 3:1-5:1, the liquid A is an alkalineliquid, the liquid B comprises a crude enzyme liquid and an enzyme stabilizer, and Bacillus subtilis CGMCC1.836 is fermented, and bacterial separation is performed to obtain the clarified crude enzyme liquid. According to the present invention, the molecular structure of the colloid in the raw fiber is greatly changed by mainly using the alkaline pectin lyase, the alkaline polygalacturonase and the dilute alkali liquid, such that the stability of the colloid complex is severely damaged, and the alternating and circulating of swelling-modifying-colloid removing can be formed so as to achieve rapid hemp fiber degumming, reed pulping, cotton straw pulping and other purposes at the normal temperature.

The invention relates to a preparation method of a degumming agent, and belongs to the technical field of glue cleaning. The bio-enzyme and the citric acid-sodium citrate buffer solution are mixed, the inorganic solvent sodium peroxide, the organic solvent ethylene glycol carbonate, the auxiliary sodium tripolyphosphate and the surfactant are combined to prepare the environment-friendly degummingagent, the degumming efficiency is high, and degumming is thorough; the bio-enzyme is an organic matter which is generated by living cells and has a catalytic effect, most of the bio-enzyme is protein, a small part of the bio-enzyme is RNA, degumming by a bio-enzyme method is to catalyze and hydrolyze colloid by directly utilizing a bio-enzyme preparation or extracted degumming enzyme liquid, degumming is realized, the process is simple, and the operation is flexible; and the organic solvent in the degumming agent is used for dissolving and dispersing the glue, reducing the molecular weight and viscosity, dispersing the glue into microparticles and stripping the residual glue.

The invention relates to an auxiliary article for a rhinestone grinding process, in particular to gluewater for bonding with a rubber plate in a rhinestone grinding process. The gluewater is prepared from the following ingredients in percentage by mass: 40 to 45 percent of water, 6.5 to 7 percent of polyvinyl alcohol, 1 to 1.4 percent of emulsifiers, 0.8 to 1.0 percent of ammonium persulfate, 0.8 to 1.2 percent of acrylic acid, 2 to 4 percent of methacrylic acid, 35 to 40 percent of vinyl acetate, 2 to 4 percent of butyl acrylate, 3.0 to 3.4 percent of dibutyl phthalate and 0.6 to 1.0 percent of sodium bicarbonate. After rhinestones are pasted on the rubber plate and are dried, no smoke and no pungent smell are generated; the environment is protected; no pollution is caused; the firmness is high; the stability is high; meanwhile, after the grinding is completed, the glue can be fast removed only through water soaking; the cleaning of the rhinestone can be convenient; the manufacturing is convenient; the manufacturing cost is low.

The invention discloses an ultrasonic multi-effect mixer for edible oil, which adopts the design of an upper cavity and a lower cavity, wherein the upper one is a dispersing cavity, and the lower one is a mixing cavity. The mixed solution entering in the dispersing cavity performs radial and axial circulation under the reverse pushing of a stirring blade, and with the influence action of a baffle in the cavity, the treatment effect of dispersing and mixing is completely achieved, and the requirement of micromixing is achieved. The ultrasonic wave generated by an ultrasonic generator arranged in a barrel body can be used for assisting in degumming, when an ultrasonic field passes through a uniform gum dispersion system, gum grains move towards the direction of the crest or the trough of the ultrasonic wave, and then perform breakage and collapse to demulsify, and the cavatition effect of the ultrasonic wave causes the changes of a medium, a substrate, and the generation structure and properties of an enzyme in an enzyme reaction system, and then causes the exposure of the action centre of the enzyme; effective binding between the substrate and the enzyme is promoted, thus improving the catalytic activity of the enzyme; and via the arrangements of multi-stage mixing and the ultrasonic generator, edible crude oil achieves the effect of a high degumming speed.

The invention discloses a process method for regenerating flame-retardant plastic particles from waste powder coating. The invention belongs to the technical field of recycled plastics. The prepared recycled plastic particles have obvious cost advantages; particularly, the price of plastic raw materials rises greatly recently; the requirements of the market on reclaimed materials are further improved; according to the invention, the requirements can be greatly met; the conversion and metabolism rules of material energy in the recycling process of the waste powder coating are utilized; the regeneration process does not comprise the melting extrusion molding granulation of the conventional regenerated plastic particles, so that the high manufacturing cost and complex process procedures of equipment such as an extruder are reduced, the labor is saved, the labor and the cost are greatly reduced, and the prepared regenerated plastic particles have extremely high economic added value.

The invention relates to fixing glue for cutting a silicon crystal as well as a preparation method and application thereof. The fixing glue is prepared form anaerobic glue and a surface accelerator, wherein the anaerobic glue is a single-component sealing adhesive prepared by utilizing an oxygen free radical polymerization inhibition principle; the anaerobic glue has the advantages of good curingspeed, storage stability, bonding strength, chemical medium resistance, easy for degumming and the like, so that the anaerobic glue is used for cutting and fixing various gemstones and crystals in recent years; the anaerobic glue prepared in the scheme has high bonding strength, a rapid curing speed and rapid and complete degumming, and damages to cut gemstones and adhesion strength are not easy to cause; the dosage of organic silicon polyether acrylate, linear cycloaliphatic epoxy resin and tert-butyl peroxybenzoate is increased and part of organic silicon groups are introduced, so that the flowability of the anaerobic glue is reduced, rapid degumming is convenient to realize and adhesion between the anaerobic glue and the crystal is reduced; compared with free silicon including silicon dioxide and the like, the organic silicon groups do not easily form other silicon impurities on the surface of the crystal in a curing and adhesion or degumming process.