33results about How to "Improve degumming problem" patented technology

The invention relates to a degumming method for hemp fiber, in particular to a method for combined application of chemical with super critical CO2 fluid degumming. Wherein, before carrying out super critical CO2 fluid degumming, the hemp fiber first goes through chemical treatment, then super critical degumming is carried out under low and hi pressure respectively. The invention can obviously reduce the non-cellulose composition for example lignin, etc. in hemp fiber, is of an ideal degumming effect, with obviously improved cellulose ratio, very good softening effect of fiber, hence improved process quality of hemp fiber; the invention additionally overcomes the shortcoming associated with prior degumming way such as high pollution, etc., and is of high economic efficiency.

A horizontal and super combined beehive comprises a wide-comb box, a frame support, a powder-releasing cover, a pollen box, a connector, a degummed drape, an inserted frame, an integrated frame and a wax comb foundation with suspension loops. The wide-comb box is characterized in that the both ends of the box are used as the breeding areas for two swarms of bees, a super is supported above the middle production area, frame queen excluders are used to form a working bee centralized production area, the areas are covered; the powder-releasing cover is bottomless, pollens and honey on a powder-leaking railing pedal with anti-theft gantry boxes on both sides directly leak in the pollen box at the bottom; the connected box is coarsely adjusted by a multi-teeth hook and finely adjusted and connected firmly by a screw crow bar through screws; the laps and edgings of the inserted frame are integrated, an upper beam and a lower beam are inserted in the upper and lower grooves of two edgings to integrate, the upper beam is thin, the lower beam and the edgings are provided with grooves to be inserted in the comb foundation; a wide hook with the same width and an adjuster are hung on the wax comb foundation for tightening; the laps are integrated with a frame-distance clip and connected with the upper beam through a downward slope, the tops of comb-forming frame supports are butted to each other and are tightly pressed by the degummed drape and the inner frame of the box cover, the distance of the frames is standard so that people can not stung by bees; and the top of each lap is provided with a handle, thus the laps can be fast gripped outside the box. The wide-comb box can be used to multiply the efficiency, thus being suitable to be used for beekeeping around the world.

The invention discloses a nano-imprint template. The nano-imprint template comprises a template main body, a plurality of photoresist microstructures and a fluorine rubber polymer layer, wherein the plurality of photoresist microstructures are arranged on the template main body; the fluorine rubber polymer layer coats outer layers with the photoresist microstructures; a bonding effect exists between the fluorine rubber polymer layer and the template main body, so that the fluorine rubber polymer layer is fixedly connected to the surface of the template main body. The nano-imprint template disclosed by the invention can play a role in protecting the photoresist microstructures in order to prevent the nano-imprint template from being deformed during use, so that the process quality of nano-imprint is enhanced; moreover, the oil resistance and corrosion resistance of the imprinting surface of the nano-imprint template can be improved, the surface has lower surface energy, and the problemof degumming can be effectively improved in an imprinting process. The invention also discloses a making method of the nano-imprint template and application of the nano-imprint template to making of amicro-structure substrate. Through the application method, the microstructure dimension and shape of a formed microstructure substrate can be ensured.

The invention discloses a detachable epoxy adhesive for multi-wire cutting. The detachable epoxy adhesive comprises two components A and B, wherein the component A and the component B are matched according to a mass ratio of 1 to 1, and the component A is prepared from the following raw materials by mass percent: 30-60% of epoxy resin, 5-10% of toughener, 15-30% of filler, and 1-3% of blue pulp; the component B is prepared from the following raw materials by mass percent: 15-50% of polythiol curing agent, 10-30% of modified amine curing agent, 1-2% of accelerator, 1-5% of diluent, 15-30% of filler, and 1-3% of yellow pulp. The detachable epoxy adhesive disclosed by the invention has the beneficial effects that: 1, the components A and B have low viscosity after mixing and have excellent handleability; 2, the surface drying time of the components A and B is fast after mixing, thereby meeting the high efficiency requirements of the photovoltaic industry; 3, after the end of the cutting,a silicon wafer can be degummed faster and the degumming efficiency is improved.

The invention discloses a specific acidic plastic plate for photovoltaic diamond wire cutting and a preparation method thereof. The plastic plate comprises the following raw materials: matrix resin and an auxiliary agent, and is prepared through the steps of raw material mixing, granulation, extrusion molding, polishing, cutting, detection, packaging and the like. The plastic plate prepared by theinvention meets the requirement of a large circulation system of a diamond wire cutting process, is easy to recycle, can be recycled, and meets the environmental protection requirement of continuousutilization; in a silicon rod cutting process using the diamond wire, impurities adhering to the diamond wire are reduced, the abrasion probability of the diamond wire is reduced, the cost is saved, the superior product rate of silicon wafers is increased, and therefore the production efficiency is effectively improved. Compared with the prior art, the prepared plastic plate is better in shore hardness and equivalent in pH value and conductivity, and has remarkable progress.

The invention relates to a primer, a polymer pre-laid waterproof coiled material and a preparation method, the polymer pre-laid waterproof coiled material comprises a base material layer, a primer layer, an adhesive layer and an anti-sticking layer which are sequentially stacked, and the raw material formula of the primer adopted by the primer layer comprises a first emulsion and a second emulsion, the first emulsion is one or a combination of more of a butadiene-acrylic acid copolymer emulsion and a butadiene-methacrylic acid copolymer emulsion, and the second emulsion is rubber latex. Compared with an existing high-molecular pre-laid waterproof roll, the high-molecular pre-laid waterproof roll has the advantages that by using the specific primer, the degumming rate is greatly reduced in the using process; and meanwhile, compared with the existing high-molecular pre-paved waterproof roll, the high-molecular pre-paved waterproof roll disclosed by the invention also has excellent dimensional stability and tensile strength retention rate after high-temperature thermal aging.

The invention discloses a multi-color network combination processing process for mulberry silk and belongs to the technical field of mulberry silk materials. The processing process includes: degumming, wherein the specification of the to-be-degummed mulberry silk is 23dtex raw mulberry silk f1*5 380twist/meterS, the degumming includes semi-degumming and biological enzyme processing which are performed on a cone dyeing machine, the components of the semi-degumming include a refining agent with the mass concentration being 2g/L and sodium carbonate with the mass concentration being 1g/L, the bath ratio is 1:18, semi-degumming temperature is 95 DEG C, and semi-degumming time is 30 minutes; the biological enzyme processing uses silk liquid protease with the activity being 16.0KNPU/g and the mass concentration being 4g/L, biological enzyme processing temperature is 45 DEG C, and biological enzyme processing time is 90 minutes; dyeing; spooling; performing network combination, wherein threeboiled-off mulberry silk of different colors are subjected to network combination on a network combination machine, processing speed is 800rpm, nozzle air pressure is 0.3MPa, network tension is 14CN,and the three-color network silk with 2 network nodes per centimeter and the specification being 23dtex boiled-off colored mulberry silk f1*5 380twist/meterS*3 is obtained after the network combination. By the processing process easy in processing, the obtained mulberry network silk is small in strength loss.

The tea oil production equipment comprises a hydration tank main body, an oil foot box and a vacuum drying tank, an oil inlet pipe and an ingredient inlet pipe are arranged at the top of the hydration tank main body, a filter plate is installed on the lower portion in the hydration tank main body, and the interior of the hydration tank main body is divided into a stirring area and a settling area by the filter plate; a stirring device and a rotary drum are installed in the stirring area, the stirring device is located in the rotary drum, the portion, at the bottom of the stirring area, of the hydration tank body is connected with the vacuum drying tank through an oil outlet pipe, an annular partition plate is fixed in the foots box, and a centrifugal barrel is rotatably installed in the middle of the annular partition plate; the interior of the oil foot box is divided into a top oil cavity and a bottom oil foot cavity by the annular partition plate. The degumming and impurity-removing device has the advantage of good degumming and impurity-removing effects, and can be used for fully separating oil foots.

The invention discloses a 3D (three-dimensional) cell culture material and application thereof. The 3D cell culture material comprises PEG (polyethylene glycol) 8000@Fe<3>O<4>, PEG400@Fe<3>O<4> and NH2@Fe<3>O<4>. The 3D cell culture material and the application have the advantages that the pH (potential of hydrogen) of micro-environments and the activity and the concentration of cell factors can be kept by the 3D cell culture material for a long time, and accordingly the 3D cell culture material is favorable for fast growing and proliferating cells and maintaining the activity of the cells; the cell factors can be conveniently and easily fixed by the aid of nano-particles NH2@Fe<3>O<4> in the 3D cell culture material, and proteins of the cell factors can be combined with external residues of micelle by the aid of hydrogen bonds under the condition of low-concentration glutaraldehyde; the problem of low culture efficiency due to dissociation of proteins in water bases can be solved; excellent suppression and culture effects for tumor cells and stem cell differentiation can be realized by the 3D cell culture material; culture requirements of different primary mammal cells can be met.

The invention discloses a refining liquid for silk grey cloth. The refining liquid is composed of the following components in parts by mass of 3 parts of sodium carbonate, 12 parts of sodium silicate,15 parts of fatty acid polyoxyethylene ester, 25 parts of sodium carbonate, 8 parts of sodium dithionite, 5 parts of octyl phosphate, 5 parts of sodium hydrosulfite, 4 parts of dimethyl silicone oil,3 parts of penetrant, 1 part of orange oil and 150 parts of ionic water. The refining liquid for the silk grey cloth is convenient to refine and favorable for following-process dyeing.

The invention relates to the technical field of ink boxes, in particular to a tool facilitating ink box chip removal. The tool is characterized by comprising a first metal sheet and a second metal sheet; one end of the first metal sheet is inwards bent to form a hook-shaped shovel piece, the other end of the first metal sheet is connected with one end of the second metal sheet through a connecting piece, and the relative distance is formed between the other end of the first metal sheet and one end of the second metal sheet; and when the first metal sheet and the second metal sheet are compressed, the other end of the second metal sheet makes contact with the free end of the shovel piece in a connection manner. Compared with the prior art, the shovel piece can stretch in from the attached edge of a chip and clamp the chip for tearing, the shovel piece can be further heated, adhesion glue of the chip can be conveniently removed through the heat degree, and separating and tearing are easier.

The invention relates to a method for manufacturing a part layer-upon-layer using an additive manufacturing technology. The method comprises the following steps: printing the part together with an elastomeric enclosure shaped thereto leaving a gap free of material therebetween, the elastomeric enclosure comprising at least one opening; heating the ensemble of the printed part and elastomeric enclosure or keeping an operating printing temperature; applying vacuum by the at least one opening of the elastomeric enclosure so that the elastomeric enclosure deflates thus exerting pressure to the printed part; and maintaining the printed part under vacuum and heat during a predefined time. The invention also relates to a pressing system for printed parts manufactured layer by layer using additive manufacturing techniques.