147results about How to "Good water retention" patented technology

The invention discloses a special grouting agent for post-tensioned prestressed concrete beams of highway bridges and culverts and a preparation method thereof. The grouting agent comprises the ingredients of a water reducing agent, a plastic expanding agent, an expanding agent, a flowing deformation assistant, a water-retaining agent, a retarder, a defoamer, a superfine active mineral admixture and the like. Low ratio of water to glue (0.26-0.28), high fluidity (the initial fluidity being equal to or less than 17s), no bleeding (free bleeding rate in 24hours being 0%) and early expanding (free expanding rate in 3hours being 0-2%) of grouting materials are realized after the grouting agent is added, so that quality reliability and durability of post-tensioned prestressed duct grouting areimproved, the problems of non-full and incompact grouting in duct grouting are fundamentally solved and the service life of prestressed concrete structure bridges is prolonged to realize a qualitative leap of the grouting material performance.

The invention provides a sand modification method suitable for high-wind-erosion and high-water-erosion areas. The method includes: respectively drying various sludge rich in bacteria, various decayed straw, forest litter powder or forest soil rich in actinomycetes and fungi, organic flocculants at normal temperature, and mixing the same to obtain mixture, and storing; well mixing the mixture with local clay minerals, decomposed coal or humus soil, cross linking with water solution with cross-linking agent at normal temperature to form flocculent mixture, and crushing particles to form microorganism / microorganism cultivation medium cluster; mixing microorganism / microorganism cultivation medium cluster, plant straws, and soil with nitrogen-fixing bacteria, plowing with sand, and pouring 5-50 kilos of starch or molasses water solution to each mu of sand to activate microorganisms. The sand modified by the method is high in water retention, high in wind and water erosion resistance and low in cost.

A method of producing bread comprises the following steps: a) fermenting, utilizing lactobacilli and leaven to ferment flour and get sour dough, and making dough by adding xylo-oligosaccharide flour and the sour dough; b) shaping, shaping fermented dough; c) proofing, conducting the proofing on the shaped dough; d) baking, baking the proofed dough; e) cooling, cooling the baked dough to get the bread. The specific value of the bread made by adding the xylo-oligosaccharide is higher than that of the bread made by normal Saccharomyces cerevisiae, and the xylo-oligosaccharide can reduce the hardness of bread, so that the water retention of the bread is better, and the shelf life can be as long as 7 days. And the bread made by the method has the advantages of good quality, good taste, and rich nutrient content.

The invention provides a wet-type water-retaining property dustfall agent. The wet-type water-retaining property dustfall agent comprises, by weight, 0.2%-0.15% of starch grafting acrylate, 0.5%-2% of lauramidopropyl betaine, 0.01%-0.1% of cetyl trimethyl ammonium bromide, 0.2%-0.6% of sodium dodecyl sulfate, 0.3%-0.8% of sodium dodecyl benzene sulfonate, 0.1%-0.3% of sodium dodecyl sulfate, 0.4%-1.3% of sodium N-oleoyl-N-methyltaurinate, 0.02%-0.3% of dodecyl dimethyl betaine, 0.2%-0.6% of cocoanut fatty acid diethanolamide, 0.1%-1% of sooctyl alcohol sodium sulfate and the balance water. The wet-type water-retaining property dustfall agent is compressed by a hydraulic device and then forms mist spray to be sprayed to dust production points by nozzles, foam collides with dust particles in the air after being sprayed out, hence, high-concentration dust can be caught and settled, the surface tension of the water can be effectively lowered, the water spray can better wrap the dust, the high wetting water-retaining property is achieved, the dust concentration on an excavation working face can be effectively lowered, and the dust on the working face can be restrained for a long time.

The invention discloses composite soil for planting blueberry. The composite soil is prepared by mixing the following components in percentage by volume: 30-35 percent of arenosols, 15-20 percent of humus soil, 10-15 percent of turfy soil, 15-20 percent of cornstalk meal, 15 percent of vermiculite, 1 percent of zeolite and 4 percent of smoke charcoal; and meanwhile, the proportions of the arenosols and the humus soil are maintained at 50 percent in total, and the proportions of the turfy soil and the cornstalk meal are maintained at 30 percent in total. Furthermore, 1.0kg of sulfur powder and 1.5kg of decayed chicken manure are added into per cubic meter of soil. The invention provides a preparation method for planting the blueberry. The composite soil and the preparation method disclosed by the invention have the beneficial effects that after the composite soil is prepared for 1 month, the pH value is 4.0-4.2 and the organic matter content is 8-10 percent, namely, both the pH value and fertility of the soil can meet the growth requirements of the blueberry. The blueberry after being cultivated in the composite soil can vigorously grow.

The invention provides a grafting cultivation method for a tomato by using a sleeve pipe. The method includes the steps that (1) a flexible water retention material is used for making a tomato sleeve pipe, and the diameter of the tomato sleeve pipe is matched with a tomato grafting stem; (2) a tomato grafting stock and scion are inclined-cut, and cut faces of the stock and the scion are matched with each other; and (3) the tomato sleeve pipe is sleeved on the cut position of the stock, the scion is inserted into the tomato sleeve pipe, and a grafting clamp is clamped on the tomato sleeve pipe to be fixed. The cut face of the stock and the scion are matched with each other, contact is close, the external tomato sleeve pipe is used for fixing the stock and the scion, a water retention effect of the flexible water retention material on the grafted tomato is good, and after the grafted tomato is grown, the flexible plastics can be cracked open along with the growth of the tomato and do not need to be removed.

The embodiment of the invention provides a compound water retention agent used in potatoes and a preparation method thereof. The water retention agent is formed by blending the following raw materials according to the weight ratio: 2-12 of humic acid kalium, 14-36 of water retention agent, 16-24 of urea, 16-24 of calcium hydrogenphosphate, 8-12 of sulphuric acid potash fertilizer, 1 of lanthanum nitrate, 1 of yttrium nitrate, and 5-7 of cross linker. The compound water retention agent combines biology and physiology characteristics of the potatoes and adopts the moisture retention and slow release property on fertilizer of organic and inorganic water retention agent to improve the property of soil; nutritive elements, a mycorhiza agent, trace elements in the compound water retention agent are reasonably matched to prepare a special compound water retention agent suitable for potato plating in northern area; the compound water retention agent has good moisture retention and can promote anti-drought seedling formation and increasing yield of potatoes.

The invention provides a tendrils seedling soilless cultivation method, comprising the plural stages of seed selection, seed soaking, sowing, germinating, management in seedling period, and final harvesting and selling. The tendrils seedlings cultivated according to the method have fat leaves, and are green in leaf color, fast in growth, rich in nutrition and order in height.

The invention discloses a special carbon-based fertilizer for waxberry. The special carbon-based fertilizer is prepared by mixing the following components in percentage by weight: 25-32% of pig manure, 18-24% of biochar, 15-21% of potassium sulfate, 8-12% of urea, 3-6% of monoammonium phosphate, 8-10% of molasses, 1-1.5% of chitosan, 0.5-1% of borax and 6-8% of weathered coal. The special fertilizer prepared by combining organic and inorganic fertilizers has comprehensive and rich nutrients, and is rich in amino acid, calcium, iron, boron and the like besides massive nutrient elements such as nitrogen, phosphorus and potassium, so the special fertilizer has a good water and fertilizer holding effect and long-lasting fertility and can improve the quality of waxberry so that the waxberry has good mouthfeel, can be used for relieving diseases of waxberry and effectively reducing toxin and heavy metal residues.

The invention relates to a microporous film reinforced fluoric cross-linked doped ion-exchange film and a preparation method thereof, pertaining to the field of functional macromolecular composite materials. The ion-exchange film takes microposous film as reinforce, containing inorganic adulterant and uses fluoric ion-exchange resin to form a cross-linked film with a mesh structure. The ion-exchange film prepared by the method has the advantages of relatively high high-temperature electric conductivity and dimensional stability and as well as sound mechanical strength.

The invention discloses a grouting material for an assembly type building reinforcement connection sleeve. The grouting material is prepared from the following raw materials in percentage by weight: 45-60% of cement, 30-45% of fine aggregates, 1-2% of an enhancer, 0.05-0.1% of a de-foaming agent, 7-10% of a phosphogypsum composite expanding agent, 0.5-0.8% of a polycarboxylic acid water reducer, 0.05-0.09% of a retarder, and 0.08-0.2% of an early strength agent, wherein the phosphogypsum composite expanding agent is a mixture of modified phosphogypsum, phosphorus slag micro powder and wollastonite. According to the grouting material disclosed by the invention, continuously graded fine sand and quartz sand are used as fine aggregates to match with the cement for use, the fine aggregates andthe cement are reasonably proportioned, and the phosphogypsum composite expanding agent is added, so that cement paste is very compact after being hardened; the grouting material is greatly improvedin strength, is matched with the enhancer, the retarder, the polycarboxylic acid water reducer and the early strength agent for use, so that mortar has good water-retaining property, plasticity and flexibility; and tensile bonding strength as well as mortar and brickwork tensile bonding strength are obviously improved, comprehensive properties are good, and using requirements of an assembly type building are met.

The invention relates to a preparation method of salt-resistant water-absorbent resin with a high water absorption rate. The preparation method comprises the following step: copolymerizing monomers acrylic acid and 2-acrylamide-2-methyl propanesulfonic acid through a free radical polymerization method by taking water as a solvent, taking an ammonium persulfate and tetramethyl ethylenediamine redox system as an initiator, and taking N, N'-methylene bisacrylamide and nanosilicon dioxide as cross-linking agents to obtain the salt-resistant water-absorbent resin with the high water absorption rate. The salt-resistant water-absorbent resin with the high water absorption rate is applied to the fields such as agriculture, forestry, medicines, hygienic materials, buildings, daily-use chemical industry, food and environmental protection. According to the method disclosed by the invention, synthesis reaction conditions are mild, materials are easily available, cost is low, monomer conversation rate is high and product treatment is convenient. The prepared salt-resistant water-absorbent resin in high in water adsorption amount, and has a water-absorption multiple about 2000 times at most within 1 minute in pure water, and the water-absorption multiple of 1800 times at most within 1 minute in normal saline; besides, the resin has good adaptation for different application conditions, and is convenient to popularize and apply.

The present invention discloses a stucco gypsum, which is to mix calcined gypsum powder, retarder, cement compound, water-keeping, calcareous and grain sand together according to the stated molar percent; the calcined gypsum after being weighted is put into a mixing machine for mixing; and then the retarder, cement compound, water-keeping, calcareous are put into the mixing machine to mix with the calcined gypsum powder enough; finally, the grain sand is put into the mixing machine to be mixed for ten minutes. The stucco gypsum in the present invention has an especial and excellent water-keeping ability, felting ability and self-dilating compensation function, which can avoid heaving and cracking with low cost; the method can be popularized greatly.

The invention discloses a quick-acting biological organic fertilizer capable of improving agricultural soil, which comprises the following components in parts by weight: 20-35 parts of grass carbon, 15-20 parts of urea, 12-15 parts of ammonium sulfate, 5-9 parts of potassium polymetaphosphate, 1-3 parts of potassium pyrophosphate, 4-8 parts of magnesium phosphate, 0.5-1.5 parts of chitosan, 1-3 parts of phosphate, 5-9 parts of potassium dihydrogen phosphate, 4-7 parts of dipotassium hydrogen phosphate, 8-12 parts of verticicladiella powder, 0.1-0.2 part of Bacillus thuringiensis powder, 0.1-0.2 part of Aschersonia powder, 0.3-0.5 part of bacillus thuringiensis var. powder, 1-3 parts of Cortex Fraxini and 1-2 parts of stemona. The fertilizer has the advantages of favorable water absorptivity and favorable water retention property, contains comprehensive nutrient elements required by plant growth, and can improve the physical behaviors of soil and restore the soil productivity.

Soil which is soft, good in water retention and rich in organic matters is suitable for peanut planting. According to the characteristic, a plurality of soil improving agents, such as shell powder, diatomite and Chinese medical stone powder, are compounded with organic fermented matters and then adopted as a coating component of fertilizer particles, chemical mineral components coated with a coating agent prepared mainly from resin are adopted as an inner core, and the resin slowly degrades to form a porous structure and to slowly release the inner mineral elements after the resin enters soil layers, thus avoiding frequent fertilizing. Peanut needs water, but is not water-tolerant, and waterlogging influences permeability, and therefore fine-hole silica gel is added, and the fine-hole silica gel can be used for pump grinding, and can absorb water vapor after entering soil layers. Improved soil is loose, and is beneficial to peanut expanding and growing, thus increasing the yield.

The invention discloses a water retention and sustained-release combined cup fertilizer, which comprises a water retention fertilizer and a sustained-release fertilizer, wherein the water retention fertilizer is prepared by mixing a dried base stock formed by plant fibers and a quick-acting water-soluble fertilizer, konjaku flour and a bonding agent; the water retention fertilizer and the sustained-release fertilizer which are in a solid columnar shape are put in a fertilizer cup, the water retention fertilizer is positioned on the upper part of the fertilizer cup, and the sustained-release fertilizer is positioned on the lower part of the fertilizer cup; and a cavity is formed in the center of the water retention fertilizer. By the combined cup fertilizer, moisture and fertilizer nutriments which are required by seedlings during the initial period of field planting and the fertilizer nutriments required by plants during the growth period in the future are combined together, the moisture and fertilizer nutriments which are required by the plants can be provided only by watering and fertilizing once, and thus, the invention has the advantages that the combined cup fertilizer has good effects of water absorption and storage and high the drought resisting performance, is environment-friendly and does not pollute water sources and soil; and due to the utilization of rejected materials serving as raw materials, the combined cup fertilizer has low cost and is economical and practical, is time-saving and labor-saving in production and application, can be produced by standard assembly production lines, is easy to operate and control and the like, and has the excellent social and economic benefits.

The invention provides a production technology of a special organic fertilizer for peanut. The processing line comprises the following steps: mixing and fermenting peanut vine, shell powder, water hyacinth, cow dung and a biological fungus block; treating with earthworms; and finally fermenting earthworm feces, azadirachta indica branches, blumea balsamifera and rape seed cakes to prepare the special fertilizer for the peanut. The peanut vine is adopted as the main raw material of the special organic fertilizer for the peanut; through a series of treatments with biological bacteria, earthworms and the like, various elements in the peanut vine are converted into a combined-state which is easy to absorb by plants; meanwhile, the elements and the content are similar to the elements required for peanut growth and the quantity demand of the elements; the production technology can meet the growth requirements of the peanut; organic matters are fermented twice and are digested by the earthworms once; and the formed organic matters are high in content, easy to dissolve into soil and easy to absorb by plants.

The invention belongs to the technical field of adhesives, and relates to an environment-friendly composite plant adhesive, which comprises, by weight, 20-30 parts of pre-gelatinized tapioca starch, 15-25 parts of guar gum, 3-8 parts of acacia gum, 2-5 parts of seaweed powder, 5 to 10 parts of lignin, 6 to 12 parts of acrylic emulsion, 5 to 10 parts of phenolic epoxy resin, 10 to 16 parts of water-soluble urea-formaldehyde resin, 8 to 16 parts of a curing agent and 5-8 parts of an auxiliary agent; and the composite plant adhesive has high adhesive strength and good water resistance.

The invention provides a preparation method and application of a digital inkjet printing fabric pretreatment agent. The pretreatment agent mainly comprises oxidized starch, xanthan gum, edible fine salt, propylparaben and sodium hexametaphosphate and is suitable for the digital inkjet printing of a cotton fabric and a nylon fabric; and the fabrics can be subjected to inkjet printing on an inkjet printing machine by using dye ink or pigment ink after being treated, a product has beautiful color and luster, and a printing outline has high fineness and high definition.