4420results about How to "Good hygroscopicity" patented technology

A method for increasing mechanical strength of a dielectric film includes: providing an initial dielectric film containing porogen; irradiating the initial dielectric film with first UV light having a first wavelength which is substantially or nearly similar to a maximum light absorption wavelength of the porogen for removing the porogen; and then irradiating the porogen-removed dielectric film with second UV light having a second wavelength which is shorter than the first wavelength, thereby increasing mechanical strength of the dielectric film.

Compounds and compositions comprising specific metal salts of bicyclo[2.2.1 ]heptane dicarboxylate salts in order to provide highly desirable properties within polyolefin articles are provided. The inventive salts and derivatives thereof are useful as nucleating and/or clarifying agents for such polyolefin, provide excellent crystallization temperatures, stiffness, and calcium stearate compatibility within target polyolefin. Also, such compounds exhibit very low hygroscopicity and therefore excellent shelf stability as powdered or granular formulations. Polyolefin additive compositions and methods of producing polyolefin with such compounds are also contemplated within this invention.

Compounds and compositions comprising specific metal salts of bicyclo[2.2.1 ]heptane dicarboxylate salts in order to provide highly desirable properties within polyolefin articles are provided. The inventive salts and derivatives thereof are useful as nucleating and/or clarifying agents for such polyolefin, provide excellent crystallization temperatures, stiffness, and calcium stearate compatibility within target polyolefin. Also, such compounds exhibit very low hygroscopicity and therefore excellent shelf stability as powdered or granular formulations. Polyolefin additive compositions and methods of producing polyolefin with such compounds are also contemplated within this invention.

A closed multi-room fluidized bed sludge drying method is provided, which is a sludge drying method having the advantages of simple equipment structure, convenient operation, strong sludge adaptability, high thermal efficiency, safety, continuity, stability, etc. After the mechanically dewatered sludge is mixed with the back-mixed sludge, the mixture is dried room by room in an inert particles multi-room fluidized bed dryer (3). The first room and the second room of the inert particles multi-room fluidized bed dryer (3) adopt inert particles (f) as heat storage medium. Gas from a cyclone separator (5) goes through a spray tower (7) and returns into an air heating unit (4) through a circulating fan (10). Part of dried sludge (e) at the lower part of the cyclone separator (5) enters the inert particles multi-room fluidized bed dryer (3) through the back-mixing in a mixer (2). Waste liquid from the bottom of the spray tower (7) enters a waste liquid circulating pool (8), with part of waste liquid circulating into the spray tower (7) and part into a sewage treatment system.

The present invention discloses a carrier type slowly-released fertilizer and its preparation method. It not only has basic composition of general chemical fertilizer, but also contains carrier material, and its preparation method includes: firstly, dissolving carrier material with a certain quantity in water, then mixing general chemical fertilizer with it according to a certain proportion, uniformly stirring them to make them implement full reaction, adding cross-linking agent, making them implement further full reaction, removing water, finally pulverizing dried material and granulating.

The invention discloses a method for producing a biocarbon-based slow-release nitrogen fertilizer, which is characterized by comprising the following steps: thermal cracking or gasifying corn straw, or apple tree waste branch, trunk and wood chip to obtain the biocarbon; mixing the biocarbon and an ammonium nitrate solution, or urea and the ammonium nitrate solution, fully stirring and drying, or adding a binder with 1-3% of total amount and sending to a granulation system for granulation, then drying to obtain the biocarbon-based slow-release nitrogen fertilizer product. The fertilizer has the advantages of simple and easy preparation technology, and low cost. The biocarbon-based slow-release nitrogen fertilizer contains 10-12% of nitrogen, the biocarbon carrier material is stable in soil, and is a good soil amendment and a carbon sequestration agent, soil is applied for improving soil fertilization, the nitrogen element of the nitrogenous fertilizer loaded by the biocarbon has slow-release effect, so that the loss of the nitrogen element can be reduced, the nitrogenous fertilizer utilization rate can be enhanced; the biocarbon can retain in soil for long-term to play the effects of carbon sequestration and carbon emission reduction, the biocarbon is helpful for alleviating climate warming, and biocarbon-based slow-release nitrogen fertilizer is a green fertilizer.

The invention provides a method for producing a bamboo fiber, comprising the following steps of sawing off, splitting and softening the bamboo, sending the bamboo material to a bamboo splitting separator to realize combing, splitting separation and airflow classification, thus obtaining the bamboo filament fiber; cooking and drying the bamboo filament fiber, cleaning, dehydrating, oiling and drying the bamboo filament fiber subsequently; and carrying out the enzyme treatment, thus obtaining the coarse bamboo fiber; subsequently carrying out fine treatment, cleaning and dehydrating, bleaching, cleaning, dehydrating, oiling, drying and curing by emulsion, thus obtaining the fine bamboo fiber. The method has high production efficiency, low processing cost and can prepare the bamboo fiber with the diameter within 0.03-0.15mm and the length within 30-300mm.

The invention relates to a formaldehyde adsorbent and a preparation method. The formaldehyde adsorbent consists of a basis material, a high molecular organic amine polymer and a polylol polymer, wherein the high molecular organic amine polymer and the polylol polymer account for 1 to 50 percent of the formaldehyde adsorbent, and the balance being the basis material. The preparation method for the formaldehyde adsorbent comprises steps of preparing formaldehyde reagent, preprocessing the basis material, solidifying and forming, and the like. When the formaldehyde adsorbent adsorbs formaldehyde, formaldehyde gas can quickly enrich on the surface of the formaldehyde adsorbent, and carries out chemical reaction to generate substances harmless to human body, so as to achieve the effect of uninterruptedly and thoroughly removing the formaldehyde; the adopted raw materials are nontoxic and harmless; the preparation technology has simple and easily controlled process; and the prepared formaldehyde adsorbent is safe and environment-friendly, and has no secondary pollution.

The invention relates to a waterproof and moisture-permeable coating agent composition, wherein, a certain amount of microporous lignocellulose fine powder is added into the coating agent with waterproof function, so that the coating agent has moisture permeable performance. The waterproof and moisture-permeable coating agent composition which is used as the coating agent for non-woven fabric, knitted fabric or woven fabric can be made into coated fabric and synthetic leather with waterproof and moisture permeable performances. Compared with the prior at, the invention has the advantages that: 1. the raw material is easy to be added, the process is available with high adaptability, no need to add new equipment; 2. on the premise that the waterproof performance is not decreased, the amount of moisture permeated is increased obviously and the anti-adhesion is improved; 3. the coated fabric and superfine fiber and artificial cover synthetic leather made by the invention has the advantages of fine moisture permeability, high resistance to water pressure and that the physical performance does not decrease.

The invention discloses a one-way moisture guiding and absorbing and heating knitted fabric and a manufacturing method thereof. The fabric is knitted from first yarn, second yarn and third yarn, the first yarn is covering yarn, the second yarn is polyurethane elastic fiber yarn or polyolefin elastic fiber yarn, and the third yarn is cotton fiber blended yarn or all cotton yarn. The fabric is of a three-layer structure composed of an outer layer, a middle layer and an inner layer, the outer layer is knitted from the first yarn, the middle layer is knitted from the second yarn, and the inner layer is knitted from the third yarn. The manufacturing method of the fabric sequentially comprises the following steps of 1, yarn preparation; 2, weaving on a machine; 3, blank inspection; 4, loose fabric cylinder matching; 5, pre-sizing; 6, pretreatment; 7, dyeing; 8, soaping; 9, acid pickling; 10, in-cylinder softening; 11, dehydrating and drying; 12, re-sizing; 13, polished blank inspection. The fabric has a one-way moisture guiding function and achieves moisture absorbing and heating functions.

The invention provides moisture-absorbing and flame-retardant copolyester, which comprises terephthalic acid (PTA), other aromatic dicarboxylic acid or ester derivatives, aliphatic diol containing C2 to C6 atoms, a phosphorus flame retardant, moisture-adsorption group containing monomers, copolymer which is polymerized by flexible-chain monomers and contains ether bonds, a heat stabilizer and an anti-oxidation and uvioresistant additive. The textile fabric, which is prepared by spinning the synthesized moisture-absorbing and flame-retardant copolyester, has favorable moisture-absorbing and flame-retardant functions, and greatly improves the wearing comfort and safety flame retardancy of the polyester fabric.

The invention provides an OLED panel, a manufacturing method thereof and an encapsulation effect detection method. According to the encapsulation effect detection method, hygroscopic expanded high polymer materials are utilized and mixed with metallic salt compounds to form a humidity sensitive discolored film; because the hygroscopic expanded high polymer materials have good hygroscopicity, the humidity sensitive discolored film can be used as drying agents in a sealed space of the OLED panel so as to prolong the service life of the OLED panel; meanwhile, part of metallic salt compounds react with water vapor to become hydrates, and then the color changes, so the encapsulation effect can be judged according to changes of the color of the humidity sensitive discolored film after moisture absorption; moreover, it can be simply judged whether encapsulation fails through visual inspection; an infrared spectrometer can also be utilized to accurately detect the water vapor content in the sealed space of the OLED panel, and then the encapsulation effect can be accurately judged. Meanwhile, the OLED panel used in the encapsulation effect detection method is easy to manufacture and easy to realize.

The invention relates to a fresh-keeping packaging material and products thereof, belonging to the technical field of packaging. The invention has the technical scheme that a certain proportion of mineral micropowder of kieselguhr or sepiolite or medical stone or bentonite or tephros or perlite and the like is doped into plastics of PE, PP, PVC and the like and paper pulp, and then the mixture is made into thin films, packaging paper or packaging bags or packaging boxes or packaging cases, trays and the like; the characteristics of dispersity, air permeability, adsorbability, far infrared ray and positive and negative ion function and the like of the mineral micropowder are utilized to enable the packaging material to generate micropores, and therefore, the packaging material has a certain air permeability and adsorbability or generates positive and negative ions or far infrared rays; gas and a small quantity of moisture which are generated from packaged articles are discharged from the micropores, and harmful gas is absorbed and transferred, and thereby, the heat value of the packaged articles can be effectively lowered; microbes are killed or restrained, thereby meeting the demands of keeping fresh of live and fresh food and prolonging storage life.

The invention provides fish skin collagen based composite sponge and a preparation method thereof. The fish skin collagen based composite sponge is prepared by the steps of: based on fish skin collagen and chitosan as raw materials, freeze-drying, carrying out cross-linking, and carrying out secondary freeze drying. The composite sponge prepared by the invention can improve the disadvantages that the previous sponge is easy to degrade and the like, is simple in preparation process, is cheap and easy to obtain, and overcomes some defects of the existing collagen sponge. The fish skin collagen based composite sponge prepared by the invention has a specific three-screws structure of an I type collagen protein; a microstructure is a double-faced porous net-shaped sheet layer; and the fish skin collagen based composite sponge has good hygroscopicity, improves the degradability of the collagen sponge, is simple in preparation process and is cheap and easy to obtain, so that the fish skin collagen based composite sponge is a better biomedical material.

The invention provides a preparation method of a nano-silver-containing sodium alginate based antibacterial medical dressing, and relates to an antibacterial medical dressing with sodium alginate as a main raw material, solving the problems that the air permeability is poor, the wettability is low, the antibacterial performance is not realized and the like in the existing dressing and a preparation method thereof. The medical dressing provided by the invention is composed of silver nanoparticles, sodium alginate and an interpenetrating polymer network film. The preparation method provided by the invention comprises the following steps: I, preparing nano-silver loaded sol; II, preparing a sodium alginate solution loaded with silver nanoparticles; III, preparing a crosslinked polymer solution; IV, preparing a mixing solution used for processing the dressing; V, preliminarily processing and forming the dressing; and VI, preparing the nano-silver-containing sodium alginate based antibacterial medical dressing. The dressing is able to quickly control major bleeding, has antibacterial performance, is outstanding in moisture absorption performance, high in moisture-vapor transmission and biocompatibility, and biodegradable, has the capacity of promoting wound healing and is low in price, simple and convenient to operate, and suitable for mass production.

The invention relates to a complex antibacterial fiber, a fabric and a preparation method thereof, in particular to an irradiation grafting coordination group on the surface of the fiber and on the surface of the fabric, the complex antibacterial fiber loading antibacterial components Ag, Cu and Zn and the composition thereof, the fabric and the preparation method thereof. The method improves the mobility of the antibacterial components in a fiber surface liquid film, has favorable sterilization effect and antibacterial effect, is suitable for modification of organic polymer fibers and fabrics of various types and preparation of corresponding broad-spectrum antibacterial fibers and fabrics, does not generate negative influences on the hygroscopicity, the air permeability and the mechanical properties of the fibers and the fabrics, has simple preparation technology, and is convenient to realize industrialization and lower the production cost.

A polyester woven sheeting material including a set of 100% polyester warp yarns and a set of 100% polyester weft yarns, wherein the warp and weft yarns are interlaced to form the sheeting material. The warp and weft yarns comprise of air-jet spun polyester fibers that wisk moisture away from an individual laying on the woven sheeting material and, therefore, provide a quick-drying, breathable woven sheeting material which simulates the absorbency characteristics of cotton yarns. The set of polyester warp yarns and the set of polyester weft yarns may be interlaced to form a ground fabric, where a set of polyester pile yarns may then be interlaced with the ground fabric so that the pile yarns extend outwardly (e.g., forming a plurality of loops) on the front side, back side, or both sides of the ground fabric.

The invention discloses a corrosion-resistant hygroscopic coat and a preparation method thereof. The coat comprises an upper layer and a lower layer, wherein the lower layer is a corrosion-resistant ground coat, and the upper layer is a hygroscopic surface coat. The preparation method of the coat comprises the steps of: (1) coating water-based corrosion-resistant ground paint A on a base material, and drying the paint A to form a corrosion-resistant ground coat with the thickness being 0.1-5.0g/m<2>; and (2) cooling the corrosion-resistant ground coat, coating water-based corrosion-resistant ground paint B on the corrosion-resistant base coat, and drying to form a hygroscopic surface coat with the thickness being 0.5-100g/m<2> so as to obtain a corrosion-resistant hygroscopic coat on the base material. The invention is simple in preparation process, suitable for continuous production, high in production efficiency, and environment-friendly, so that the good binding force is formed between the formed coats and the base material and among the coats, and obtained material is good in hygroscopicity, corrosion resistance and heat transfer, attractive in appearance, stable in performance, and suitable for the preparation of a rotating wheel of a dehumidifier.

The invention discloses a preparation method of a high-imitation cotton printed fabric. The preparation method comprises the following steps: (1) weaving cloth; (2) sizing and oiling; (3) desizing and refining; (4) reducing alkaline amount; (5) shaping; (6) sanding; (7) printing; (8) post-shaping and drying; and (9) absorbing moisture, sweating and finishing. According to the preparation method, superfine denier fiber is used for weaving; warps and wefts adopt high-fischer yarns; compared with normal polyester cotton fabric, the high-imitation cotton printed fabric s better in moisture absorption and air permeability, and smoother in hand feeling; according the preparation method, raw material selection and structure design are used; and the processes of loosing and desizing, shaping, sanding, padding, absorbing moisture, sweating and finishing are used for preparing the high-imitation cotton printed fabric; the preparation method is simple and practical in process and strong in adaptability; the overall process has the characteristics of obviously saving energy and water; test of performances of colour fastness, strength and anti-static property proves that the high-imitation cotton printed fabric completely achieves the effect of the cotton.