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266 results about "Fibre content" patented technology

High-strength short fiber carbon ceramic brake disc and preparation method thereof

PendingCN119490353ASmall and uniform particle sizeevenly dispersedBraking discsActuatorsCeramic compositeBall mill
The invention discloses a high-strength short fiber carbon ceramic brake disc and a preparation method thereof, and the preparation method comprises the following steps: carrying out ball milling on silicon powder and carbon powder, mixing with thermosetting resin powder and thermoplastic resin powder, uniformly mixing carbon fiber and a coupling agent, adding the mixed powder, and uniformly mixing again. According to the short fiber carbon ceramic brake disc provided by the invention, the ball-milled silicon powder and carbon powder are uniformly dispersed in the matrix, meanwhile, the thermoplastic resin with good fluidity is added to form a network structure in the matrix, through holes are formed after carbonization, and the high-strength short fiber carbon ceramic brake disc is obtained. Silicon steam can enter in the ceramization process, and the problem that the carbon-ceramic composite material which is high in fiber content and large in thickness and formed at high temperature and high pressure is difficult to infiltrate can be effectively solved. The carbon-ceramic short fiber brake disc prepared by the method is low in aperture ratio and high in impact strength.
Owner:HUNAN SHIXIN NEW MATERIALS CO LTD

Fabric polyester fiber detection method based on spectral imaging and curve fitting

PendingCN119555613AEfficient online detectionSolve background distractionsImage enhancementImage analysisPolyesterPrincipal component analysis
The invention discloses a textile fabric polyester fiber detection method based on spectral imaging and curve fitting, and relates to the technical field of hyperspectral imaging analysis, and the method comprises the steps: carrying out the characteristic decomposition and principal component analysis of a reflectivity function after baseline correction, and obtaining a characteristic curve; extracting feature information of the hyperspectral image, and fusing the feature information of the hyperspectral image with the feature curve to generate a multi-dimensional feature vector; and constructing a hyperspectral fiber content detection model, inputting the multi-dimensional feature vector and the feature parameter vector into the hyperspectral fiber content detection model, and generating the polyester fiber content. Not only are the problems of background noise and drift interference solved, but also the multi-dimensional characteristics of the hyperspectral data are fully mined. The content of the polyester fibers in the waste textile fabrics can be efficiently detected on line. Finally, according to the method, the detection precision and reliability are remarkably improved, and an efficient, environment-friendly and accurate technical means is provided for resource utilization of the waste textile fabrics.
Owner:ZHEJIANG UNIV +1

Fermentation method of bifidobacterium longum BBMN68 as well as fermented product, postbiotic and application of bifidobacterium longum BBMN68

The invention relates to the technical field of microorganisms, and particularly discloses a fermentation method of bifidobacterium longum BBMN68 as well as a fermented product, a postbiotic and application of the fermented product. According to the method for fermenting the bifidobacterium longum BBMN68, a fermentation substrate comprises alkaline protease hydrolyzed milk and a pomelo peel extract; the hydrolysis rate of the alkaline protease hydrolyzed milk is 9-11%, and the water-soluble dietary fiber content of the shaddock peel extract is 75-80%; the mass ratio of the alkaline protease hydrolyzed milk to the shaddock peel extract is (10-15): (1-3). The content of active ingredients in the fermented product prepared by the method is high, and after the fermented product is prepared into the postbiotics to be taken, the immune function of an organism can be recovered, immune organ damage is reduced, inflammation is relieved, and intestinal flora is regulated and controlled.
Owner:INNER MONGOLIA MENGNIU DAIRY IND (GROUP) CO LTD

Bacillus capable of efficiently degrading fibers and application thereof

The invention discloses a bacillus capable of efficiently degrading fibers and application of the bacillus. The name of the bacillus altitudinis DF34 is bacillus altitudinis, the preservation number of the bacillus altitudinis is GDMCC No: 65492, and the bacillus altitudinis is preserved in Guangdong Microbial Culture Collection Center on December 4, 2024. The bacillus has the characteristics of strong stress resistance and high growth speed; the strain has the capability of efficiently degrading fibers, and can degrade fiber components of forage grass, promote fermentation and improve the fermentation quality of the forage grass with low soluble sugar water content in the ensiling process. Therefore, the bacillus altitudinis DF34 can be widely applied to various regions in China, and especially has an outstanding effect on silage raw materials with high fiber content. The strain successfully solves the problem of poor silage fermentation caused by low water-soluble carbohydrate content, and provides a new solution for improving the quality of the silage.
Owner:SOUTH CHINA AGRICULTURAL UNIVERSITY

Bacillus subtilis and application

The invention discloses bacillus subtilis and application thereof. The bacillus subtilis LDH-Y3 is obtained by being separated from Guangzhou commercially available Rakang goat milk pasteurized milk, and is preserved in Guangdong Microbial Culture Collection Center, and the preservation number is GDMCC No: 64442. The bacterial strain is high in growth speed and high in activity, the maximum viable count reaches 9.36 log CFU / mL, and the bacterial strain has good gastrointestinal tract digestion resistance. The bacillus subtilis is high in cellulase production capacity, CMCase (Carboxymethyl Cellulase) reaches 39.66 U / mL, beta-Gase (beta-Gase) reaches 2.36 U / mL, and Fpase (Fpasease) reaches 11.37 U / mL. The strain has the capability of inhibiting helminthosporium convex hilum and helminthosporium longibrachiatum, and after solid state fermentation of corn straw, the content of neutral detergent fibers in the corn straw can be reduced, and the digestibility of the straw is improved.
Owner:SOUTH CHINA UNIV OF TECH

Ablation-resistant ethylene-propylene-diene monomer thermal insulation material and preparation method thereof

PendingCN119639133AImprove anti-ablation performanceImproves ablation resistancePolymer scienceVulcanization
The invention discloses an ablation-resistant EPDM (Ethylene-Propylene-Diene Monomer) thermal insulation material and a preparation method thereof, and belongs to the field of thermal insulation materials, the thermal insulation material is prepared from the following components in parts by mass: 70 to 80 parts of EPDM rubber, 20 to 30 parts of liquid EPDM, 15 to 20 parts of silicon dioxide, 10 to 40 parts of high-temperature-resistant filler, 10 to 15 parts of flame retardant, 10 to 15 parts of heat-resistant fiber and 3 to 5 parts of cross-linking agent. A third monomer of the ethylene propylene diene monomer is ethylidene norbornene, and the ethylene content is 50-60%. The raw materials are placed between double rollers to be mixed, and a mixed sheet is obtained; and performing vulcanization molding on the mixed sheet to obtain the ablation-resistant ethylene-propylene-diene monomer thermal insulation material. The content of the heat-resistant fibers is increased, the aramid fibers are subjected to in-situ carbonization to form a carbonized layer structure frame, and meanwhile, the content of SiO2 is regulated and controlled, so that the content of SiO2 is matched with the increase of the fibers, and the ablation resistance of the thermal insulation material is improved.
Owner:XIAN CHANGFENG ELECTROMECHANICAL RES INST

A preparation method of high-shrinkage polyethylene furandicarboxylate fiber

The present invention belongs to the technical field of the preparation of bio-based functional fibers, and relates to a preparation method of highly shrinkable polyethylene furandicarboxylate fibers. Preparation method: The polyethylene furandicarboxylate chips are dried and then melt-blended and spun to obtain highly shrinkable polyethylene furandicarboxylate fibers. The linear density of the fibers is 2.22 - 4.44 dtex, and the linear density deviation rate is -5% - 5%. The breaking strength of the fibers is 3.5 - 4.5 cN / dtex, the breaking elongation rate is 53.5 - 68.5%, the content of ultra-long fibers is 0 - 3 mg / 100 g, the content of defects is 3 - 20 mg / 100 g, the number of crimps is 12 - 15 per 25 mm, the crimp rate is 14% - 18%, and the boiling water shrinkage rate is 60 - 80%. The highly shrinkable polyethylene furandicarboxylate fibers prepared by the present invention are 100% highly shrinkable polyester fibers, and the fiber properties far exceed those of conventional highly shrinkable fibers, and can become an alternative product to PET.
Owner:SHANGHAI DEFULUN CHEM FIBER

High-roundness continuous fiber composite reinforced prepreg wire and preparation method thereof

PendingCN120230405AFused filament fabricationPolymer science
The invention discloses a high roundness continuous fiber composite reinforced prepreg wire material and a preparation method thereof, the prepreg wire material is a special wire material for 3D printing manufactured by FFF fuse wires and is composed of a reinforcing material and a matrix, the matrix is thermoplastic resin, and the reinforcing material is chopped fibers and continuous fibers. The preparation method comprises the following steps: blending thermoplastic resin particles and chopped fibers according to a set ratio, and carrying out extrusion pelletizing to obtain short fiber reinforced particles; after short fiber reinforced granules are extruded by a single screw, the short fiber reinforced granules and the continuous fiber bundles enter a hot mold impregnation bin from different channels at the same time, and impregnation rods with different angles are arranged in the impregnation bin so as to promote a matrix to be adhered to the continuous fiber bundles; and then the continuous fiber bundle impregnated with the short fiber reinforced particles passes through a forming die with a certain diameter, and is finally drawn and wound to a wire coil. After the prepared prepreg wire is synergistically enhanced by the continuous fibers and the chopped fibers, not only are the fiber content and the mechanical property improved, but also the diameter uniformity of the wire is greatly improved.
Owner:NANJING SPECIAL PLASTIC COMPOSITE MATERIALS CO LTD

Method and device for processing bamboo

The application discloses a processing method and device of bamboo, and relates to the field of material processing.The method comprises the following steps: processing round bamboo into bamboo board with a rectangular cross section; visually grading the end face of the bamboo board; establishing a bamboo fiber distribution density model; determining a sectioning position, and sectioning along the radial direction according to the relative value of fiber content distribution; independently grading and cold-pressing the bamboo slices obtained by sectioning; and respectively stacking and storing the bamboo slices with different thicknesses after vacuum drying and roller continuous drying. The bamboo slice sectioning device comprises a vacuum adsorption fixing device, which comprises a fixing device for adsorbing the bamboo board, and a fixing bottom plate, wherein a vacuum suction channel penetrating through the fixing bottom plate is arranged on the fixing bottom plate.The application can process the bamboo according to the fiber distribution along the radial direction of the bamboo wall, and prepare bamboo slices with different fiber contents and the same / different thicknesses, so that the uniform preparation and application of gradient variation bamboo are realized, the difference between units is eliminated, and materials and products with high strength and stable performance are more easily prepared.
Owner:INT CENT FOR BAMBOO & RATTAN

Preparation technology of chickpea plant-based milk

The invention discloses a preparation technology of chickpea plant-based milk, and relates to the technical field of food processing. Comprising the following steps of cooking, crushing, homogenizing, first-time enzymolysis, pH adjustment, second-time enzymolysis, enzyme deactivation, filtering, ingredient blending, high-speed shearing, homogenizing, sterilizing and canning. According to the chickpea plant-based milk with the low glycemic index prepared on the basis of the enzymolysis technology, the protein content reaches 1.86 + / -0.05 g / 100g, the protein utilization rate is increased by 38.4%, and the fat content is 0.85 + / -0.13 g / 100g; the content of dietary fibers is 1.51 + / -0.29 g / 100g; the eGI value is 57.27 + / -1.35; the average particle size of the chickpea plant milk is 124.49 microns; the absolute value of the Zeta potential is 55.67 + / -2.16 mV; 11 flavor substances contributing to sense organs are detected in the plant milk, the content of beany flavor substances such as hexanal is reduced, other flavor substances are enhanced, and the plant milk is endowed with mellow fragrance, light fruit fragrance and more distinct layering sense.
Owner:SHIHEZI UNIVERSITY

Lactobacillus plantarum LSR-22 and application thereof in preparation of silage

The invention discloses lactobacillus plantarum LSR-22 and application thereof in preparation of silage, the biological preservation number of the lactobacillus plantarum LSR-22 is CCTCC M 20242927, the lactobacillus plantarum LSR-22 is used for preparing ruminant silage, the lactobacillus plantarum LSR-22 is inoculated and added into a mixed silage raw material, the water content of the silage raw material is adjusted to a preset value, and the silage raw material is sealed and packaged. And fermenting in a dark place for 45-70 days to prepare the silage. When the strain is used for fermenting the silage, the contents of dry matters and crude proteins can be remarkably increased, water-soluble carbohydrates are increased, and the fiber content is reduced, so that the nutritional value and digestibility of the silage are improved, the content of ammoniacal nitrogen can be reduced, the content of lactic acid can be increased, and the fermentation quality of the silage is further improved.
Owner:SICHUAN NORMAL UNIV

Device for preparing continuous fiber reinforced thermoplastic resin composite prepreg wire

The invention discloses a device for preparing a continuous fiber reinforced thermoplastic resin composite prepreg wire rod, and belongs to the technical field of composite material manufacturing. The device comprises a continuous wire releasing system, a fiber pretreatment system, a resin impregnation system, a solution volatilization system, a wire shaping system and a post-treatment system. In the preparation process of the continuous fiber reinforced thermoplastic resin prepreg wire, the thermoplastic resin in the prepreg wire is fully wetted and uniformly distributed through the continuous activation treatment of the fiber pretreatment system and the homogenization extrusion impregnation process of the resin impregnation system. And continuous preparation of the 3D printing continuous fiber reinforced thermoplastic resin prepreg wire with high fiber content and low porosity can be realized through subsequent processes such as efficient volatilization of the solution volatilization system and multi-level pultrusion shaping of the shaping system. The mechanical property and the production efficiency of the 3D printing continuous fiber reinforced thermoplastic resin prepreg wire and the composite material thereof can be obviously enhanced, and meanwhile, the manufacturing scheme is stable and reliable.
Owner:INST OF COAL CHEM CHINESE ACAD OF SCI

CMP (chemi-mechanical pulp) production method capable of improving drainability of chemi-mechanical pulp

The invention discloses an chemi-mechanical pulp production method capable of improving the filtration property of chemi-mechanical pulp, and relates to the technical field of papermaking, high-concentration grinding freeness is optimized to 640 + / -30ml, pulp fine fibers can be controlled at 22%-33%, the tensile index middle-lower limit and the bulk middle-upper limit, the high-concentration grinding effect is improved, the effect between fibers is facilitated, the effect between the fibers and a grinding sheet is reduced, and the filtration property of the chemi-mechanical pulp is improved. Fiber cutting is reduced, and the content of pulp fine fibers is reduced; the MSD torque is increased to 250 + / -10 KNM, the tearing effect of wood chips is improved, the preimpregnation reaction of the wood chips is facilitated, the original fine content is controlled to 26%-29% from original 22%-33%, the pulp bulk is increased by about 0.1 cm < 3 > / g, and the tensile index is increased by 1.0 N.m / g; the four low-concentration grinders are changed into parallel connection, so that the residence time of pulp in the low-concentration grinders is prolonged, the cutting effect of the pulp ground by the low-concentration grinders on fibers is reduced, light friction between grinding sheets and the fibers is increased, fibrillation of the fibers is facilitated, the bulk and the tensile strength are improved to a certain extent, and under the content of fine fibers, the size of the fibers is reduced. And the bulkiness and the tensile index of the finished pulp are also improved to a certain extent.
Owner:江苏博汇纸业有限公司

Preparation method and application of antibacterial and starch aging resistant biphase gel

PendingCN120360147ABiotechnologyMonoglyceride
The invention relates to a preparation method and application of antibacterial and starch aging resistant biphase gel, and belongs to the field of food processing. The preparation method is characterized by comprising the following steps: preparing oleogel from monoglyceride, corn oil and curcumin, preparing hydrogel from wheat bran araboxylan and tea polyphenol, mixing the oleogel and the hydrogel, adding lecithin, and homogenizing at a high speed to obtain the gel with a two-phase system. The biphase gel produced by the invention has the characteristics of zero trans-fat, high fiber content, simple preparation method and the like, realizes synergistic stability of oil and water phases, has both the mechanical strength of oil gel and the biocompatibility of hydrogel, can replace shortening in baked food, and has a wide application prospect. And the shelf life of the baked product is prolonged through the synergistic effect of antibiosis and starch aging resistance. The mass ratio of the oil phase to the water phase in the biphase gel is 1: 3-3: 1, the addition amount is 10-20% of the mass of the flour, the bacteriostasis rates on penicillium and rhizopus are 60-85% and 65-90% respectively, the starch crystallinity in the bread storage process is reduced by 10-20%, and the shelf life of the bread is prolonged by 10-20 days.
Owner:NANJING AGRICULTURAL UNIVERSITY

Plant fiber-polymer composite material and preparation method thereof

ActiveCN121673849APlant fibrePlasticulture
The invention belongs to the technical field of biomass composite material processing, and discloses a plant fiber-polymer composite material and a preparation method thereof. The plant fiber-polymer composite material is prepared from the following raw materials in parts by mass through plasticizing extrusion molding: 50 to 88 parts of plant fibers, 0.5 to 8 parts of a biomass cross-linking agent, 0.5 to 5 parts of a low-temperature water-soluble polymer, 10 to 50 parts of water and 0.05 to 3 parts of metal ions, wherein the metal ions and the biomass cross-linking agent form a reversible cross-linked network in the system through coordination; due to the existence of the reversible cross-linked network, the composite material can be plasticized and continuously extruded and molded under the shearing action at the temperature of 20-70 DEG C. The metal ion-biomass cross-linking agent coordination network provides high structural strength in a static state and is reversibly dissociated in a shear field, so that shear-driven plasticizing of a high-viscosity and high-fiber-content system in a low-temperature interval of 20-70 DEG C is realized.
Owner:SICHUAN UNIV

Dispersible non-wood pulp

Disclosed are non-wood pulps having a fiber length greater than about 1.70 mm and a Very Long Fiber (VLF) content of about 0.50% or less. The fibers are readily dispersible in water and useful in the formation of fibrous sheets, particularly wet-laid sheets and more particularly wet-laid tissue sheets having a relatively low basis weight. In addition of having a relatively long fiber length and a low VLF content, the pulps may also have a Dispersivity Index of about 2.00 or less, which is indicative of a relatively narrow fiber length distribution. The pulps may be prepared from plants of the family Asparagaceae by mechanical pulping and more preferably by a chemi-mechanical pulping process using an alkaline and hydrogen peroxide where the plant biomass is cut to size prior to pulping.
Owner:KIMBERLY CLARK WORLDWIDE INC

Lightweight warm-keeping comfortable garment material and preparation method thereof

The invention discloses a light warm-keeping comfortable garment fabric and a preparation method thereof, and belongs to the technical field of textile fabrics. Through the content ratio of various fibers, the synergistic effect among the materials and reasonable compatibility design, on the basis of meeting the warm keeping performance of the fabric, the mass per unit area of the warm keeping fabric is reduced, the purposes of light weight and high efficiency are achieved, and meanwhile the comfort and warm keeping performance of the fabric are improved; the modified graphene oxide can be firmly attached to the surface of the fabric by reacting with the pretreated fabric gray fabric, so that the fabric is not easy to peel off from the surface of the fabric after being cleaned for multiple times, and the fabric can keep excellent warm-keeping, antistatic and antibacterial effects for a long time.
Owner:HANGZHOU FUEN TEXTILE

Antistatic warm-keeping rabbit wool silk fabric

The invention relates to the field of functional fabrics, in particular to an antistatic warm-keeping rabbit wool silk fabric. Which comprises a body, the body comprises a surface layer and a bottom layer connected with the surface layer, and is characterized in that the surface layer comprises 40-50% of regenerated cellulose fibers, 8-15% of spandex, 2-5% of rabbit wool and the balance acrylic fibers; the fiber content of the bottom layer is as follows: 22-30% of regenerated cellulose fiber, 3-5% of silk, 8-15% of spandex and the balance of acrylic fiber. The bottom layer containing silk and the surface layer containing rabbit wool are formed, so that the fabric has better antistatic property, heat preservation property and pilling resistance.
Owner:SHENZHEN XIANGMIJIA TECHNOLOGY CO LTD

Cat litter prepared from alfalfa stubbles and preparation method of cat litter

The cat litter is characterized by comprising the following components in percentage by mass: 45%-70% of alfalfa stubble powder, 10%-30% of wood fibers, 13%-15% of corn starch, 3% of baking soda, 2%-5% of xanthan gum and 2% of bacteriostatic and deodorant components. The cat litter prepared by using the alfalfa stubble as the raw material is completely prepared from natural raw materials, is low in cost, wide in source and capable of being naturally degraded, the water absorption and caking property of the cat litter are improved by utilizing the characteristic that the alfalfa stubble is high in fiber content, the caking property of the cat litter is further enhanced through the corn starch, and the cat litter has the advantages of being environment-friendly and energy-saving. The deodorization performance of the cat litter can be obviously improved through the alfalfa stubbles, the added mint essential oil and the added coffee grounds, the process is simple, the requirement for equipment is low, and industrial production can be achieved.
Owner:SHANGHAI VOCATIONAL COLLEGE OF SCI & TECH

Organic fertilizer production method

The invention discloses an organic fertilizer production method, and particularly relates to the technical field of organic fertilizer production, and the method comprises the following steps: kitchen garbage is classified according to moisture and fiber content, and is pretreated by extrusion crushing and high-frequency vibration crushing; mixing the pretreated materials in proportion, inoculating a compound microbial agent, and performing efficient fermentation under the condition of intelligent temperature and humidity control; and gelatinizing the fermentation product with sodium alginate and calcium chloride to prepare the slow-release gel particle organic fertilizer. According to the organic fertilizer production method disclosed by the invention, the fermentation period is shortened and the production efficiency is improved through the synergistic effect of quality-divided pretreatment and the complex microbial inoculants; waste and environmental pollution caused by burst release of nutrients are effectively avoided; the product has the characteristics of convenience in application and long-acting slow release, can be directly applied through a drip irrigation system, greatly reduces the labor intensity, and has remarkable economic and environmental benefits.
Owner:NINGXIA SHENGYOUDE IND CO LTD

Method and system for judging suitable harvest time of silage corn planting for feed

The invention relates to a method and system for discriminating suitable harvest time of silage corn planting for feed, and belongs to the technical field of agricultural product harvesting methods. According to the method, silage corn quality evaluation indexes M and M are respectively calculated according to the following formula and formula II: M = Sta * CP * EE / NDF formula I and M = Sta * CP * EE / ADF formula II; wherein Sta is the numerical value of the content of the crude starch in the dimensionless silage corn with the dimension of%; cP is the numerical value of the content of the crude protein in the non-dimensional silage corn with the dimension of%; eE is the numerical value of the content of the crude fat in the dimensionless silage corn with the dimension of%; aDF is the numerical value of the acid detergent fiber content in the dimensionless silage corn with the dimension of%; the NDF is the numerical value of the content of the neutral detergent fibers in the dimensionless silage corn with the dimension of%; and when M is 8.5-13.5 and M'is 16.0-25.0, determining that the silage corn is in a suitable harvesting period. According to the method, the suitable harvesting period of the silage corn can be more accurately known, the crude starch content of the silage corn harvested in the harvesting period reaches 30% or above, and the requirement for the crude starch content of the high-quality silage corn is met.
Owner:NINGXIA INST OF AGRI PROD QUALITY STANDARDS & TESTING TECH (NINGXIA AGRI PROD QUALITY MONITORING CENT) +1

Two stage dehydration method for plant based food processing

A process is disclosed for creating a shelf-stable, grain-free, plant-based food composition with a crisp texture and integrated seasoning. The food compositions taught herein exhibit a low moisture content, high fiber content, and a desirable crispness that is maintained even when combined with milk or milk alternatives, enabling use as a grain-free breakfast cereal.
Owner:THATS IT NUTRITION LLC

Application of algae NySAT2 gene in regulating crude protein and detergent fiber of medicago sativa

The invention relates to the technical field of plant genetic engineering, in particular to application of an algae NySAT2 gene in regulation and control of alfalfa crude protein and detergent fiber. According to the invention, a sequence after codon optimization of an NySAT2 gene coding region is obtained by using gene synthesis and codon optimization technologies, an algae NySAT2 gene overexpression vector is constructed, a target gene is introduced into an alfalfa genome by using an agrobacterium rhizogenes mediated genetic transformation method, and a transgenic plant is obtained by using a genetic transformation system. Molecular identification and phenotypic analysis show that on the premise of keeping normal growth vigor (plant height and biomass have no significant difference from those of a wild type), the crude protein content of a medicago sativa plant with the overexpressed NySAT2 gene is remarkably increased compared with that of the wild type medicago sativa plant, and meanwhile, the contents of acid detergent fibers and neutral detergent fibers are remarkably reduced, so that the content of the crude protein in the medicago sativa plant with the overexpressed NySAT2 gene is remarkably increased. The forage quality and the feeding value of the medicago sativa are effectively improved.
Owner:SHANDONG UNIV +1

Method for preparing gel material by compounding phosphoric acid-based geopolymer with plant fiber

The invention relates to a method for preparing a gel material from phosphoric acid-based geopolymer composite plant fiber, which comprises the following steps: (1) reacting phosphoric acid serving as an acid activator with metakaolin, and adding phosphoric acid, water and metakaolin into a mixing stirrer to react for 30 minutes; (2) adding the Chinese fir fibers into the geopolymer gel, uniformly stirring for a certain time, putting the mixed slurry into a rectangular mold of 220 * 50 * 20mm, putting the rectangular mold on a hot press for compression molding, and setting the temperature of the hot press to be 60 DEG C and the pressure of the hot press to be 45MPa; and (3) putting the composite material obtained by pressing and the mold into a drying oven at 60 DEG C for curing, demolding after 1 day, putting the demolded sample into a sample bag for sealing, continuously curing in the drying oven at 60 DEG C for 3 days, removing the sample bag, then curing for 3 days, and then testing the performance of the sample. When the molar ratio of H2O to Al2O3 is 10, the molar ratio of H3PO4 to Al2O3 is 2.0 and the fiber content is 10%, the static bending intensity of the prepared geopolymer composite material reaches the optimal value of 13.75 MPa, and the internal bonding strength also reaches the optimal value of 2.17 MPa. The static bending intensity of the sample after freezing and thawing cycle can still reach 10.87 MPa to the maximum, and the frozen and thawed sample does not have edge missing, corner missing and cracking.
Owner:HEZHOU UNIV

Fibrous material impregnated with thermoplastic polymer having a thickness of less than or equal to 100MM and method for the production thereof

An impregnated fibrous material including at least one fibrous material of continuous fibers and: at least one non-reactive thermoplastic polymer matrix, or at least one reactive thermoplastic prepolymer, which is a precursor of the non-reactive thermoplastic polymer, optionally mixed with a chain extender, wherein the at least one non-reactive thermoplastic polymer or the reactive prepolymer is an amorphous polymer or prepolymer having a glass transition temperature such that Tg≥80° C., or is a semi-crystalline polymer or prepolymer having a melting temperature Tf≥150° C., the fiber content in the pre-impregnated fibrous material being between 45 and 65 volume %, and the average thickness of the impregnated fibrous material being less than or equal to 100 μm, independently of the number of fibers present in the fibrous material before impregnation.
Owner:ARKEMA FRANCE SA

One-bath one-step dyeing device and dyeing process based on cashmere blended fabric

The invention relates to the technical field of cashmere blended fabric dyeing, and discloses a one-bath one-step dyeing device and process based on cashmere blended fabric, comprising a dye vat, a dye barrel arranged on one side of the dye vat, a circulating pump arranged on one side of the dye barrel, a heating device fixedly mounted above the circulating pump, and a nozzle fixedly mounted in the dye vat; according to the dyeing device, the motor is used for driving the cloth lifting roller to rotate, the magnetic beads are limited through the limiting rings of different sizes, when the pressure borne by the cloth lifting roller is in different ranges, the magnetic beads can be clamped in the different limiting rings, and when the downward sliding distance of the cloth lifting roller is larger, the magnetic beads can be clamped in the different limiting rings. If the fabric is heavier, the content of the brewed protein fibers in the raw materials is higher, the tensile property of the fabric is better, and the power of the motor is controlled to be increased by the corresponding induction plate, so that the fabric can smoothly move in the dye vat, the fabric is prevented from being stacked, and meanwhile, the fabric is not deformed or wrinkled.
Owner:NINGBO CONSINEE NEW FIBER TECH CO LTD

Tailing fiber recycling device for deslagging section

The utility model discloses a tailing fiber recycling device for a deslagging section. The tailing fiber recycling device comprises a feeding tank, a first multi-section deslagging device, a transverse deslagging device, a second multi-section deslagging device, a white water tank, a slag tank and an accepted pulp tank, a feeding hole of the first multi-section slag separator is communicated with the discharging end of the feeding tank, and a slag outlet in the bottom of the first multi-section slag separator is communicated with a feeding hole of the transverse slag separator; preliminary deslagging and filtering are carried out through the first multi-section deslagging device, filtered slag slurry enters the transverse deslagging device, and white water is pumped into the transverse deslagging device through the white water tank, so that the slag slurry is rotationally separated in the transverse deslagging device; and the formed accepted pulp is automatically returned to the first multi-section slag separator, is discharged from the accepted pulp opening after being subjected to slag discharge, and further fiber recovery is realized through mutual cooperation of the transverse slag separator, the first multi-section slag separator and the second multi-section slag separator, so that the fiber content in the slag pulp is lower, and the utilization rate of the fiber is improved.
Owner:LEE & MAN PAPER MFG

High-thermal-conductivity low-modulus graphene fiber heat-conducting gasket and preparation method thereof

The invention provides a high-thermal-conductivity low-modulus graphene fiber heat-conducting gasket and a preparation method thereof. Graphene fibers are directionally wound and impregnated to prepare a prepreg, the prepreg is laminated and bonded to form a high-orientation fiber plate, and then the high-orientation fiber plate is directionally cut in the direction perpendicular to the fibers to obtain the heat-conducting gasket composed of continuous vertical fibers and organic silicon. The fiber is of an X-shaped crossed network structure, and is combined with an elastic silica gel matrix to form a hinge-like structure which can be highly deformed under the orientation of 0.5-10 degrees and-10--0.5 degrees, so that the compression resilience and durability are remarkably improved, and meanwhile, efficient heat conduction is kept. According to the structure, the problems of buckling, fracture and stress concentration which are easily caused by traditional vertical or random arrangement are avoided. A one-way felt impregnation lamination cutting method is adopted, the processing problem caused by high filler is solved, the fiber content can reach 85.1 wt%, and the array density is 2.4-195.9 mg / cm. The gasket has high thermal conductivity, low modulus and excellent rebound resilience, and is suitable for thermal management of high-power electronic equipment such as electronic base stations, communication radars, new energy automobiles, aerospace and the like.
Owner:HANGZHOU GAOXI TECH CO LTD +1

Method for improving quality of ganoderma lucidum mushroom residues through synergistic fermentation of bacteria and enzymes and application of method

The invention discloses a method for improving the quality of ganoderma lucidum mushroom residues through synergistic fermentation of bacteria and enzymes and application of the method. According to the method disclosed by the invention, cellulase, beta-galactosidase and xylanase with proper concentrations and lactobacillus plantarum, bacillus subtilis and saccharomyces cerevisiae with proper proportions are adopted, and enzymes and bacteria are mutually cooperated, so that the characteristics of the raw materials are well balanced, the finally prepared ganoderma lucidum mushroom bran is high in protein content and low in fiber content, and the nutritional value of a feed is improved; the total amount of amino acids and essential amino acids are remarkably increased, and the feed protein quality can be improved; the rumen dry matter digestibility and energy metabolites are remarkably improved, and ruminant absorption and utilization are facilitated; the ganoderma lucidum mushroom bran fermented feed is added into the daily ration, so that the daily gain, the carcass rate and the dressing percentage of fed animals can be remarkably improved, the levels of serum GLU, TG, ALT and AST are reduced, the expression of key inflammatory cytokines (IL-1beta and IL-6) is inhibited, and the ganoderma lucidum mushroom bran fermented feed has the comprehensive effects of regulating glycolipid metabolism and relieving liver load and systemic inflammation, so that the immune function of animal bodies is improved.
Owner:FUJIAN AGRI & FORESTRY UNIV

Modular blade main beam structure based on chopped fiber reinforcement and manufacturing method

The invention relates to a chopped fiber reinforcement-based modularized paddle main beam structure and a manufacturing method, and relates to the technical field of aircraft parts, the chopped fiber reinforcement-based modularized paddle main beam structure comprises a main beam body used for supporting a paddle, the main beam body is composed of a plurality of module units, the module units are made of chopped fiber reinforced composite materials, and the interior of each module unit is of a hollow structure; the gradient supporting pieces are arranged in the module units, each gradient supporting piece comprises a vertical strip and a transverse supporting strip, the vertical strips and the transverse supporting strips are arranged in a density stepped change mode, and the density of the ends, close to the connecting ends, of the vertical strips and the transverse supporting strips is large; according to the gradient supporting piece, the density stepped change design is adopted, high-fiber-content metal powder or metal powder mixed with the high-fiber-content metal powder is adopted close to the connecting end, and the rigidity, the abrasion resistance and the bolt pre-tightening force resisting capacity are improved; and the middle part adopts a low-density core material for weight reduction, so that the bending rigidity is kept while the overall weight is reduced, and the balance of light weight and high strength is realized.
Owner:SUZHOU SONGHUA AVIATION EQUIPMENT CO LTD