92results about How to "Not easy to split" patented technology

The invention relates to impact-resistant basalt fiber reinforced concrete and a preparation method thereof. The impact-resistant basalt fiber reinforced concrete comprises the following components inparts by weight: 400-800 parts of cement, 80-170 parts of a mineral admixture; 500-1200 parts of fine aggregate; 90-1800 parts of coarse aggregate; 2-4 parts of basalt fiber; and 200-400 parts of water. According to the impact-resistant basalt fiber reinforced concrete, the basalt fiber has excellent impact resistance, and the impact failure load is higher than that of common concrete. The relative dynamic elastic modulus and the mass loss rate are obviously controlled under the condition of multiple freezing and thawing, the anti-freezing performance is outstanding, and the concrete has important significance in the fields of port deep wharfs, cross-sea bridges and the like.

The invention discloses an acetaminophen, caffeine, chlorphenamine maleate, vitamin C preparation and a preparation method thereof, wherein the preparation is double-layer tablets which are respectively an acetaminophen granular layer embedded by beta-cyclodextrin, and a caffeine, chlorphenamine maleate and vitamin C granular layer, which are moulded by a tablet press. The preparation uses the beta-cyclodextrin to embed the acetaminophen so as to remarkably improve the stability and dissolution rate of the acetaminophen and reduce the stimulation and toxic side effects of medicaments; the beta-cyclodextrin can further reduce the offensive odour of the medicaments; moreover, the invention adopts the synergistic effect of the acetaminophen and the vitamin C so as to shorten the treatment course for curing the cold and make the cold be not easy to relapse; and the double-layer tablet structure achieves the purposes of isolating the acetaminophen and the caffeine, the chlorphenamine maleate and the vitamin C and solves the problems of metamorphic degradation, poor stability, short period of efficacy and the like caused by the interaction of the medicaments. The preparation is not easy to split, and is excellent in quality. The method is used for preparing the acetaminophen caffeine chlorphenamine maleate vitamin C double-layer tablet, and the preparation is mainly used for treating disease such as cold.

The invention relates to a method of producing flat fibers for plastic woven bags and flexible freight containers by using waste PET (polyethylene terephthalate) bottles. The method is characterized by comprising the following steps of: mixing the waste PET bottles which are dried or crystalized in advance with a compatibilizer, an antioxidant, a tackifier, a filling agent, a color masterbatch, a lanthanide series metallic compound and additives, then adding the mixture to an extruder, carrying out extrusion, filtering and measurement in sequence, carrying out tape casting by using a die head, and cooling on a cooling roller to obtain films. The relative pulling strength (N / tex) of the flat fibers is greater than or equal to 0.58; the elongation rate (%) of the flat fibers is 16.5-21.4; the oxygen index of the flat fibers is above 26; the linear density (tex) of the flat fibers reaches 71.6-153.7; the tensile strength retention rate of the flat fibers is 93.3%-93.8% when the flat fibers are placed for 144 hours; the strength retention rate of the flat fibers is 97.1%-97.5% when the flat fibers are placed for 144 hours at the temperature of minus 35 DEG C; when being placed for 2 hours at the temperature of 140 DEG C, the shrinkage rate of the 10 cm flat fiber is 0; and the ink layer combination firmness of the flat fibers is 92%-99%.

The invention relates to the field of preparation of semiconductor materials, and discloses a preparation method of a heterostructure thin film capable of reducing thin film stripping thermal stress.The method specifically comprises the following steps: firstly, providing a heterostructure thin film substrate which comprises a first surface and a second surface which are oppositely arranged; sequentially depositing a first indium layer and a first gold layer on the first surface to form a first substrate to be bonded; secondly, providing a support substrate; sequentially depositing a second indium layer and a second gold layer on the third surface of the support substrate to form a second substrate to be bonded; placing a first to-be-bonded substrate on a second to-be-bonded substrate, and enabling the first gold layer to be in contact with the second gold layer to form a to-be-bonded substrate; and finally, applying an acting force to the second surface, and meanwhile, carrying out bonding, annealing and stripping transfer on the substrate to be bonded to obtain the heterostructure film. The preparation method of the heterostructure film provided by the invention has the characteristics that the area of the peeled and transferred piezoelectric film is increased, and the film is not easy to crack.

The invention relates to flocking artificial leather, and particularly relates to flocking artificial leather with a metal wire. The flocking artificial leather with the metal wire is orderly provided with a substrate layer (1), a PVC (polyvinyl chloride) plastic layer (3) and a flocking layer (4) from bottom to top. The flocking artificial leather with the metal wire is characterized in that a metal wire layer (2) is also arranged between the substrate layer (1) and the PVC plastic layer (3); and the metal wire layer (2) is an iron wire, a steel wire, a copper wire, an aluminum wire or is formed by distributing other metal wires in a net shape. The metal wire layer is added between the substrate layer and the PVC plastic layer, and the metal wires is in the reticular distribution, so that a knapsack or a handbag made of the flocking artificial leather is not easily cut apart by a blade, and has high-strength anti-cracking property under the condition of ensuring soft appearance. Thus, the property safety of a user is protected.

An anode active material (1) of the present invention for use in a nonaqueous secondary battery, the anode active material includes: a main crystalline phase (2) including a lithium-containing transition metal oxide containing manganese and having a spinel structure; and a sub crystalline phase (3) contained in the main crystalline phase, the sub crystalline phase (3) being identical in oxygen arrangement to the lithium-containing transition metal oxide and different in elementary composition from the lithium-containing transition metal oxide, a main crystalline phase part (2') around the sub crystalline phase (3) and the sub crystalline phase (3) having a same crystal orientation.

The present invention relates to an artificial leather with metal wires and with advantages of reasonable structure and good use performance. The artificial leather comprises a matrix layer (1) on thelower layer, a PVC plastic layer (3) on the upper layer, and a metal wire layer (2) in the middle layer, wherein the metal wire layer (2) is formed by distributing metal wires in a mesh manner, a lining fabric layer is compounded on the back surface of the matrix layer, the warp thread of the lining fabric layer uses casein fiber, the weft thread of the lining fabric layer uses viscose fiber, thediameter of the casein fiber is 18.62 [mu]m, the fineness of the casein fiber is 252 dtex, the diameter of the viscose fiber is 8.29 [mu]m, the fineness of the viscose fiber is 198 dtex, the warp density is 25.9 / cm, the weft density is 16.3 / cm, and the enhanced twill weave structure is used. According to the present invention, the knapsack or the handbag prepared from the artificial leather is not easily broken by the cutter blade, and the artificial leather has reasonable structure and good use performance.

The invention discloses a double braided layer high-pressure wear-resistant flexible pipe. The double braided layer high-pressure wear-resistant flexible pipe comprises a flexible pipe main body; theflexible pipe main body comprises an inner pipe, a first braided layer, a second braided layer, and a wear-resistant layer successively from inside out; the inner pipe is prepared through extrusion moulding using a single screw extruder; the first braided layer is formed on the external surface of the inner pipe using a braiding machine through braiding; the second braided layer is formed on the external surface of the first braided layer using a braiding machine through braiding; the wear-resistant layer is used for coating the external surface of the second braided layer through extrusion using the single screw extruder. The double braided layer high-pressure wear-resistant flexible pipe is capable of avoiding defects in the prior art, and is prepared through spray coating of an environment protection plastic glue or polyurethane adhesive, so that the structures of the flexible pipe main body between the layers are stable, cracking is not easily caused, and flexible pipe service lifeis prolonged; at the same time, the wear-resistant layer is prepared from thermoplastic polyurethane elastomer rubber, so that the wear resistance, oil resistance, transparency, and elasticity are excellent, halogen free flame resistance is achieved, and environment protection requirements are satisfied; and in addition, the flexible pipe main body is adopted with a high strength polyester yarn braided and coppered steel wire double layer braided structure, so that flexible pipe toughness and pressure resistance are improved.

The invention relates to the field of component analysis, in particular to a ferro-molybdenum sample, a preparation method thereof and a method for determining the content of components in ferro-molybdenum. The preparation method of the ferromolybdenum sample comprises the following steps: adding anhydrous lithium tetraborate, ferromolybdenum, sodium nitrate and lithium carbonate into a container;then, adding a release agent for the first time for pre-oxidation treatment; carrying out first-stage melting, and then cooling to room temperature; and after the release agent is added for the second time, performing second-stage melting, and then performing cooling. In the process of preparing the ferromolybdenum sample, the release agent is added twice at different moments, so that the total use amount of the release agent can be reduced, and the waste and loss of the release agent are avoided; the problems of cracking and difficulty in demolding due to local excess of the release agent caused by one-time addition of the release agent are solved; meanwhile, the sample is not easy to crack.

The invention discloses a formula of health-care buccal tablets capable of refreshing, relieving fatigue and clearing heat from throat. The formula of the health-care buccal tablets is prepared from the following raw materials in parts by weight: 15 to 25 parts of honeysuckle flowers, 9 to 18 parts of dandelion, 16 to 22 parts of lemon, 4 to 9 parts of momordica grosvenori, 18 to 25 parts of coffee, 30 to 38 parts of green tea, 20 to 40 parts of areca-nut, 4 to 10 parts of liquorice roots, 6 to 12 parts of fructo-oligose, 6 to 12 parts of maltodextrin, 1 to 3 parts of magnesium stearate, 1 to3 parts of a talcum powder and 1 to 4 parts of soluble starch. The invention also discloses a preparation method of the formula of the health-care buccal tablets. The health-care buccal tablets are prepared by sequentially decocting and extracting the raw materials, concentrating into paste and preparing a dry paste fine powder, granules and tablets. The health-care buccal tablets capable of refreshing, relieving fatigue and clearing heat from throat, which is provided by the invention, can improve the immunity of a human body, enables people to feel excited, can eliminate fatigue after intensive labor, can relieve sore throat and can reduce throat discomfort.

The invention discloses a car brake drum. The car brake drum comprises a cylindrical brake drum main body, wherein one end of the brake drum main body is a connecting part while the other end thereof is a brake part; more than three air door grooves are formed in the outer edge of the connecting part; a pressing steel ring is arranged on the outer edge of the brake part; multiple circular arc-shaped radiating ribs are uniformly arranged on the outer wall of the brake drum main body. The car brake drum is convenient to install as more than three air door grooves are formed in the outer edge of the connecting part of the brake drum and the number of the air door grooves is added, is good in heat radiation effect as the circular arc-shaped radiating ribs are uniformly arranged on the outer wall to generate an airflow during the work time, and is not easy to crack as the pressing steel ring is arranged on the outer edge of the brake part of the brake drum.

The invention relates to an imitation leather decorative film with metal wires. The decorative film comprises a lower substrate layer (1) and an upper imitation leather layer (3) and is characterized by further comprising a middle metal wire layer (2) which is formed by use of metal wires in network distribution. As the middle metal wire layer is added to the imitation leather decorative film and the metal wires are in network distribution, a knapsack or a handbag manufactured by use of the imitation leather decorative film is not easy to cut apart by a blade and the property safety of a user is protected.