71results about How to "Eliminate foam" patented technology

Belonging to the field of vacuum glass and its edge-sealing technologies, the invention relates to a vacuum glass with a metal edge-sealing structure and a making method thereof. The vacuum glass comprises two flat glass sheets, a plurality of supports and a sealing layer. A metal transition layer is respectively cured on a sealing surface of the two flat glass sheets, and the two metal transition layers are fused and sealed by a metal layer formed by a low-melting-point metal welding material, and the fused and sealed metal transition layers and the metal layer form the low-melting-point metal sealing layer. The technical scheme involved in the invention not only can realize convenient and low-cost metal edge-sealing of vacuum glass, is easy to realize large-scale production, but at the same time also can realize low temperature (130DEG C-400DEG C) sealing of vacuum glass and lead-free manufacturing. Therefore, the vacuum glass and the method provided by the invention have great significance in reducing the production cost of vacuum glass and broadening the application scope of vacuum glass.

A mixing system (1) adapted to allow first contents of a first container (2) and second contents of a second container (3) to mix to form a material. The mixed material is retrieved to a syringe (20) without being foamed. The mixing system (1) comprises a transfer unit (5) which is adapted to receive the first container (2) at a first port (11), the second container (3) at a second port (12) and the syringe (20) at a third port (13). The transfer unit (5) further houses a number of fluid pathways (14, 15, 16) interconnecting the three ports (11, 12, 13) as well as a number of flow control members (17, 18, 19, 22) for controlling fluid flow between the containers (2, 3) and the syringe (20). At least one of the flow control members (17, 18, 19, 22) allows a user to switch between two states of fluid flow, one in which fluid flow is enabled between the first port (11) and the third port (13) as well as between the third port (13) and the second port (12), and one in which fluid flow is enabled between the second port (12) and the third port (13). The invention also relates to a transfer unit comprising first and second ports for receiving first and second containers, respectively, a third port for coupling to a syringe, a number of fluid pathways interconnecting the ports, at least one flow control member which allows a user to switch between two states of fluid flow, and a locking means to ensure that the at least one flow control member can only be manipulated when a syringe is coupled to the third port.

According to the invention, methyl methacrylate (MMA), butyl acrylate (BA), ethyl acrylate (EA), acrylic acid (AA) and methacrylic acid (MAA) and trifluoroethyl methacrylate (TFEMA), vinyltriethoxysilane (KH-151) and styrene (ST) and other functional monomers are used as comonomers; benzoyl peroxide (BPO) is used as a chain initiator, a solution polymerization method is used, and a free radical polymerization is carried out through a special process to synthesize organic fluorine-silicon modified waterborne acrylic resin with excellent performance. The resin is extra-weather-resistant, is applied to a water-based acrylic coating, and has advantages of good gloss retention, exterior durability, good pollution resistance and the like. By the use of the resin, water resistance, solvent resistance and heat resistance of a water-based acrylic resin coating can be improved, and hardness and shock resistance of a paint film can be enhanced. As a coating with superior performance, the product has a wide application prospect.

The invention relates to a preparation method and a molding mold of thermal flared end fluoroplastic pipe, which is that a flared end fluoroplastic pip is clamped in a mounting hole of a flared end cavity die with a trumpet flared end and rotates with a chuck of a lathe spindle; a male die expander with a heater and temperature control device is used for heating the head the flared end to flaring temperature and the head the flared end is fed through a lathe tail spindle to ensure that the fluoroplastic pipe is intenerated in rotating and tightly joined and matched with trumpet flared end of the flared end cavity die and cooled to form mold. The heater is fixedly connected on a the male die expander and electrically connected with the temperature control device controlled the temperature of the flared end; the flared end cavity die clamped in a rotator comprises two symmetrical clutch semicylinders is positioned on the same central line with the flared end head of flared end cavity die. The utility model takes advantage of the cold flow property of fluoroplastic to solve the defects that stress centralizes and leaves at the flared end, material is easily decomposed and the flared end is easily cracked. The invention ensures that the wall thickness of expanded trumpet flared end is more uniform and the surface of the flared end is smoother and avoids the occurrences of crinkle, forting and rippling.

The invention provides a dry mixing waterproof mortar with high crack resistance. The dry mixing waterproof mortar contains the following raw materials in parts by weight: 400-410 parts of cement, 1400-1450 parts of machine-made sand, 70-75 parts of coal ash, 0.8-4 parts of acrylic based emulsion powder, 0.8-4 parts of EVA emulsion powder, 3-12 parts of styrene-butadiene latex, 100-120 parts of modified towel gourd fiber, 100-120 parts of ramie fiber, 50-60 parts of bamboo charcoal fiber, 70-100 parts of seaweed meal, 0.8-1.0 part of organic silicon defoamer and 280-350 parts of water. According to the invention, all the raw material components are matched with one another and have a synergic effect, so that the prepared mortar has the advantages of high toughness, high rupture strength, high compressive strength and excellent anti-cracking ability and has a certain adsorptive property and a bactericidal ability; the matching relation of all the raw material components is reasonable; all the raw materials can be uniformly mixed; the dry mixing waterproof mortar is harmless to environment and conforms to the idea of low carbon, environmental protection and sustainable development.

The invention discloses an aluminium electrolysis used carbon anode antioxidation layer with good associativity with a carbon anode basal body, excellent antioxidation performance and low cost. The invention also discloses a method for coating the antioxidation layer. The aluminium electrolysis used carbon anode antioxidation layer of the invention comprises the antioxidation layer of a bottom layer, the antioxidation layer of a barrier layer and the antioxidation layer of a surface layer from bottom to top. The method for coating the aluminium electrolysis used carbon anode antioxidation layer comprises following steps: firstly, spraying slurry coating of the bottom layer once or twice, wherein spraying time interval is 2 to 3 hours, drying under normal temperature, secondly, spraying the slurry coating of the barrier layer twice or three times, wherein the spraying time interval is 2 to 3 hours, drying under the normal temperature, thirdly, spraying the slurry coating of the surface layer once or twice, wherein the spraying time interval is 2 to 3 hours, and drying under the normal temperature.

The invention relates to the technical field of sealants, more specifically relates to a sealant, in particular to an acrylate modified polyurethane sealant and a preparation method thereof. The acrylate modified polyurethane sealant is prepared from the following raw materials in parts by weight: 20 to 60 parts of acrylic acid modified polyurethane resin, 1 to 10 parts of liquid acrylate, 15 to 35 parts of a plasticizer, 20 to 50 parts of filler, 0.5 to 3 parts of an adhesion promoter, 0.05 to 3 parts of a catalyst, 0.05 to 3 parts of a water removal agent and 0.05 to 3 parts of a stabilizer.According to the invention, the acrylate modified polyurethane resin is adopted; the addition type liquid acrylate resin is matched; the prepared sealant is used in a later natural environment; the energy of ultraviolet irradiation can be transferred to acrylate bonds, so that the acrylate bonds are slowly crosslinked, carbamate bonds in a sealant system are protected, meanwhile, due to crosslinking of acrylate, the weather resistance of the sealant is further improved, the cohesiveness is wide, and the outdoor service life of the polyurethane sealant is prolonged.

The invention discloses a detection method of the viable bacterium number of an embedded probiotic product and relates to the technical field of probiotic products. The method comprises the steps as follows: (1) pretreatment; (2) preparation of a thallus suspension; (3) gradient dilution; (4) bacterial colony culture; (5) bacterial colony counting: performing bacterial colony counting on a culturedish in the step (4) to obtain a viable bacterium detection result, wherein a dilution buffer solution in the step (2) is prepared from substances in percentage by weight as follows: 0.3%-0.6% of KH2PO4, 0.5%-0.7% of Na2HPO4, 0.6%-1.0% of NaCl, 0.5%-1.5% of tween-80, 0.05%-0.1% of polyethylene glycol, 0.01%-0.1% of polyoxypropylene glycerol ether, 0.04%0.08% of beta-cyclodextrine and the balanceof purified water. The tween-80 is used as a surfactant to promote dissolution of an embedded layer and completely release probiotics, the added polyoxypropylene glycerol ether and beta-cyclodextrinecan eliminate foam and foreign odors, the counting error is small, the detection result is reliable, strict sterile operation is realized, mixed bacterium pollution is avoided, the detection result credibility is high, and the promotional value is very high.

The invention provides a power cable protection assembly, and belongs to the technical field of a cable. The power cable protection assembly comprises a cable body, a protection sleeve and a supporting mechanism; the cable body consists of an aluminum alloy conductive core, an insulating layer, an inside liner layer, a water-blocking layer, a metal sheath, an outer protection layer and a corrosionresistant layer from inside to outside in sequence; flexible arc-shaped convex strips are uniformly arranged on the inner surface of the protection sleeve at intervals in the longitudinal direction;the longitudinal sections of the flexible arc-shaped convex strips are waveform; through holes are formed, among the flexible arc-shaped convex strips, in the protection sleeve; a filtering net is arranged on the through holes; the supporting mechanism comprises a bottom plate and vertical plates arranged on the two sides of the bottom plate; a first groove is formed in the bottom plate; a rotaryshaft is arranged between the vertical plates in an interval manner; the rotary shaft is partially arranged in the first groove and is in smooth contact with the inner surface of the first groove; andthe top parts of the vertical plates are sealed through a cover plate. The comprehensive performance of the power cable protection assembly is improved and the cable construction difficulty can be lowered, so that the cable can be protected from natural damage or man-made sabotage.

The invention discloses a water-based specially-misty and specially-black surface treating agent for synthetic leather and a preparing method thereof. The surface treating agent is prepared from 45wt% of water-based polyurethane, 40wt% of deionized water, 2wt% to 4wt% of surfactant, 6wt% of silicon dioxide, 3wt% to 5wt% of calcium carbonate, 1wt% of mineral oil and 1wt% to 3wt% of acrylic acid oligomers. The preparing method includes the following steps: 1, the 45wt% of water-based polyurethane is placed into a stirring kettle, the 40wt% of deionized water, the 2wt% to 4wt% of surfactant, the 6wt% of silicon dioxide and the 3wt% to 5wt% of calcium carbonate are sequentially added during low-speed stirring; 2, high-speed stirring is carried out for 20 minutes, and then the 1wt% of mineral oil and the 1wt% to 3wt% of acrylic acid oligomers are sequentially added. According to the surface treating agent and the preparing method, as the water is used as solvents, the cleaner aim and the more environmentally friendly aim are achieved in the production process and the use process, the synthetic leather treated with the surface treating agent is good in color developing performance, the down feeling and the misty degree of the bottoms of lines are quite high, and the high leather feeling is achieved.