52results about How to "Physiologically inert" patented technology

The present invention relates to a double-component platinum catalyst curing agent. It includes agent A and agent B which can be uniformly mixed when they are used, in which the agent A is mixture of vinyl raw rubber, gas phase white carbon black and platinum complex, and the agent B is mixture of vinyl raw rubber, gas phase white carbon black, silicon oil whose end contains hydrogen and inhibitor. When the agent A and agent B are mixed, their mass ratio is agent A: agent B = (0.8-1.0)(1.0-1.5). Said invention also provides the preparation method of said double-component platinum catalyst curing agent.

The invention relates to a high-efficiency antifoaming agent and a preparation method thereof. The high-efficiency antifoaming agent is mainly composed of fluorosilicon oil, triphenylmethane, a nonylphenol polyoxyethylene ether emulsifier, deionized water and a thickening agent. The high-efficiency antifoaming agent has characteristics of strong antifoaming efficacy, low surface tension, low volatile, no toxicity, no pollution and physiological inertness, and also is resistant to high temperature and strong alkalinity.

The invention discloses vinyl siloxane grafted hydrogen-containing silicone oil and a preparation method thereof, and belongs to the technical field of organic synthesis. The vinyl siloxane grafted hydrogen-containing silicone oil is provided, and modified hydrogen-containing silicone oil is obtained by an addition reaction of a C=C bond with a Si-H bond. The vinyl siloxane grafted hydrogen-containing silicone oil and the preparation method thereof are also provided, and the method comprises the following steps: first stirring hydrogen-containing silicone oil and performing slow heating; thensequentially adding a solid platinum-containing catalyst and vinyl siloxane, and carrying out a reaction at a constant temperature for a period of time; and finally performing cooling, and filtering out the platinum-containing solid catalyst to obtain the vinyl siloxane grafted hydrogen-containing silicone oil. In the preparation reaction system, preferably the platinum content accounts for 0.02-0.06% of the mass of the hydrogen-containing silicone oil, and preferably the molar ratio of the C=C bond in the vinyl siloxane to the Si-H bond in the hydrogen-containing silicone oil is (1-1.05):1; and the vinyl siloxane grafted hydrogen-containing silicone oil with high viscosity and low hydrogen content can be obtained under reactive solvent-free conditions.

The invention discloses a high-moisture-retention VOC-free iron oxide color paste and a preparation method thereof. The high-moisture-retention VOC-free iron oxide color paste is composed of a dissolution-assisting moisture-retaining agent, a pH adjusting agent, a novel foam-inhibiting defoaming agent, a wetting dispersant, an aqueous rheological auxiliary agent, an iron oxide pigment and deionized water. The preparation method comprises: 1) adding the dissolution-assisting moisture-retaining agent, the pH adjusting agent, the novel foam-inhibiting defoaming agent and the wetting dispersant into deionized water and mixing uniformly; 2) slowly adding iron oxide pigment and performing high-speed dispersion, so as to form uniform paste dispersion under high-speed stirring state; 3) sending the paste into a ball mill by a pump and performing grinding dispersion for 2-5 times until the fineness of the paste dispersion is less than 2 mu m; and 4) adding the aqueous rheological auxiliary agent into the grinded paste dispersion, and adjusting the viscosity scope at 70-85 KU, so as to obtain the iron oxide ultrafine aqueous color paste dispersion. The high-moisture-retention VOC-free iron oxide color paste is easily controllable in quality, good in moisture retention performance, high in stability and small in environmental pollution.

The invention relates to a ceramic dielectric filter and a method for conducting and fixing the ceramic dielectric filter and an antenna coupling plate. The filter adopts a spring pin assembly, wherein the spring pin assembly comprises a pin tube, a spring and a contact pin, the spring and the contact pin are arranged in the pin tube, the spring can buffer stress to prevent the contact pin from being damaged, and the stability of signal transmission between the contact pin and the antenna coupling can also be ensured. The ceramic dielectric filter is assembled and fixed by means of crimping ashielding fixing cover, so that the defects of easy damage or unstable contact of the ceramic dielectric filter in the prior art due to the adoption of electrode or contact pin welding for signal transmission and inconvenient disassembly caused by welding and fixing the filter are overcome, the signal transmission performance of the ceramic dielectric filter is improved, the signal transmission isstable, and the disassembly is convenient.

The invention relates to an electrified cleaning agent for high-pressure jet cleaning and a preparation method of the electrified cleaning agent. The electrified cleaning agent comprises the followingcomponents in parts by weight: 2-8 parts of a cleaning material, 50-60 parts of dipropylene glycol, 5-10 parts of ethanol, 10-20 parts of dimethyl silicone oil, 8-15 parts of a nonionic surfactant, 0.1-0.5 part of a mildew preventive and 0.2-0.8 part of an antistatic agent. The electrified cleaning agent disclosed by the invention is widely applied to maintenance of equipment such as high- and low-voltage power distribution cabinets, insulators, transformers, motors, large electromagnetic valves, electric welding machines, various electric equipment tools and the like; various comprehensive pollutants such as greasy dirt, dust and carbon powder attached to electric and electrical mechanical equipment can be rapidly removed; the volatilization speed is high, oil stains can be thoroughly dissolved, complete volatilization can be achieved, no residue is left, and no flash point exists; and the electrified cleaning agent is harmless to metals, coating veneers, insulating covering layers,alloys, dissolution-resistant rubber, plastics and the like.

The invention discloses a condom containing a nano-scale material and a manufacturing method for the condom. The manufacturing method comprises the following steps: S1, placing a condom base body into a plasma environment to pre-process; S2, forming a layer of fluoride with a nano-scale grain size on the surface of the condom base body. The condom with a nano-scale fluoride outer layer is small in bore diameter and can be used for blocking virus with a diameter of tens of nanometers. The polytetrafluoroethylene PTFE has a friction coefficient of only 0.04 and high self-lubrication, so that physical lubricating oil is not required to be especially added to a condom body.

The invention relates to a special sampling bottle for collecting a water sample containing a volatile substance and an oxygen-sensitive substance. The special sampling bottle structurally comprises a bottle body for accommodating the water sample, a bottle cover covering the upper opening of the bottle body, and a plunger mechanism plugging the top opening in the center of the bottle cover, wherein the plunger mechanism comprises a fixed pipe, a T-shaped padding plug and a protection cap. Due to a special bottle body structure and a special bottle cover structure, the bottle cover and the bottle body can synchronously discharge a certain amount of water in the bottleneck in a buckling process, so that the sampling bottle is not required to be vertical absolutely no matter whether the site is flat or not; after the sampling bottle is full of the water sample, even if certain water-sample-free redundant spaces are retained in the bottleneck, all the redundant spaces other than the water sample in the bottleneck can be discharged during filling type buckling of an inner sealing cover as long as the volumes of the retained spaces are smaller than the extruded volume of the inner sealing cover on the bottle cover; therefore the sampling bottle can be full of the water sample, no redundant space is retained, and sampling can be succeeded at one step.

The invention discloses a silica gel band aid, characteristics of other applications (such as fingerstalls for massage therapists), and manufacturing method thereof. The silica gel band aid is soft and ventilated like skins of people; the skins covered by the silica gel products can perspire and ventilate normally; because of the hydrophobicity and physiological characteristics of the band aid, the band aid does not have pollution, bacteria breeding, and protects skin from being white and deformed. The method comprises the following steps: adding peroxide vulcanizing agent, a blowing up agent,boric acid grease and the like in an open mill in sequence, and sufficiently mixing the components; crosslinking and blowing up the mixture in a vulcanizing machine; and coating an alkoxyl silane compound taking ethanol as a solvent on a film, and grafting and combining the mixture in a thermostat tank. The band aid has simple process, easily obtained raw materials, excellent performance, easy industrialization and wide application, and brings good news to skin injured people and people requiring labor protection.

The invention relates to the technical field of glue, particularly to a formula and a process of environment-friendly epoxy resin glue. The epoxy resin glue is prepared from the following raw materials in parts by weight: 55-80 parts of epoxy resin, 8-15 parts of sodium dodecyl benzene sulfonate, 6-12 parts of potassium persulfate, 2-3 parts of a preservative, 2-5 parts of dibutyl phthalate, 2-5 parts of nanometer silicon dioxide, 4-6 parts of glass fibers, 3-6 parts of a low-temperature-resistant anti-freezing agent, 4-10 parts of a modifier, 2-4 parts of a quick drying agent, 5-8 parts of anodor masking agent, 2-4 parts of scented water and 220-280 parts of deionized water. By arranging the low-temperature-resistant anti-freezing agent, the modifier, the quick-drying agent, the odor masking agent, the scented water and the glass fibers, the epoxy resin glue has a quick solidification function, corrosion resistance, high-temperature resistance, low-temperature resistance and the like, and is environmentally friendly.

The invention provides a novel template structure with a steel template attached to Teflon and a manufacturing method of the novel template structure. The novel template structure comprises the steel template, several tetrafluoroethylene plates are laminated on the steel template, two sides of the tetrafluoroethylene plates are wedge-shaped, fastening blocks are arranged between the adjacent tetrafluoroethylene plates, two sides of the fastening blocks are provided with inclined surfaces matched with two wedge-shaped sides of the tetrafluoroethylene plates, the lower portions of the fastening blocks extend into convex portions embedded into the steel template, and the fastening blocks are fixedly connected with the steel template . The novel template design method for attaching the Teflon plates to a common steel plate by a new process is researched. The template has the advantages that using times of the template is increased, appearance quality of concrete is improved, cost is saved, construction period is shortened and the like.

The invention discloses a U-shaped capacitive liquid level meter, which is composed of an electrode insulation outer sleeve, a transmitter casing, a displayer, a transmitter circuit, an inner electrode, a flange and an outer electrode. The transmitter circuit is composed of a power supply circuit, a pulse output circuit, a phase step time integrating circuit and an RC phase step circuit. The U-shaped capacitive liquid level meter has the advantage that 1 the electrode sleeve adopts the U-shaped structure in design, the changing area is twice that of pole type sleeve, and measurement is led tobe stable and accurate; and 2 the liquid level meter adopts a Teflon pipe with good performance as a material, the material has the advantages of high temperature resistance, abrasion resistance, weather resistance, high lubrication, non-adhesiveness, non-toxicity and excellent electric performance, and the liquid level meter can perfectly and completely measure liquid level under the effects of temperature, pressure fusion, molasses adhesion, molasses adhesion and scale deposition even the dielectric parameter is affected by temperature.

The invention discloses a production method of slush-molded silicone rubber artware, belonging to the technical field of high polymer materials. The slush-molded silicone rubber artware prepared by the preparation method in the invention can prevent harm caused by mistaken eating; and silica gel has good fluidity, and a slush molding process is adopted, so the slush-molded silicone rubber artwarehas high temperature resistance and corrosion resistance, and is high in tensile strength and tearing strength, small in shrinkage rate, high in mold turnover frequency, low in shrinkage rate, free ofrelease of substances such as a low-molecular plasticizer in the crosslinking and using process, unchanged in size, small in shrinkage rate, food-grade, free of toxicity and odor, elastic and comfortable to touch and good in ornamental effect.

The invention relates to a new radiation-proof material. The new radiation-proof material is used to make a TV main board and/or a power board, the TV main board and/or the power board comprises a radiation-proof layer, a bonding layer and a heat dissipation layer in order from inside to outside, and the radiation-proof layer is pasted with the heat dissipation layer into one through the bonding layer. The chemical composition of the radiation-proof layer is: polyvinyl chloride; organosilicon; cis-polybutadiene; silk fiber; a waterborne acrylic emulsion; silver powder; a compatibilizer; a plasticizer; a thermal stabilizer; and an antioxidant, wherein a mass ratio of polyvinyl chloride to the silk fiber to the silver powder is 5-9:1:1-1.5, the antioxidant is a mixture of zinc dialkyl dithiophosphate and zinc dialkyl dithiocarbamate mixed according to 1:1, and a mass ratio of the organosilicon to the cis-polybutadiene to the waterborne acrylic emulsion is 1:1:0.8. The new radiation-proofmaterial can effectively prevent electromagnetic wave radiation, can avoid an excessive thickness of the TV main board and the power board, and at the same time can ensure the strength, so that the performance of the TV main board and the power board is greatly improved.

The invention discloses a photo frame which comprises a frame, wherein a groove is formed in the upper part or the lower part of the frame; a bubble level is arranged inside the groove; a transparent plate which is rotationally connected with the frame and is used for movably sealing the groove is arranged at the opening of the groove; a positioning shaft is arranged on the frame; a limiting rod which can rotate around the positioning shaft till being propped against the transparent plate to fix the transparent plate is connected with the positioning shaft in a sleeving manner. The invention further discloses water-borne wood paint coated on the frame. The water-borne wood paint comprises the following components in parts by weight: 75-85 parts of polyacrylic resin, 3-5 parts of propylene glycol monomethyl ether acetic ester, 0.1-0.3 part of dimethyl silicone polymer, 0.1-0.8 part of fumed silica, 0.3-0.5 part of a thickening agent, 13-17 parts of a coloring agent, 0.4-0.7 part of an ultraviolet absorber and 10-15 parts of deionized water. The photo frame has the beneficial effects that the bubble level can be conveniently replaced, so that the photo frame can be always mounted by people under the guidance of the bubble level, and moreover the water-borne wood paint has a function of protecting the photo frame, so that the service life of the photo frame can be prolonged.

The invention discloses a valve material of a puncture outfit. The valve material comprises, by weight, 25-45 parts of polydimethylsiloxane, 1.5-3 parts of polymethylsiloxane, 0.5-1.2 parts of platinum complex, 6-13 parts of graphene, 3-7 parts of white mineral oil, 0.2-0.7 part of gel film agent, 6-10 parts of carbon black, 7-15 parts of clay, 2-6 parts of barium sulfate, 0.3-0.5 part of magnesium hydroxide, 1-3 parts of hydroxy fluorosilicon oil, 1-2 parts of polyethylene wax and 1-1.8 parts of glycidyl ether. The invention further discloses a preparation method and application of the valvematerial of the puncture outfit. The valve material of the puncture outfit has the advantages that since a more environment-friendly valve production material is selected, the prepared valve has the characteristics of no unpleasant odor, no toxicity and resistance to high temperature and cold and has outstanding characteristics of physiological inertia and no proneness to blood coagulation; a moreoptimized production technology is adopted, full automatic production can be realized, yield of valve products is increased, production cost is reduced, medical expense burden on patients is reducedfurtherly, and remarkable social benefit is realized.

The invention discloses a formula of a negative ion antibacterial antimite sponge, the negative ion antibacterial antimite sponge is prepared from the following raw materials: 85-90% of a sponge solution, 6-7% of an antibacterial agent, 2-6% of negative ion powder and 1-3% of a blowing promoter, the sponge solution is prepared from the following raw materials: 5-10% of silicone oil, 75-80% of polyester resin, 3-10% of fiber and 2-5% of a resin binder, The negative ions are confirmed to be an effective means for purifying air during use of thenegative ion antibacterial antimite sponge , and the antibacterial agent has the functions of killing germs and preventing bacteria breeding, so that the sponge has the effects of promoting metabolism of a human body, improving the immunity of the human body, enhancing the muscle energy of the human body, regulating the functional balance of the human body, resisting bacteria and preventing mite breeding; and the silicone oil has heat resistance, electrical insulating property, weather resistance, hydrophobicity, physiological inertia and small surface tension, so that the surface of the sponge prepared according to the formula is smoother, the pore diameter of bubbles in the sponge is reduced, and the elasticity of the sponge is better.

The invention discloses a gear transmission system convenient adjustment and good using capacity. The system comprises a mounting side plate, a driving motor and an arc-shaped shielding block. A second shaft sleeve is mounted at a top end of the mounting side plate through a limiting piece. A cushion block is welded to a lower end of the second shaft sleeve. A sliding groove is formed in a top ofthe cushion block through a bolt; two ends of the sliding groove are sleeved with sliding blocks. Third shaft sleeves and first shaft sleeves are installed on the sliding blocks through bolts. And a bearing is embedded in one end of each sliding block, opposite-pull blocks are welded to the two ends of the sliding groove, threaded sleeves are arranged on the opposite-pull blocks, a driving motor is installed on one side of a bottom end of the mounting side plate through bolts, and an output shaft of the driving motor is connected with a fourth gear. The novel gear transmission system with convenient adjustment and good using capacity is diversified in function, easy to operate, convenient to produce, capable of meeting various requirements in use and suitable for wide application and popularization.