60results about How to "No environmental requirements" patented technology

The invention relates to the technique to synthesize alkide resin modified epoxy vinyl resin. According to a certain compounding ratio, diphyenylol propane epoxy resin, organic monobasic unsaturated carboxylic acid, biatomic acid, catalyst agent and inhibitive substance are fed into a reactor to do ring cleavage esterification, then based on the existence of inhibitive substance, crosslinked monomer is added to deliquate and modified alkide resin and accelerating agent are added to accelerate in advance. The invention has the beneficial effects that: in ring cleavage esterification, the biatomic acid is employed as chain extender, and the alkide resin is added in the deliquating process (45 to 120 mg KOH/g hydroxyl value and 5 to 15 mgKOH/g acid value) to mix and modify, which largely strengths resin ductility, causes resin casting tension set is more than 8 percent, impact strength is above 20 KJ/m2; meanwhile largely reduces the resin solidification shrinkage ratio, improves the bonding strength, meets special compound material need as a result. The synthetic technique of the invention is simple, conformity with environmental protective and has good production stability without producing waste gas, waste water, and waste residue.

The invention provides a catalyst for hydrogenation refining, wherein the main active constituent of the catalyst is Ni, the auxiliary agent is Mo, the carrying agent is Ti-modified SiO2, the content of NiO is 20-60 wt%, the content of MoO3 is 0.5-10 wt%, the content of TiO2 is 2-20 wt%.

The invention relates to a halogen-free flame-retardant nylon 66 composite material. The composite material is prepared from the following components in parts by weight: 53-67 parts of nylon 66 resin, 0.3-0.4 part of coupling agent, 17-21 parts of halogen-free flame retardant, 0.2-0.4 part of nucleating agent, 0.3-0.4 part of antioxidant, 0.2-0.3 part of lubricant and 15-25 parts of fiberglass, wherein the halogen-free flame retardant is a mixture of a halogen-free organic phosphorus flame retardant and an expandable phosphorus-nitrogen flame retardant. The halogen-free flame-retardant nylon 66 composite material is prepared from nylon 66 resin, the halogen-free flame retardant, fiber glass, the nucleating agent and other auxiliary agents by high-temperature extrusion and granulation, thus the material has good flame-retardant effect, can reach V-0 level in UL-94 and meets the flame-retardant requirements; and at the same time, the flame retardant is prepared by mixing the halogen-free organic phosphorus flame retardant and the expandable phosphorus-nitrogen flame retardant, thus the composite material has no pollution, meets the environmental protection requirements, has excellent comprehensive properties and can be widely popularized and applied. In addition, the invention also relates to a preparation method of the halogen-free flame-retardant nylon 66 composite material.

The invention discloses an environment-friendly type all-purpose adhesive, which is prepared from SBS, and petroleum resin, polymerized resin, colophonium, terpene resin, cyclohexane, methylene chloride, acetic acid ethyl ester, No.6 solvent oil, and dichloroethanes. The invention also discloses the process for preparing the all-purpose adhesive.

The invention relates to an ultrahigh-speed permanent magnet disk motor. The motor comprises a first stator core, a second stator core, a stator winding, an enclosure, a heat dissipation pipeline, a front end cover, a rear end cover, a high-speed rotor and ceramic bearings, wherein the high-speed rotor comprises a high-speed rotor core, permanent magnets, a rotor sheath and a rotor shaft; and thehigh-speed rotor core is installed on the rotor shaft in a sleeving mode, permanent magnet wedge-shaped installing slots are processed in the radial direction to install the permanent magnets, the permanent magnets are installed at the two axial sides of the high-speed rotor core, and the rotor sheath is installed on the high-speed rotor core. The motor has high mechanical strength and is suitablefor ultrahigh-speed running; and moreover, a good heat dissipation system is designed, and the situation that the permanent magnets are demagnetized during ultrahigh-speed running of the disk motor is prevented. The invention not only provides an ultrahigh-speed permanent magnet motor scheme but also discloses a motor assembling method.

The invention discloses a preparation method of a catalyst applied to preparation of propylene carbonate from CO2 and epoxypropane. The preparation method comprises the following steps: (1) reflowing alkyl imidazole and chloromethyl polystyrene microspheres in a methylbenzene solvent for 12-36 hours, filtering, washing with methylbenzene and propylene carbonate respectively, performing vacuum drying for 12-24 hours at 60-80 DEG C to prepare an active component A; (2) crushing and mixing the active component A together with zinc salt, phenolic resin and methenamine to obtain powder, tabletting and moulding to obtain an active precursor B; (3) heating the active precursor B for 0.5-4 hours at 120-200 DEG C under the production of nitrogen, and crushing the active precursor B into 20-40-mesh particles to obtain a catalyst C. The catalyst prepared by the preparation method achieves catalytic reaction for stably synthesizing the propylene carbonate from CO2 and epoxypropane by a long period on a fixed bed reactor.

The embodiment of the invention discloses a prompting method for adjusting a shooting angle, and the method comprises the steps: obtaining the preview frame data of a current environment through the camera equipment of an intelligent terminal, and carrying out the intelligent analysis and calculation of the preview data, and obtaining the optimal shooting position of a current region. And then theuser is guided to move the lens of the intelligent camera to a recommended position through the guide frame. When the lens of the user reaches the recommended position, the software can score the current view finding position, after the preset score is reached, the system can recommend the user to take a photo at the current position, and if the preset score is not reached, the system can recalculate a better shooting position according to the current lens position, and then the user is guided to move the intelligent device and take a photo. And the guiding process is repeated for about 1-3 times. Through the scheme of the invention, the photographing efficiency is improved. And a photo with certain professionality can be shot.

The invention discloses a production process of environment-friendly cattle hide mattress. The production process includes the following steps: primary tanning, finely cutting, shaping and drying, mill-softening, spray-scalding, cutting, splicing, quality inspection, and storage in storerooms to obtain a real leather mattress finish product. Compared with the prior art, the production process is safe and environment-friendly and is free of pollution. The prepared leather is free of heavy metal and formaldehyde and satisfies environment requirement. By means of a bio-enzyme preparation for degrading and dissolving materials, an aqueous solution for dissolving the materials can be recycled without water resource waste. The prepared leather has a good hand feel, is excellent in elasticity, smoothness and extensibility. The mattress is safe to use and is free of damage on human body.

The invention relates to a ceramic shell mould used for beryllium aluminium alloy, and a preparation method thereof. The ceramic shell mould used for beryllium aluminium alloy is composed of a surface layer, a transition layer, and a reinforced layer; the surface layer is prepared by taking calcined alumina powder with a granularity of 300 to 325 meshes, and alumina sand with a granularity of 80 to 120 meshes as raw materials; the transition layer is prepared by taking mulgrain powder with a granularity of 200 to 225 meshes, and mulgrain sand with a granularity of 25 to 36 meshes as raw materials; the reinforced layer is prepared by taking mulgrain powder with a granularity of 200 to 225 meshes, and mulgrain sand with a granularity of 10 to 16 meshes as raw materials. According to the ceramic shell mould, alumina and mulgrain sand which possess no toxicity, and are cheap are taken as raw materials, so that the obtained ceramic shell mould possesses no toxicity, is safe and reliable, possesses high temperature resistance, high strength, and high stability, and no pollution is caused. The materials are low in cost, so that raw material cost and protection cost are reduced greatly; the preparation method is simple; process flow is short; production cost is low; and stability and finished product yield of obtained beryllium aluminium alloy products are high.

The invention discloses a termite detection device and a detection method thereof. The device comprises a shell with openings allowing termites to enter and bait bars arranged in the shell, each bait bar is provided with a sealed deep hole, and each deep hole is internally provided with an air pressure sensor; the device further comprises air bottles and a controller; the air bottles are communicated with the deep holes through a switch, and when the switch is switched on, the air bottles inflate the deep holes; the controller is connected with the air pressure sensors and used for judging whether air pressure sensed by the air pressure sensors reaches a preset air pressure value or not after a first preset time after the switch is switched on, if yes, it is shown that the deep holes are not bitten through by the termites, and if not, it is shown that the deep holes are bitten through by the termites. The method comprises the steps that the switch is switched on, and the deep holes are inflated; after the first preset time, whether the air pressure reaches the preset air pressure value or not is judged, and therefore whether the deep holes are bitten through or not is judged. According to the termite detection device and the detection method thereof, no drug prevention is needed, the environment cannot be polluted, the application range is wide, and the false alarm rate is low.

The invention provides a preparation method for a positive electrode material lithium cobalt iron phosphate for a lithium ion battery. The chemical formula of lithium cobalt iron phosphate is LiFe<x>Co<1-x>PO<4>/C, wherein x is greater than or equal to 0.1 and less than or equal to 0.2; the preparation method comprises the steps of adding phosphoric acid into deionized water to prepare a phosphoric acid solution; adding reduced iron powder under a stirring state, enabling the mixture to be reacted to obtain a clear mixed solution; adding a lithium hydroxide solution to the mixed solution; after the solution is cooled, adding the cooled solution to a nanometer ball mill, and adding cobalt hydroxide; carrying out ball milling on the mixture, and then adding a caramel solution, stirring uniformly the ball-milled product, and spraying and drying the product to obtain a spherical lithium cobalt iron phosphate/carbon composite material precursor powder; and calcining the precursor powder at a temperature of 600-700 DEG C under a nitrogen atmosphere to obtain the positive electrode material for the lithium ion battery. The positive electrode material for the lithium ion battery obtained by the invention has relatively high energy density and high cycle performance, and can be expected to be the new generation of high-energy-density positive electrode material for the lithium ion battery.

The invention discloses a detector for detecting the outline cross section shape of a bridge cable. The detector comprises a climbing robot, a transition sleeve, a rotary supporting seat, a rotary sleeve and a ranging sensor. The detecting object is a bridge cable cylinder, the climbing robot is located on the to-be-detected bridge cable cylinder, the transition sleeve is coaxially installed on the climbing robot by adopting two semicircles with same diameters, and the rotary supporting seat is fixedly connected with the transition sleeve. The rotary sleeve wraps a plurality of circumferentially distributed rolling columns through two semicircular structures, and the rotary sleeve can rotate positively and negatively around the bridge cable cylinder. The ranging sensor is located on the rotary sleeve and used for measuring the cross section shape of the bridge cable cylinder. The detector provided by the invention can conveniently penetrate through the to-be-detected cable and be arranged around the cable, and can rotate flexibly according to requirements. The detector fills in the gap that rotation of traditional cable movable detection cannot be achieved, cable damage detection meets the requirement for no blind angles, meanwhile cable damage detection is simple and reliable, and the detector has the great application value.

The invention provides a scald ointment and a preparation method thereof; the scald ointment is mainly prepared from the following raw materials in parts by mass: 15-50 parts of borneol, 400-600 parts of a lubricant, and 8-150 parts of an antibiotic. The preparation method includes the steps: respectively grinding the borneol and the antibiotic into powder, then mixing and stirring the powder with the lubricant for 15-30 minutes, and thus obtaining the scald ointment. The scald ointment provided by the embodiment of the invention is suitable for different people, has wide application range, can effectively treat scalds caused by different reasons, and has the effects of simple formula, good curative effect, small side effect and fast pain relieving speed.

A high-level simulation lightning-protection principle science popularization displaying system comprises a hand cranking mini-generator; the output end of the motor is connected with a conductor which stands for a lightning rod through a wire, and the conductor is connected with a LED (Light Emitting Diode) indicator light which stands for the earth. The invention utilizes a real object assembly to form a set of devices which can imitate and reappear the lighting-protection principle. The high-level simulation lightning-protection principle science popularization displaying system has the advantages of being simple in structure, being easy to operate, requiring no environment conditions and utilizing the familiar things or phenomena to reappear and explain the complicated and profound scientific principles to enable the scientific principles easy to accept.