34results about How to "Healthy friendly" patented technology

The invention discloses a preparation method of a paper wet strengthening agent that is modified by organic silicon, which comprises the following steps: firstly combines the raw materials of dibasic acid and polyhydric amine into a polyamine intermediate compound of daiamid. A certain amount of the polyamine intermediate compound of daiamid, epoxy chloropropane and an organosilane coupling agent are taken to react under certain temperature so as to achieve certain viscosity, and the reaction is halted by adding acid, thus obtaining the paper wet strengthening agent that is modified by organic silicon. The preparation method of the paper wet strengthening agent that is modified by organic silicon can reduce the usage of the epoxy chloropropane and lower the organic chlorine content in discharged substances; the cross-linked product greatly increases molecular weight and active crosslinking points of molecular chain sections. The product of the paper wet strengthening agent that is modified by organic silicon achieves greatly raised retention degree, can improve not only the wet strength of paper but also the paper physical performance such as folding resistance, tensile strength and dry strength, etc., and the superficial water-proof performance of paper can be greatly raised if the paper wet strengthening agent is coated on the surface of paper.

The invention discloses a quick and intelligent defective optical lens detection device and method. The detection device comprises a camera, an image analysis unit and a liquid crystal display panel which are sequentially connected. The method includes the following detection steps that optical lenses to be detected are placed on the liquid crystal display panel and background light of the liquid crystal display panel enters a camera head of the camera through the optical lenses; acquired images are output to the image analysis unit through the camera and segmented through the image analysis unit, and therefore sub-images corresponding to all the lenses are acquired; the image analysis unit compares the sub-images with a standard image corresponding to a standard lens for identification, and identification results indicating whether the lenses are defective or not are acquired and reflected through colors in the regions, corresponding to the lenses, on the liquid crystal display panel. By the adoption of the device and method, batch detection can be achieved, detection efficiency is high, and the results are objective and accurate.

The invention discloses a treatment method for oil sludge. According to the method provided by the invention, biosurfactant lipopeptide with superior surface / interface activity is used as an oil sludge cleaning agent for washing the oil sludge to desorb oil from the oil sludge, at the same time, an acid is added for post-treatment, so that an oil phase, a sludge phase and a water phase are separated, and oil recovery can be realized; the lipopeptide can be a fermentation broth of bacillus subtilis, a crude extract of the fermentation broth, or a purified pure product, and the lipopeptide can be used alone or in combination with a chemical surfactant; and the method provided by the invention can efficiently remove the oil in the oil sludge, is simple to operate and environmentally friendly,and has good application prospects in the harmless treatment and resource recovery of the oil sludge.

The invention provides an aviation gasoline composition capable of being used as 91 # lead-free aviation gasoline and a production method thereof, the aviation gasoline composition contains base oil and an additive, and the base oil contains a blending component A, a blending component B and an optional blending component C. The aviation gasoline composition disclosed by the invention meets various index requirements of ASTM D910 standard, ASTM D7547 standard and GB 1787-2018 standard on anti-knock property, evaporability, low-temperature fluidity, stability and the like of 91 # aviation gasoline, meanwhile, the blending components are few, and the components do not need to be highly refined, are cheap and easy to obtain and are wide in source. Besides, the aviation gasoline composition does not contain tetraethyl lead, is environment-friendly, and can meet the requirements of people on environmental protection.

The invention relates to the technical field of fine chemical engineering, and discloses a water-based paint ink for a valve type pen. The water-based paint ink is prepared from the following components in percentage by mass: 10 to 20% of water; 0.1 to 0.5% of a defoaming agent; 0.8-2% of a wetting dispersant; 15-25% of waterborne acrylic resin I; 5-10% of waterborne acrylic resin II; 20 to 50% ofa white water-based color paste; 0.1%-0.3% of a preservative; and 0.05-10% of other auxiliary agents. The water-based paint ink for the valve type pen can achieve various properties of existing solvent type paint pen ink, has the advantages of being high in drying speed after writing, good in weather resistance, good in adhesive force on various writing base materials and the like, is basically odorless, environment-friendly and non-toxic, and can meet the safety technical standards of European Union and America.

The invention discloses wind turbine blade in-mold gel coat, which comprises a main agent and a curing agent, wherein the main agent is prepared from the following ingredients in parts by weight: 50 to 100 parts of resin A, 0 to 50 parts of resin B; 0 to 100 parts of fillers and 0 to 10 parts of auxiliary agents; the resin A is an non-polyetheramine di-amine compound; the resin B is a polyetheramine di-amine compound; the dosage of a curing agent in the in-mold gel coat is 50 to 100 percent of the weight of the resin. Through experimental test, compared with the existing in-mold gel coat, the in-mold gel coat formed in such a way has the advantages that the curing time is greatly shortened; meanwhile, the weathering performance is greatly improved; high weathering performance and fast curing performance of the in-mold gel coat are realized; a blade paint coating can be directly replaced.

Belonging to the field of electronic industry environment-friendly cleaning agents, the invention provides an environment-friendly cleaning agent for electronic industry and a preparation method thereof, and in particular relates to a PCBA cleaning agent for wave soldering post-weld FLUX residue. The environment-friendly cleaning agent is composed of the following raw materials by mass percentage: 41.2%-42.9% of lower alcohol, 51.1%-56.8% of methylsiloxane, 1%-3% of propylene glycol ether, and 1%-3% of limonene. Compared with existing traditional cleaning agents for electronic industry, the electronic environment-friendly cleaning agent provided by the invention does not contain CFC / HCFC or HAP, is friendlier to workers' health in practical use, is safer and more environmentally friendly to the atmospheric environment, and helps enterprises meet EU ROSH, REACH and HF requirements and enhance international competitiveness.

The invention relates to a bacterial strain for preventing and controlling plant nematodes and its application. The bacterial strain Y149 provided by the present invention belongs to the genus Massilia sp., and has been deposited in the China Center for Type Culture Collection on November 27, 2017. The address of the preservation unit is Wuhan University, Wuhan, China, and the preservation number is CCTCC NO: M 2017745. The present invention also provides the microbial bacterial agent containing the bacterial strain Y149 and its preparation method, and applies the above-mentioned bacterial strain Y149 or the microbial bacterial agent to the preparation of products for preventing and controlling plant nematodes. The bacterial strain Y149 or microbial bacterial agent of the present invention has a good control effect on plant nematodes, and is low in cost and friendly to the environment.

The invention discloses a preparation method of a paper wet strengthening agent that is modified by organic silicon, which comprises the following steps: firstly combines the raw materials of dibasic acid and polyhydric amine into a polyamine intermediate compound of daiamid. A certain amount of the polyamine intermediate compound of daiamid, epoxy chloropropane and an organosilane coupling agentare taken to react under certain temperature so as to achieve certain viscosity, and the reaction is halted by adding acid, thus obtaining the paper wet strengthening agent that is modified by organic silicon. The preparation method of the paper wet strengthening agent that is modified by organic silicon can reduce the usage of the epoxy chloropropane and lower the organic chlorine content in discharged substances; the cross-linked product greatly increases molecular weight and active crosslinking points of molecular chain sections. The product of the paper wet strengthening agent that is modified by organic silicon achieves greatly raised retention degree, can improve not only the wet strength of paper but also the paper physical performance such as folding resistance, tensile strength and dry strength, etc., and the superficial water-proof performance of paper can be greatly raised if the paper wet strengthening agent is coated on the surface of paper.

The invention belongs to the field of silencing materials, and particularly relates to a novel sound-absorbing felt. The sound-absorbing felt provided by the invention uses preoxidized polyacrylonitrile fiber as a sound-absorbing material for the first time, so as to obtain the novel sound-absorbing felt; not only the sound-absorbing felt has better acoustic performance than that of a glass wool product, but also the fiber is flexible and free of breakage, an environment pollution problem is avoided, and the sound-absorbing felt is friendly to the health of an operator; in addition, the sound-absorbing felt provided by the invention has good fire resistance and flame retardance, has an oxygen index of 50 or above, and is significantly better than other organic fibers. The preoxidized polyacrylonitrile fiber (shortened as preoxidized fiber) used by the sound-absorbing felt is an intermediate product in carbon fiber production. High-performance carbon fiber has an extremely high performance requirement on the preoxidized polyacrylonitrile fiber, a large amount of waste fiber is produced in the production process, and the waste fiber is used as a raw material for fiber sound-absorbingfelt production, so that the production cost is effectively reduced; a sound-absorbing layer produced from the preoxidized polyacrylonitrile fiber can play a very good sound-absorbing effect on a low-frequency sound source and meets a special noise-reducing need of a substation.

The invention discloses a strain of Pseudomonas and its application. The strain is preserved in the China Center for Type Culture Collection with a preservation date of July 24, 2020 and a preservation number of CCTCCNO:M2020346. The strain can prevent and control a variety of plant soil-borne diseases, especially the control effect on plant nematodes and soybean root rot, which has laid a foundation for the research and development of biological control of soil-borne diseases; the strain can also promote plant growth and contribute to It can promote the sustainable development of agriculture and has a good application prospect.

Belonging to the field of electronic industry environment-friendly cleaning agents, the invention provides an environment-friendly cleaning agent for electronic industry and a preparation method thereof, and in particular relates to a PCBA cleaning agent for wave soldering post-weld FLUX residue. The environment-friendly cleaning agent is composed of the following raw materials by mass percentage: 41.2%-42.9% of lower alcohol, 51.1%-56.8% of methylsiloxane, 1%-3% of propylene glycol ether, and 1%-3% of limonene. Compared with existing traditional cleaning agents for electronic industry, the electronic environment-friendly cleaning agent provided by the invention does not contain CFC / HCFC or HAP, is friendlier to workers' health in practical use, is safer and more environmentally friendly to the atmospheric environment, and helps enterprises meet EU ROSH, REACH and HF requirements and enhance international competitiveness.

The invention discloses a quick and intelligent defective optical lens detection device and method. The detection device comprises a camera, an image analysis unit and a liquid crystal display panel which are sequentially connected. The method includes the following detection steps that optical lenses to be detected are placed on the liquid crystal display panel and background light of the liquid crystal display panel enters a camera head of the camera through the optical lenses; acquired images are output to the image analysis unit through the camera and segmented through the image analysis unit, and therefore sub-images corresponding to all the lenses are acquired; the image analysis unit compares the sub-images with a standard image corresponding to a standard lens for identification, and identification results indicating whether the lenses are defective or not are acquired and reflected through colors in the regions, corresponding to the lenses, on the liquid crystal display panel. By the adoption of the device and method, batch detection can be achieved, detection efficiency is high, and the results are objective and accurate.