70results about How to "Wide temperature adaptability" patented technology

The invention discloses an all solid-state ion selective electrode comprising an electrode cap and an electrode core, wherein a conductive polymer layer covers the lower part of the electrode core, a layer of ion selective membrane covers the surface of the conductive polymer layer, the conductive polymer layer contains a conductive polymer and a lipophilic additive, and the thickness of the ion selective membrane is 0.5-2mm. The invention also discloses a preparation method and an application of the all solid-state ion selective electrode. The all solid-state ion selective electrode disclosed by the invention can contain such additional polymers suitable for biological sensors as polyvinyl chloride, polyurethane or silicone rubber and lipophilic or hydrophilic additives. The conductive polymer can bring stable potential performance and wide temperature adaptability. Compared with the traditional ion selective electrode, the all solid-state ion selective electrode has the advantages of no internal filling liquid, long service life, stable electrode measurement, wide temperature adaptability, less external disturbance, easiness and convenience for use, non-maintenance, etc.

The invention relates to a cleaning agent for a solar panel. The cleaning agent comprises the following components by mass percent: 10 to 30 percent of surface active agent, 10 to 30 percent of solvent, 0.5 to 5 percent of electrostatic resisting agent, 10 to 30 percent of antifreezing agent, 2 to 5 percent of softening agent and 5 to 20 percent of oil removing agent. The solar panel is conventionally cleaned manually and rinsed mechanically at present, and the traditional way for cleaning the solar panel has the weaknesses such as high labor cost, large workload, high risk, complexity in operation, halfway cleaning, short washing period and the like. The cleaning agent for the solar panel is strong in decontamination capacity, anti-electrostatic, wide in environmental applicability, good in stability, low-foam, nondestructive for the glass surface, free from peculiar smell, toxic-free, corrosiveless, inflammable, unexplosive and free from polluting the environment.

The invention discloses pantoea sp. PYR16 for degrading polycyclic aromatic hydrocarbon organic pollutants, and belongs to the field of microbial and environmental organic pollutant repair and control. The strain is preserved in China Center for Type Culture Collection, with preservation number of CCTCC NO: M2016227. The strain disclosed by the invention can be used for effectively degrading various polycyclic aromatic hydrocarbons; the strain is broad in environment-adaptive and heavy-metal resistant capacities; and the strain, when implanted in severe environments, can be used for repairing soil or water bodies which are affected by the combined pollution of heavy metals and polycyclic aromatic hydrocarbons.

The invention provides a permeable rubber asphalt waterproof coating and a preparation method thereof. The waterproof coating is composed of the following components in parts by mass: 10-30 parts of chloroprene rubber, 50-70 parts of anionic emulsified asphalt, 20-30 parts of styrene-acrylic emulsion, 10-20 parts of a modification additive, 3-10 parts of a thickening agent, 5-20 parts of terpene tackifying resin and 1-5 parts of cement-based permeable crystallization masterbatches. The preparation method comprises the steps of adding the chloroprene rubber into anionic emulsified asphalt emulsion at normal temperature, conducting full stirring for 20-40 minutes, and then adding the modification additive while stirring for 15-30 minutes; then adding the styrene-acrylic emulsion, conductingfull stirring for 20-30 minutes, and then adding the thickening agent while stirring for 20-30 minutes; adding the cement-based permeable crystallization masterbatches while stirring for 15-25 minutes; and finally adding the terpene tackifying resin and the thickening agent and conducting full stirring for 20-30 minutes. The coating has excellent waterproof property, high elongation rate, high bonding strength, good film forming property, strong self-repairing capability and puncture resistance.

The invention discloses a compound crosslinking agent, a preparation method of the compound crosslinking agent and a preparation method of a profile control agent and belongs to the technical field of oilfield chemistry. The compound crosslinking agent is prepared from, in percentage by weight, 98%-99% of a phenolic prepolymer and 1%-2% of organic chromium. During usage, the components are evenly mixed. By use of the crosslinked polymer gel profile control agent prepared from the compound crosslinking agent, the gel forming temperature is 50-120 DEG C, the gel forming time can be continuously controlled from several hours to several days, a formed gel system is stable, the gel viscosity can reach 11,500 Pa*s or higher, the profile control agent can be applied to oilfield water shut-off and profile control and improve heterogeneity of reservoirs, so that the oilfield mining efficiency is improved, and the technical problems that phenolic crosslinking agents are high in gel forming temperature and time-consuming and high-valence metal ion crosslinking agents are poor in temperature resistance in the prior art are solved.

The invention discloses a Bacillus natto activation solution and a preparation method and application of the activation solution. The method for preparing the Bacillus natto activation solution comprises the following steps: adding 0.5-1.2 parts of Bacillus natto dry powder into 1,000 parts of purified water by mass (the same below), adding 0.005-0.01 parts of avian egg white and 0.015-0.025 parts of bee honey, and aerating for 3-4 hours at a gas-water ratio of 1:1. According to the invention, the Bacillus natto activation solution obtained has high activity, wide thermal adaptability, aerobic-anaerobic facultative ability and high survival rate. The preparation method has a simple technical process, a short startup time of a wastewater treatment system and simple and convenient operation. In the invention, equipment and facilities are arranged compactly, which reduce the occupied floor area and the construction cost. The amount of aeration is decreased by 40%, wastewater is raised for the whole process at one time, and equipment has low power consumption and is energy-effective. The invention improves the treatment function and the effluent water quality, which makes the content of pollutants in the effluent water lower than standard of GB18918-2002.

The invention discloses a method for preparing an ultrahigh molecular weight polyethylene thick-wall tube, which comprises the following steps: mixing ultrahigh molecular weight polyethylene and special assistant powder through a stirrer and then evenly feeding the mixture to a single-screw extruder of which the helix angle is 42 to 45 degrees, directly and quickly pressing the powder to a material with certain thickness, melting and plasticizing the material under the melt pressure of less than 10MPa and corresponding temperature parameters, directly extruding the material output of a tube, then forming a tube shape through special dies in turn, forming a tube material through a cooling system, and finally cutting the tube material with fixed length by a cutter.

A lithium ion battery module for an electric forklift truck, and a power supply box, which belong to the technical field of lithium ion batteries. The battery module comprises a housing and a batterypack in the housing; the battery pack comprises cells (11), an inter-cell heat insulation sheet (12), and a bottom surface insulating plate (13), a side surface insulating plate (15) and an end surface insulating plate (14) which are at the periphery of the cells (11), and a bus bar support (7) at the top; the cells (11) are square lithium iron phosphate batteries, and are grouped in a mode with each parallel branch having eight cells which are connected in series, a protruding spacer (18) is provided on the surface of the side surface insulating plate (15) and the surface of the bottom surface insulating plate (13), and the bus bar support (7) is provided with an inter-cell (11) connection bar (4) and an end connection bar (6). The power supply box comprises a box body (34), the box body(34) is internally provided with a high-voltage box (35), a BMS and the described lithium ion battery module for an electric forklift truck, a box cover (39) is provided on the box body (34), and an exhaust valve (50) is provided on the box cover (39). The lithium ion battery module and the power supply box both have high reliability in terms of structure and thermal performance.

The invention discloses a phosphorus-accumulating bacterium strain with higher phosphorus removal effect at low temperature, which is characterized in that the collection number of the phosphorus-accumulating bacterium is CCTCC NO:M2014140. The phosphorus-accumulating bacterium strain is screened from Chaohu Lake sediment by low-temperature enrichment culture and a dilution mixed plate method, and can efficiently remove phosphorus at low temperature; the strain can still effectively absorb the carbon source in wastewater at 8 DEG C and convert the carbon source into poly-beta-polyhydroxyalkanoats, and meanwhile, release polyphosphates stored in the cells so as to obtain energy; the poly-beta-polyhydroxyalkanoats in the cells are oxidized in the aerobic process to generate energy, and the strain absorbs abundant phosphorus from the wastewater to as to accumulate the phosphorus in the form of polyphosphates. The strain has wide temperature adaptability, has favorable phosphorus-accumulating effect at 8-30 DEG C, and can be used for wastewater treatment in winter or under cold conditions.

The invention discloses a carrier roller bearing assembly and a carrier roller with the bearing assembly. The carrier roller bearing assembly comprises a bearing base, a bearing and a sealing assembly, wherein the bearing is installed on the bearing base. The sealing assembly comprises a bottom sealing ring, a shaft sleeve, a shaft sleeve sealing ring and a sealing outer cover, the bottom sealing ring is arranged on one side of the bearing in the axial direction of the carrier roller, the shaft sleeve, the shaft sleeve sealing ring and the sealing outer cover are arranged on the other side of the bearing in the axial direction of the carrier roller, and the shaft sleeve, the shaft sleeve sealing ring and the sealing outer cover are coaxially arranged. The bearing assembly has good sealing performance, and when used, the carrier roller with the bearing assembly is low in noise and good in sealing performance and has good mechanical strength.

The invention discloses a novel fusion protein. A peptide segment (preferably a protein transduction domain (PTD)) is introduced, so as to improve the cell killing activity of an immunotoxin human leuterinizing hormone releasing hormone-Pseudomonas aeruginosa exotoxin A derivative (GnRH-PE39KDEL), and the peptide segment is positioned on the C-terminal of the human leuteinizing hormone releasing hormone (GnRH) and the N-terminal of the Pseudomonas aeruginosa exotoxin A derivative (PE39KDEL) to form the novel fusion protein together with the GnRH and PE39KDEL. The invention also relates to a nucleotide sequence for coding the fusion protein, an expression vector containing the nucleotide sequence, a host cell containing the expression vector and an application of the novel fusion protein used as an immunotoxin in an anti-cancer medicine.

The invention discloses a method for preparing environment-friendly lubricating oil, and relates to the technical field of lubricating oil preparation. The method includes the following steps: S1, following raw materials in parts by weight: 75-80 parts of base oil, 10-15 parts of acomplexing agent, 5 parts of a viscous agent, 1 part of a pour-point depressant, 1 part of an anti-foaming agent, 1 part of a thickening agent, 1 part of ultra-fine metal powder, and 1 part of nano calcium carbonate particles are taken; S2, the base oil and the complexing agent are mixed and stirred through an ultrasonic agitation apparatus, then mixed matter is heated to 65 DEG C to be continuously stirred until the kinematic viscosity and pour point reach the standard, and subjected to overall thermal insulation to 60-62 DEG C, and S3, the pour-point depressant and the viscous agent are successively added into the mixture, and the nano calcium carbonate particles are added to be stirred mechanically for 15min until the mixture is fused. High wear-resisting performance is achieved, damage is not prone to being caused due to extrusion after the environment-friendly lubricating oil is used for a long time, the overall use time is long, meanwhile, degradation is easy, the environment-friendly effect can be achieved, and environmental pollution is not prone to being produced.

The invention creatively provides a method for preparing a residue-free high-viscosity protection membrane tackifying master batch. The master batch is prepared from the following raw materials in percentage by weight: 10-30% of low-molecular-weight polyisobutylene of which the molecular weight is 600-5000, 10-40% of high-molecular-weight polyisobutylene of which the molecular weight is 40000-800000, 10-30% of a thermoplastic elastomer and 0.1-3% of an antioxidant, wherein the total weight percentage of the low-molecular-weight polyisobutylene and the high-molecular-weight polyisobutylene is 50-70%. The viscous master batch is applied to a high-viscosity protection membrane, and is stable in viscosity, wide in temperature applicability and free of residue.