87results about How to "Improve temperature sensitivity" patented technology

The invention relates to composite modified bitumen and a preparation method thereof. The preparation method comprises the following steps: mixing 50 to 89.9 weight percent of bitumen, 10 to 49.9 weight percent of hard bitumen and 0.1 to 5 weight percent of polymer according to the proportion; and then shearing and stirring for 0.1 to 3 hours at a temperature between 80 and 240 DEG C so as to obtain the composite modified bitumen. The composite modified bitumen has the advantages of outstanding high-temperature and low-temperature performances, good temperature sensibility, wide use temperature range and PG grade reaching or exceeding PG 76-28; therefore, the bitumen can be widely used for road surface paving of roads, bridges, airfield runway, and the like.

The invention provides a modified asphalt composition and a preparation method thereof. The modified asphalt composition comprises, by weight, 87.5% to 98.9% of base asphalt, 1% to 10% of a modifier and 0.1% to 2.5% of a gelatinizing agent (a structure improver). The preparation method comprises the following steps: uniformly dispersing the modifier into the base asphalt at a temperature of 150 to 260 DEG C by using equipment like an ordinary agitator, a high speed shearing machine or a colloid mill to prepare the modified asphalt composition; and adding the gelatinizing agent to allow a sol-gel type colloid structure of asphalt to be converted into a gel type colloid structure and to allow a stable colloid structure of asphalt to be formed. According to the invention, the preparation method for the modified asphalt composition is simple; and the prepared modified asphalt composition has a high softening point, high viscosity, a high penetration index, excellent high and low temperature performance, excellent ageing resistance, small temperature sensitivity and the like, can reduce occurrence of damages like tracks and upheaval on a pavement and prolong a maintenance period of the pavement and is applicable to construction of high-grade highways.

The invention belongs to the technical field of lithium batteries, and particularly relates to a high-temperature-resistant coating modified separator as well as a preparation method and application thereof. The modified separator provided by the invention is formed by coating a single surface or double surfaces of a base membrane with a coating material, wherein the coating material comprises a temperature-sensitive high-temperature-resistant polymer, a binder and nano ceramic; the temperature-sensitive high-temperature-resistant polymer is obtained by a polymerization reaction of a bismaleimide monomer and an amine monomer with multiple reaction functional groups. The modified separator prepared by the invention has the advantages of high temperature sensitivity, strong electrolyte wettability, high safety, high temperature resistance and the like, and can greatly improve the use safety and prolong the service life of the lithium ion battery when being used for preparing the lithiumion battery.

The invention discloses modified asphalt and a preparation method thereof. The modified asphalt disclosed by the invention is prepared from the following raw material components in parts by weight: 100 parts of catalytic slurry oil, 60 to 100 parts of residual oil, 3 to 10 parts of a delay agent, 0.1 to 1 part of an oxidant and 3 to 10 parts of a chemical modifier, wherein the chemical modifier isa methanesulfonic acid solution of phosphorus pentoxide. According to the modified asphalt and the preparation method thereof, the catalytic slurry oil can be directly used as a production raw material of asphalt, and procedures such as atmosphere-vacuum distillation or solvent deasphalting and the like do not need to be carried out on the catalytic slurry oil; after the catalytic slurry oil is blended and modified, the modified asphalt for roads is manufactured; therefore, the production process is greatly simplified, and the production cost is reduced.

The invention discloses an asphalt mastic macadam mixture and a preparation method thereof and belongs to the field of road engineering materials. The asphalt mastic macadam mixture contains the following raw materials in parts by weight: 100 parts of aggregate, 5-7 parts of SBS (Styrene-Butadiene-Styrene) modified asphalt, 8-12 parts of mineral powder, 0.2-0.6 part of a fiber stabilizer, 2-7 parts of carbon black, 5-8 parts of phenolic resins and 2-3 parts of a curing agent. The asphalt mastic macadam mixture is capable of improving the strength and durability of the pavement, and can achievethe effects of enabling the pavement to achieve excellent cracking resistance and wear resistance and reducing risk of rut diseases on the asphalt pavement.

The invention discloses a modified regenerant and a preparation method and application thereof. The regenerant is prepared from vegetable pitch, a modifier, an emulgator and an anti-aging agent; the preparation method comprises the steps that the vegetable pitch is heated and stirred, the modifier is added, stirred and cooled, the emulgator and the anti-aging agent are added for continuous stirring, and the modified regenerant is obtained. The modified regenerant and the preparation method and application thereof have the advantages that the modified regenerant can effectively promote pavement performance of a thermal regeneration modified pitch mixture, aged SBS modified pitch is recovered, and the modified regenerant is economical, environmentally friendly and free of pollution; meanwhile, the preparation method is simple, and the production cost is greatly reduced; in addition, the prepared modified regenerant can be used for maintenance engineering of the surface layer of an expressway, and important significance in popularization of a thermal regeneration technology is achieved.

The invention provides an optic-fiber temperature sensor that is for detecting ambient temperature and based on bend loss, which is wound on the outer diameter of a glass bar as a multi-mode optic fiber of a sensitive element. One end of the multi-mode optic fiber is connected with a light source, another end is connected with a light power meter. When the ambient temperature changes, the refractivity of the multi-mode optic fiber and the cladding will change; after bending, the local value aperture of the multi-mode optic fiber changes, hence the bend loss of the multi-mode optic fiber is changed. The temperature sensor is resistant to electromagnetic disturbance, of high measuring sensibility, wide operation frequency band, simple structure, low cost and wide application field.

The invention discloses a contact type bimetallic strip temperature controller. The controller comprises a shell, a bottom plate and a bimetallic strip; the shell is arranged on the bottom plate and is fixedly connected with the bottom plate; a protruding part is arranged in the middle of the shell; the bimetallic strip is fixedly arranged at the top of the convex part; a vertical through hole isformed in the convex part; an ejector rod is inserted into the vertical through hole in a penetrating mode; a first terminal is arranged at one end of the bottom plate; an elastic piece is connected to one end of the first terminal; a first contact and a second contact are arranged on the elastic piece; a second terminal is arranged at the other end of the bottom plate; the second terminal and thefirst terminal are symmetrical; and a third contact is arranged at one end of the second terminal and matched with the second contact in an abutting mode. The controller is small in size and can be applied to small or micro electric appliances.

The invention belongs to the technical field of polymers, and relates to a temperature/pH dual response type triblock polymer as well as a preparation method and application thereof. The polymer consists of a water-soluble PEG (Polyethylene Glycol) block, a thermo-sensitive AAm block, an AAc block with pH (Potential of Hydrogen) response and a hydrophobic GMA (Glycidyl Methacrylate) block. The temperature/pH dual response type triblock polymer is prepared by the following steps: firstly, preparing carboxyl-containing trithioester, then carrying out esterification reaction on the carboxyl-containing trithioester and methoxypolyethylene glycol to prepare a polyethylene glycol macromolecular chain transfer agent, and preparing the temperature/pH dual response type block polymer PEG-b-PAAm-b-P (GMA-co-AAc) by adopting an RAFT (Reversible Addition-Fragmentation Chain Transfer) polymerization method. The invention aims to provide a dual-stimulus response type polymer which is obtained by integrating two different stimulus response units on one polymer molecular chain, can respond to two stimulus factors in the environment, and is more intelligent in performance.

A modified asphalt for building is prepared from basic asphalt with penetration of 60-150 1/10 mm and soft point of 30-70 deg.C and two or more polymers as modifier (10-25 wt%). The resultant asphalt features its improved high-and low-temp performance and themp sensing nature.

The inventon provides a preparation method for asphalt used in engineering with water, which comprises: with mild oxidation technique and base material with proper thickness and density and proper condition, discharging oxygen or oxygen-containing body (such as air) to fused base asphalt to prepare the product. This invention is simple. The produt has well cementation, aging-resistance and anti-seepage properties and can be used in hydraulic engineering.

The invention discloses a sealing compound for a zinc-manganese battery and a preparation method of the sealing compound, and belongs to the technical field of a battery sealing material. The sealing compound for the zinc-manganese battery is prepared from the following raw materials in part by weight: 20 to 30 parts of hydrogenation saturated polybutylene, 30 to 40 parts of modified epoxy resin, 40 to 50 parts of asphalt, 20 to 30 parts of 120 solvent gasoline, 10 to 20 parts of aromatic oil, 20 to 30 parts of nonylphenol polyoxyethylene ether, 10 to 20 parts of dimethicone, 1 to 5 parts of nano titanium dioxide, and 1 to 5 parts of nano sliced aluminum powder. The invention also provides a preparation method of the sealing compound for the zinc-manganese battery. The sealing compound for the zinc-manganese battery has good adhesion performance, sealing performance and creep resistance and also has anti-aging performance, high-temperature stability and temperature sensitivity; the sealing compound is not deformed and does not flow at a high temperature and is good in adhesion performance and indehiscent at a low temperature, easy to smear, free from peculiar smell and long in service life.

The invention discloses an asphalt road, and belongs to the field of roads. The asphalt road comprises a roadbed, a subgrade and a road surface. The subgrade is arranged in the roadbed and is provided with a horizontal layered structure. The subgrade is provided with a first mixed slag layer, a rubble layer, a second mixed slag layer and a concrete layer from bottom to top, and a geogrid and low-voltage shielded wires are arranged in the second mixed slag layer. A plurality of solar photovoltaic modules are arranged in the middle of the road surface in the road extension direction, and the solar photovoltaic modules are connected with a photovoltaic inverter through the low-voltage shielded wires. The asphalt road has the characteristics of being high in flatness, capable of avoiding the circumstances of insufficient partial compaction degrees, serious temperature segregation and the like, good in road surface temperature sensing property, good in elasticity and ageing-resistant performance, not prone to melting or flowing at high temperatures, good in toughness and not likely to be cracked at low temperatures, capable of meeting the using requirements of high-grade roads, and capable of fully utilizing high temperatures of the road surface to conduct solar power generation.

The invention discloses an electrical heat pan which comprises an outer pan, an inner pan, an upper cover which at least covers the inner pan, and a temperature detecting device which is arranged on the outer pan, wherein a temperature detecting component comprises a temperature detecting probe which is provided with a first position and a second position, a notch is formed in the upper edge of the inner pan, when the temperature detecting probe is located at the first position, the inner pan can be freely placed inside the outer pan; when the inner pan is placed inside the outer pan and the temperature detecting probe is located at the second position, the temperature detecting probe penetrates through the notch and enters the inner pan. Due to the fact that the temperature detecting component is not arranged on the upper cover but is arranged on the outer pan, the electrical heat pan is simple in structure, easy to assemble and low in cost, the temperature detecting probe of the electrical heat pan can extend into the inner pan, so that the temperature detecting effect is good.

The invention discloses a utilization method of a catalytic oil slurry. The method comprises the following steps: (1) adding a modifier to the catalytic oil slurry, and performing stirring to preparea modified catalytic oil slurry; and (2) mixing the obtained modified catalytic oil slurry with atmospheric pressure residual oil, and performing vacuum distillation to obtain vacuum residual oil, wherein total raw materials in step (1) comprise, by mass, 95.0-99.9% of the catalytic oil slurry and 0.1-5.0% of the modifier; and the modifier is one or more of a condensed aluminum phosphate curing agent and a silicon phosphate curing agent. The method can fully utilize the catalytic oil slurry, improve the problems of poor temperature sensitivity and poor anti-aging performance of the catalytic oil slurry and increase the flash point of the vacuum residual oil, and can be used to prepare road asphalt having excellent performances or a road asphalt production raw material.

The invention discloses a fire-proof and water-proof and temperature sensing cable and a manufacturing method thereof, and relates to a power cable. The cable from inside to outside successively comprises a conductor part, thermo sensitive insulation layers, a temperature sensing layer, a water absorption belt, a screen belt, a fire-proof layer and a fluoroplastic sheath. The conductor part includes a plurality of steel/copper cores. The external surface of each steel/copper core is provided with a thermo sensitive insulation layer by extrusion moulding, and the plurality of steel/copper cores are intertwisted together at a lay ratio of 16-24:1. The temperature sensing layer is connected to a signal processing apparatus which is connected to an alarming apparatus. According to the fire-proof and water-proof and temperature sensing cable of the invention, when the temperature quickly rises due to a short circuit or overheating, the steel/copper cores can fast damage the thermo sensitive insulation layers so as to enable the alarming apparatus to make a fast early warning response. The cable can swiftly provide alarming prompts to people and prevent fire caused by cables.

The invention discloses a refrigerator container component for a refrigerator and a refrigerator provided with the refrigerator container component. The refrigerator container component for the refrigerator comprises a refrigerator container, a temperature sensing seat and a sensor, wherein the temperature sensing seat is arranged on the refrigerator container in a penetrating manner; the sensor comprises a temperature sensing probe and a wiring harness, the wiring harness is connected with one end of the temperature sensing probe, and the temperature sensing probe is arranged on the temperature sensing seat and is positioned in the refrigerator container. According to the refrigerator container component for the refrigerator, a process of assembling a temperature sensing cover on the traditional temperature sensing seat is omitted, so that the temperature sensing probe can directly sense the temperature in the refrigerator container, and the temperature sensing effect is good.