48results about How to "Strong elongation" patented technology

The invention discloses a self-adhesive fabric internally reinforced thermoplastic polyolefin composite waterproof roll, which at least comprises a fabric internally reinforced thermoplastic polyolefin layer, a functional transition layer and a self-adhesive layer, wherein the fabric internally reinforced thermoplastic polyolefin layer is formed by combining two thermoplastic polyolefin layers with one fabric reinforcing layer. The thermoplastic polyolefin layer mainly comprises first ingredient thermoplastic polyolefin, second ingredient thermoplastic polyolefin, a filler, a coupling agent, a light screener, an antioxidant and a light stabilizer. In the invention, the advantages of environmental friendliness, simple processing, low-temperature performance, capability of welding, whether resistance and the like of the TPO roll are combined with the advantages of convenient construction, high substrate bond strength, adhering completeness, reliable lapped side welding, no 'water movement between layers' and the like of self-adhered membranes. The waterproof roll has the advantages of high strength, high elongation, high low-temperature performance, high whether resistance, high sunlight reflectivity, high roll smoothness, strong bonding force of the self-adhesive, convenient construction and the like and thus is an advanced waterproof roll.

The invention provides a method for improving the physical and mechanical properties of oxidation-degummed ramie. The method comprises the following steps of: preparing a degumming solution by using caustic soda, an oxidant, a surfactant, a fiber expanding agent, an oxidant stabilizer and water; mixing raw ramie and the degumming solution, heating, and boiling off to sufficiently remove colloid; and then cooling, adding a reduction softener, maintaining the temperature, oiling and drying after washing with clear water, and opening and carding to obtain textile ramie fiber subjected to reduction modification. According to the method disclosed by the invention, the defects of the prior art are overcome; and the reduction softener is added to raffinate obtained after oxidation-degumming, oxycellulose produced in the degumming process is reduced and softened, so that the physical and mechanical properties, such as strength, length, elongation and softness of the fiber are improved, the working procedures are simplified, and pollution and environmental pressure are lightened.

An electronic device comprising a substrate, a cover delimiting at least a part of a main surface of the substrate to thereby form a cover-substrate arrangement enclosing a hollow space and having a through hole, an electroacoustic transducer configured for converting between an electric signal and an acoustic signal and being mounted on the substrate acoustically coupled with the hollow space in such a way that the hollow space constitutes a back volume of the electroacoustic transducer, wherein the electroacoustic transducer provides an acoustical coupling between the hollow space and an exterior of the cover-substrate arrangement via the through hole, an electronic chip mounted within the cover-substrate arrangement and electrically coupled with the electroacoustic transducer for communicating electric signals between the electronic chip and the electroacoustic transducer, and at least one electronic member mounted on the substrate within the cover-substrate arrangement and configured for providing an electronic function.

The invention discloses a shield tunnel segment structure and its connection structure, comprising a segment body, characterized in that: the segment body is mainly composed of a steel plate layer, a concrete layer wrapping the steel plate layer, respectively located on both sides of the steel plate layer and It is composed of steel mesh embedded in the concrete layer; the side edge of the segment body is fixed with metal joints, and the outer side of the metal joints is provided with a groove for accommodating a waterstop. Waterstop: the outer side of the segment body is provided with an outer protective layer, and the outer protective layer is a polyurea layer compounded on the outer side of the segment body. The connecting structure is composed of two shield tunnel segment structures arranged adjacently and a connector connecting the two shield tunnel segment structures, and the connecting steel plate is composed of an arc section in the middle and straight sections on both sides. The invention has the characteristics of small thickness, high strength, and the joint is not easy to be damaged, and has good joint deformation control effect, good seam waterproof effect, high durability and convenient repair.

The invention discloses environment-friendly stone paper and a preparation method thereof. The environment-friendly stone paper is prepared by the following components by weight: 60-70% of waste plastic, 22-30% of waste paper, 1-2% of a coupling agent, 0.5-1% of compatilizer, 0.5-1% of dispersant, 0.5-1% of internal lubricant, 0.5-1% of external lubricant, 1-2% of fire retardant and 2-3% of an ultramicro foaming agent, and the preparation method comprises the steps of removing impurities, drying, mixing thermally, mixing in a cold manner, granulating, and molding. The stone paper provided by the invention is good in physical and mechanical performances, and uses waste plastic and waste paper as main raw materials, thereby saving resources and energy, and reducing emission, and a new road for development of the stone paper is also provided.

The invention provides a technical scheme of an explosion-proof cover for combined electric appliance cable outgoing lines. According to the technical scheme, the explosion-proof cover comprises a cover body, a fixing buckle is arranged at the combining position of the cover body, the cover body is cylindrical, an observation opening is formed in the cover body and is provided with explosion-proof glass, and a travel switch is arranged between the explosion-proof glass and the cover body and is connected with a warning device. The explosion-proof cover can reduce destructive power of cable outgoing line explosion, accordingly protect the personable safety of a worker and avoid damage of adjacent devices and does not affect normal inspection tour and operation execution.

A kind of preparation method of sausage casing, specifically prepare lotus root insoluble dietary fiber first, disperse in purified water with gluten powder, form dispersion liquid A, adopt human source collagen protein and soybean protein to mix, add glycerin to form mixed liquid B, the dispersion liquid Add A into the mixed liquid B, stir and mix, add sodium hydroxymethyl cellulose and food grade sodium bicarbonate, stir step by step at high speed and low speed in turn, introduce oxygen during low speed stirring, add crosslinking agent and continue stirring, and then prepare into casings. The sausage casing prepared by the invention has high structural stability, excellent mechanical and mechanical properties, strong elongation and flexibility, so that the casing does not break during enema; there are a large number of uniformly distributed pores in the casing, which makes the sausage produced by pickling after enema The moisture evaporates quickly and the drying time is shortened; the viscosity between the sausage meat and the casing is high, which can effectively prevent the meat from separating from the casing during drying and subsequent cooking.

The invention discloses a high-insulation high-temperature cable and a manufacturing method thereof. The high-insulation high-temperature cable includes a surface sheath, a hollow layer, a support layer, an inner liner, an insulation layer, and a conductor, and can withstand -70°C to 200°C for a long time. ℃ working temperature, at least 5000kV / s lightning resistance peak value, yield strength not less than 80N / mm2, elongation not less than 25%, tensile strength not less than 100N / mm2; The fiber is woven into a network tube as the support layer, the design of the hollow layer is added, and the high temperature and anti-aging material is selected as the base material to obtain excellent high temperature resistance and insulation performance; the high insulation high temperature cable of the present invention has good comprehensive mechanical properties and strong insulation , high temperature resistance, anti-aging, long service life and wide range of use.