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182results about How to "Good environmental performance" patented technology

Preparation method and construction process of waterborne marble-imitated multicolor paint

The invention discloses a preparation method and the construction process of a waterborne marble-imitated multicolor paint, in particular to a compounding technology and the construction process of the water-in-water type multicolor external wall paint. The paint consists of a disperse phase and a disperse medium, wherein the waterborne multicolor dispersoid containing water-soluble colloid is taken as the disperse phase and the water is taken as the disperse medium, namely the multicolor dispersoid is uniformly dispersed in the water-dispersed medium containing the film-forming substance. The wall paint has excellent wall decoration and protection performance and high performance-to-price ratio; and as the coating is thin and light and has elasticity and stain resistance, the paint can be applicable to the high-rise external walls and the external heat-preservation coating decoration, thus solving the problem that the self-weight is large in the practical application process of the marbles, the wall bricks and the glass curtain walls. In the invention, the wall paint solves the construction localization that the special spraying gun is only used for the waterborne multicolor paint, the normal spraying gun for building can be used, therefore, the construction is convenient and is easy for operation, and the wall paint has wider application prospect.
Owner:鳄鱼尼卡(上海)新材料有限公司

Method for producing temperature-resisting, anti-seismic and antibacterial compound polyethylene water supply pipe

The invention relates to a method for producing a temperature-resisting, anti-seismic and antibacterial compound polyethylene water supply pipe, which can be used for solving the problems of the prior art that the pipe shaping process is difficult, the service life is short, the anti-seismic property is poor, the pipe is easily damaged and the antibacterial property is inferior. The method comprises the following steps: respectively extruding and heating a polyolefin PE (polyethylene) outer layer and a polyolefin PERT (polyethylene raised temperature) inner layer, and then extruding a two-layer or multi-layer coextruded compound pipe from a same extruding port, wherein the compound pipe has tightly combined adjacent layers and at least contains the polyolefin PE outer layer and the polyolefin PERT inner layer; heating the polyolefin PE outer layer and the polyolefin PERT inner layer in sections in the cylinder area and a mold head area of an extruder; shaping the combined compound pipe in vacuum; placing the compound pipe in a water tank for cooling; printing the pipe; dragging the pipe; and cutting the pipe according to the fixed size. The compound polyethylene water supply pipe provided by the using the method has non toxic or side effect, is temperature-resisting and antibacterial, is strong in acclimation, has high cost performance, is simply processed, is conveniently, safely and reliably used, has strong strength and excellent toughness, is strong in anti-seismic property, is difficult to age, break and soak, and has low comprehensive cost.
Owner:康泰塑胶科技集团(郑州)有限公司

Particle material for producing beer and beverage crown cap polyolefin gasket and preparation method thereof

The invention relates to a particle material for producing a beer and beverage crown cap polyolefin gasket and a preparation method thereof. The material of the crown cap gasket for beer and beverage is mostly prepared from a polrvinyl chloride; and because the material of the crown cap gasket for beer and beverage contains a plasticizer, a stabilizer, vinyl chloride monomer residue in polrvinyl chloride and the like, the edible safety problem exists. The particle material is prepared by the following steps: mixing the following raw materials in parts by weight: 58.1-72.5 parts of low densitypolyethylene, 18.2-39.4 parts of thermoplastic elastomer, 2.5-8.5 parts of antioxidant master batch and 0-0.8 part of coloring master batch; and then extruding, granulating, water cooling, screening and drying; and finally cooling to form the particle material finished product. According to the invention, a safe material is adopted to replace an limited material, thus edible safety is ensured, and the particle material also has the advantage of good environmentally-friendly property and is beneficial to human body health, and food package amount is greatly reduced.
Owner:XIAN CHANGTAI PACKAGE MATERIALS

High-performance carbon nanotube/carbon composite fiber and rapid preparation method thereof

ActiveCN111101371AIncrease the force between the tubesHigh strengthCarbon fibresCarbon compositesCarbon nanotube
The invention discloses a high-performance carbon nanotube / carbon composite fiber and a rapid preparation method thereof. The preparation method comprises the following steps of during the carbon nanotube fiber spinning process and / or after the spinning is completed, fully infiltrating a precursor solution of a polymer with a high residual carbon rate and twisting the carbon nanotube fiber, and then removing a solvent on the surface of the carbon nanotube fiber; and applying a drafting force to the obtained carbon nanotube composite fiber, introducing current into the carbon nanotube compositefiber, so that a precursor of the polymer with the high residual carbon rate in the carbon nanotube composite fiber is crosslinked and cured, and then the formed polymer is carbonized to obtain the high-performance carbon nanotube / carbon composite fiber. The preparation method of the invention is fast and efficient, and the carbon nanotube / carbon composite fiber with high orientation and a compact structure can be prepared in only 10 seconds, which not only can greatly improve the mechanical property and the electrical property of the carbon nanotube fiber, but also enable the carbon nanotubefiber to have excellent resistance to extreme environment.
Owner:SUZHOU INST OF NANO TECH & NANO BIONICS CHINESE ACEDEMY OF SCI

Special PVDC (Polyvinyl Dichloride) latex for lining paper and preparation method of special PVDC latex

The invention relates to special PVDC (Polyvinyl Dichloride) latex for lining paper. The PVDC latex comprises the following raw materials: a mixed monomer, auxiliaries, an initiator, an emulsifying agent, a seed emulsifying agent and deionized water, wherein the auxiliaries include ammonium acetate, ferrous chloride and nano inorganic silicon. The inorganic silicon in the nano inorganic silicon is one or more of silicon dioxide, silicon disulfide, sodium silicate, potassium metasilicate, aluminum silicate, calcium silicate, silicic acid and silicon carbide. The invention also provides a preparation method of the special silicon disulfide for lining paper. The auxiliary, namely the nano inorganic silicon is added into the PVDC latex, so that the stiffness of a paper sheet is increased effectively; in addition, the mixed monomer containing vinylidene chloride, methacrylamide, acrylic ester and acrylic acid as well as the initiator, the emulsifying agent, the seed emulsifying agent and the auxiliaries are adopted, so that the PVDC latex is prepared; and the prepared PVDC latex has good stability and has the characteristics of environmental friendliness, good air and oxygen resistance and particularly high stiffness when used for packaging cigarettes after being coated on the lining paper.
Owner:HAINAN SHINER IND

Closed-loop steel sintered red ore cooling device and process method thereof

The invention discloses a closed-loop steel sintered red ore cooling device. The device comprises a device body, a heat exchange cavity arranged in the device body, a feeding inlet formed in the upper end of the device body, a uniform distributor arranged at the lower end of the feeding inlet, a discharging outlet formed in the lower end of the body, a uniform temperature device and at least one fire grate. The uniform temperature device is arranged on the device body and communicates with a cold air outlet. The at least one fire grate is movably installed in the heat exchange cavity. Each fire grate and the heat exchange cavity form an obliquely-downward angle, and the fire grates are parallel to each other. A pushing device is arranged at the front end of each fire grate. A hopper is arranged at the tail end of each fire grate. The device replaces a cooling section of an original sintering machine or a ring cooling machine. Compared with an original cooling mode, the device is high in yield, good in quality and low in energy consumption. Compared with the original cooling mode, the yield of a marching type sintering machine can be increased by 30%-40%, zone firing is increased by 5%-10%, and energy consumption only accounts for about 50% of the original cooling mode.
Owner:BEIJING RUIDA HONGXIN TECH CO LTD

Environment-friendly imitation ceramic tableware material and preparing method thereof

An environment-friendly imitation ceramic tableware material is prepared from polylactic acid, calcium phosphate biological ceramic, hemp cellulose and a processing and modifying assistant. The preparing method comprises the following steps of: drying polylactic acid, calcium phosphate biological ceramic and hemp cellulose respectively; premixing the polylactic acid, calcium phosphate biological ceramic powder, hemp cellulose and the processing and modifying assistant; and feeding the premixed material into a granulating machine for plasticizing and mixing, and carrying out extrusion and granulation to obtain the environment-friendly imitation ceramic tableware material. The environment-friendly imitation ceramic tableware material provided by the invention has the advantages that tripolycyanamide and formaldehyde are not contained, and the problems that the conventional imitation ceramic tableware has residual tripolycyanamide and formaldehyde monomer and the tableware releases toxicity when being heated in a microwave oven can be solved, so that the tableware is safe and reliable, and can be degraded or utilized by thermoplastic processing after being discarded; the calcium phosphate biological ceramic powder and the hemp cellulose are added to the material, so that the strength, toughness and heat-resistant quality of the polylastic acid material are improved. The environment-friendly imitation ceramic tableware material can replace the conventional tripolycyanamide imitation ceramic tableware material, is convenient in raw material source and simple to process, can be produced by the conventional plastic equipment, and is easy for industrial production and application of imitation ceramic tableware.
Owner:KUNMING UNIV
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