93 results about "Silver zeolite" patented technology

An improved method for manufacturing powder coatings for applications where uniform dispersion of one or more additives is critical to the function of the final coating. The method comprises ultrasonic post-blending of powder coating of one or more additives into a base powder coating material prepared by ordinary means. In one example, an antimicrobial powder coating containing a silver zeolite additive is prepared using the ultrasonic post-blending method. The resulting powder exhibits superior antimicrobial efficacy compared to an analogue powder manufactured using identical constituent ingredients, but according to conventional premix / extrusion methods. Powder manufactured using ultrasonic post-blending allows a wide range of stock powder coatings to be modified to exhibit new properties at improved cost and efficiency than conventional preparation methods. The method is suitable for powder coating formulations requiring incorporation of a small percentage of additives, especially additives with relatively small particle sizes such as nano- and sub-micron additives.

The invention provides a built-in containment vessel filtering discharging system. The built-in containment vessel filtering discharging system comprises a built-in water pool, a jet pipe, a steam separator, a metal fiber filter, a silver zeolite filter, and corresponding pipeline valves. The built-in containment vessel filtering discharging system is capable of realizing effective utilization ofthe water pool space in a containment vessel, is simple, and is more compact in designed form; a complex external arrangement system is canceled; and a better option is provided for small size nuclearpower devices such as ocean floating platforms. The built-in water pool is combined with the longitudinal jet pipe, so that effective utilization of water seal principles is realized, the change of the number of adopted pores at different flow amount conditions is ensured, the state of the flow speed in a jet nozzle is maintained to be optimal, and relatively aerosol and iodine removing efficiency is maintained always. In the built-in containment vessel filtering discharging system, a current limiting orifice plate is arranged at the tail end of the built-in containment vessel filtering discharging system, operation of the built-in containment vessel filtering discharging system is carried out under high pressure, equipment size is reduced, silver zeolite loading amount is reduce, equipment miniaturization is realized, so that it is beneficial for reducing of equipment cost and improving of the economical performance.

The invention discloses an antibacterial and mould-proof shoe material and a preparation method of a shoe sole. The shoe material is prepared from the following components in parts by weight: 23-27 parts of EVA, 17-21 parts of POE, 6-9 parts of OBC, 4-6 parts of EDPM, 4-6 parts of a filler, 0.3-0.6 part of a vulcanizing agent, 1.2-2 parts of a foaming agent, 0.8-1.2 parts of a foaming assistant, 0.4-0.6 part of a lubricant, 0.2-0.4 part of zinc stearate, and 0.4-0.5 part of a nano antibacterial agent. The preparation process of the nano antibacterial agent is as follows: in parts by weight, 5-7 parts of silver-loaded zeolite are added into 18-20 parts of an absolute ethyl alcohol and water mixed solution with the volume ratio of absolute ethyl alcohol to water being (6 to 8):1, then 1.2-1.5 parts of isobutyltriethoxysilane are added, then heating is conducted to 70-75 DEG C, continuous stirring is conducted for 20-25 min, finally, filtering, drying and grinding are conducted, and the nano antibacterial agent is obtained. The antibacterial and mould-proof shoe material and the preparation method of the shoe sole have the beneficial effects that the silver-loaded zeolite is subjectedto surface modification through the isobutyltriethoxysilane, the surface energy of the shoe material is lowered, agglomeration is not prone to occurring, using demands of the shoe material are met, and after the surface of shoe material is grafted with organosilicon groups, water resistance is improved appropriately.

The invention discloses a method for preparing a feed antibacterial agent by absorbing and grafting potassium diformate on an epidesmine molecular screen. Regarding the defects that heavy metals in a silver zeolite antibacterial agent easily deposit in a body and cannot be applied to a feed, and the acidating agent potassium diformate cannot plays roles in intestinal tracts, the method takes the modified epidesmine as a carrier to adsorb the acidating agent potassium diformate so as to prepare the feed epidesmine antibacterial agent. Acidity detection and in vitro antibacterial tests indicatethat: the feed epidesmine antibacterial agent has sustained release performance, has an excellent bacteriostasis effect to escherichia coli, and can prevent and treat diarrhea caused by the escherichia coli.

The invention provides a preparation method of a nano-silver antibacterial plastic. The preparation method comprises following steps: firstly, ion substitution is adopted to load a microporous material nano zeolite carrier with antibacterial silver ions or other metallic oxides so as to obtain a nano silver zeolite composite antibacterial material; the nano silver zeolite composite antibacterial material is subjected to surface modification with a surfactant; the modified nano silver zeolite composite antibacterial material is mixed with a powdery polypropylene matrix at a mass ratio of 1:5, an accessory ingredient and a dispersing agent are added, and vibrating milling is adopted for dispersion treatment so as to obtain a nano silver zeolite composite antibacterial plastic masterbatch; and at last the nano silver zeolite composite antibacterial plastic masterbatch is uniformly mixed with polypropylene plastic at a mass ratio of 1:10, and an obtained mixture is delivered into an injection molding machine for injection molding so as to obtain the nano-silver antibacterial plastic. The nano-silver antibacterial plastic possesses broad spectrum, high efficiency, and long lasting antibacterial performance, and excellent slow release performance.

The invention relates to a fiber for medical fabrics and a preparation method of the fiber. The preparation method comprises the step that cationic polyester FDY yarn is prepared from cationic polyester according to the FDY technology to obtain the fiber for the medical fabrics, wherein nano-silver zeolite powder and SiO2-Al2O3 powder and / or SiO2-MgO powder which is / are sintered at the high temperature of 400-700 DEG C are dispersed in the cationic polyester, and molecular chain of the cationic polyester comprises a terephthalic acid chain segment, an ethylene glycol chain segment and a m-benzenedisulfonic acid disodium salt chain segment. After the prepared fiber for the medical fabrics is placed for 60 months under the condition that the temperature is 25 DEG C and the relative humidityis 65%, the characteristic viscosity of the fiber is reduced by 10-15%. The preparation method is simple in process and low in cost; the prepared product is high in natural degradation rate and good in application prospect.

The invention provides a polyolefin resin foam particle, a manufacturing method thereof and a polyolefin resin foam forming body. The polyolefin resin foam particle comprises polyolefin resin and silver zeolite serving as an additive. Foam performance of the polyolefin resin foam particle is good, and the light polyolefin resin foam particle with good foam effect can be acquired even if additivessuch as polyethylene glycol and glycerin cannot be used. When the silver zeolite serves as the additive for manufacturing the polyolefin resin foam particle, wastewater treatment can be decreased or omitted, environmental loads in manufacturing are decreased, and in-mold forming performance of the acquired foam particle is good.

The invention relates to a multilayer, antimicrobially modified, biaxially oriented polyester film that includes at least one base layer (B) and an outer layer (A) that has been applied to the base layer and that has also been antimicrobially modified, wherein the antimicrobially modified outer layer (A) comprises a silver-loaded zeolite, has a layer thickness <8 μm, and the layer thickness is not greater than 1.3 times the median particle size of the zeolite. The invention further relates to a process for the production of the film, and to the use of the film.