7 results about "Moisture resistance" patented technology

The invention discloses instant pawpaw-red date chest enlargement tea and a preparation method thereof. The instant pawpaw-red date chest enlargement tea is characterized by comprising the following raw materials in parts by weight: 400-420 parts of tea leaves, 15-16 parts of pawpaw, 10-15 parts of hawthorn fruits, 15-20 parts of red dates, 10-11 parts of dandelion, 15-16 parts of longan pulp, 10-12 parts of rhizoma polygonati, 10-11 parts of semen juglandis, 9-11 parts of root of kudzu vine, 10-11 parts of safflower carthamus, 8-10 parts of seeds of cowherb, 30-40 parts of activated carbon, 45-46 parts of colza oil, and 0.1-0.2 part of hydroxypropyl methyl cellulose. According to the invention, caffeine in tea water can be removed after the tea water is filtered by the activated carbon, and a layer of film is formed on the surface of the activated carbon after the activated carbon is treated and can be used for blocking flavor substances, excepted for the caffeine, in the tea water from being adsorbed by the activated carbon; tea particles provided by the invention are subjected to film coating by the hydroxypropyl methyl cellulose, so that the instant pawpaw-red date chest enlargement tea has good moisture resistance, and moisture absorption for blocking in the storing process is avoided; in addition, multiple Chinese herbal medicinal ingredients are added, so that the chest enlargement effect is realized.

A portable reinforced utility pole, comprising a metal tube located in the center, the inside of the metal tube is coated with anti-rust paint, and several steel bar structures parallel to it are evenly distributed on the outside of the metal tube, and the outside of the steel bar structure is Binding steel wires are wound, and the metal pipe, the steel structure and the binding steel wire are connected by welding, and the outer part of the metal pipe is wrapped with a resin layer, and the resin layer completely wraps the steel structure and the binding steel wire, and the resin The outside of the layer is sequentially wrapped with an aramid yarn braiding layer, an anti-corrosion layer made of polymer materials, and a low-smoke, halogen-free, flame-retardant polyolefin outer sheath layer. The invention overcomes the deficiencies of the prior art and solves the problem of poor mechanical properties of the existing composite utility poles. Compared with the pole, it is relatively light, which greatly reduces the difficulty of construction and transportation.

The invention discloses a compound filter material high efficiency particulate air filter. The compound filter material high efficiency particulate air filter comprises a filter framework and a filtering main body component, wherein the filtering main body component comprises a PP-PET (Polypropylene-Polyethylene Terephthalate) compound filter material, a metal filter screen and a plurality of hot melting glue threads. The initial resistance of the PP-PET compound filter material under a normal temperature condition is 38 Pa, so that the initial resistance of the filter is relatively small, the resistance on air current passing through the filter is reduced, purified air current passing is facilitated, and damage or wear of the filter in a filtering process caused by large resistance is reduced, thereby enhancing the filtering performance, temperature resistance and moisture resistance of the filter and prolonging the service life of the whole filter. PET layers are arranged on both sides of a PP layer respectively, and play a role as a PP-PET compound filter material bracket, so that the whole PP-PET compound filter material keeps certain hardness and is not easy to deform, thereby enhancing the filtering strength of the whole filter. The compound filter material high efficiency particulate air filter further has the effects of enhancing the temperature resistance and the moisture resistance of the filter.

The invention provides a composite plastic woven bag capable of retaining freshness, and belongs to the technical field of plastic woven bag processing. The composite plastic woven bag capable of retaining freshness comprises a water absorption layer, a woven layer and a protective layer from inside to outside in sequence. The water absorption layer comprises, by weight, 55-75 parts of polyurethane granules, 20-30 parts of polyethylene and 7-15 parts of loofah sponge fiber. The woven layer comprises, by weight, 60-70 parts of polypropylene granules, 20-30 parts of polyethylene and 5-10 parts of coolmax fiber. The composite plastic woven bag has excellent water absorption, moisture resistance, antibacterial and freshness-retaining properties, can delay deterioration of the quality of storedmaterials and prolong the storage time of the materials.

The invention belongs to the technical field of ventilation equipment and discloses a centrifugal fan blade which comprises a centrifugal fan blade body, wherein the centrifugal fan blade body is composed of a diversion ring, an annular blade bottom plate, a hub and a fan blade; the fan blade is arranged between the diversion ring and the annular blade bottom plate; the hub is arranged in the diversion ring; a cylindrical plastic shaft hole sleeve is arranged on the hub; shaft hole sleeve supporting parts are arranged on the periphery of the cylindrical plastic shaft hole sleeve; and the fan blade is composed of an inner arc surface and an outer arc surface. According to the centrifugal fan blade disclosed by the invention, by using renewable polypropylene and polyethylene terephthalate as the main raw materials of the centrifugal fan blade, the centrifugal fan blade has the characteristics of sound absorption, heat and moisture resistance, stability in performance, flame retardance, fire protection and the like, and the using performance is ensured; with the arrangement of the inner arc surface and the outer arc surface of the fan blade, as the set air inlet angle is not larger than 10 degrees, and the set air outlet angle ranges from 25 degrees to 35 degrees, relative noise reduction is ensured when the centrifugal fan blade works; and in addition, the wind power is large, so that ventilation is facilitated.