37results about How to "Anti-mildew effect" patented technology

The invention provides a mildewprevention sponge material. A preparation methodcomprises the steps of firstly preparingmodified resin, a surfactant and a foaming agent into a first material, preparingglutaraldehyde, imidazoline bismuth sulphate, a liquid curing agent and Isooctyl mercaptopropionate into a second material, adding the preheated first material slowly into the second material to forma mixture, and finally foaming to obtain the mildewprevention sponge material; the foaming is sufficient, the sponge material has good resilience performance, and molecular chains of the glutaraldehyde and the imidazoline bismuth sulphate are intertwined with each other and inserted between pores of the sponge material to synergistically act as a mildew prevention effect. The sponge material hasboth good mechanical properties and mildew prevention performance.

The invention provides a mold-proof sponge material and a preparation method thereof. The method comprises the following steps: firstly, preparing a first material by adopting modified resin, surfactant and foaming agent; preparing a second material by adopting glutaraldehyde, imidazoline biguanide sulfate, liquid curing agent and isooctyl sulfhydrate; slowly adding the preheated first material into the second material and preparing into a mixture; and foaming, thereby acquiring the mold-proof sponge material. The foaming is sufficient, the elasticity is excellent, the molecular chains of glutaraldehyde and imidazoline biguanide sulfate are mutually intertwined and penetrate into the holes of the sponge material and a mold-proof effect is achieved. The sponge material provided by the invention has excellent mechanical property and anti-mold property.

The invention discloses a biological mildewproof agent and a preparation method thereof. The biological mildewproof agent comprises the following raw materials in terms of 100 parts of water by weight: 2 to 8 parts of antibacterial protein or a crude antibacterial protein product, 0.5 to 3 parts of a film forming agent, 0.5 to 5 parts of a plasticizer and 0.5 to 4 parts of a cross-linking agent. The preparation method comprises the following steps: adding water into the film forming agent, completely dissolving the film forming agent, then adding the antibacterial protein, the plasticizer andthe cross-linking agent, and carrying out uniform mixing so as to obtain a biological mildewproof solution. According to the invention, the crude antibacterial protein product is a fermentation brothof B.amyloliquefaciens F1 and is obtained by ultrafiltration and ammonium sulfate fractional precipitation, while the antibacterial protein is prepared from the above-mentioned crude antibacterial protein product through further separation means like dialysis, ion exchange and gel chromatography. The biological mildewproof solution obtained by adding a main antibacterial substance namely the antibacterial protein inhibits the growth of Aspergillus flavus, has characteristics like safety and high efficiency, and solves the problems of high price and complex operation for physical preservation and a problem of pesticide residue brought by chemical preservation. The biological mildewproof agent provided by the invention has the advantages of economy, high efficiency, convenient use, and greatapplication prospects in the fields of agriculture and food preservation.

The invention discloses a mildew-proof bamboo particle board and a preparing method thereof. The bamboo particle board is prepared by chipping and flaking a bamboo material to obtain bamboo particlesand conducting high temperature preprocessing, drying, gluing, pre-pressing and hot pressing. Bacteria carried in the bamboo particles are killed after the bamboo particles are subjected to high-temperature heat treatment, starch, sugar, protein and other chemical components are degenerated through high-temperature heat treatment and are not nutrients of mildew any more, and the mildew-proof performance of the bamboo particle board is effectively improved. In addition, the mildew-proof bamboo particle board uses the bamboo material short in growth cycle and bamboo material processing residuesas the raw materials, only an adhesive and a waterproof agent are added in the gluing step in the production process, no preservative, insect-resist agent and other harmful components are added, and the mildew-proof bamboo particle board is an environment-friendly artificial board and can be widely used as an indoor decoration material or used for manufacturing furniture.

The invention discloses an improved mildew-proof and waterproof coating, which is prepared from the following raw materials in parts by weight: 5-8 parts of ammonium dichromate, 1.2-2.7 parts of slag Portland cement, and 0.8-1.6 parts of m-p-cresol , 2.3-3.5 parts of rare earth drier, 2.5-5 parts of polyisocyanate, 1.2-2.3 parts of alkylphenol polyoxyethylene ether phosphate, 1.5-3.3 parts of phenylethylphenol polyoxyethylene ether polyoxypropylene ether and 1.2-2.9 parts of benzyl naphthalenesulfonic acid formaldehyde condensate dispersant. Compared with the existing waterproof coating, the present invention has excellent waterproof and anti-seepage performance, and can form a breathable and hydrophobic film with a certain depth on the outer wall of the building to prevent the intrusion of water, and at the same time, it can also play the role of preventing mildew on the wall , is less affected by ultraviolet rays, has the characteristics of long service life and good durability, can be applied to various building bases, and is convenient for construction.

The invention discloses a preparation method of biomass briquette fuel pressed from pig manure, adding 70-80 parts of pig manure and slag, 10-15 parts of coal powder and sodium carboxymethyl starch to the collected pig manure and slag according to the weight ratio 1 to 3 parts, 2 to 3 parts of potassium chlorate, 2 to 3 parts of decoking agent, 0.5 to 1 part of smoke suppressant, 3 to 6 parts of industrial salt, 1 part of pig manure fermentation biological strain; stir evenly; through screw extrusion Extruded by a machine, extruded and cut to obtain a molded body; and then fermented to obtain a biomass fuel block. There are many sources of pig manure raw materials, which are widely applicable and do not need to be dried; the shape is good, the density is high, and the pig manure can be formed without high temperature; it is environmentally friendly and mildew-proof; it is low-cost and consumes no energy to dry the manure.