31results about How to "With flame retardant effect" patented technology

The invention relates to the field of heat preservation materials, and provides a graphene heat accumulation pad and a preparing method thereof. The graphene heat accumulation pad comprises a damp-proof layer at the bottom and a heat accumulation layer on the top, the heat accumulation layer fits the upper surface of the damp-proof layer, the damp-proof layer is made from a radiation crosslinkingpolyethylene foaming material, the heat accumulation layer is prepared from a graphene / organic compound phase-change material, and a layer of aluminum foil fits the bottom face of the damp-proof layer. The invention provides a novel thin film material with the functions of heat preservation, heat accumulation and damp proofing, and the novel thin film material is suitable for thermal insulation materials of various floors and floor heating systems.

A phosphorus, nitrogen expansion type epoxy resin flame retardant and a preparation method thereof, relating to a chemical synthesis agent and a preparation method thereof, the preparation raw materials include: phosphorus oxychloride, diethylamine and glycidol, the preparation of the flame retardant The method is divided into two steps to carry out, the first step, phosphorus oxychloride (POCl3) and diethylamine (EDA) are reacted under certain conditions to generate phosphorus, nitrogen intermediate diethyl dichlorophosphonamide (DPAD); In the second step, DPAD and glycidol are stirred and reacted for a certain period of time under the introduction of an inert gas, and the product is filtered, washed, rotary evaporated and dried to obtain a light yellow liquid. The compound has good compatibility with epoxy resin, can be cured together with epoxy resin, and has little effect on the mechanical properties of the cured product. It can be used as a reactive diluent for epoxy resin and can effectively improve the epoxy resin. flame retardant properties. The process of the invention has simple production conditions, high product purity and yield, and convenient post-treatment process.

The invention provides paper for painting and calligraphy. The paper for painting and calligraphy is prepared from, by weight, 10-30 parts of bamboo pulp, 50-80 parts of herba junci setchuensis pulp, 5-20 parts of wood pulp, 5-15 parts of water-soluble polyvinyl alcohol fibers, 5-20 parts of silk, 0.01-1 part of starch adhesive and 0.001-0.5 part of a waterproof agent. The starch adhesion is prepared from starch, carbamido resin, sodium bromide, ammonium chloride and water. The invention further discloses a manufacturing process of the paper for painting and calligraphy. By addition of the starch adhesive according to a specific formulation, the paper for painting and calligraphy has flame-retardant and fireproof effects; due to addition of the silk, light weight, thinness and softness of the paper are achieved; by spraying of the waterproof agent, water resistance of the paper is improved. The manufacturing process is suitable for large-batch production, and operation efficiency is improved.

The invention provides a preparing method of inflame-retarding type big-diameter plate-shaped calcium carbonate. On the basis of a traditional preparing method of plate-shaped calcium carbonate, the draw ratio of fibroid light calcium carbonate is adjusted, graphene is added, in a grinding process, graphene is regarded as a base plane, the diameter of obtained plate-shaped calcium carbonate is obviously increased, the radius-thickness ratio is also increased accordingly, and meanwhile the advantages of the traditional method that the particles are uniform, the particle diameters are narrow in distribution are maintained, and the inflame-retarding type big-diameter plate-shaped calcium carbonate is large in superficial area and high in covering power; magnesium-aluminum hydrotalcite of which the particle diameter is 50-200 micrometers is added to conduct joint grinding, on one hand, the lamellar surface of the magnesium-aluminum hydrotalcite is tiled with graphene, and the radius-thickness ratio of calcium carbonate is further increased; on the other hand, in the grinding process, the magnesium-aluminum hydrotalcite forms nanoscale small particles, the nanoscale small particles are dispersed to the surface of plate-shaped calcium carbonate, and prepared plate-shaped calcium carbonate has a certain inflaming retarding effect.

The present invention relates to a method for producing a board-like cork material in which the (ultra) fine powder (particles) remaining in the many metaphysical recesses in a cork surface are not drawn out while at the same time ensuring that there is no damage to the specific functionality of cork when employed in the internal space of a business room or elsewhere. The method according to the present invention comprises the steps of: (a) coating an adhesive onto one surface or both surfaces of a substrate of a board-like cork material and then hot pressure bonding and thereby adhering a cork-patterned paper onto the same, and polishing and brushing the surface of the cork-patterned paper; (b) using air vacuum adsorption to remove the fine cork powder which is present in the plurality of metaphysical recesses formed in the surface of the cork-patterned paper, after having passed through Step (a); (c) removing the fine cork powder which remains in the plurality of metaphysical recesses formed in the surface of the cork-patterned paper, by washing the plurality of metaphysical recesses formed in the surface of the cork-patterned paper after Step (b); and (d) infilling the metaphysical recesses with a colouring composition by compressing and thereby impregnating the same by means of a roller coater and at the same time effecting colouration of a level-surface type or else effecting only colouration of a uniform type by excluding calcium carbonate filler from the colouring composition, and printing or top coating by means of a gravure printing roller or spray and then passing through an embossing roller.

The invention discloses inflaming retarding water-tolerant polyurethane tackiness agent which is characterized by comprising following components by weight ratio: 88%-92% hydroxyl polyurethane resin, 5.5%-10% isocyanate group (NCO) enclosed type diisocyanate-trimethoprim (TMP), 1.5%-2.5% sodium dodecyl sulfate and 0.5%-1.5% phosphonolipid fire retardant thiamine pyrophosphate (TPP). The invention further discloses a preparation method of the inflaming retarding water-tolerant polyurethane tackiness agent. NCO enclosed type diisocyanate-TMP addition product aqueous dispersion is adopted, reaction of self de-enclosing NCO perssad with hydroxyl-terminated prepolymer is utilized to achieve solidification, and a strong chemical bond is formed to enable the tackiness agent to have the advantages of being strong in binding power, good in water tolerance, washable, free-falling, sun-proof, good in thermal endurance, endurable in chemical products and the like. Grade of products is greatly improved, simultaneously, the inflaming retarding water-tolerant polyurethane tackiness agent is simple in use, convenient to operate, environment-friendly, non-toxic, and environment-pollution-free, has inflaming retarding function and no volatile organic compounds (VOC) discharging, and is beneficial to protecting environment and health of using and production persons.