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197results about How to "Low VOC" patented technology

Antibacterial water color ink and method for preparing same

The invention relates to an antibacterial water color ink for printed matters for packaging children products and a method for preparing the same. The method comprises the following steps: firstly, according to the stated weight percentage, evenly mixing and stirring part of a water soluble resin dispersoid, an amine stabilizer, a latent solvent, a bactericidal agent, deionized water and an antifoaming agent, then adding a pigment into the mixture, and dispersing the pigment at a rotating speed of between 500 and 1,200 rpm to prepare an even water soluble dispersed slurry; and secondly, pumping the water soluble dispersed slurry obtained in the step A into a sand mill by a pump, grinding the slurry until the fineness is less than or equal to 10 microns, then adding the remaining water soluble resin dispersoid, a wetting agent and a rheology modifier to the slurry, stirring the mixture until the materials are dispersed and mixed evenly, and adjusting the viscosity to prepare the antibacterial water color ink. The antibacterial water color ink prepared by the method has good adhesive force to various base materials or textiles, and the varnish thereof is full and has certain flexibility; besides, the antibacterial water color ink has low smell and ultra-low VOC without PAE and heavy metals, and has good antibacterial and antifungus functions.
Owner:SHENZHEN OCEANPOWER NEW MATERIALS TECH

Water-based non-curable rubber asphalt coating and preparation method thereof

The invention discloses a water-based non-curable rubber asphalt coating and a preparation method thereof and belongs to the field of coatings. Modified rubber asphalt and mixed tackifying resin are emulsified, and a self-adhesive additive, an interface additive, an anti-freezing agent and an anti-ageing agent are compounded. The problem that the non-curable rubber asphalt waterproof coating cannot be applied until the coating is heated is solved, a process is simplified, and the application range of a product is widened. The initial adhesivity and persistent adhesivity of the coating are improved by using a tackifying resin emulsion. The problem that the non-curable rubber asphalt waterproof coating cannot be fully spread on a damp interface due to poor adhesivity is solved by using a silane interface agent, full-spreading seamless construction can be achieved, the hidden danger of water leakage or seepage is completely eradicated, and the permeation resisting performance meets the industrial standard. The water-based non-curable rubber asphalt coating is cured no longer by innovatively using the self-adhesive additive after coating construction is completed, and is good in puncture resistance and self-curing performance. Quick demulsification of the water-based non-curable rubber asphalt coating is achieved by adopting a double-component spraying technology.
Owner:SHANDONG DASHAN ROAD & BRIDGE ENG

Water-borne acrylic polyurethane primer-topcoat corrosion-resistant decorative coating containing double components and preparation method of coating

The invention relates to a water-borne acrylic polyurethane primer-topcoat corrosion-resistant decorative coating containing double components. The water-borne acrylic polyurethane primer-topcoat corrosion-resistant decorative coating comprises a component A and a component B, wherein the component A comprises ingredients in parts by weight as follows: 35-55 parts of a water-borne hydroxyl acrylic acid emulsion, 10-20 parts of anti-rust pigments, 5-20 parts of coloring pigments, 5-15 parts of filler, 0.3-1.0 part of a dispersing agent, 0.2-1.0 part of a water-borne anti-settling agent, 0.3-0.6 parts of a defoaming agent, 0.3-0.6 parts of a foam breaker, 3-5 parts of a cosolvent, 4-10 parts of a rheological thickener, 0.2-0.5 parts of a substrate wetting agent, 0.3-5.0 parts of water-borne wax liquor, 0.3-0.6 parts of a flash rust preventing agent and 10-20 parts of deionized water; the component B comprises 10-15 parts by weight of a water-borne polyurethane curing agent. A preparation method comprises steps as follows: the raw materials are sequentially added to a container, are uniformly stirred at medium and high speeds and then are dispersed for 10 min respectively, a mixture is ground, the deionized water is added for uniform stirring, and the component A is prepared. The water-borne acrylic polyurethane primer-topcoat corrosion-resistant decorative coating containing the double components has the benefits of excellent outdoor weather fastness, adhesive force, water resistance, salt water resistance and salt fog resistance.
Owner:天津灯塔涂料工业发展有限公司

Aqueous polyurethane coating with increased limiting film thickness and preparation method of aqueous polyurethane coating

The invention discloses an aqueous polyurethane coating with an increased limiting film thickness and a preparation method of the aqueous polyurethane coating. The aqueous polyurethane coating comprises a composition A and a composition B, wherein the composition A comprises the following components in parts by weight: 35-42 parts of water based hydroxy acrylic acid a, 15-18 parts of water based hydroxy acrylic acid b, 25-30 parts of a filler, 1-3 parts of additives, 4-6 parts of a film-forming additive c and 7-10 parts of water; the composition B comprises the following components in parts by weight: 8-10 parts of water, 80-90 parts of isocyanate and 3-5 parts a film-forming additive d. The preparation method comprises the following steps: uniformly mixing and stirring water and part of the additives; adding the filler; carrying out dispersion in a high-speed state till the preset fineness is reached; then, reducing the dispersion speed, and uniformly stirring water based hydroxy acrylic acid a, water based hydroxy acrylic acid b and part of the additives to obtain the composition A; uniformly mixing and stirring water, isocyanate and the film-forming additive d to obtain the composition B. The aqueous polyurethane coating provided by the invention is extremely low in VOC, high in physical and mechanical performance, high in limiting film thickness, and suitable for the application scenario of environmental-friendly high decorative finishing coating.
Owner:HAOLISEN COATING SHANGHAI

High density polyurethane and raw material composition, combined polyether, preparation method and application thereof

The invention discloses a combined polyether, a polyurethane raw material composition, high density polyurethane and application thereof. The combined polyether comprises the following components by weight: 20-40 parts of sorbitol polyether polyol, 20-40 parts of sucrose polyether polyol, 15-25 parts of polyether polyol DL-1000, 15-25 parts of polyether polyol 330N, 2-3 parts of a foam stabilizer, 0.4-0.8 part of an organic bismuth catalyst, and 0.1-0.5 part of water. The sum of sorbitol polyether polyol, sucrose polyether polyol, polyether polyol DL-1000 and polyether polyol 330N is 100. The sorbitol polyether polyol satisfies: a hydroxyl value of 480-520mgKOH/g, a functionality degree of 4.3-4.8, an acid value of less than or equal to 0.15mgKOH/g, and viscosity of 5400-6200mPa.s under 25DEG C; the sucrose polyether polyol satisfies: a hydroxyl value of 330-370mgKOH/g, a functionality degree of 4.0-4.5, an acid value of less than or equal to 0.15mgKOH/g, and viscosity of 2000-4000mPa.s under 25DEG C. The high density polyurethane has high strength and high toughness, is molded by spray coating, needs no mould, is especially suitable for strengthening various materials with curved surfaces. The formed polyurethane strengthening layer is continuous and seamless, and has a good bonding effect with the substrate.
Owner:SHANGHAI DONGDA POLYURETHANE

Polypropylene composite material for automotive interior parts and production process of polypropylene composite material for automotive interior parts

The invention discloses a polypropylene composite material for automotive interior parts and a production process of the polypropylene composite material for the automotive interior parts. The polypropylene composite material for the automotive interior parts is prepared from, by weight, 55-80 parts of homo-polypropylene, 6-12 parts of ethylene-propylene-diene monomer rubber, 15-25 parts of talcumpowder, 0.2-0.8 part of a light stabilizer, 5-7 parts of a compatibilizer, 0.8-1.2 parts of a coupling agent, 0.3-0.6 part of an antioxidant, 5-8 parts of a flame retardant, 3-6 parts of an antibacterial and 0.2-2.1 parts of an adsorbent. Compared with the prior art, the polypropylene composite material for the automotive interior parts has advantages of great antibacterial and fame retardation performances, low VOC (volatile organic compound) and the like. In addition, the polypropylene composite material for the automotive interior parts has appearance and performances of rubber and can bemade into the automobile interior parts such as driver's seat outer lateral plates, small cover caps, lateral plate inner plates, inner lateral plate plastic parts, passenger seat outer lateral plates, door sheet armrest frameworks, door embedded decorative plate frameworks, door embedded decorative plates and the like through an injection molding process.
Owner:湖北瀚氏汽车零部件有限公司
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