42results about How to "Good anti-stickiness" patented technology

The invention relates to a production method of abietic maleic anhydride resin, comprising the following two reaction steps of: 1, carrying out addition reaction on abietyl and maleic anhydride to generate an abietic maleic anhydride addition product; and 2, carrying out esterification reaction on the abietic maleic anhydride addition product and pentaerythritol to generate the abietic maleic anhydride resin. The production method is easy and convenient to operate, has the advantages of large temperature control range, high operability, small investment and stable product quality and is a method suitable for industrialized production; in the production method, appropriate process conditions including raw material proportion, reaction temperature, reaction time, catalysts, and the like, are adopted, thereby the acid value and the molecular weight range of a resin product can be effectively controlled; in addition, the resin product obtained with the production method has higher acid value of 150-170 mg KOH/g, reasonable softening point at 140-155 DEG C and good water solubility and is suitable for producing water-based ink, and a formed coating film has toughness and better after-tackiness resistance, water resistance and alkali resistance.

The invention relates to a preparation method of a rosin modified phenolic resin. The method comprises the following three steps of reactions: 1. performing condensation of tert-butylphenol, bisphenol A, tung oil and solid formaldehyde under the action of catalyst magnesium acetate and lime to generate polymer of hydroxymethyl tert-butylphenol; 2. performing an addition reaction with rosin to generate an addition product; and 3. performing esterification of the addition product, pentaerythritol and glycerin under the action of catalyst zinc chloride to generate the rosin modified phenolic resin. The preparation method adopts proper raw material proportioning, reaction temperature, reaction time, catalyst and other technical conditions, thus during the production process, the resin viscosity can be effectively controlled, and the operation is simple and flexible and has good effect. The quality of the product is increased, the oil solubility of resin is good, the oil medium viscosity is high, the normal heptane capacity is 4.5ml/g or more; and the prepared paint film ink has good water resistance and alkali resistance, high hardness, excellent anti-after-binding performance, quick-drying performance, lightness and strong adhesive force. Therefore, the preparation method of the invention is applicable to industrial production.

The invention discloses an aqueous plastic paint which comprises the following components by weight percent: 5% of purified water, 70% of (50-100 nano particle size) thermoplastic aqueous acrylic emulsion, 15% of ethanol, 1.7% of alkaline association type thickening agent, 3.4% of dodecyl ester film-forming adjuvant, 0.04% of non-silicone mineral oil defoaming agent, 0.3% of dimethylethanolamine, 0.06% of flatting agent and 4.5% of non-resin aqueous color paste. According to the invention, a nano thermoplastic aqueous acrylic acid resin is adopted, thus a paint film is good in adhesive power; and main raw materials in the formula belong to an aqueous system, and no toxic organic solvent is contained in the formula. Simultaneously, through using a construction method disclosed by the invention, the rapid film formation at room temperature is achieved in normal temperature environment; and in the common coating environment, the aqueous plastic paint has small possibility of adsorbing environment dust to generate particles.

The invention discloses epoxy modified acrylic resin for a sealant and a preparing method thereof; the epoxy modified acrylic resin is prepared from the following raw materials in parts by weight: 50-60 parts of methyl methacrylate, 40-50 parts of butyl acrylate, 2-5 parts of acrylic acid, 1.5-2.0 parts of an initiator, 8-12 parts of epoxy resin, 60-80 parts of a solvent, and 2-4 parts of dodecyl mercaptan. The epoxy modified acrylic resin for the sealant integrates the advantages of epoxy resin and acrylic resin, so that a composite emulsion has the advantages of excellent heat resistance, back sticking resistance, mechanical properties, excellent adhesion power and the like; and the preparation process is simple, and industrialized production can be achieved.

The invention discloses a production technology of a core-shell type room-temperature self-crosslinking acrylate emulsion. A room-temperature self-crosslinking monomer is introduced by adopting a seed pre-emulsification semi-continuous core-shell emulsion polymerization process; and the acrylate emulsion which has a hard-core and soft-shell structure, is self-crosslinked at room temperature and can be applied to a wood coating is synthesized. The emulsion with a core-shell structure has the advantages of good after-tack resistance, low film-forming temperature, relatively good film-forming property, stability and mechanical property; hard monomers SM and MMA have relatively high glass transition temperature; a film has relatively high hardness, glossiness, weather fastness, anti-fouling performance, cohesion and structure strength; soft monomers BA and 2EHA play an internal plasticization role in a polymerization system; and the film has certain flexibility and adhesiveness.

The invention discloses an anti-back-sticking water-based acrylic emulsion and a preparing method and application thereof. The anti-back-sticking water-based acrylic emulsion in the formula is prepared from, by weight, 15-17 parts of a soft monomer, 75-80 parts of a hard monomer, 1-3 parts of methacrylic acid, 3-5 parts of a crosslinking monomer, 3-5 parts of a compound emulsifier, 0.2-0.8 part ofan initiating agent, 0.5-1 part of ammonia water, 0.2-0.8 part of ammonium bicarbonate and 110-125 parts of deionized water. The preparing raw materials of the anti-back-sticking water-based acrylicemulsion are easy to obtain, the price is low, and the anti-back-sticking water-based acrylic emulsion is suitable for industrial production; the preparing method is simple, the temperature is easy tocontrol, and the particle diameter of the obtained emulsion is even; A PVC board is coated with the anti-back-sticking water-based acrylic emulsion, and has the excellent anti-back-sticking performance and adhesive force, water resistance and freeze-thaw stability.

The invention discloses an antifouling pearlescent outer wall paint. The antifouling pearlescent outer wall paint is characterized by mainly consisting of the following materials in percentage by weight: 3 to 28 percent of soft water, 0.1 to 0.23 percent of hydroxyethylcellulose, 0.1 to 0.2 percent of preservative, 0.1 to 0.4 percent of mildewcide, 1 to 3 percent of propanediol, 0.1 to 0.28 percent of organic amine, 0.1 to 0.3 percent of amine salt dispersant, 0.01 to 0.1 percent of low-foam wetting agent, 0.03 to 0.23 percent of defoaming agent, 60 to 90 percent of silicon modified pure acrylic emulsion with a vitrification temperature of over 33 DEG C, 1 to 3 percent of ethylene-polyvinyl acetate emulsion, 3 to 5 percent of dodecanol lipid, 5 to 20 percent of pearlescent powder with good weather resistance and 0.1 to 0.3 percent of thickening agent. The paint is used for an outdoor craftwork, an outer door, etc, has high hardness and good flexility, weather resistance, scrub resistance and antifouling property, also emits fascinated luster like jewelry and is water-based environment-friendly.

The invention discloses water-base toy paint and a production process, which is prepared by dispersion resin, propanediol ether, 20% ammonia, deionized water, ruite titanium dioxide, ultra-fine talc, 15-25 ultra-fine calcium carbonate and defoaming agent. The production process comprises adding dispersion resin, propanediol ether, ammonia, deionized water into a material-preparing pot, evenly agitating and mixing in low speed, then adding defoaming agent to evenly mix, adding pigment and filler to form even paint paste through dispersing in high speed, throwing paint paste into a regulating tank after grinding, agitating to mix evenly in low speed, adding deionized water to dilute. The paint of the invention has environmental-friendly water-base, fast coalescence to blocks, excellent sealing and anti-bonding property, can effectively make up the partial weaknesses and shortcomings of substrate material, prevents the generation of wood grease and spurs, has strong adhesion, high painting film, favorable binding resistance, excellent flat surface of paint film, water resistance and stability, and has excellent toughness, no tending to get soft and corrosion resistance and suitable price.

The invention discloses a black water-based full-shading electromagnetic wave shielding coating which is coated on a conductive substrate and comprises the following components in percentage by mass: 1-20% of polyurethane-acrylic copolymer, 1-20% of acrylic emulsion, 15-35% of nano black paste, 5-10% of polytetrafluoroethylene wax dispersion, 1-1.5% of wetting dispersant, 0.1-1% of flatting agent, 5-10% of coalescing agent, 0.5-1% of thickening agent and the balance of water. The coating has the advantages of being low in light transmittance, good in after-tack resistance, high in electromagnetic wave shielding performance and the like, is applied to various electromagnetic compatibility environments, such as the fields of communication, IT, electric power, medical treatment, electronics, military industry, new energy automobiles and the like, and prevents electromagnetic information leakage and electromagnetic radiation pollution; normal work of instruments and equipment is effectively guaranteed, safety of confidential information is guaranteed, body health of workers is guaranteed, and the problems that in the prior art, paint is high in light transmittance and poor in shielding effectiveness are solved.

The invention relates to the technical field of water-based wood paints, and provides a water-based electrostatic finishing paint, which comprises the following components in percentage by weight: 35-45 percent of first water-based emulsion, 25-35 percent of second water-based emulsion, 4-5 percent of coalescing agent, 0.5-0.7 percent of rheological agent, 0.2-0.3 percent of thixotropic agent, 0.1-13 percent of other auxiliaries and 5-20 percent of deionized water based on 100 percent of total weight of the water-based electrostatic finishing paint. The obtained water-based electrostatic finishing paint is suitable for electrostatic spraying, does not have a sagging phenomenon, has the characteristics of high drying speed, good after-tack resistance and good stacking resistance, can be effectively used for electrostatic spraying, is uniform in coating and relatively good in painting effect in the use process, improves the production efficiency and reduces the production cost.

The invention relates to the technical field of paper plastic processing, in particular to a coating process of water-based plastic substitute. The invention is improved from polyol, and polyester polyol is selected between polyether polyol and polyester polyol. Although polyurethane synthesized by polyether polyol has better flexibility and hydrolysis resistance, polyurethane synthesized by polyester polyol has stronger cohesive energy and more excellent after-tack resistance, in addition, excessive isocyanate with a cyclic monomer is adopted to react with polyester polyol, so that the tensile strength of the polyurethane is improved, and the tensile strength of the polyurethane is improved. The further initiation of the cyclic monomer can improve the strength and water resistance of the coating, then the cyclic monomer reacts with hydroxyethyl acrylate and a hydrophilic chain extender to form a polyurethane acrylate aqueous system, the system has good emulsion stability, and an adhesive film with good hardness, flexibility, adhesiveness, after-tack resistance and water resistance can be rapidly formed through photocuring.

The invention relates to a polycarbon-modified anti-after-tack elastic-feeling paint coating applied to spray coating as well as a preparation method and application thereof. The coating is prepared from the following components in parts by weight: 20-30 parts of polycarbon-modified resin, 10-18 parts of saturated polyester resin, 20-35 parts of butyl acetate, 10-30 parts of diacetone alcohol, 6-8 parts of extinction powder, 0.5-1 part of flatting agents and 0.05-0.15 part of driers. The coating can be applied to spray coating of plastic shells of electronic and electrical appliance products and has the advantages of excellent touch elastic hand feeling and after-tack resistance.