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123results about How to "Simple performance" patented technology

Hyperbranched UV (ultraviolet) resin as well as preparation method and application of hyperbranched UV resin in coating

InactiveCN105461933ALow price advantageHigh hardnessCoatingsSolventChemistry
The invention discloses hyperbranched UV (ultraviolet) resin as well as a preparation method and an application of the hyperbranched UV resin in a coating and belongs to the technical field of coatings. The method comprises steps as follows: 1) hyperbranched polyester, acrylic acid monomers and a solvent are dissolved at the temperature of 90-150 DEG C, a catalyst and a polymerization inhibitor are added, and the mixture reacts for 4-8 h; 2) a primary product is added to water, and the mixture is stirred for 0.5-1 h and left to stand; 3) water on the upper layer is separated, and a liquid on the lower layer is treated according to the step 2) until the pH (potential of hydrogen) of a water solution ranges from 6 to 7; 4) viscous materials are dried in a vacuum state at the temperature of 30-60 DEG C, and a product is obtained. The hyperbranched UV resin has advantages of multiple conventional resin, is low in cost, simple in process and high in performance cost ratio and has wide market prospect; the obtained coating is high in curing speed, small in curing volume shrinkage, high in glossiness, good in adhesion, high in hardness, excellent in flexibility, excellent in impact resistance, not prone to embrittlement and excellent in weather fastness, few solvents are evaporated, and the economic benefits are remarkable.
Owner:WEIHAI CY DENDRIMER TECH

Anti-crack corrosion-resistant concrete admixture as well as preparation and application of anti-crack corrosion-resistant concrete admixture

InactiveCN106698992AUltrafine particlesSimple performanceSlagMetakaolin
The invention discloses an anti-crack corrosion-resistant concrete admixture as well as preparation and an application of the anti-crack corrosion-resistant concrete admixture. The anti-crack corrosion-resistant concrete admixture is prepared from the following raw materials by weight: 1.5-2.5 parts of fiber comprising a polypropylene fiber, a polyethylene fiber and a carbon fiber, 90-95 parts of an active mineral additive comprising a coal ash, metakaolin, slag and silica fume, and 3.5-7.5 parts of a reactive activator comprising nano dysprosium oxide, nano lanthanum oxide and nano yttrium oxide, the anti-crack corrosion-resistant concrete admixture is doped in a concrete, the weight ratio of a cement in the concrete is 10-40%, a proper amount of a polycarboxylic acid water reducer is added, and the specific doping amount is determined according to the coastal engineering. The pore structure of the concrete is thinned, the corrosion of harmful ions is reduced, the long-term strength of the concrete is guaranteed to improve stably, the carbon dioxide is absorbed, the peaceability, the compactness, the corrosion resistance, the early strength and the anti-cracking ability of the concrete are improved, the service life of the coastal engineering is prolonged, and the economic, social and ecological effects are better.
Owner:广西壮族自治区水利科学研究院
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