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It can be thickly coated with solvent-free epoxy resin putty for the inner and outer decks of ships and the inner walls of cabins
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An epoxy resin and solvent-free technology, applied in the direction of filling slurry, etc., can solve problems such as easy cracking, great physical hazards for construction personnel, and failure to meet maintenance and use requirements, and achieve the effect of light coating quality
Active Publication Date: 2020-12-15
MARINE CHEM RES INST CO LTD
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Problems solved by technology
However, most of the repair materials currently used in shipyards are water-based epoxy putty and atomic ash. Because water-based epoxy putty is easy to crack when applied thickly, and the smell of atomic ash is very harmful to the construction workers, they cannot meet the maintenance requirements.
The putty prepared in the published patent CN 105860642 A has a short service time of only 18 minutes after preparation, and the weight gain of thick coating is obvious, which cannot meet the weight reduction requirements of shipyards
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Embodiment 1
[0024] Take by weighing 20 parts by weight of epoxy resin DER331, 5 parts by weight of hyperbranched polyether type epoxy resin, and 4 parts by weight of RDGE, put them into a kneader and disperse with stirring, add 20 parts by weight of hollow glass microspheres, 6 parts by weight of organic bentonite, 5 parts by weight of titanium dioxide is further stirred evenly, then dispersed evenly with a kneader, filtered and loaded into a barrel to become component A.
[0025] Take polyamide curing agent 300#12 weight parts, American Huntsman 450 8 weight parts, put into the kneader and stir and disperse, add 3 weight parts of talcum powder, 2 weight parts of organic bentonite, 3 weight parts of hollow glass microspheres, 2 parts by weight of iron red, filtered and barreled to become the B component of the paint.
[0026] This product is used on the deck of a towing ship in a shipyard in Guangzhou. During construction, the surface of the deck is cleaned to ensure that the surface is c...
Embodiment 2
[0032] Weigh 15 parts by weight of epoxy resin DER331, 10 parts by weight of hyperbranched polyether type epoxy resin, and 2 parts by weight of RDGE, put them into a kneader and disperse with stirring, add 25 parts by weight of hollow glass microspheres, 4 parts by weight of organic bentonite 10 parts by weight of titanium dioxide are further stirred evenly, then dispersed evenly with a kneader, filtered and loaded into a barrel to become component A.
[0033] Weigh 10 parts by weight of polyamide curing agent 300#, 10 parts by weight of American Huntsman product 450, put it into a kneader to stir and disperse, add 5 parts by weight of talcum powder, 3 parts by weight of organic bentonite, and 4 parts by weight of hollow glass microspheres 1. 1 weight part of iron red, which is filtered and barreled to become the B component of the paint.
[0034] When using, mix the two components of A and B according to the weight ratio of 2:1. After the mechanical stirring is even, the cons...
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Abstract
A solvent-free epoxy resin putty is composed of a component A and a component B, the component A is composed of an epoxy resin, a hyperbranched polyether epoxy resin, an active modifier, hollow glassbeads, organic bentonite and titanium dioxide, and the component B is composed of a polyamide curing agent A, a polyamide curing agent B, a talcum powder, organic bentonite, hollow glass beads and iron oxide red. No addition of a solvent in the formula, normal-temperature curing and the production and construction process meet environment-friendly requirements, and a coating formed by the putty has a light weight, and can be widely used as a material for filling, sealing, decorating and the like of inner metal and nonmetal (wood, cork, concrete and the like) surfaces of inner and outer decks and cabins of ships.
Description
technical field [0001] The present invention has developed a new type of environment-friendly light solvent-free epoxy resin putty. After testing and practical application, it is known that the coating has a solid content of more than 99% and voc is less than 40g / L, which solves the problem of water-based epoxy putty in ships. Problems such as cracking of thick coating on inner and outer decks, strong smell of solvent-based putty, and environmental pollution. It can be widely used as materials for filling, closing and decorating the inner and outer decks of ships, metal and non-metal (wood, cork, concrete, etc.) surfaces inside and outside cabins. Background technique [0002] Due to collision, welding and other reasons during ship construction, there will be pits of different depths on the surface of the inner and outer decks of the ship and the inner bulkhead of the cabin. These surface repairs are carried out when the ship is about to be delivered, and the time is tight a...
Claims
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