最新消息
最新消息


EPOXY epoxy material classification and characterization of construction Introduction

Epoxy resin is one of the common, also belongs to the ㄧ engineering plastics, can also be used in the coatings, which are quite superior physical strength, world power coefficient, acid and alkali resistance, chemical resistance and adhesion of the Wu-based materials with the exception of very superior UV resistance low, vulnerability to high energy radiation damage and chalking, so the surface will then a layer of light resistance surface to be protected.
 
The most common plastic epoxy resin as the composite material layer printed circuit boards, water towers, yachts and painting of the bed, but the surface will generally make up UP PU or epoxy layer coating to protect it, Mr. so-called floor coating mounted in the industry as to bed coating, the underlying general first to teach low viscosity, high solid content of the paint primer to do its low viscosity and good permeability of concrete to improve the adhesion, after the one in epoxy resin and glass fiber blended to reinforce the overall strength of the composite material, and finally finish on the resilient PU do, but it is generally an epoxy resin and epoxy resin is mixed to produce the amino crosslinking reaction and aggregate the coating, and its paint to oligomers patterns were sold in two-component, than those without the taste of an epoxy resin, and the smell of ammonia is amino resin, rather than reactive monomer. The epoxy printed circuit board places to add an ultraviolet light initiator and initiator decomposition reaction.
 
The instant glue (cyanoacrylate) is not a tree epoxy, AB glue is an epoxy resin, which will start and be an agent for the epoxy resin bed as the other agent is an amine resin, after mixing the two causing polymerization reaction, followed by plastic soil is such a system, but nothing different resin properties.
 
And instead of epoxy coating metal surfaces, but melamine - acrylic paint the oil is, if the sun a few days will be an epoxy resin deterioration can you use ㄚ, epoxy coating for the general air dry two liquid type, while the single liquid type of light-curing generally designed primarily, but basically there to paint their own free pungent ammonia smell is not very good, pay attention to ventilation problems as well as its mixing ratio must be correct for exert its design strength and effectiveness. , But only for the epoxy primer coating thereon topcoat need to protect the job.
 
Coating resins can score ten, and one of epoxy, which have a considerable advantage of the feature also has its drawbacks and limitations, so use will be in accordance with the needs of the different systems in different coating paint coating has to play its different paint features to achieve their demands.
 
Epoxy resin systems for coatings or plastic most favorable for the adhesion properties of inorganic materials and its mechanical strength, solid glass substrates, cement bottom paint only the most privileged, in part of the building used to reinforce the structure were cracked, like 921 earthquake damaged structures used to perfusion.
Construction on the level below, water-based epoxy floor coatings coating method of construction to make a brief introduction.
  Construction preparation
(1) Material: water-based epoxy floor paint primer, coating, coating, quartz sand, quartz powder and related materials.
(2) Tool: a substrate grinding tools, vacuum cleaners, fill blade screwdriver, roll, small agitators.
(3) construction conditions
a, the ground cement mortar tick chisel and cleaned, grease impurities if the ground shall be wiped clean with solvent;
b, the original concrete floor requires a hard, flat, can not afford to sand, ground if hollowing, peeling, sand, cracks, etc., must press the claim process before construction. As for the original terrazzo floor, tile and other smooth surface. Must first rough-hewn surface;
c, as long as no water, or obvious leakage can be construction, the construction site conditions should be less than 85% relative humidity, ambient temperature is above 10 ℃.
  Construction steps
(1) primer: concrete substrates processed and cleanup can be carried out after a clean primer (roller or brush), roller or brush should be uniform, consistent thickness, the primer has a certain vapor permeable function, can enhance the strength of the base material and increase the adhesion of the coating to the substrate.
(2) coating: quartz sand and quartz powder added to the aqueous epoxy mortar has been dubbed with a good water-based epoxy coating (the coating), and with a trowel to evenly coated, for increasing the coating thickness and compressive strength;
(3) grant up: After the coated sand the floor polish and water-based epoxy coating (the coating) and quartz powder formulated according to the actual needs of putty number of road construction required to achieve smooth and no holes, no batch of knives and India and sand Indian mill prevail;
(4) top coat: roll with aqueous epoxy topcoat paint roller two, after the completion of the requirements of the overall sheen soft, clean, color uniform, no hollowing;
(5) conservation: the surface layer of hard work to 24 hours, during which should be closed, so as not to affect the surface clean and smooth effect. 3 days before the Master, the completion of maintenance 7 days before officially put use (with 25 ℃ prevail, low temperature need moderately extended opening hours).
5 Conclusion
Water-based and solvent-borne epoxy floor paint epoxy floor coatings have comparable performance, existing water-based epoxy floor coatings can be used in pharmaceutical, food, hospitals, textiles, chemicals, electronics and other sectors of production plants, office buildings, warehouse, laboratory floor coating [5], especially suitable for a floor, basements, underground parking and other more humid environment. As green products, water-based epoxy necessarily get people's approval and widespread use.
-Epoxy resin Civil engineering