Polyurethane Powder Coating

now browsing by tag

 
 

Polyaspartic Coating Technology

The chemistry is based on the reaction of an aliphatic polyisocyanate and a polyaspartic ester, which is an aliphatic diamine. This technology was initially used in conventional two-component polyurethane solvent-borne coating formulations because the polyaspartic esters are excellent reactive diluents for high solids polyurethane coatings. More recent developments in polyaspartic coating technology have concentrated on achieving low or near-zero VOC coatings where the polyaspartic ester is the main component of the co-reactant for reaction with a polyisocyanate. The unique andRead More …

What is ABS plastic coating

ABS plastic Department of butadiene – acrylonitrile – styrene terpolymer, widely used in the production of home appliances products, housing and automobile and motorcycle parts. Ketone, benzene and ester solvent capable of dissolving ABS plastic, alcohol and hydrocarbon solvent dissolution of ABS plastic, so the general use of ethanol – isopropanol solvent for surface treatment, usually air spraying or electrostatic spraying process for construction . ABS plastic coating paints a wide range of options-based thermoplastic acrylic coatings, epoxy alkyd nitrocellulose,Read More …

The global demand for adipic acid is expected to grow at over 4% from 2013 to 2018

The global demand for adipic acid was estimated to be over 3,000 kilo tons in 2011, and is expected to grow at a CAGR of over 4% from 2013 to 2018. Asia Pacific is the largest consumer of adipic acid, owing to high production volumes of nylon and polyurethanes, followed by Europe and North America, together accounting for over 90% of the global demand in 2012. In terms of growth, Asia Pacific, especially China and India, is expected to beRead More …

BASF is the leading supplier of Polyurethanes Solutions for systems, specialties and PU basic products.

BASF is the leading supplier of Polyurethanes Solutions for systems, specialties and PU basic products. With its global network of 38 polyurethanes system houses and its comprehensive product and service portfolio, BASF is the preferred partner of its customers in many industries. The BASF brand “Polyurethane Solutions” represents over 40 years of experience of the market and technology leadership for Polyurethanes Systems. In the extremely service-oriented business of polyurethanes systems and specialties, reliable PU experience and competence are crucial. ThroughRead More …

What is Polyurea coating and Polyurethane Coatings

Polyurea coating is basically a two-component system based on Amine terminated prepolymer crosslinked with Isocyanate which forms the urea linkages. The crosslinking between reactive polymers take place at a rapid speed at ambient temperature. Normally this reaction does not require any catalyst. Since the Pot-life of such coating is within seconds; special type of Plural Component spray gun is require to carry out the application. The coatings can build up to 500 to 1000 microns of thickness in a singleRead More …

What is Moisture-cured polyurethane

Moisture-cured polyurethane is one-part polyurethane that its cure is initiatedly environmental moisture. The moisture-curable polyurethane is mainly consists of isocyanate-terminated pre-polymer. Various types of pre-polymer can be used to provide required property. For instance, isocyanate-terminated polyether polyols are used to provide good flexibility due to their low glass transition temperature. Combining soft segment, such as polyether, and hard segment, such as polyurea, provides good hardness and flexibility of coatings. Moreover, the properties are also controlled by selecting types of isocyanatesRead More …

The binder,referred to as the vehicle,is the actual film forming component of paint

The binder, commonly referred to as the vehicle, is the actual film forming component of paint. It is the only component that must be present; other components listed below are included optionally, depending on the desired properties of the cured film. The binder imparts adhesion, binds the pigments together, and strongly influences such properties as gloss potential, exterior durability, flexibility, and toughness. Binders include synthetic or natural resins such as acrylics, polyurethanes, polyesters, melamine resins, epoxy, or oils. Binders canRead More …

Adhesion of Dimer-Based Polyurethanes to Various Substrates

Dimerized fatty acids are expected to have a high affinity for low-energy surfaces, since the long alkane chains show a structure similar to polyethylene.Polyurethane adhesives were prepared from a variety of polyether and polyesters diols and pure MDI in an NCO:OH ratio of 2.5.These materials were tested as adhesives for two polyethylene substrates and for steel after full cure.It should be realized that these tests were performed to quantify the difference in adhesion of the PU resins to polyethylene forRead More …

Two strategies for designing coatings with exceptional mar resistance

There are wo strategies are available for designing coatings with exceptional mar resistance. They can be made hard enough that the marring object does not penetrate far into the surface; or ¬†They can be made elastic enough to recover after the marring stress is removed. If the hardness strategy is chosen, the coating must have a minimum hardness. However, such coatings may fail by fracture. Film flexibility is an important factor influencing fracture resistance. Use of 4-hydroxybutyl acrylate instead ofRead More …