What is polyurethane acrylate?
Polyurethane acrylates (PUAs) were widely used as oligomers to control the polymerization kinetic and mechanical properties for UV coatings, due to their excellent physical and chemical properties such as adhesion to substrates, impact property, flexibility, chemical and scratch resistance and weatherability [5], [6].
Is urethane acrylate safe?
Inhalation: Inhalation can cause respiratory irritation. Ingestion: Ingestion can cause nausea, diarrhea and/or stomach pain. Chronic: Can cause an allergic skin reaction with repeated or prolonged exposure consisting of redness, swelling and/or rash (urticaria).
What is aliphatic urethane acrylate?
The aliphatic urethane acrylate EBECRYL® 225 is a 10-functional hardcoat product for various plastic substrates use and can be used as a binder to improve the hardness and scratch resistance of a coating.
What do photoinitiators do?
A photoinitiator is a molecule that creates reactive species (free radicals, cations or anions) when exposed to radiation (UV or visible). Synthetic photoinitiators are key components in photopolymers (i.e., photo-curable coatings, adhesives and dental restoratives).
What is epoxy acrylate resin?
Epoxy acrylate resins have been widely used as UV-curing oligomers in corrosion-resistant materials and coatings for their excellent adhesive and non-yellowing properties, hardness and chemical resistance.
What does aliphatic mean in paint?
An aliphatic acrylic urethane coating is a chemical compound used to protect metallic surfaces from contact with external corrosion causing agents. It is composed of several chains of urethane, which is a synthetic crystalline substance with high toughness and flexibility.
What is aliphatic PU?
Aliphatic acrylic polyurethane is a chemical compound used as a coating in industrial and building applications. The chemical makeup of aliphatic acrylic polyurethane makes it tough and flexible, and it is added to many products to create a durable finish.
What is the initiator in composite?
The initiator is per-compound: benzoyl peroxide, and it is combined with an aromatic tertiary amine [1]. Chemical cured composites have many disadvantages such as: color instability, problems with the proportions, mixing process, porosity, long curing time and short working time.
What is a polyester acrylate?
Polyester acrylates are part of the acrylate crosslinkers technologies consisting of polyester acrylates, epoxy acrylates, urethane acrylates, acrylated acrylics, amine modified polyether acrylates and acrylate monomers.
What is Med aliphatic hydrocarbon solvent?
Aliphatic Hydrocarbon Solvents They are mixtures of either saturated, long straight chain (normal-paraffin) or branched chain (iso-paraffin) or cyclic paraffins. These solvents are produced by distillation of crude oil by the appropriate boiling point range fraction, then are treated to improve color and odor.
What is acrylate copolymer emulsion?
Acrylate copolymer emulsion is important component of precoated adhesive film emulsion at present, it shows high hardness, good transparency and good ink affinity[8], while for water-based polyurethane emulsion, it shows outstanding bonding performance, toughness after film forming, good wear resistance,gloss and pigment affinity [9,10].
What is the CAS number for polyurethane?
POLYURETHANE, CAS Number: 9010-69-9 Featured suppliers/resources for POLYURETHANE List your site here
Does allyl group take the crosslinking reaction in polyurethane-acrylate hybrid emulsions?
According to analysis of polyurethane-acrylate hybrid aqueous emulsions and the polyurethane raw materials by the FT-IR, allyl group was observed to take the crosslinking reaction. Through the Malvern particle size analysis, the size and the distribution of emulsion particles were found to become significantly smaller after reaction.
Which hybrid aqueous emulsions dominate the properties of polyurethane adhesive?
ABSTRACT In this paper, the Water-borne polyurethane-acrylate hybrid aqueous emulsions which dominate the properties of the adhesive were prepared by the experiments. According to analysis of polyurethane-acrylate hybrid aqueous emulsions and the polyurethane raw materials by the FT-IR, allyl group was observed to take the crosslinking reaction.