Hydraulic Two-component Polyurea Spraying Machine

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Product Introduction

In the early stage, the definition of spraying polyurethane, polyurethane (urea) and polyurea was ambiguous. That is to say, the system in which the middle end amino resin and end amino chain extender content of R component were more than 80% was called polyurea. The system with hydroxyl terminated resin and hydroxyl terminated chain extender content of more than 80% in R component is called polyurethane. Those in between are called urethane (urea) or a mixture.

Spray polyurea: is A kind of elastomer material produced by reaction of isocyanate component (referred to as A component) and amino compound component (referred to as R component). Isocyanates can be aromatic or aliphatic. The A component may be monomers, polymers, derivatives of isocyanates, prepolymers, and semi-prepolymers. Prepolymers and semi-prepolymers are prepared by reacting amino or hydroxyl terminated compounds with isocyanates. The R component must be composed of end amino resin and end amino chain extender. In the end amino resin, no hydroxyl component and catalyst shall be contained, but the auxiliary agent which is convenient for pigment dispersion may be included.

The polyurea technique is

Spray Polyurea Elastomer (Spray Polyurea Elastomer, hereinafter referred to as the SPUA) technology is abroad in the past decade, the high solid coatings, water-based coatings, radiation curing coatings, powder coatings, such as low (no) pollution after coating technology, in order to meet the environmental requirements and development, the development of a new type of solvent-free, pollution-free green construction technology, it is in the reaction injection molding (RIM) technology developed on the basis of, its main raw materials was developed by Texaco/Huntsman companies in the United States first end amino poly propylene oxide ether amino polyether (end), The brand name is Jeffamine. And end amino polyether, liquid amine chain extender, pigment, filler and auxiliary composition color paste (R subdivision), another group of isocyanate and oligomer diol or ternary alcohol reaction (A component). Components A and R are sprayed or cast polyurea elastomers through H series main machine and gx-7 series spray gun produced in Gusmer, USA. This technology belongs to the rapid reaction spraying system, the raw material system does not contain solvent, the curing speed is fast, the process is simple, can be very convenient in the elevation, the curved surface spraying ten millimeters thick coating without hanging. SPUA technology has broken through the limitations of traditional environmental protection coating technology. Therefore, as soon as the technology came out, it was rapidly developed.

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