01-02-2018, 04:56 AM
Polyurethane in the adhesive and both two resin characteristics This is an industrial polyurethane polyurethane film is a soft, good fastness to washing, and has good elongation and resilience, suitable for use in adhesives. Polyurethane adhesive: a polyisocyanate cool a NCO and polyester polyols, polyether polyol in an OH reaction of polymer polyurethane building a wodden terrace adhesive. Polyurethane film is a soft, good fastness to washing, and has good elongation and resilience, suitable for use in adhesives. Polyurethane adhesive: a polyisocyanate cool a NCO and polyester polyols, polyether polyol in an OH reaction of polymer polyurethane adhesive. The reaction of a NCO and a mole of OH similar.
Polyurethane obtained in the molecular weight of up to tens of thousands to hundreds of thousands. This adhesive is generally solvent-based or water-emulsion dispersion. Modified with other resins (such as epoxy resin) modified polyurethane resin modified polyurethane adhesive. This adhesive solid vinyl fence post combines the excellent properties of both resins. Polyurethane adhesives divided by the number of components into one-component polyurethane polyurethane adhesive and two-component polyurethane cool adhesive.
One-component polyurethane cool adhesive easy to use, open the package can be used. Two-component polyurethane adhesive must first mix the two components before they can use. Polyisocyanate can be used singly or in combination with rubber. Common polyisocyanates are TDI, MDI, XDI, triphenylmethane triisocyanate cool (TTI), PAPI, thiophenyl phosphoric acid triphenyl triisocyanate cool, dimethyl. Triphenylmethane tetraisocyanate, HDI dialkylene, trimethylene and TDI adducts, HDI and TDI multimers, and the like.
The prepolymer adhesive is made by reacting excess polyisocyanates with polyfunctional active hydrogen compounds. This prepolymer contains an excess of an active NCO group .In order to improve the strength of this adhesive can be added cross-linking agent. Polyols and polyamines as cross-linking agent can be obtained wpc wood dealers cross-linked polyurethane adhesive.
Polyurethane obtained in the molecular weight of up to tens of thousands to hundreds of thousands. This adhesive is generally solvent-based or water-emulsion dispersion. Modified with other resins (such as epoxy resin) modified polyurethane resin modified polyurethane adhesive. This adhesive solid vinyl fence post combines the excellent properties of both resins. Polyurethane adhesives divided by the number of components into one-component polyurethane polyurethane adhesive and two-component polyurethane cool adhesive.
One-component polyurethane cool adhesive easy to use, open the package can be used. Two-component polyurethane adhesive must first mix the two components before they can use. Polyisocyanate can be used singly or in combination with rubber. Common polyisocyanates are TDI, MDI, XDI, triphenylmethane triisocyanate cool (TTI), PAPI, thiophenyl phosphoric acid triphenyl triisocyanate cool, dimethyl. Triphenylmethane tetraisocyanate, HDI dialkylene, trimethylene and TDI adducts, HDI and TDI multimers, and the like.
The prepolymer adhesive is made by reacting excess polyisocyanates with polyfunctional active hydrogen compounds. This prepolymer contains an excess of an active NCO group .In order to improve the strength of this adhesive can be added cross-linking agent. Polyols and polyamines as cross-linking agent can be obtained wpc wood dealers cross-linked polyurethane adhesive.