Novel UV (ultraviolet) coating for PET (polyethylene terephthalate) base material

Abstract

The invention discloses a novel UV (ultraviolet) coating for a PET (polyethylene terephthalate) base material. The novel UV coating is prepared from the following components by weight percent: 5 to 10 percent of polyurethane modified acrylate oligomer, 18 to 25 percent of trimethylolpropane triacrylate, 5 to 10 percent of alpha-hydroxycyclohexyl phenyl ketone, 10 to 15 percent of functional acrylic resin, 15 to 25 percent of ethyl acetate, 10 to 15 percent of cyclohexanone and 30 to 40 percent of adhesive force accelerant.

Description

technical field

[0001] The invention relates to coatings, in particular to a novel UV coating for PET substrates. Background technique

[0002] UV coating is a general term for all ultraviolet radiation curable coatings. Its film-forming method is that ultraviolet radiation triggers unsaturated double bond open-chain polymerization and quickly dries into a film. That is to say, it has excellent fullness, good adhesion and high gloss.

[0003] Compared with the widely used ABS material (acrylonitrile-butadiene-styrene copolymer), PET material (polyethylene terephthalate chemical formula is -OCH2-CH2OCOC6H4CO-), due to its wide temperature range It has excellent physical and mechanical properties within the range, and the long-term use temperature can reach 120°C. It has excellent electrical insulation, creep resistance, fatigue resistance, friction resistance, and dimensional stability, and is not easy to decompose. It has been widely used in the field of food packaging. H...

Examples

Embodiment 1

[0020] The present invention is used for a kind of novel UV paint of PET base material, and described paint is made up of the following components by weight percentage: Polyurethane modified acrylic acid oligomer 8%, trimethylol propane triacrylate 22%, α-hydroxyl Cyclohexyl benzophenone 8%, acrylic functional resin 13%, ethyl acetate 17%, cyclohexanone 13%, adhesion promoter 37%. The adhesion promoter includes epoxy acrylic resin, polyester resin and silane coupling agent, wherein the polyester resin is acrylated polyester or chlorinated acrylic polyester resin.

[0021] After preparing the polyurethane modified acrylic oligomer and trimethylolpropane triacrylate in proportion in turn, stir in the disperser at a speed of 600-800rpm for 20-25 minutes to disperse into a homogeneous mixture A; then mix the acrylic functional Resin, α-hydroxycyclohexyl benzophenone, ethyl acetate, cyclohexanone, and adhesion promoter are mixed in proportion, added to mixture A under dark conditio...

Embodiment 2

[0023] A kind of novel UV coating that the present invention is used for PET base material is made up of the following components by weight percentage: polyurethane modified acrylic acid oligomer 4%, trimethylol propane triacrylate 10%, α-hydroxycyclohexyl Benzophenone 4%, Acrylic Functional Resin 6%, Ethyl Acetate 9%, Cyclohexanone 5%, Adhesion Promoter 20%. The adhesion promoter includes epoxy acrylic resin, polyester resin and silane coupling agent, wherein the polyester resin is acrylated polyester or chlorinated acrylic polyester resin.

[0024] After preparing the polyurethane modified acrylic oligomer and trimethylolpropane triacrylate in proportion in turn, stir in the disperser at a speed of 600-800rpm for 20-25 minutes to disperse into a homogeneous mixture A; then mix the acrylic functional Resin, α-hydroxycyclohexyl benzophenone, ethyl acetate, cyclohexanone, and adhesion promoter are mixed in proportion, added to mixture A under dark conditions, and stirred at a s...

Embodiment 3

[0026] A kind of novel UV coating that the present invention is used for PET base material is made up of the following components by weight percentage: polyurethane modified acrylic acid oligomer 14%, trimethylol propane triacrylate 30%, α-hydroxycyclohexyl Benzophenone 15%, acrylic functional resin 20%, ethyl acetate 30%, cyclohexanone 20%, adhesion promoter 55%. The adhesion promoter includes epoxy acrylic resin, polyester resin and silane coupling agent, wherein the polyester resin is acrylated polyester or chlorinated acrylic polyester resin.

[0027] After preparing the polyurethane modified acrylic oligomer and trimethylolpropane triacrylate in proportion in turn, stir in the disperser at a speed of 600-800rpm for 20-25 minutes to disperse into a homogeneous mixture A; then mix the acrylic functional Resin, α-hydroxycyclohexyl benzophenone, ethyl acetate, cyclohexanone, and adhesion promoter are mixed in proportion, added to mixture A under dark conditions, and stirred a...

technical field

[0001] The invention relates to coatings, in particular to a novel UV coating for PET substrates. Background technique

[0002] UV coating is a general term for all ultraviolet radiation curable coatings. Its film-forming method is that ultraviolet radiation triggers unsaturated double bond open-chain polymerization and quickly dries into a film. That is to say, it has excellent fullness, good adhesion and high gloss.

[0003] Compared with the widely used ABS material (acrylonitrile-butadiene-styrene copolymer), PET material (polyethylene terephthalate chemical formula is -OCH2-CH2OCOC6H4CO-), due to its wide temperature range It has excellent physical and mechanical properties within the range, and the long-term use temperature can reach 120°C. It has excellent electrical insulation, creep resistance, fatigue resistance, friction resistance, and dimensional stability, and is not easy to decompose. It has been widely used in the field of food packaging. H...

Examples

Embodiment 1

[0020] The present invention is used for a kind of novel UV paint of PET base material, and described paint is made up of the following components by weight percentage: Polyurethane modified acrylic acid oligomer 8%, trimethylol propane triacrylate 22%, α-hydroxyl Cyclohexyl benzophenone 8%, acrylic functional resin 13%, ethyl acetate 17%, cyclohexanone 13%, adhesion promoter 37%. The adhesion promoter includes epoxy acrylic resin, polyester resin and silane coupling agent, wherein the polyester resin is acrylated polyester or chlorinated acrylic polyester resin.

[0021] After preparing the polyurethane modified acrylic oligomer and trimethylolpropane triacrylate in proportion in turn, stir in the disperser at a speed of 600-800rpm for 20-25 minutes to disperse into a homogeneous mixture A; then mix the acrylic functional Resin, α-hydroxycyclohexyl benzophenone, ethyl acetate, cyclohexanone, and adhesion promoter are mixed in proportion, added to mixture A under dark conditio...

Embodiment 2

[0023] A kind of novel UV coating that the present invention is used for PET base material is made up of the following components by weight percentage: polyurethane modified acrylic acid oligomer 4%, trimethylol propane triacrylate 10%, α-hydroxycyclohexyl Benzophenone 4%, Acrylic Functional Resin 6%, Ethyl Acetate 9%, Cyclohexanone 5%, Adhesion Promoter 20%. The adhesion promoter includes epoxy acrylic resin, polyester resin and silane coupling agent, wherein the polyester resin is acrylated polyester or chlorinated acrylic polyester resin.

[0024] After preparing the polyurethane modified acrylic oligomer and trimethylolpropane triacrylate in proportion in turn, stir in the disperser at a speed of 600-800rpm for 20-25 minutes to disperse into a homogeneous mixture A; then mix the acrylic functional Resin, α-hydroxycyclohexyl benzophenone, ethyl acetate, cyclohexanone, and adhesion promoter are mixed in proportion, added to mixture A under dark conditions, and stirred at a s...

Embodiment 3

[0026] A kind of novel UV coating that the present invention is used for PET base material is made up of the following components by weight percentage: polyurethane modified acrylic acid oligomer 14%, trimethylol propane triacrylate 30%, α-hydroxycyclohexyl Benzophenone 15%, acrylic functional resin 20%, ethyl acetate 30%, cyclohexanone 20%, adhesion promoter 55%. The adhesion promoter includes epoxy acrylic resin, polyester resin and silane coupling agent, wherein the polyester resin is acrylated polyester or chlorinated acrylic polyester resin.

[0027] After preparing the polyurethane modified acrylic oligomer and trimethylolpropane triacrylate in proportion in turn, stir in the disperser at a speed of 600-800rpm for 20-25 minutes to disperse into a homogeneous mixture A; then mix the acrylic functional Resin, α-hydroxycyclohexyl benzophenone, ethyl acetate, cyclohexanone, and adhesion promoter are mixed in proportion, added to mixture A under dark conditions, and stirred a...