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Oil pressure sensitive adhesive and water-based pressure-sensitive adhesive PE protective film

by:LINYANG     2020-03-11
PE adhesive protective film is very widely used protective film packaging and product maintenance protective film, PE protective film with glue can stick to the product surface, and surface protective film. Pressure sensitive adhesive were often used in oil and water, under normal circumstances, oil glue is suitable for the vast number of products, the basic water glue used on table more ceramic tile floor. Oily coating pressure sensitive adhesives ( Oil glue) ( 1) Raw materials and formula ratio of material/quality ratio of material/quality of acrylic 2 ethyl caproic ester ( 2 eha) 8 ~ 10 acrylic ( AA) A moderate amount of N - Hydroxymethyl acrylamide ( N— MAM) 3 ~ 5 butyl acrylate ( BA) 50 ~ 57 vinyl acetate ( VAc) 10 ~ 12 second benzoyl peroxide ( BPO) O. 1~O. 5 b hydroxyl ethyl acrylate ( 他叫) 2 ~ 3 a 2 hydroxypropyl acrylate ( HPA) A moderate amount of mixed solvent (200 2) Preparation methods in a blender, reflux condenser, thermometer, feed flow meter, add equipment, stainless steel reaction kettle of the compressor, to join the formula ratio of mixed solvent, heating to 70 ~ 75 ℃, according to the formula weighing monomer in another container, blend to add BPO dissolved completely, to add a third of the mixed monomer in the kettle, allowance to join high drop device, stirring and heating up to trace back, stop heating, by reaction heat continue to back, when flow gradually hours, about 77 ℃ began to drop and monomer, dropping speed control and the reaction temperature, prevent spamming, keep back to normal, maintain stable reaction kettle, increasing viscosity, 4 ~ 5 h add finished, and then heating to 80 ~ 82 ℃, the reaction can be appropriately adding a little after 1 h BPO driving response completely. When the viscosity stability, yellow viscous liquid, cooled to 40 ℃ the finished part A. 20% of the group B is divided into isocyanate chlorobenzene solution. Part A: part B = 1: ( 0. 5~O. 8) 。 ( 3) Oil pressure sensitive adhesive performance with appropriate initial adhesion force, stripping force and the adhesion force, suitable for a variety of protected material surface protection glue stick with production, has good practical value and has quick drying speed, the characteristics of the coating and convenient, meet the requirements of protective film performance. ( 4) Application of oily pressure-sensitive adhesives can be used in instruments and meters, color steel plate, aluminum, plastic doors and Windows, advanced spray surface protection, such as is a new kind of special surface protection pressure-sensitive materials. Aqueous protective film pressure sensitive adhesives ( Water glue) ( 1) Raw materials and formula ratio of material/quality ratio of material/quality of acrylic 2 ethyl caproic ester ( 2 eha) 10 ~ 15 methyl acrylic glycidyl ester 2 ~ 3 deionized water 200 butyl acrylate ( BA) Ammonium persulfate 0 65 ~ 70. 3 to 0. 5 acrylonitrile ( AN) 1 5 ~ 20 composite emulsifier 3 acrylic ( AA) 3 ~ 5 pH regulator 0. 5 ~ 1 ( 2) Preparation methods in a blender, reflux condenser, thermometer, add equipment, stainless steel reaction kettle feeding device, first add deionized water, emulsifying agent and pH regulator, began stirring and heating up to about 75 ℃, and then mixed with 30% of the monomer, monomer drop allowance to join high added device. Adding ammonium persulfate to dissolve in water and add 20% of the initiator, reflux reaction about 1 h after normal, reflux, less began to drop and monomer and every 15 min adding quantitative initiator, the emulsion polymerization reaction at 80 ℃ or so smoothly, stirring speed, reaction temperature, dropping speed control and reaction time, to prevent violence, about 4 h drops out, up to 85 ℃, adding a small amount of ammonium persulfate, the reaction completely, finally cooled to 50 ~ C, ammonia adjust pH value of 7. 2 ~ 8. 5, the reaction finished. ( 3) Performance at the beginning of the water-borne pressure sensitive adhesive is suitable adhesion force, stripping force and the adhesion force, suitable for a variety of protected material surface protection glue stick with cow, has good practical value and has quick drying speed, coating is convenient, the characteristics of protective coatings to meet the performance requirements. ( 4) Application of water-based pressure-sensitive adhesive can be used in instruments and meters, color steel plate, aluminum, plastic doors and Windows, advanced spray surface protection, such as, is a new kind of special surface protection pressure-sensitive materials.
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