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Multifunctional Polyester Film
Aug 06, 2017

               A multifunctional polyester film preparation method, the polyester film has a three-layer coextrusion structure, which is characterized in that the base film core polyester material, the surface polyester material on the substrate and the substrate surface polyester materials are all used by transesterification method; The base film core layer polyester substrate surface raw materials and substrates under the surface layer of raw materials, through the vacuum drum pre-crystallization, heating and drying into a single screw extruder, under the 270#280℃ melt extrusion, extruded melt extrusion through the pre-filter, metering pump, the main filter, Entering the membrane head; using two-way tensile three-layer coextrusion equipment, the base film core polyester material, the surface polyester material on the substrate and the polyester raw material under the substrate are combined together to squeeze the formation after the film head, after cooling the 10~40℃ quench roll, and then by 60~100℃ Preheating, the tensile multiple is set to $number, longitudinal stretching, 70~130℃ preheating, tensile multiple set to 2.5 ~ 5.5, transverse stretching; then after cooling, electrostatic elimination, rewinding and slitting, A multifunctional polyester film with a thickness of 16um~100um, which:

             (a) the preparation of the base film core polyester material, including the following steps: (1) According to the weight of the name: ① 1~30, ② deionized water $number portion, ③ vanadium oxide $number, ④ ammonia 5~150; In the glass jar into the ①② mixed stirring fully dissolved and then put into the ③④, then mixed stirring after the static precipitation, extraction of the upper liquid, the vanadium dioxide and the mixed sediments of tin hydroxide; (2) According to weight: ① vanadium dioxide and tin hydroxide mixed sediments $number part , ② tungsten oxide $number, ③ deionized water 60~120, ④ dispersant $number, dispersant for nn# two methyl alcohol amine, $number amino #2# methyl #1# propanol or triethylamine; put ①②③④ into high temperature and high pressure reactor, heated to 210#230℃, constant stirring, reaction 12#20 hours after the cessation of heating, after cooling out the high-pressure reaction kettle, and then through the filter to obtain tin-tungsten vanadium pressure filter cake; (3) The tin-tungsten vanadium filter cake is loaded into the zirconia tray in the drying chamber, the 90#110℃ drying 18#30 hour, and then the dry filter cake is loaded into the oxidation cerium tray and the 490#510℃ sintering 10#14 Hour, the tin-tungsten vanadium nano powders with a particle diameter less than 20nm were obtained. (4) According to the Weight percent content: ① particle size is less than 20nm of tin-tungsten Nano powder $number, ② Catalyst $number, catalyst for cobalt acetate powder, ③ dispersant 0.5 ~ 1, The dispersant is sodium pyrophosphate, ④ glycol 84~96.5 copies, the ①②③④ is put into the abrasive dispersing machine, and the glycol-tungsten-vanadium nano slurry containing cobalt acetate is obtained. (5) According to the percentage of weight, respectively: ① $number, ② containing cobalt acetate glycol-based tin-tungsten vanadium nano slurry 30~50%; add ①② to the reactor in order to stir and heat, ester exchange reaction, reaction temperature 150~240℃, reaction time 3~6h, Two ester was produced by Transesterification, and the polyester raw material was obtained by condensation of two ester of terephthalic acid.Polyester Film

                 (ii) Preparation of surface-layer polyester materials on the substrate, including the following steps: (1) According to weight percentage: ① nitrate silver 1~10%, ② deionized water 1~10%, ③2, ~ pyridine 1~10%, ④ glycol 69~96.9%, ⑤ triethanolamine 0.1~1%; add ①②③④⑤ once to the reactor with agitator, rotate speed 20#40 turn/min, heating temperature 80#90℃, heat stirring 45#51 hour, connect vacuum pump to rotate evaporator mode , 75#85℃ heating vacuum stirring method to remove water, obtain transparent glycol-based silver solution; (2) According to weight percentage: ① to dimethyl ester $number, ② glycol-based silver solution 30~50%; Adding to the reactor, stirring and heating, ester exchange reaction, reaction temperature 150~240℃, reaction time 3~6h, ester exchange to produce terephthalic acid ethyl two ester, and by the condensation of terephthalic acid ethyl two ester to obtain the surface layer polyester raw material;Polyester Film

                 (iii) The preparation of surface-layer polyester raw materials, including the following steps: (1) According to weight percentage: ① nitrate europium 1~10%, ② deionized water 1~10%, ③4, ~ pyridine 1~10%, ④ glycol 69~96.9%, ⑤ triethanolamine 0.1~1%; add ①②③④⑤ once to the reactor with agitator, rotate speed 30#40 turn/min, heating temperature 85#95℃, heat stirring 30#42 hour, connect vacuum pump to rotate evaporator mode , the 75#85℃ heating vacuum stirring method is used to remove water and obtain transparent ethylene glycol-based europium solution; (2) by weight percentage: ① $number, ② glycol-based europium solution 30~50%; ①② into the reactor in the heat stirring, reaction temperature 150~240℃, reaction time 3~6h, after the ester exchange to produce two ester, and by the condensation of two ester of terephthalic acid ethyl surface polyester raw materials.Polyester Film