PVC Stretch Fabric siam dan
PVC stretch fabric (Polyvinyl Chloride Stretch Fabric) hi polyvinyl chloride (PVC) atanga siam a nih ber chu specialized process hmanga siam a ni. Puan in, advertisement puan, raincoat, leh awnings ang chiah hian hman a ni nasa hle. A siam chhuahnaah hian step pawimawh tam tak a awm a, chung zingah chuan raw material proportioning, mixing, plasticization, stretching, leh post-processing te pawh a tel. Thil siam zawh tawh chu a thawh that theih nan process parameters khauh taka control a ngai a ni.
Raw Materials leh Pretreatment te a ni
PVC stretch fabric atana raw material ber chu polyvinyl chloride resin a ni a, a tlangpuiin suspension emaw emulsion PVC emaw, molecular weight hniam tak leh thermal stability tha tak nei a ni. A flexibility, weather resistance leh processing property tihchangtlun nan additive hrang hrang dah belh a ni a, chung zingah chuan plasticizers (phthalates ang chi), stabilizers (calcium-zinc complex stabilizers ang chi), lubricants (stearic acid ang chi), fillers (calcium carbonate ang chi), leh UV stabilizers te pawh a tel. Heng additives te hi PVC resin nen hian a zat tur bik takin uluk taka pawlh a ngai a, chutiang chuan uniform dispersion a awm theih nan.
Mixing leh Plasticization hmanga siam a ni
Raw material mixing hi PVC stretch fabric siamna atana thil pawimawh tak a ni. A hmasa berin PVC resin leh additive hrang hrangte chu a siam ratio angin high-speed mixer-ah dah a ni. Plasticizer chu PVC particles te chu a luh kim theih nan 80-120℃ah minute 10-20 chhung stir a ni a, uniform dry blend a siam thei a ni. Chumi hnuah dry blend chu plasticization atan internal mixer emaw twin-screw extruder emaw ah a lut leh thin. Heat leh shear hmangin PVC chu uniform melt ah a melt a. Plasticization temperature hi a tlangpuiin 160-190℃inkar a control thin a ni . Temperature sang lutuk hian PVC a ti chhe thei a, temperature hniam lutuk chuan fluidity a nghawng thei thung.
Stretching tih hi a ni
Plasticized PVC melt hi calendering emaw blow molding emaw hmangin base fabric-ah siam theih a ni. Calendering hian multi-roll calender hmangin melt chu film te tak teah press a, chu chu base material (knitted emaw non{2}}woven fabric ang chi)-ah laminate a, a lum a, composite fabric siam a ni. Stretching hi PVC stretch fabric flexibility leh ductility tihpunna atana thil pawimawh tak a ni. Base fabric hi a tlangpuiin heating (80-120℃) hnuaiah longitudinal emaw transverse emaw-in a inzawm khawm a, a tlangpuiin vawi 2-3 vel a inzawm thin. Stretching hnuah chuan material chu heat-setting process a paltlang a, chu chuan molecular chain orientation a fix a, shrinkage a veng bawk.
Post-Processing leh Performance Tichangtlung
PVC stretch fabric siam zawh tawh chu cooling, winding, leh surface treatment (release agent hmanga coating emaw printing emaw ang chi) a ni. Weather resistance tihchak nan thil thenkhat chu acrylic emaw polyurethane emaw ang chi coating hmanga khuh an ni. Chubakah, quality testing khauh tak (tensile strength, tear strength, leh temperature resistance testing ang chi) hian product chu application standard a tlin tih a tichiang bawk.
PVC stretch fabric synthesis method hian high-performance material a ti thei a, chu chuan raw material ratio, processing temperature, leh mechanical action te chiang taka control-in flexibility, water resistance, leh durability te a thlunzawm a, a tawpah chuan industrial mamawh hrang hrang a phuhruk thei a ni.