Stretch Film hi polymer material a ni a, logistics packaging-ah pawh hman a ni nasa hle. A synthesis process hian direct takin product performance leh market competitiveness a nghawng a ni. Environment humhalhna atana thil tul leh packaging mamawh hrang hrang siam a nih tak avangin stretch film-a synthesis technology pawh hian thil thar a siam chhuak zel bawk. He thuziak hian stretch film-a core synthesis method chu raw material thlan dan, polymerization process atanga film forming technology thlengin kimchang takin a zirchiang dawn a ni.
Raw Material thlan dan: Foundation hian performance a tichiang a ni.
Stretch film-a raw material ber chu polyethylene (PE) a ni. A tum dan azirin low-density polyethylene (LDPE), linear low-density polyethylene (LDDPE) emaw high-density polyethylene (HDPE) emaw thlan theih a ni. LDPE hian film hi flexibility leh transparency tha tak a pe a, LLDPE hian tensile strength leh puncture resistance nasa takin a ti tha thei bawk. Tun hnaiah environment friendly metallocene polyethylene (MPE) chu a molecular structure inang tlang zawk leh processing performance tha tak a neih avangin high-end stretch film atana raw material duh ber a ni zauh zauh a. Chu bakah, mamawh bik phuhruk nan product thenkhat chuan tackifier, UV inhibitor emaw antioxidants emaw ang chi additives an dah belh dawn a ni.
Polymerization kalpui dan: monomer atanga polymer thleng .
Polyethylene siam dan hi ethylene polymerization reaction hmanga tihhlawhtlin a ni ber. Thil kalphung tlangpuiah chuan -pressure polymerization leh low-pressure polymerization te hi a ni. High-pressure polymerization (tubular method emaw kettle method emaw ang chi) hi LDPE siamna atan a tha hle. Reaction conditions te hi a harsa a, free radical polymerization hi temperature sang leh pressure sang tak hnuaiah a ngai a ni. Low-pressure polymerization (Gas Phase Method emaw Solution Method emaw ang chi) hmangin LLDPE leh HDPE siam a ni. Ziegler-Natta catalyst emaw metallocene catalyst emaw hman a ni tlangpui. Reaction conditions a na lo hle a, molecular weight distribution pawh control theih a ni. Tunlai thil kalphung hian gas-phase fluidized bed technology hmangin production efficiency a ti tha zawk a, energy hman a ti tlem zawk thin.
Film Forming Technology: Blow molding leh cast film inkara game khelh dan
Wrapping film siam dan hi a bik takin process pahnih a innghat a, chungte chu blow molding leh cast film te an ni. Blow molding method hian molten resin chu annular die head hmangin tubular film-ah a puak a, chutah chuan a ti lum a, a pull a, a reel leh a ni. Hetiang method hi a hniam-cost leh large -scale production atan a tha a, mahse film thickness uniformity erawh a hniam deuh thung. Cast film method hmang hian flat die head hmangin direct-in film hi extrude a ni a, hei hi cooling roller hmanga siam nghal vat a ni. Finished product hian uniform thickness leh transparency sang zawk a nei a, mahse equipment investment a tam hle thung. Tun hnaiah multi-Layer Co-extrusion technology chu mainstream a ni ta a ni. Property hrang hrang nei resin layer superimpose hmang hian strength sang, transparency sang leh viscosity tha tak chu a rualin a thleng thei a ni.
Environment humhalhna kalphung: a chhe thei a, a recycle theih bawk.
Global Environmental Regulations tihkhauh a nih tak avangin stretch film-a synthesis technology chuan degradability leh easy recycling lam a pan mek a ni. Bio-based polyethylene (sugarcane ethanol atanga siam PE ang chi) leh degradable additives te hmanna hian traditional petrochemical raw materials a thlak zauh zauh mek a ni. Chutih rual chuan, synthesis process optimize-a volatile organic compound (VOCs) emission tihtlem chu industry ngaihvenna ngaih pawimawh ber a ni bawk.
Stretch film-a synthesis technology hian polymer chemistry, materials engineering leh environmental science lama field hrang hrang hmasawnna a huam a ni. Nakin lawkah chuan catalyst thar leh green process te a lo than chhoh zel avangin stretch film performance leh sustainability te pawh a tha lehzual dawn a, hei hian global packaging industry tan solution tha zawk a pe dawn a ni.