Kaʻina hana a me ka mōʻaukala ʻo Plastics

Pākīpikaua hana ʻia me nā polymers, akā ʻo kekahi mau polymers e like me nā biopolymers ʻaʻole nā ​​plastics.Hoʻohana ʻia nā mea palaki i kēlā me kēia lā e like me ka lolouila, peni, kelepona paʻa, nā diski compact, pendrive, a me nā pulupulu niho etc.ʻO ka haku mele ʻana o nā plastics me nā kaulahao kalapona, oxygen, sulfur a i ʻole nitrogen.

Moʻolelo o nā plastics

I ka makahiki 1284, ua ʻike ʻia nā pūhui plastik i hana maoli ʻia mai ka pū a me ka ʻōhukukū 1820 ka laina manawa plastikI ka makahiki 1823, ua ʻike ʻo Charles Macintosh ke kāmeka Scottish i ka lāʻau. , Londoner Alexander Parkes unveiled mua kanaka-hana Parkesine plastic compoundIn 1869, John W. Hyatt invented Celluloid [colorless flammable material] In 1872, Hyatt brothers patented first plastics injection molding machineIn 1880 cellulose nitrate replacing horn as the preferred material for combsIn 188. ʻO Eastman Kodak nā mīkini patent no ka hana ʻana i nā kiʻi kiʻi mau ma muli o ka cellulose nitrate. Ua hana mua ʻo Rolls Royce e hoʻohana i ka phenol formaldehyde i loko o kāna kaʻa i loko o ka hale kaʻa. e 3M huiMa 1933, ua ʻike ʻo Fawcett lāua ʻo Gibson i ka polyethylene materialIn 1938, hana ʻia ka pulupulu niho mua me nā tufts nylons. I ka makahiki 1939, i kēia makahiki i hana ʻia ka nylon. Ma 1942, ua ʻike ʻo Dr Harry Coover iā Super Glue (methyl cyanoacrylate). styrene (ABS). I ka makahiki 1949, ua hana ʻia nā mea Tupperware mai ka polyethylene haʻahaʻa haʻahaʻa. Toy Fair. I ka makahiki 1965, ua hoʻokuʻu ʻia ʻo DuPont i nā huahana me ka inoa kālepa ʻo Kevlar. I ka makahiki 1973, ua hoʻokomo ʻia nā hue inu Polyethylene terephthalate. system] i hoʻokumu ʻia i ka 2005 i kēia makahiki ʻimi ʻo NASA i nā pono o ka polyethylene based material RFX1 [RFX1 i hoʻohana ʻia no ke kūkulu ʻana i ka mokuahi] I ka makahiki 2011, vinylplus - hoʻokumu ʻia ka papahana hoʻomau i ka makahiki 2012 PVC i hoʻohana ʻia i ke kūkulu ʻana i nā wahi 'Olumepika ʻo London2020 PVC huahana huahana e hiki i 800,000. i kēlā me kēia makahiki2022 i kēia makahiki ke hoʻolālā nei ka FIFA World Cup Qatar showcase stadium e hoʻohana i ka super reflective, triangulated lole PVC e hana i kahi kalapona ʻole.

Ke kaʻina hana o nā plastics

Ka hoʻomākaukau ʻana i nā mea maka Ka hoʻomākaukau ʻana i ke kaʻina monomerPolymerization Ka hoʻololi ʻana o nā resins polymer i nā huahana plastik

I ke kaʻina hana o ka hoʻololi ʻana i nā resins polymer i ka huahana plastik e pili ana i nā hana

ExtrusionInjection moldingBlow moldingRotational molding