ʻO nā hiʻohiʻona nui a me ke ʻano molekala o nā Plastics

ʻO nā waiwai like ʻole o nā plastics e hoʻoholo i kona hoʻohana ʻana i ka ʻoihana.Me ka holomua o ka ʻenehana, ʻaʻole i pau ka noiʻi ʻana i ka hoʻololi ʻana i ka plastic.He aha nā hiʻohiʻona nui o nā plastic?
1. ʻO ka hapa nui o nā plastics he māmā i ke kaumaha, paʻa kemika, ʻaʻole e popo;
2. Ke kū'ē i ka hopena maikaʻi;
3. Loaʻa iā ia ka māliko maikaʻi a me ke kūʻē ʻana;
4. ʻO ka insulation maikaʻi a me ka conductivity thermal haʻahaʻa;
5. He maikaʻi ka formability maʻamau a me ka waihoʻoluʻu, a he haʻahaʻa ke kumukūʻai hana;
6. ʻO ka hapa nui o nā plastics he maikaʻi ʻole ka wela, ke kiʻekiʻe o ka hoʻonui ʻana i ka wela a maʻalahi ke puhi;
7. Poor dimensional paʻa a maʻalahi e deform;
8. ʻO ka hapa nui o nā plastics he haʻahaʻa haʻahaʻa haʻahaʻa kūʻē, lilo i palupalu i ka wela haʻahaʻa a maʻalahi hoʻi i ka makahiki;
9. Hiki ke hoʻoheheʻe ʻia kekahi mau plastics i loko o nā mea hoʻoheheʻe.
10. Hiki ke hoʻokaʻawale ʻia nā plastik i ʻelua mau ʻāpana: thermosetting a me thermoplastic.ʻAʻole hiki ke hana hou ʻia ka mea mua no ka hoʻohana ʻana, a hiki ke hana hou ʻia ka mea hope.Loaʻa i ka Thermoplasticity kahi elongation kino nui, maʻamau 50% a 500%.ʻAʻole ʻokoʻa loa ka ikaika ma nā elongation like ʻole.

ʻElua ʻano ʻano molekala o nā plastics: ʻo ka mua he ʻano laina laina, a ʻo ka hui polymer me kēia ʻano i kapa ʻia he hui polymer linear;ʻO ka lua he hale kino, a ʻo ka hui polymer me kēia ʻano i kapa ʻia he hui.He hui polimer nui.ʻO kekahi mau polymers he mau kaulahao lālā, i kapa ʻia nā polymers lālā, nona ka hale laina.ʻOiai ua loaʻa i kekahi mau polymers nā loulou keʻa ma waena o nā molekala, akā ʻo nā loulou liʻiliʻi liʻiliʻi, i kapa ʻia ʻo ka ʻōnaehana pūnaewele, no ke kino.
ʻElua mau hale ʻokoʻa, e hōʻike ana i ʻelua mau waiwai kūʻē.ʻO ka laina laina, hiki ke hoʻoheheʻe ʻia ka hoʻoheheʻe ʻana, ka liʻiliʻi o ka paʻakikī a me ka brittleness.ʻOi aku ka paʻakikī a me ka brittleness o ke kino.ʻElua mau ʻano polymers i nā plastik, nā thermoplastics i hana ʻia me nā polymers linear, a me nā plastik thermosetting i hana ʻia me nā polymers nui.