ʻO ka mea maka o ka plastic he resin synthetic, ka mea i unuhi ʻia a synthesized mai ka petroleum, ke kinoea maoli a i ʻole ka lanahu.ʻO ka aila, ke kinoea maoli, a me nā mea ʻē aʻe, ua hoʻoheheʻe ʻia i loko o nā pūhui organik haʻahaʻa (e like me ka ethylene, propylene, styrene, ethylene, vinyl alcohol, a me nā mea ʻē aʻe), a ua polymerized nā pūhui haʻahaʻa haʻahaʻa i loko o nā pūhui organik molecular kiʻekiʻe ma lalo o kekahi mau kūlana. , a laila hiki ke hana ʻia nā plasticizers, Lubricants, fillers, etc.ʻO ka maʻamau, ua hana ʻia nā resins i loko o nā granule no ka maʻalahi o ka hoʻohana.Hoʻopili pinepine ʻia lākou i nā mea hana me kekahi mau ʻano ma lalo o nā kūlana hoʻomehana a me ke kaomi.
Nā waiwai kino o nā plastic.Nui nā ʻano waiwai kino o ka plastic, eia nā mea pono e hoʻomaopopo ʻia no ke aʻo ʻana i ka ʻenehana toning:
1. ʻAno pili: ʻO ka pānaʻi pili ka lakio o ke kaumaha o ka hāpana me ke kaumaha o ka nui like o ka wai ma kahi mahana, a he ala nui ia e ʻike ai i nā mea maka.
2. Ka nui o ka hoʻoheheʻe ʻana o ka wai: Ua hana ʻia ka mea palaka i loko o kahi laʻana o ka nui i ʻōlelo ʻia, i hoʻopaʻa ʻia i loko o ka wai i hoʻoheheʻe ʻia me ka mahana o (25±2) ℃, a me ka lakio o ka nui o ka wai i komo ʻia e ka hāpana i ka mea maka. ma hope o 24 hola.ʻO ka nui o ka hoʻomoʻa wai e hoʻoholo inā pono e kālua ʻia ka mea palaka a me ka lōʻihi o ka manawa kuke.
3. Molding wela: ʻO ka mahana hoʻoheheʻe e pili ana i ka mahana heheʻe o ka resin raw material
4. Ka wela decomposition: ʻO ka mahana decomposition e pili ana i ka mahana i haki ai ke kaulahao macromolecular o ka plastic i ka wā i wela ai, a ʻo ia kekahi o nā hōʻailona no ka ʻike ʻana i ke kūpaʻa wela o ka plastic.Ke ʻoi aku ka mahana o ka hoʻoheheʻe ʻana ma mua o ka wela decomposition, ʻo ka hapa nui o nā mea maka e huli melemele, ʻeleʻele a ʻeleʻele hoʻi, a e hoʻemi nui ʻia ka ikaika o ka huahana.
Ka manawa hoʻouna: Iune-13-2022