ʻO ka polyethylene kahi resin thermoplastic i hana ʻia e ka polymerization o ka ethylene.ʻAʻole ʻawaʻawa, ʻaʻohe mea ʻawaʻawa, like me ka wax, ke kūpaʻa haʻahaʻa haʻahaʻa maikaʻi loa, ke kūpaʻa kemika maikaʻi, a me ke kūʻē ʻana i ka hapa nui o nā waikawa a me nā alkalis.
I ka hoʻā ʻana i ke kukui, hiki i kekahi ke nānā i kahi hanana: Ke ʻā ke kukui, kulu ia i ka aila iho i kēlā me kēia kulu.I loko o nā plastics, aia kekahi mau "kukui kukui".Me he ipukukui la kona helehelena, a me ka momona ke hoopa ia e ka lima.Ke hoʻā ʻia me ke ahi, kulu pakahi ka "ʻaila kukui" i lalo.ʻO kēia ʻano plastic, i kapa ʻia ʻo polyethylene, ʻike ʻia hoʻi ʻo "candle oil plastic," i ʻōlelo pinepine ʻia e ke code "PE", a ʻo ka pōkole kalepa o ka huahana ʻo "ethylene plastic."Hana ʻia ka polyethylene resin e ka polymerization o ka ethylene.
Nui nā mea maikaʻi o ka lole ʻāina moe: 1. Kāohi i ka ulu ʻana o nā mauʻu ma ka honua.Hiki i ka uhi honua ke pale pono i ka malamalama o ka lā mai ka ʻā ʻana o ka lā ma luna o ka honua, ʻoiai ʻo ka pale mauʻu ponoʻī ka ikaika a hiki ke pale pono i ka ulu ʻana o ka mauʻu.2. E hoʻoikaika i ka wai o ka ʻili.Me kona mau hiʻohiʻona ponoʻī, hiki i ka lole ʻāina ke wehe pono i ka wai mai ka lepo, mālama i ka permeability o ka ʻāina, a maʻalahi i ka ulu ʻana o nā aʻa mea kanu.3. Hiki i ka pale nāhelehele maikaʻi ke pale i ka ulu hou ʻana o nā aʻa a hoʻomaikaʻi i ka maikaʻi o nā mea kanu.4. Hoʻoulu a mālama pono i nā mea kanu.ʻOiai e waiho ana i ka moena weed control fabric, hiki iā ia ke hoʻokele pono i ka ʻaoʻao o ka ʻāina, e ʻoi aku ka hanu a ʻoi aku ka maikaʻi o ka ulu ʻana o ka mea kanu.
Ka manawa kau: Apr-03-2023