huahana

polyethylene haʻahaʻa haʻahaʻa,
Hoʻohana ʻia ka polyethylene haʻahaʻa no ke kiʻiʻoniʻoni,

ʻO ka polyethylene haʻahaʻa haʻahaʻa (LDPE) he resin synthetic e hoʻohana ana i ke kaʻina hana kaomi kiʻekiʻe ma o ka polymerization radical manuahi o ka ethylene a no laila ua kapa ʻia ʻo ia he "polyethylene high-pressure".ʻO ka polyethylene puʻupuʻu haʻahaʻa ʻole, ʻono ʻole, nā ʻāpana keʻokeʻo ʻona ʻole a i ʻole ka pauka.He 131 ℃ ka helu hehee.Māmā 0.910-0.925 g/cm³.He 120-125 ℃ ke kiko palupalu.Embrittlement wela -70 ℃.ʻO ka mahana hana kiʻekiʻe 100 ℃.Me ke kūpaʻa wela maikaʻi, ke kūpaʻa anu, ke kūpaʻa ʻaʻahu a me nā waiwai dielectric, kūpaʻa kemika.ʻAneʻane hiki ʻole ke hoʻoheheʻe ʻia i loko o kekahi mea hoʻoheheʻe organik ma ka lumi wela.Hiki ke pale aku i ka ʻino o nā ʻakika like ʻole a me ka alkali a me nā ʻano paʻakai like ʻole.Hoʻohana nui ʻia ka polyethylene haʻahaʻa haʻahaʻa i nā lāʻau lapaʻau a me nā ʻoihana kemika e hana i nā huahana hollow, e like me nā barela, nā hue a me nā pahu mālama.Hoʻohana ka ʻoihana meaʻai iā ia e hana i nā pahu pahu.Hoʻohana ʻia ka ʻoihana mīkini e hana i nā uhi, nā lima, nā huila lima a me nā ʻāpana mīkini maʻamau, a hoʻohana ʻia ka ʻoihana pepa e hana i ka pepa synthetic.

Hiʻona

Palapala noi

ʻO LDPE (2102TN000) kahi mea kiʻi kiʻi extrusion maikaʻi loa, kūpono loa no ka hana ʻana i ke kiʻi ʻoniʻoni kaumaha, kiʻi ʻoniʻoni, kiʻi ʻoniʻoni wela wela a pēlā aku.

Nā ʻāpana

Pūʻolo, Waihona a me ka lawe ʻana

Hoʻopili ʻia ka resin i loko o nā ʻeke ulana polypropylene i uhi ʻia i loko.ʻO ka paona ʻupena he 25Kg / ʻeke.Pono e mālama ʻia ka resin i loko o kahi waihona maloʻo a maloʻo a mamao i ke ahi a me ka lā pololei.ʻAʻole pono e hoʻahu ʻia ma ka lewa ākea.I ka wā o ka lawe ʻana, ʻaʻole pono e ʻike ʻia ka huahana i ka lā ikaika a i ʻole ka ua a ʻaʻole pono e lawe pū ʻia me ke one, lepo, metala ʻōpala, lanahu a i ʻole aniani.ʻAʻole loa e pāpā ʻia ka lawe ʻana me nā mea ʻawaʻawa, corrosive a me ke ahi.

Hōʻike ʻia ka polyethylene haʻahaʻa haʻahaʻa, a i ʻole LDPE, e nā kaulahao lālā nui me ka lālā maʻamau, lōʻihi.He mānoanoa ko LDPE mai .910 a i .935 grams no ke kenimika cubic (g/cc).

I kona hoʻohana ʻana i nā kiʻiʻoniʻoni plastik, hāʻawi nā resins LDPE i ka paʻakikī, hiki ke maʻalahi, optics, a me ka permeability.ʻOiai ʻaʻole ikaika e like me nā resins LLDPE, hāʻawi ʻo LDPE i nā waiwai hōʻemi maikaʻi loa.