Plastika Polyethylene (PE)

* ʻO ka PE he polyethylene plastic, hiki ke hana ʻia i loko o ka ʻili plastik, nā ʻeke plastik a me nā ʻāpana like ʻole. I mea e hōʻemi ai i ka haumia keʻokeʻo, hiki ke hoʻohui ʻia nā mea hoʻohaʻahaʻa i ka plastik e hoʻokō ai i ke kumu o ka hoʻohaʻahaʻa wikiwiki ʻana, ua kapa ʻia kēia ʻano polyethylene he plastics aloha kaiapuni. He māmā, paʻa, a ʻo ia kekahi o nā plastik i hana pinepine ʻia.

* Nā huahana plastik PE i hoʻopilikino ʻia a i ʻole nā ʻāpana

IKAIKA

Kū'ē i ka hopena

NĀ ʻANO UILA NUI

He aha ka PE Plastic?

ʻO ka Polyethylene i kapa ʻia ʻo PE, he resin thermoplastic i hana ʻia e ka polymerization o ka ethylene, ʻo ia ke ʻano o nā hui organik polymer maʻalahi loa, ʻo ia ka mea i hoʻohana nui ʻia ma ka honua no nā mea polymer PE polyethylene, ʻo ka polymerization o ka ethylene, e like me nā densities like ʻole i māhele ʻia i ka polyethylene kiʻekiʻe-density, polyethylene medium-density a me ka polyethylene haʻahaʻa-density.

ʻAʻohe ʻala o ka Polyethylene, ʻaʻohe mea ʻawahia, manaʻo like me ka wax, loaʻa iā ia ke kūpaʻa haʻahaʻa maikaʻi loa (ʻo ka mahana hoʻohana haʻahaʻa loa a hiki i -100 ~ -70 ° C), kūpaʻa kemika maikaʻi, hiki ke kū i ka hapa nui o nā waikawa a me nā alkalis (ʻaʻole kūpaʻa i nā waiwai oxidizing o ka waikawa). ʻAʻole hoʻoheheʻe ʻia i nā mea hoʻoheheʻe maʻamau i ka mahana o ka lumi, liʻiliʻi ka omo wai, insulation uila maikaʻi loa.

Pehea ka hana ʻana o ka PE?

Hana ʻia ka polyethylene mai ka polymerization o ka ethylene (a i ʻole ethene) monomer. Hana ʻia nā kaulahao PE ma o ka hoʻohui a i ʻole ka polymerization radical. ʻO nā ʻano hana synthesis hiki ke hana ʻia:

ʻO ka Polymerization Ziegler-Natta a me

Hoʻouluulu ʻana o ka Metallocene

He mea ʻawahia nā resins PE?

Ma ke ʻano paʻa, ua manaʻo ʻia ʻo Polyethylene he palekana a ʻaʻohe mea ʻawahia ma ke ʻano. Hiki iā lākou ke lilo i mea ʻawahia inā hanu ʻia a/a i ʻole omo ʻia e like me ka mahu a i ʻole ka wai (ʻo ia hoʻi, i ka wā o nā kaʻina hana).

He aha nā ʻano PE maʻamau?

Ma muli o kona mānoanoa a me ka lālā, hiki i nā papa PE like ʻole ke loaʻa ka hana like ʻole kekahi mai kekahi.

No laila, ua hoʻokaʻawale ʻia nā māka PE penei.

Nā Mana Lālā

ʻO ka polyethylene haʻahaʻa haʻahaʻa (LDPE)

ʻO ka polyethylene haʻahaʻa linear (LLDPE)

Nā Mana Linear

Polyethylene kiʻekiʻe-density (HDPE)

ʻO ka polyethylene kaumaha molekala kiʻekiʻe loa (UHMWPE)

ʻO ka polyethylene i hoʻopili ʻia (PEX a i ʻole XLPE)

Eia kekahi, loaʻa nā ʻano PE ʻē aʻe e like me:

ʻO ka polyethylene waena-density (MDPE)

ʻO ka polyethylene haʻahaʻa loa (ULDPE)

ʻO ka polyethylene kaumaha molekala kiʻekiʻe (HMWPE)

ʻO ka polyethylene metallocene (mPE)

ʻO ka polyethylene chlorine (CPE)

E hoʻomaka me kahi ʻōlelo kūʻai koke manuahi!

Palekana a hūnā ʻia nā hoʻouka ʻana a pau

MEA HUILA HUAHANA NĀ ALAKAʻI ʻENEKINIA

Pehea e hoʻohālikelike ai ma waena o nā ʻano PE nui?

	LDPE	LLDPE	HDPE
Inoa piha o ka Polymer	Polyethylene Density Haʻahaʻa	Polyethylene Density Haʻahaʻa Linear	Polyethylene Density Kiʻekiʻe
ʻAno	Kiʻekiʻe ke kiʻekiʻe o ke kaulahao pōkole lālā + kaulahao lōʻihi lālā	Kiʻekiʻe ke kiʻekiʻe o ka lālā kaulahao pōkole	Linear (a i ʻole ke kekelē haʻahaʻa o ka lālā kaulahao pōkole)
Mea hoʻoulu a me ke kaʻina hana	Ke hoʻohana nei i ka polymerization radical me ka hoʻohana ʻana i ke ʻano tubular a i ʻole ke ʻano autoclave	Ke hoʻohana nei i ka mea hoʻoulu Ziegler-Natta a i ʻole ka mea hoʻoulu metallocene	Mea hoʻouluulu Ziegler-Natta i loko o: - Polymerization kahua hoʻokahi - Polymerization multi-stage a i ʻole kahi mea hoʻouluulu ʻano Cr a i ʻole Phillips
Ka nui o ka paʻa	0.910-0.925 g/cm3	0.91-0.94 g/cm3	0.941-0.965 g/cm3
Ka kristalina	Haʻahaʻa crystalline a kiʻekiʻe amorphous (ʻoi aku ka liʻiliʻi ma mua o 50-60% crystalline)	Semi-crytalline, pae ma waena o 35 a 60%	Kiʻekiʻe ke aniani a haʻahaʻa ka amorphous (>90% crystalline)
Kōmike Hoʻopōʻaiapuni
Nā ʻano	ʻOluʻolu a maikaʻi ka moakāka Nā waiwai pale makū maikaʻi Ka ikaika hopena kiʻekiʻe ma ka mahana haʻahaʻa ʻO ke kūpaʻa maikaʻi loa i nā waikawa, nā kumu a me nā aila mea kanu	I ka hoʻohālikelike ʻia me ka LDPE, loaʻa iā ia: ikaika tensile kiʻekiʻe ʻoi aku ka kiʻekiʻe o ka hopena a me ke kūpaʻa ʻana i ka puncture	Ke kūpaʻa kemika maikaʻi loa Ikaika tensile kiʻekiʻe Nā waiwai pale makū maikaʻi loa Paʻakikī a hiki ke palupalu iki
Nā Noi Laulā	ʻUhi liʻiliʻi, nā kiʻiʻoniʻoni, nā ʻeke ʻōpala ʻōmole hiki ke ʻomi ʻia, nā hoʻoheheʻe extrusion, a me nā laminates	Nā ʻeke hana kiʻekiʻe, nā ʻiliʻili cushioning, nā ʻiliʻili hoʻokaʻawale kaila, nā liner ʻoihana, nā kiʻiʻoniʻoni elastic, nā ʻeke hau, nā ʻeke no ka mea hoʻohui nā ʻeke hoʻopili a me nā ʻōpala	He haiki ka hoʻolaha ʻana o ke kaumaha molekala, he mau noi kona i loko o nā hoʻoheheʻe injection a i ʻole nā wili pālahalaha, a me ke ʻano hope He ākea ka hoʻolaha kaumaha molekala, hoʻohana ʻia e hana i nā huahana kiʻiʻoniʻoni, nā huahana plastik hakahaka a me nā paipu

He aha nā ʻano o ka HDPE?

1. He pauka keʻokeʻo wela maʻamau ka Polyethylene, ʻala ʻole, ʻono ʻole, ʻaʻohe ʻawahia.

2. ʻO ke kiko heheʻe o ka polyethylene he 100-130C - maikaʻi loa kona kūpaʻa haʻahaʻa.

3. He kūpaʻa kemika maikaʻi ko ka Polyethylene a kūpaʻa i ka waikawa nitric dilute, ka waikawa sulfuric dilute, ka waikawa hydrochloric, ka waikawa hydrofluoric, ka waikawa phosphoric, ka waikawa formic, ka waikawa acetic, ka ammonia, nā amines, ka hydrogen peroxide, ka sodium hydroxide, ka potassium hydroxide a me nā hopena ʻē aʻe ma ka mahana o ka lumi.

4. He maʻalahi ka Polyethylene i ka photo-oxidation, thermal oxidation, ozone decomposition, a maʻalahi hoʻi e hoʻohaumia ʻia ma lalo o ka hana a nā kukuna ultraviolet.

5. Mahana mau: -50 ° C a i +60 ° C, mea paʻakikī me nā hiki ke hoʻohana i ka mahana

6. Polymer haʻahaʻa ke kumukūʻai me ka hiki ke hana maikaʻi

7. Haʻahaʻa loa ka omo ʻana o ka wai

He aha ke ʻano PE hiki ke hana hou ʻia?

ʻO ke code ʻike Resin no ʻelua mau ʻano nui o PE:

ʻAʻole hiki ke palaho ʻia ka LDPE a me ka HDPE ma ke ʻano biodegradable. He mea nui kā lāua kōkua i nā huahana ʻōpala plastik o ka honua. Hiki ke hana hou ʻia nā ʻano PE ʻelua. Hoʻohana ʻia lāua e hana i nā ʻōmole no nā mea ʻai ʻole, nā plastik no nā hana waho, nā ʻōpala compost, a pēlā aku.

Nā lawelawe i loaʻa no ka PE Plastic

Nā huahana i hoʻopau ʻia

ʻO ka huahana hoʻokahi piha i hana ʻia me ka mea PE, e like me kekahi mau mea hoʻonaninani, nā ʻōpala, a pēlā aku.

ʻO Lorem ipsum dolor sit amet consectetur adipisicing elit. E hana i ka ʻeha, e hōʻole i kekahi, ʻo ia hoʻi ka mea nāna i hana i nā ʻeha, e ʻimi ʻole...

Nā hale a me nā ʻāpana o nā huahana mea kūʻai aku

Nā mea pāʻani, nā pahu ʻōmole

Nā mea pono mīkini, nā mīkini hale a me nā ʻāpana hui pū ʻia.

ʻO Lorem ipsum dolor sit amet consectetur adipisicing elit. E hana i ka ʻeha, e hōʻole i kekahi, ʻo ia hoʻi ka mea nāna i hana i nā ʻeha, e ʻimi ʻole...

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