Polyethylene Plastic(PE)

* ʻO PE ka polyethylene plastic, hiki ke hana ʻia i kiʻi ʻoniʻoni, ʻeke plastik a me nā ʻāpana like ʻole. I mea e hōʻemi ai i ka pollution keʻokeʻo, hiki ke hoʻohui ʻia nā mea hoʻohaʻahaʻa i ka plastic no ka hoʻokō ʻana i ke kumu o ka hoʻohaʻahaʻa wikiwiki ʻana, ua kapa ʻia kēia ʻano polyethylene i nā plastics friendly environmentally.

* Nā huahana plastik PE a i ʻole nā ʻāpana

IKAIKA

PALAPALA

NA OIHANA 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 ka mea maʻalahi polymer organic compounds, ka honua i hoʻohana nui ʻia ʻo PE polyethylene polymer material, polymerization o ka ethylene, e like me nā ʻokoʻa like ʻole ua māhele ʻia i ka polyethylene kiʻekiʻe, medium-density polyethylene a me ka polyethylene haʻahaʻa.

ʻO ka polyethylene he meaʻalaʻole,ʻaʻohe meaʻawaʻawa, manaʻo e like me ka wax, he kūlana haʻahaʻa haʻahaʻa maikaʻi loa (ʻo ka hoʻohana haʻahaʻa haʻahaʻa a hiki i -100 ~ -70 ° C), ke kūpaʻa kemika maikaʻi, hiki ke kū i ka hapa nui o nā waikawa a me nā alkalis (ʻaʻole kū'ē i nā waiwai oxidizing o ka waikawa). ʻAʻole hiki ke hoʻoheheʻe ʻia i loko o nā mea hoʻoheheʻe maʻamau i ka lumi wela, ka wai liʻiliʻi o ka wai, ka 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 e ka hoʻohui a i ʻole ka polymerization radical. ʻO nā ʻano hana synthesis hiki ke:

Ziegler-Natta Polymerization a me

Metallocene catalysis

He mea make nā PE resins?

Ma ke ʻano paʻa, manaʻo ʻia ʻo Polyethylene he palekana a ʻaʻohe mea ʻawaʻawa ma ke ʻano. Hiki ke lilo i mea ʻawaʻawa ke hoʻomohu ʻia a/a i ʻole e hoʻomoʻa ʻia e like me ka mahu a i ʻole ka wai (ʻo ia hoʻi, i ka wā o ka hana ʻana).

He aha nā ʻano PE maʻamau?

Ma muli o kona mānoanoa a me ka lālā, hiki i nā māka PE ʻokoʻa ke hana ʻokoʻa loa mai kekahi.

No laila ua hoʻokaʻawale ʻia nā māka PE penei.

Nā Manaʻo lālā

Polyethylene haʻahaʻa haʻahaʻa (LDPE)

Linear low-density polyethylene (LLDPE)

Nā Manaʻo Linear

Polyethylene kiʻekiʻe (HDPE)

Polyethylene kaumaha-nui-kiʻekiʻe-molekula-kaumaha (UHMWPE)

Ka polyethylene pili kea (PEX a i ʻole XLPE)

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

Polyethylene mānoanoa (MDPE)

Polyethylene haʻahaʻa haʻahaʻa haʻahaʻa loa (ULDPE)

Polyethylene kaumaha molekala kiʻekiʻe (HMWPE)

Metallocene polyethylene (mPE)

Polyethylene chlorinated (CPE)

E hoʻomaka me kahi huaʻōlelo manuahi manuahi!

Paʻa a hūnā ʻia nā hoʻoili ʻana a pau

LOA HUI ALAKAI HANA

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

	LDPE	LLDPE	HDPE
Polymer inoa piha	Polyethylene Haʻahaʻa Haʻahaʻa	Linear Low Density Polyethylene	Kiʻekiʻe Density Polyethylene
Hoʻolālā	Ke kūlana kiʻekiʻe o ke kaulahao pōkole lālā + kaulahao lōʻihi	Kiʻekiʻe o ka lālā kaulahao pōkole	Linear (a i ʻole degere haʻahaʻa o ka lālā kaulahao pōkole)
Catalyst a me ka hana	Ke hoʻohana nei i ka polymerization radical e hoʻohana ana i ke ʻano tubular a i ʻole ke ʻano autoclave	Me ka hoʻohana ʻana iā Ziegler-Natta catalyst a i ʻole metallocene catalyst	ʻO Ziegler-Natta ka mea hoʻoikaika i: - Hoʻokahi-pae polymerization - Ka polymerization nui a i ʻole Cr a i ʻole Phillips-type catalyst
ʻO ka mānoanoa	0.910-0.925 g/cm3	0.91-0.94 g/cm3	0.941-0.965 g/cm3
Crystallinity	Haʻahaʻa crystalline a kiʻekiʻe amorphous (emi iho ma lalo o 50-60% crystalline)	Semi-crytalline, pae ma waena o 35 a 60%	Kiʻekiʻe crystalline a haʻahaʻa amorphous (>90% crystalline)
Code Recycling
Nā hiʻohiʻona	Hiki ke maʻalahi a me ka māliko maikaʻi Maikaʻi nā waiwai pale pale Ka ikaika hopena kiʻekiʻe ma ka wela haʻahaʻa Kūleʻa maikaʻi i nā waikawa, nā kumu a me nā aila meaʻai	Ke hoʻohālikelike ʻia me LDPE, loaʻa iā ia: ʻoi aku ka ikaika tensile ka hopena kiʻekiʻe a me ke kū'ē i ka puncture	Kūleʻa kemika maikaʻi loa Ka ikaika tensile kiʻekiʻe ʻOi aku ka maikaʻi o nā waiwai pale pale Paʻakikī i semi-flexible
Noi Nui	Hoʻopili ʻia nā ʻeke ʻōpala, nā kiʻiʻoniʻoni, nā ʻeke ʻōpala, extrusion moldings, a me nā laminates	Nā ʻeke hana kiʻekiʻe, nā kiʻi cushioning, nā kiʻiʻoniʻoni hoʻokaʻawale kaʻa, nā laina ʻoihana, nā kiʻi ʻoniʻoni, ʻeke hau, ʻeke no ka mea hoʻohui ʻeke a me nā ʻeke ʻōpala	ʻO ka hāʻawi ʻana i ke kaumaha molecular he haiki, loaʻa nā noi i loko o ka injection moldings a i ʻole nā wili palahalaha, a me ke ʻano hope He ākea ka hāʻawi ʻana i ke kaumaha molecular, hoʻohana ʻia e hana i nā huahana kiʻiʻoniʻoni, nā huahana plastik a me nā paipu

He aha nā waiwai o HDPE?

1. ʻO ka polyethylene kahi mea wela maʻamau, ʻaʻala ʻole, ʻono ʻole, pauka keʻokeʻo hoʻopau ʻole.

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

3. He kūpaʻa kemika maikaʻi ka Polyethylene a kū'ē i ka dilute nitric acid, dilute sulfuric acid, hydrochloric acid, hydrofluoric acid, phosphoric acid, formic acid, acetic acid, ammonia, amines, hydrogen peroxide, sodium hydroxide, potassium hydroxide a me nā mea'ē aʻe i ka mahana wela.

4. He mea maʻalahi ka polyethylene i ka photo-oxidation, thermal oxidation, ozone decomposition, a me ka maʻalahi ma lalo o ka hana o nā kukui ultraviolet.

5. Ka wela mau: -50 ° C a i +60 ° C, mea paʻakikī me ka hiki ke wela.

6. Haʻahaʻa kumu kūʻai polymer me ka maikaʻi processability

7. Haʻahaʻa loa ka wai

He aha ke ʻano o ka PE hiki ke hana hou?

ʻO ka Resin Identification Code no nā ʻano nui ʻelua o ka PE:

ʻAʻole hiki ke biodegradable ka LDPE a me HDPE. Hāʻawi nui lākou i nā huahana ʻōpala plastik o ka honua. Hiki ke hana hou ia na ano PE elua. Hoʻohana ʻia lākou no ka hana ʻana i nā hue no nā mea ʻai ʻole, nā plastics no nā noi waho, nā compost bins, etc.

Loaʻa nā lawelawe no ka Plastic PE

Nā huahana i hoʻopau ʻia

Hoʻopiha i ka huahana hoʻokahi i hana ʻia me ka mea PE, e like me kekahi mau mea hoʻonaninani, nā ʻōpala, etc.

Lorem ipsum dolor sit amet consectetur adipiscing elit. E hana i ka ʻeha, e hōʻole, ʻaʻole e ʻimi kekahi i ka mea nāna i hana i nā ʻeha ...

ʻO nā hale huahana mea kūʻai aku a me nā ʻāpana

Mea Paʻani, ʻOmole

Nā lako mīkini, nā mea hana hale a me nā ʻāpana hui pū ʻē aʻe.

Lorem ipsum dolor sit amet consectetur adipiscing elit. E hana i ka ʻeha, e hōʻole, ʻaʻole e ʻimi kekahi i ka mea nāna i hana i nā ʻeha ...

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