HDPE
Nnukwu njupụta polyethylene (HDPE) ma ọ bụ ịdị elu nke polyethylene (HDPE) Bụ a polyethylene ihe na-ekpo ọkụ emere site na mmanu mmanu. A na - akpọ ya mgbe ụfọdụ "alkathene" ma ọ bụ "polythene" mgbe ejiri ya maka ọkpọkọ. Site na oke-ike-na-njupụta ruru, a na-eji HDPE na mmepụta nke karama plastik, ọkpọkọ na-eguzogide corrosion, geomembranes, na osisi larịị. A na-ejikarị HDPE emegharị ihe ọzọ, ma nwee nọmba "2" dịka koodu njirimara resin (nke a na-akpọbu akara akara imegharị).
N'afọ 2007, ọnụahịa ụwa HDPE ruru ogo karịrị nde iri atọ.
Properties
A maara HDPE maka nnukwu ike-na-njupụta ruru. Njupụta nke HDPE nwere ike ịdị site na 0.93 ruo 0.97 g / cm3 ma ọ bụ 970 n'arọ / m3. Ọ bụ ezie na njupụta nke HDPE bụ naanị oke ala karịa nke polyethylene dị ala, HDPE nwere obere alaka, na-enye ya ikike intermolecular na ike mgbatị karịa LDPE. Ihe dị iche na ike karịrị ọdịiche dị na njupụta, na-enye HDPE ikike dị elu karị. Ọ dịkwa ike ma nwekwuo ike ma nwee ike iguzogide oke okpomọkụ (120 Celsius C / 248 ° F maka obere oge, 110 Celsius C / 230 Celsius F na-aga n'ihu). Nnukwu polyethylene dị elu, n'adịghị ka polypropylene, enweghị ike ịnagide ọnọdụ achọrọ autoclaving kwesịrị. Enweghi ike ịmalite alaka ụlọ ọrụ site na nhọrọ kwesịrị ekwesị nke mmepụta (dịka, Ziegler-Natta catalysts) na ọnọdụ mmeghachi omume.
ngwa
HDPE na-eguzogide ọtụtụ solvents dị iche iche ma nwee ọtụtụ ngwa dị iche iche:
- Ewu mmiri igwu mmiri
- 3-D mpempe akwụkwọ na-ebi akwụkwọ
- Arena Board (oche puck)
- Efu azu azu
- Epe bọọlụ
- ọkọlọtọ
- Ogwe ọkpọ
- Ngwunye na-eguzogide mmiri
- Coax cable insulator
- Mkpọbe nri
- Mmanụ ụgbọ mmiri maka ụgbọ
- Mbibi ihe nchebe maka ọkpọkọ nchara
- Hovercraft nkeonwe; n'agbanyeghị na ọ dị nnukwu arọ maka ịrụ ezi ọrụ
- Igbe eletriki na ọkpọkọ
- Anya mịirekwa Anya
- Gbanye oche na tebụl
- Geomembrane maka ngwa hydraulic (dị ka ọwa mmiri na nkwalite akụ) yana njikwa kemịkal
- Usoro ikuku na-ebugharị ikuku Geothermal
- Oku na-eku oku n’ọkụ
- * Ikpeazụ maka akpụkpọ ụkwụ
- Gas ọkpọkọ nkesa gas
- ezimezi oku
- Akpa rọba
- Karama plastic adabara ma a na-atụgharị (dịka mmiri ara ehi) ma ọ bụ jigharị ọzọ
- Igwe osisi
- Surgerywa ahụ rọba (ọkpụkpụ na arụgharị ihu)
- Ihe mgbochi
- Mpempe akwụkwọ snow na igbe
- Nkume akwụkwọ
- Nchekwa nchekwa
- Ọwa telecom
- Tyvek
- Igwe mmiri maka ị nweta mmiri na usoro ọrụ ugbo
- Ngwakọta rọba osisi (iji polymer ndị a na-agagharị agagharị)
A na-ejikwa HDPE maka eriri mkpụrụ ndụ na ndepụta okwu D sanitary landfills, ebe akwa nke HDPE bụ ma ọ bụ mkpochasị ma ọ bụ wụkọtara ọnụ iji mepụta mgbochi nke na-eme ka mmiri bụrụ ebumnuche, na ebumnuche igbochi mmetọ nke ala na ala mmiri site na mpaghara mmiri mmiri siri ike. mkpofu.
A na-ahọrọ HDPE site na ahia pyrotechnics maka ngwa agha karịa nchara ma ọ bụ akpa PVC, na-adịte ndụ ma nwee nchebe. HDPE na-adọtakarị ma ọ bụ dọkaa ma ọ bụ mebie ya.
Egwuregwu mmiri ara ehi na ngwongwo ndị ọzọ dị omimi ịkpụ akpụ bụ ebe kachasị mkpa maka ngwa HDPE, na-aza ajụjụ maka otu ụzọ n'ụzọ atọ nke nrụpụta zuru ụwa ọnụ, ma ọ bụ karịa 8 nde tọn. Na mgbakwunye na ịmegharị ya site na iji usoro arụmọrụ, HDPE nwekwara ike ịhazi ya site na imegharị ihe n'ime filament maka ndị na-ebi akwụkwọ 3-D site na iji recycling. Enwere ihe akaebe ụfọdụ na ụdị imegharị a adịghị ike dị ike karịa imegharị ihe eji eme ihe, nke nwere ike ịgụnye ikike dị ukwuu maka njem.
Karịsịa, China, ebe a na-ebubata karama mmanya si HDPE na 2005, bụ ahịa na-eto eto maka nkwakọ ngwaahịa HDPE siri ike, n'ihi ọnọdụ ndụ ya ka mma. N'India na obodo ndi ozo toro elu, obodo ndi na etolite, gbasawanye akụrụngwa gunyere nkedo nke ọkpọkọ na mkpuchi mkpuchi emere si HDPE. Ihe omuma a eritela na mkparita uka banyere nsogbu aru ike na nsogbu gburugburu ebe obibi nke PVC na Polycarbonate jikọtara Bisphenol A, tinyere uru ya na iko, metal, na kaadiboodu.