He aha ka haʻahaʻa haʻahaʻa ('.Peʻu)?

ʻO ka pā o ka pānaʻi o kahi pahu pale a me keʻano, plible i kahi pale o kahi kiʻi kiʻi kiʻi kiʻiʻia e hanaʻia mai nā mea likeʻole -ʻo kekahi i hoʻolālāʻia no ka ikaika, ka mea'ē aʻe no ka maʻalahi. Aka, kahaha, hiki ke hanaʻia nā meaʻelua mai ka mea hana likeʻole: Haʻahaʻa haʻahaʻa haʻahaʻa ('.Peʻu).

ʻOiaiʻo Poyethylene kekahi o nā mea nui i hoʻohana nuiʻia ma ka honua, Aia ia ma nāʻano likeʻole, kēlā me kēiaʻenehana e hoʻokō i nā kūlana hana kūikawā.

'.Peʻu e hoʻokaʻawale iā ia iho ma o kāna hana molebular molled, ʻO nā meaʻole e hōʻoluʻolu,

ʻO ke kaʻina hana maikaʻi loa, a me nā mea hilinaʻi kiʻekiʻe loa - nā hiʻohiʻona e hana ai i nā mea i hoʻopiliʻia i loko o nā noi a me nā noi hana.

Ma kēiaʻatikala, Lawe mākou i kahi hohonu hohonu i loko o ka chemistry rype, Nā kaʻina hana, waiwai waiwai, a me nā hale hana.

KAHUIA, Eʻimi ana mākou i ke hoʻohālikelikeʻana o ka ldpe me nā polyhetloylenenenenenenenenenenenenenen stree a me ka loiloi i ka hoʻokele waiwai a me ka hoʻokele waiwai i ka mākeke o kēia lā.

1. He aha ka ldpe?

Haʻahaʻa haʻahaʻa haʻahaʻa ('.Peʻu) kū i waho e like me keʻano o ka bromoplastic polymer i loko o kaʻohana pohō.

Synthesized e ka polymerizing collenene monoms (C₂H₄) Ma lalo o nā kūlana kiʻekiʻe kiʻekiʻe, ʻO RLPEʻO LOLPURMʻO kāna papa inoa nui loa.

NOEHUI, hoʻokō ia i kahiʻano haʻahaʻa haʻahaʻa a me ka nui (0.910-0.940 G / cm³) ua hoʻohālikelikeʻia i kāna mea kiʻekiʻe kiʻekiʻe, E hāʻawi ana i kahi kūponoʻole, Hōʻailona, a me ka.

2. Kahua kūlohelohe & PolihaIki

Ealakoka Matelene McOmer & ʻO ka polymerization radical

I ka pae molecular, Ldpe lili mai ke alo o ke alo, Heʻelua-Carbon Alkene.

Nā Kūlana Radical (E.g., ʻoka nā pelioki) abstract hydrogen atoms ma lalo o nā koina o 1,000-3,000 Bar a me nā mahana o 150-300 ° C, Ke hoʻomaka nei ka uluʻana o ka Chain Chain.

Stucial, ʻO ke hoʻololiʻana i nāʻano hoʻololi e hāʻawi ai i ka pae kiʻekiʻe o ka pae kiʻekiʻe i ka ldpe.

Mlecular pūhaka

ʻO kēia papa inoa i hōʻikeʻia e like me ka pōkole (memeyl, 'ĀWAI) a me nā kaula lōʻihi.

Ma ka awelika, Ldpe Exbitts 2-10 lālā per 1,000 nā uila kalaʻula, ka mea e hoʻohuli ai i ka ho'ēmiʻana i ka crain crain a me ka crystallinity.

Ma ka hopena, Nohoʻo RNDPE i kahi a puni 0.925 g / cm³, No lailaʻo Hdpe Resses mai 0.941-0.965 g / cm³.

CIIX architting vs. Waiwai

Mea nui, ʻO nā lālā i hoʻopaʻaʻia i nā mea hana mechanical a me nā kumulāʻau.

ʻO ka mea hoʻolimalima hou aku i ka manaʻo o ka menging (i 105-115 ° C) A e hoʻonui i ka ellingation (a i 650 %), ʻOiaiʻo ka liʻiliʻi o ke kauʻana i ka ikaika o ka ikaika (a i 25 Mpa).

Wahi a, nā mea hana maikaʻi-tune reactors loli, keka ao, a me ka hoʻomakaʻana e hoʻokō i ka hana tailored.

3. Nā kaʻina hana hana

ʻO nā mea hou o Autoclave kiʻekiʻe

Autoclave (Kukulu) Hoʻomau mau nā mea hana e hoʻopaʻa i ka hana ldpe, ʻO ka laweʻana i kā lākou hiki ke hāʻawi i ka polymer brand.

I kahi huakaʻi maʻamau, Ethylene a me ka mea hoʻomaka e uku i ka reactors, e piʻi ana i 2,000 Bar, a me keʻano e piʻi ai 200 ° C. Ma hope o ka polymerization, Ua hoʻokuʻuʻia ka melt no ka pellethizing.

E hoʻomau. Mono Polyhiki

HE MAU NUI, Ke hoʻomau nei nā mea lanakila Tubular i nā mea haʻahaʻa haʻahaʻa a me ka hāʻawi 20-30 % ʻO ka hoʻokomo kiʻekiʻe, albeit me nā mea kākau moʻolelo molecular molecular.

ʻOiaiʻaʻole kēia, Hiki i nā hana mau ke hōʻoki i ka hoʻoikaikaʻana i ka ikehu 10-15 %, ka hoʻomaikaʻiʻana i nā hana kūpono a me ka hōʻemiʻana i nā wāwae green.

Pelletizing & Post-ka mālama

ʻOkoʻaʻia, ʻO ka ultpe wela i lalo o ka undergoes scand pelletizing, ukali e ka holoi ana 80-100 ° C e wehe i nā hua'ōlelo.

Mahope iho, Hoʻokomo nā mea hana i nā hoʻohui hoʻohui hoʻohui inoa-UV Stabilizers, Antoixdages, slick i nā mea hana-ma o ka blassbatch bluns, E hōʻoia ana i ka hana maʻi homogeneous a me ka hana lōʻihi.

4. O ka kino, Puiahuhu & Nā'lelo Thermal

I kēia'āpana, Ke nānā nei mākou i keʻano o ka mea kākau inoaʻo MDPE i ka mea i unuhiʻia i loko o kāna hana macroscopic.

Ma ka hoʻomaopopoʻana i kēia mau waiwai waiwai, Hiki i nā mīkini a me nā mea hoʻolālā ke hilinaʻi i ka LDPE no nā noi e noi ana i kahi kaulike kūpono, ikaika, hana thermal.

Huakai & KOKUÜ ona

Mua a mua loa, Velpe's density-maʻamau maʻamau 0.910-0.940 G / cm³-ʻOiʻi i konaʻano haʻahaʻa haʻahaʻa haʻahaʻa (ahu 35-55 %).

NOEHUI, Ua hōʻikeʻo LDPE i ka maikaʻi a me keʻanoʻole.

Ke emi nei ka crystallinity, ʻO nā haleʻo Amorphous, e hiki ai i nā kiʻiʻoniʻoni a me nā'āpana liʻiliʻi e hoʻopaʻaʻia a me ka hukiʻole, ʻOiai ma keʻano wela.

Ikaika ikaika & Ewangantion

Eia hou, Hoʻopiliʻo RDPE i ka ikaika haʻahaʻa me nā haʻahaʻa kupaianaha.

Kona ikaika hope loa (Us) hāʻule i waena o 10 a 20 Mpa, ʻOiai e hiki mai ana i ka wā hoʻomaha 200 % i 650 %.

I nā hua'ōlelo kūpono, ʻO kēia keʻano o nā kiʻiʻoniʻoni LDPE e hiki i nā manawa he nui o ko lākou mau lōʻihi ma mua o ka wā e like me keʻano o ka hoʻopiʻiʻana i nā pale.

Hopena kū'ē & Hālulu

Kahi mea hou aʻe, ʻO Rdpe Botorbs i nā haʻuki maikaʻi loa. Loaʻa nā waiwai izod izod 50-100 j / m, a me nā kahakai d paʻakikī i nā ana a puni 40-55.

Hōʻike kēia mau helu i ka'ōpū o ka ldpe (No ka hōʻoluʻolu lima i nāʻeke lāʻau) me ka paʻakikī paʻakikī e pale aku i nā punctures a me nā waimaka i ka wā e hana ana.

Kauhini

Ke hoʻololi nei i nā waiwai o nā kumulāʻau, Ldpe malts ma waena 105 ° C a 115 ° C, nā mea e kūkulu ai i kona hoʻohanaʻana i nā noi haʻahaʻa haʻahaʻa a me ka haʻahaʻa.

Kona wela wela wela ma lalo o nā wahi e noho kokoke ana 45-50 ° C, a he haʻahaʻa loa konaʻano thermal 0.33 W / m · c · k-ʻOi i kahi mea hoʻoweliweli maikaʻi no ka hoʻopiliʻana a me kekahi mau laina hana.

Nā waiwai Barries

Hope loa, Hāʻawiʻo LDPE i nā hana haʻahaʻa haʻahaʻa.

ʻO kaʻaeʻana o ka oxygen i ka pae o ka awelika 600 cm³ · mm / mm / tell s · amp, ʻO nā palenaʻo Carbon Dioxide e hōʻike ana 200-600 cM-· mm / mm, a me ke komoʻana o ka wai i ka wai 0.3-0.5 O · MM / mm / moz.

Mahalo i kēia mau uku, Hāʻawiʻo LDPE i nā pale kūpono no nā huahana meaʻai he nui, ʻOiai ke kāhea pinepineʻia nā noi kiʻekiʻe no nā hana he nui a iʻole nā ​​mea koho balota.

ʻO nā waiwai kūpono kūpono o nā mea haʻahaʻa loa:

Waiwai	Kaonaʻeha
Huakai (g / cm³)	0.910-0.940
KOKUÜ ona (%)	35-55
Ikaika ikaika (Us, Mpa)	10-20
Elongation ma ka wā hoʻomaha (%)	200-650
Izod hopena (J / m)	50-100
Kahu paʻakikī	40-55
Malting Point (° C)	105-115
ʻO keʻano wela wela. (° C)	45-50
Ka HōʻaʻO Kokua (W / m · c · k)	~ 0.33
ONCSITALIA (cm³ · mm / mm / tell s · amp)	~ 600
CO₂ POSOMABITA (cm³ · mm / mm / tell s · amp)	200-600
Wvtr (g · mm / mm / m ²)	0.3-0.5

5. Ke kaʻina hanaʻana

Hānehi & Kaomi pim

I nā kiʻi kiʻi kiʻi, VelPE i nā mea kanu tublar i kēlā, I ka wā e hoʻopili pono ai a hāʻule, ʻO nā kiʻiʻoniʻoni me nā mea maikaʻi maikaʻi loa a me ka hopena hopena.

Ma ka hoʻohālikelike, Hoʻounaʻia ka kiʻi kiʻi kiʻi kiʻi kiʻi (± 2 }m), Ke kūpono nei ia no nā kiʻi kiʻi a me ka lamination.

ʻO nā molding molding

Pono ke liloʻana i ka ldpe kūpono i nā wela o ka 180-220 ° C a me nā wela wela o 40-60 ° C.

Hōʻike nā mea hoʻolālā 1.5-3 % No ka paleʻana i ka'ōleloʻana i ka volumetric. Ma ka hopena, nā'āpana e like me nā'ōpala i loaʻa i nā dimensions pololei a me ka pā nui.

Blow molding & Moding moding

Hoʻokumuʻo Flow Flow Moding Moding i nā mea paʻa e pili ana i nā mea paʻahao e hoʻopau i kahi pale molten,

ʻOiai e hoʻohana ana i ka moding snology e hoʻohana i ka wikiwiki a me ka wela e hana nui, nā'āpana'āpana-a i 2 m I ka anime-me ka papa lole papa.

Pauolomle & ʻO ka hanaʻana

I ka wā o ka hana, Nā pepa ldpe (1-5 mm mānoanoa) wela i 110-120 ° C a laila lawe i luna a iʻole keʻano i loko o nā'ōpū.

Huki i nā pae 4:1 ʻAeʻia no nā'ōlelo maikaʻi loa, maikaʻi no nā papa hana a me nā lids.

6. Hoʻohui, Nā polilikela & Nā Hoʻohui

Uv stabilizers, Antoixdages & Nā Peila

E kaua i ka hoʻopiʻiʻana i ka degradation uv-incounded, hoʻohui i nā forpulators uv itssorbes a me nā hals ma 0.1-1 wt %.

Antoixdages (E.g., nā mea phenolic kūloko) a 0.05-0.5 wt % Kāohi i ka ORRMIdation, ʻOiaiʻo Calcium Carthereate fillers (5-20 wt %) hoala i ka paakiki e 30 %.

Nā'ōpiopioʻo RDP & Alloys

Blunsing ldpe me lldpe (Lauloa Paha) a 20-50 wt % hoʻonui i ka ikaika o ka ikaika 10-15 % a me ka hoʻopaʻi kū'ēʻana e 20 %.

Like, RDPE / HDP A RLOYY BIGT RIGST RIGITY A E HOOLOLI ANA I KE KAI LOA 5-10 ° C, Ke weheʻana i nā Windows Appy.

Nā nano kikoʻomacompoi i & Nā hana hou

E hoʻohui ana i 1-5 wt % Hiki i nā poʻeʻo Nano-cars a iʻole nā ​​Nanot omatubes ke hōʻemi i ka permebility gas i 30-50 % a e hoʻonui i ka modulus'ōpio e 10-20 %, Pēlā ka holomuaʻana o ka ldpe i loko o nā hale kiʻi kiʻi kiʻekiʻe a me nā mākeke kiʻiʻoniʻoni kūikawā.

7. Nā noi maʻamau o ka haʻahaʻa haʻahaʻa ('.Peʻu)

Mahalo i konaʻano, ʻO LDP mau hiʻohiʻona kaulana i loko:

• Nā PILLL FILMS: Kāohi i ka shrink, nā kiʻi kiʻi kiʻi allahihula., a me nā meaʻai meaʻai.
• ʻEke & Kōkele: Nā Pahu Grocery, Nāʻeke hale kūʻai, a me nā apoʻeono.
• Nā popala & Nā hue: Stideeze botles, e hoʻokuʻu ana i nā tubes, a me ka hau hau hau.
• 'Ahuʻu & Liners: Kāleʻa lāʻau lapaʻau, pale pale cable, A me nā Geomenmranes.
• Waiwai kūikawā: Nā hale hoʻokipa paʻa, Nā kumu kūʻai prosthetic, a me nā mea haʻahaʻa haʻahaʻa haʻahaʻa.

Nui loa, ʻO ka paleʻana o RODPE e pili ana i nā maʻi, Nā Hale Kiʻi, a me nā'āpana nui o ka hana i ke kuleana e koi ai i nā wahi, mai nā mea kālepa o ke kemika i nā pale o waho.

8. Loaʻa & Nā palena o ka haʻahaʻa haʻahaʻa haʻahaʻa ('.Peʻu)

Loaʻa

• Hoʻololi maikaʻi: Elongation up 650 % pale aku i ka paleʻana ma lalo o ka strain nui.
• Kekau & Ke kū'ēʻana: Paʻa i ka hapa nui, Nā Hale Kiʻi, a me ka wai wai.
• Kumukūʻai-kūpono: I waena o nā mea kūʻai aku i nā mea kūʻai aku, me ka uku pinepine 25-35 % ma lalo iho hdpe.
• Recycability: Uaʻaeʻia ka nui o nā polokalamu Curbside e like me ke code resin "4," me nā papa hana hou o ka 20-30 % i nā mākeke kūkuluʻia.

PAHUI

• Kipakuikaikauna: Melting ma luna 115 ° C Hoʻopau i nā noi wela kiʻekiʻe.
• ʻO nā mea maʻi maʻi: Hiki i ke kūʻai akuʻo Elevated ON / CO₂ i ke ola i ke ola o ke ola o nā huahana oxygen.
• UV Sentitivity: Pono nā mea hoʻokūkū no ka hoʻohanaʻana i waho, hoʻohui 0.5-1 % No ke kumukūʻai kumukūʻai.
• ʻO ka ikaika haʻahaʻa: Ikaika ikaika (10-20 mpa) Halewa HdP (20-37 mpa), Ke kūkulu nei i nā hoʻohana kaumaha.

9. Hoʻohālikelike hoʻohālikelike: Ldpe vs. ʻO Nā Mele Makau

E hoʻomaikaʻi piha i ke kūlana o Haʻahaʻa haʻahaʻa haʻahaʻa ('.Peʻu) I loko o kaʻohana ākea o nā mea hana polythylene,

He mea nui ia e hoʻohālikelike ai i kona mau hoahānau hana: ʻO ke kāne kiʻekiʻe loaʻo Melatethyalne (HDPE), Hoʻopiʻi (Mdpe), a Lauloa Low-Keiahi LooteTyyyyyyyy (Llp).

ʻOiai e haʻi nei kēia polymers i ka like me Ethleyne Monoom, kā lākou Nā Pūnaewele Molecular, mau kaila, a me nā mea hana hoʻoikaika nui, Ma laila e wehewehe ana i ko lākou kūpono no nā noi likeʻole.

Ldpe vs. HDPE: Fleabity vs. Kūkaha

ʻO ka hoʻolālā molecular & Huakai

Ua hōʻikeʻiaʻo RDPE e ʻO nā kaulahao i hoʻopaʻaʻia, e alakaʻi ana i a haʻahaʻa haʻahaʻa (0.910-0.940 G / cm³) a ho'ēmi i ka crystallinity (~ 40-50%).

He ʻokoʻa, Nā hōʻike hoʻolaha hoʻolaha hoʻolaha Nā kaulahao linear me nā lālā liʻiliʻi, Kau i ʻoi aku ka kiʻekiʻe (0.940-0.970 g / cm³) a me ke kalaiwa a hiki i 80%.

Nā Pīkuhi Propertinies

Nā Kūlana HDP ʻoi aku ka ikaika kiʻekiʻe (20-37 mpa) a hoʻomaikaʻi i ka paleʻana i ka hopena ua hoʻohālikelikeʻia i ka ldpe, Ke kūpono nei ia no nā huahana rige e like me Nā Tanks, pipes, Nā Crates, a me nā huehue.

'.Peʻu, ma ka lima ʻē aʻe, mālama ELARORE ELREATION ma ka wā hoʻomaha (200-600%), nā noi e noi ana i nā noi ka nui a me ke kūleʻa, e like me nā kiʻiʻoniʻoni a me nā'ōpala.

ʻO ka paleʻana a me keʻano

Hoʻokomoʻia nā meaʻelua i kahi ākea ākea, akā, hāʻawi akuʻo HDP ʻoi aku ka maikaʻi o ka paleʻana i ka paleʻana a me ke kūpaʻa, me a wela wela wela kokoke i 60-75 ° C,

ua hoʻohālikelikeʻia i ka LDPE 40-50 ° C. Akā naʻe,, ʻO HDP TO E PILI ANA I KA LAHUI ANA I KE KOLOHE ANA I KE KOLOHE ANA.

Ldpe vs. Mdpe: Kahi paona kaulike

Nā waiwai o waena

Hoʻopiʻi (Mdpe) ʻO nā alahaka i ka gap ma waena o ka ldpe a me ka hdpe. Nā hiʻohiʻona ʻO ka lālā kūpono, e alakaʻi ana i a density o 0.926-0.940 G / cm³.

ʻO kona mau paʻakikī a me kona mau pale kū'ē i keʻano o ka ldpe a me ka hdpe, ke kūpono kūpono no nā pipes hau, ʻO nā kiʻiʻoniʻoni, a me ka uwēʻana.

Ke kū nei ke kaumaha i ke kū'ē

Nā hōʻike MDPE maʻamau Hoʻonui i keʻano o keʻano o ke kino kūlohelohe (Kākau) ua hoʻohālikelikeʻia i ka ldpe, ʻoiai i ka wā i hōʻikeʻia ai i nā aila a me nā pale.

Akā naʻe,, VelPE paʻa i kaʻaoʻao i loko ʻO ka maʻalahi a me keʻano kūpono, ʻO ka mea koʻikoʻi no nā noi e like me nā kiʻiʻoniʻoni transparent.

Ldpe vs. Llp: Ke kaʻina hana vs. Hana

Nāʻanoʻokoʻa

ʻOiaiʻo LDPE he lālā lōʻihi lōʻihi, Llp (Lauloa Low-Keiahi LooteTyyyyyyyy) Nā hiʻohiʻona ʻO ka lālā pōkole pōkole, Ua hoʻokomoʻia ma o ka copalymerization me alpha-a me Olefins e like me Buene, Hexene, a iʻoleʻOkakopa.

Hāʻawi kēia i ka lllpe ʻoi aku ka nui o nā mea i loko o nā molecular kaumaha a me nā mea hana.

Paʻakikī a me ka hakakāʻana

Llpe nui loa i waho o ka ldpe i nā'ōlelo a paʻakikī, Kūkaha Hoʻomau, a me ka ikaika-ʻOi i nā noi kiʻiʻoniʻoni.

ʻo kahi laʻana, ʻO nā films llde exhibit dartibit dart imps i nā ikaika e hiki ai i 2-3 mau manawa kiʻekiʻe ma mua o nā helu ldpe likeʻole.

Ka hoʻoiliʻana a me nā noʻonoʻo noʻonoʻo

Akā naʻe,, Ponoʻo LLDPE ʻO nā puka makani kūʻai aku a ʻO nā koina kiʻekiʻe kiʻekiʻe, e ho'ēmi ana i ke kalaʻana ma mua o ka ldpe ma keʻano he kiʻi kiʻi kiʻi.

Hāʻawiʻiaʻo LDPE ʻoi aku ka maikaʻi o ka clarity maikaʻi a me ka honua, nā mea e loaʻa ai nā mea kūʻai aku i nā huahana meaʻai a me nā mea kūʻai aku.

ʻO nā kālepa kālepa kālepa-hana

Ke kohoʻana i kahi papa polyhethylene, Pono nā poʻeʻenehana a me nā limahana limahana e noʻonoʻo i ka Ka helu waiwai nui, ʻaʻole wale nā ​​metric:

10. Hopena

I ka hōʻuluʻuluʻana, Haʻahaʻa haʻahaʻa haʻahaʻa ('.Peʻu) Ke hoʻomau neiʻo ia i kahi mea i hoʻopaʻaʻia i kahiʻano o nā huahana-mahalo i kona loliʻole, ke kūleʻa o ke kinohi, a me ka pono.

Ma o ka mana pololei o ka polyhization, nā'ōnaehana hoʻohui hoʻohui, a me ka hana holomua, Ua huiʻo LDPE i nā koina o ka mākeke mai nā hana meaʻai i nā polokalamu lapaʻau.

Nānā i mua, innovations i nanomomposites, Nā Pāʻai Pūnaewele, a hoʻonui houʻia nāʻenehana recycling recycling e hoʻonui hou aku iā Bolster Roltpe i keʻano, ʻO nā mea e hiki mai ana.

Hōʻaʻakeʻa

Hāʻawiʻo Deze i kahi ākea ākea o nā mea hana hana, me ka Cnc iching, nā'ōlaʻi kewai, 3D paʻi, ʻO nā molding molding, a sheet icetal fabrication.

E kiʻi i kāu'ōlelo koke i kēia lā.