Nkọwa ngwa ngwa
NJ ngwaahịa: EI042502KK
Ọnụ ala dayameta: 12mm-110mm
Ogo nrụgide: 0.25Mpa, 0.4Mpa, 0.6Mpa
Suit ike: Ọkara na elu nsogbu ogbugba mmiri n'ubi ọkpọkọ ji n'okpuruala akụkụ nke
isi ọkpọkọ dị ka ọkpọkọ ọkpọkọ, micro-sprinkler ogbugba mmiri n'ubi;obere nsogbu ogbugba mmiri n'ubi ọkpọkọ nwere ike
A ga-etinye maka ọkpọkọ alaka nke ogbugba mmiri n'ubi, ogbugba mmiri n'ubi, mmiri mmiri mmiri.
Ọdabara okpomọkụ: 0-45 ℃
Ọnọdụ njikọ: Ọ bụ njikọ ngwa ngwa ejikọrọ ya.
Dayu Water Saving Group Co., Ltd. e hiwere na 1999. Ọ bụ ụlọ ọrụ nkà na ụzụ dị elu nke mba nke dabeere na Chinese Academy of Water Sciences, Science and Technology Promotion Center nke Ministry of Water Resources, Chinese Academy of Sciences. Ụlọ akwụkwọ nkà mmụta sayensị nke China na ụlọ ọrụ nyocha sayensị ndị ọzọ.Edepụtara na Market Growth Enterprise.Koodu ngwaahịa: 300021. E hiwere ụlọ ọrụ ahụ maka afọ 20 ma na-elekwasị anya mgbe niile ma nyefee onwe ya maka ngwọta na ọrụ nke ọrụ ugbo, ime obodo na mmiri mmiri.Ọ na-etolite n'ime nchịkọta nchekwa mmiri nke ugbo ugbo, mmiri ime obodo na ime obodo, ọgwụgwọ nsị mmiri, ihe gbasara mmiri dị mma, njikọ mmiri mmiri, njikwa mmiri gburugburu ebe obibi na mweghachi na ubi ndị ọzọ.Onye na-eweta usoro ihe ngwọta ọkachamara maka agbụ ụlọ ọrụ dum na-ejikọta atụmatụ, imewe, itinye ego, ihe owuwu, ọrụ, njikwa na ọrụ nlekọta.Ọ bụ ụlọ ọrụ mbụ n'ọhịa nke ịzọpụta mmiri mmiri na China na onye ndu ụwa.
Polyethylene nwere njupụta dị elu, aha Bekee bụ "Elu njupụta Polyethylene", ma ọ bụ "HDPE" maka nkenke.HDPE bụ kristal nke ukwuu, resin thermoplastic na-abụghị polar.Ọdịdị nke HDPE mbụ bụ mmiri ara ehi na-acha ọcha, na akụkụ dị mkpa bụ translucent ruo n'ókè ụfọdụ.PE nwere ezigbo iguzogide ọtụtụ kemịkalụ ụlọ na ụlọ ọrụ mmepụta ihe.Ụdị kemịkal ụfọdụ nwere ike ịkpata corrosion kemịkalụ, dị ka ihe ndị na-emebi emebi (nitric acid), aromatic hydrocarbons (xylene) na halogenated hydrocarbons (carbon tetrachloride).Na polima bụ na-abụghị hygroscopic na nwere ezigbo mmiri vepo resistance, na ike ga-eji maka nkwakọ nzube.HDPE nwere ezigbo ọkụ eletrik, karịsịa ike dielectric dị elu nke mkpuchi, na-eme ka ọ dị mma maka wires na eriri.Ọkara na elu molekụla akara ule nwere mmetụta dị oke mma, ọbụlagodi n'ime ụlọ okpomọkụ na ọbụlagodi na okpomọkụ dị ala nke -40F.
HDPE bụ polyolefin thermoplastic mepụtara site na copolymerization nke ethylene.Ọ bụ ezie na ewepụtara HDPE na 1956, plastik a erubeghị ọkwa tozuru oke.Nke a n'ozuzu-ebumnobi ihe na-mgbe niile na-emepe emepe ọhụrụ ojiji na ahịa.
Isi atụmatụ
HDPE bụ resin thermoplastic na-abụghị polar nwere nnukwu crystallinity.Ọdịdị nke HDPE mbụ bụ mmiri ara ehi na-acha ọcha, na akụkụ dị mkpa bụ translucent ruo n'ókè ụfọdụ.PE nwere ezigbo iguzogide ọtụtụ kemịkalụ ụlọ na ụlọ ọrụ mmepụta ihe.Ụdị kemịkal ụfọdụ nwere ike ịkpata corrosion kemịkalụ, dị ka ihe ndị na-emebi emebi (nitric acid), aromatic hydrocarbons (xylene) na halogenated hydrocarbons (carbon tetrachloride).Na polima bụ na-abụghị hygroscopic na nwere ezigbo mmiri vepo resistance, na ike ga-eji maka nkwakọ nzube.HDPE nwere ezigbo ọkụ eletrik, karịsịa ike dielectric dị elu nke mkpuchi, na-eme ka ọ dị mma maka wires na eriri.Ọkara na elu molekụla akara ule nwere mmetụta dị oke mma, ọbụlagodi n'ime ụlọ okpomọkụ na ọbụlagodi na okpomọkụ dị ala nke -40F.Àgwà pụrụ iche nke ọkwa dị iche iche nke HDPE bụ ngwakọta kwesịrị ekwesị nke mgbanwe anọ bụ isi: njupụta, ịdị arọ molecular, nkesa arọ molecular na ihe mgbakwunye.A na-eji ihe dị iche iche eme ihe iji mepụta polymers ahaziri iche nwere ihe pụrụ iche.Nchikota nke mgbanwe ndị a na-emepụta akara ule HDPE maka ebumnuche dị iche iche;na-enweta nguzozi kachasị mma na arụmọrụ.
njupụta
Nke a bụ isi mgbanwe nke na-ekpebi njirimara HDPE, ọ bụ ezie na mgbanwe anọ ndị a kpọtụrụ aha na-emetụta ibe ha.Ethylene bụ isi akụrụngwa nke polyethylene.A na-ejikarị ndị ọzọ comonomers, dị ka 1-butene, 1-hexene ma ọ bụ 1-octene, na-ejikarị emeziwanye arụmọrụ polymer.Maka HDPE, ọdịnaya nke monomers ole na ole dị n'elu anaghị agafe 1%-2%.Mgbakwunye nke comomer dị ntakịrị na-ebelata kristal nke polymer.A na-atụkarị mgbanwe a site na njupụta, nke nwere njikọ kwụ ọtọ na crystallinity.Nhazi nke United States n'ozuzu dabere na ASTM D1248, na njupụta nke HDPE bụ 0.940g/.N'elu C;Ogo njupụta nke MDPE bụ 0.926 ~ 0.940g/CC.Nhazi ndị ọzọ mgbe ụfọdụ na-ekewa MDPE ka HDPE ma ọ bụ LLDPE.Homopolymers nwere njupụta kachasị elu, isi ike kachasị elu, ezigbo permeability na ebe mgbaze kachasị elu, mana n'ozuzu ha na-enwe mmetụta na-adịghị mma na mgbawa gburugburu ebe obibi (ESCR).ESCR bụ ikike nke PE iguzogide mgbawa nke igwe ma ọ bụ kemịkalụ kpatara.Njupụta dị elu n'ozuzu na-eme ka ike arụ ọrụ dịkwuo mma, dị ka ike nkwụsị, isi ike, na isi ike;ihe ndị na-ekpo ọkụ dị ka ihe na-eme ka ọ dị nro na okpomọkụ nke mgbagwoju anya;na enweghi ike ime ihe, dị ka ikuku ikuku ma ọ bụ ike ikuku mmiri.Njupụta dị ala na-eme ka ike mmetụta ya na E-SCR dịkwuo mma.A na-emetụta njupụta polymer tumadi site na mgbakwunye nke comonomers, mana ruo n'ókè dị ntakịrị site na ịdị arọ molekụla.Pasent arọ molekụla dị elu na-ebelata njupụta ntakịrị.Dịka ọmụmaatụ, homopolymers nwere njupụta dị iche iche n'ọtụtụ dị iche iche nke molekul.
Mmepụta na ihe mkpali
Usoro mmepụta nke PE na-emekarị bụ site na nhazi oge nke slurry ma ọ bụ gas, na ụfọdụ na-emepụta site na nhazi usoro ngwọta.Usoro ndị a niile bụ mmeghachi omume exothermic metụtara ethylene monomer, monomer a-olefin, sistemu ike (nwere ike ịbụ ihe karịrị otu ogige) na ụdị diluent hydrocarbon dị iche iche.A na-eji hydrogen na ụfọdụ ihe na-eme ka mmadụ chịkwaa ịdị arọ molekụla.The slurry reactor bụ n'ozuzu tank na-akpali akpali ma ọ bụ a na-ejikarị nnukwu ọnụ ọgụgụ akaghị reactor nke slurry nwere ike ikesa na kpalite.Mgbe ethylene na comomer (dị ka ọ dị mkpa) batara na kọntaktị, a na-emepụta ihe ndị dị na polyethylene.Mgbe o wepụsịrị ihe na-edozi ahụ, a na-akpọnwụ polyethylene granules ma ọ bụ ntụ ntụ na-agbakwunye ihe mgbakwunye dịka usoro onunu si emepụta pellets.Akara mmepụta ọgbara ọhụrụ nwere nnukwu reactors nwere ejima ịghasa extruders nwere ike iwepụta ihe karịrị 40,000 pound nke PE kwa elekere.Mmepe nke ihe ọhụrụ na-enye aka na-eme ka arụmọrụ nke ọkwa ọhụrụ HDPE dị mma.Ụdị ihe abụọ a na-ejikarị eme ihe bụ Philips 'chromium oxide based catalysts na titanium compound-alkyl aluminum catalysts.HDPE nke Phillips catalyst mepụtara nwere nkesa arọ molekụla dị ọkara obosara;titanium-alkyl aluminum catalyst nwere nkesa arọ molekụla dị warara.A pụkwara iji ihe na-eme ka ihe na-emepụta ihe na-emepụta MDW polymers dị warara na reactor dual iji mepụta akara ule MDW sara mbara.Dịka ọmụmaatụ, reactors abụọ n'usoro nke na-emepụta ngwaahịa dị arọ molekụla dị iche iche nwere ike ịmepụta polymers arọ molecular nke nwere oke nkesa arọ molecular zuru ezu.Ngwakọta ọkpọkọ PE
Ibu molekụla
Ibu arọ molekụla dị elu na-ebute viscosity polymer dị elu, mana viscosity na-emetụtakwa ọnọdụ okpomọkụ na ọnụ ọgụgụ shear ejiri na ule ahụ.A na-eji Rheology ma ọ bụ nha molekụla iji mara ịdị arọ molekụla nke ihe ahụ.Akara ule HDPE n'ozuzu nwere oke molekụla dị arọ nke 40 000 ruo 300 000, na ịdị arọ molekụla dị arọ na-adabara n'ogo nrịbama agbaze, ya bụ, site na 100 ruo 0. 029/10min.N'ozuzu, MW dị elu (ntakịrị mgbaze dị ala MI) na-eme ka ike gbazee, ike siri ike na ESCR, mana MW dị elu na-eme nhazi.
Usoro ahụ siri ike karị ma ọ bụ chọrọ nrụgide dị elu ma ọ bụ okpomọkụ.
Nkesa arọ molecular (MWD): WD nke PE dịgasị iche site na warara ruo n'obosara dabere na ihe na-eme ka a na-eji yana usoro nhazi.
Ndekọ nha nha MWD a na-ejikarị bụ ndenye aha na-adịghị mma (HI), nke ha nhata nha nha molekụla dị arọ (MW) kewara site na ọnụọgụ molekụla nkezi (Mn).Oke ndeksi a maka akara ule HDPE niile bụ 4-30.MWD dị warara na-enye obere warpage na mmetụta dị elu n'oge usoro ịkpụzi.MWD na-ajụ obosara na-enye usoro nhazi maka ọtụtụ usoro extrusion.MWD sara mbara nwekwara ike imeziwanye ike gbazee na nkwụsi ike.
mgbakwunye
Mgbakwunye nke antioxidants nwere ike igbochi mmebi nke polymer n'oge nhazi ma gbochie oxidation nke ngwaahịa emechara n'oge eji.A na-eji ihe mgbakwunye antistatic mee ihe n'ọtụtụ akara nkwakọ ngwaahịa iji belata nrapanye nke karama ma ọ bụ nkwakọ ngwaahịa na uzuzu na unyi.Ngwa dị iche iche chọrọ usoro mgbakwunye pụrụ iche, dị ka ihe mgbochi ọla kọpa metụtara waya na ngwa eriri.Enwere ike nweta nguzogide ihu igwe na mgbochi ultraviolet (ma ọ bụ ìhè anyanwụ) site na ịgbakwunye ihe mgbakwunye mgbochi UV.Na-enweghị mgbakwunye nke UV na-eguzogide ma ọ bụ carbon black PE, a na-atụ aro ka ị ghara ịnọgide na-eji ya n'èzí.Carbon ojii pigmenti dị elu na-enye ezigbo nguzogide UV ma na-ejikarị ngwa n'èzí, dị ka wires, eriri, akwa tank ma ọ bụ ọkpọkọ.
usoro nhazi
Enwere ike ịmepụta PE n'ọtụtụ ụzọ nhazi dị iche iche.Iji ethylene dị ka isi akụrụngwa, propylene, 1-butene, na hexene dị ka copolymer, n'okpuru ọrụ nke ihe na-akpali akpali, a na-anabata slurry polymerization ma ọ bụ gas na-emepụta usoro polymerization, na polymer nwetara na-egbuke egbuke, kewapụrụ, nke a mịrị amị, granulated. , wdg. Usoro nweta okokụre ngwaahịa na edo ahụ.Gụnyere dị ka extrusion mpempe akwụkwọ, ihe nkiri extrusion, ọkpọkọ ma ọ bụ profaịlụ extrusion, ịfụ ịkpụzi, injection ịkpụzi na rotational ịkpụzi.
▲ Extrusion: The ọkwa eji extrusion mmepụta n'ozuzu nwere a gbazee index na-erughị 1 na a ọkara-na-obosara MWD.N'oge nhazi, obere MI nwere ike nweta ike gbazee kwesịrị ekwesị.Mpempe akwụkwọ MWD dị obosara dabara adaba maka extrusion n'ihi na ha nwere oke mmepụta ọsọ ọsọ, nrụgide ọnwụ na-ebelata ma belata mgbawa mgbaji.
PE nwere ọtụtụ ngwa extrusion, dị ka wires, cables, hoses, ọkpọkọ na profaịlụ.Ngwa ọkpọkọ na-esi na ọkpọkọ na-acha odo odo nke obere akụkụ maka ikuku gas ruo na ọkpọkọ ojii nwere mgbidi nwere dayameta nke 48in maka pipeline ụlọ ọrụ na obodo mepere emepe.Ojiji nke ọkpọkọ mgbidi oghere nwere nnukwu dayameta dị ka nnọchi maka ọkpọkọ mmiri ozuzo nke ejiri kọnkịtị na ọwa mmiri ndị ọzọ na-eto ngwa ngwa.
Mpempe akwụkwọ na thermoforming: Ihe mkpuchi okpomọkụ nke ọtụtụ nnukwu friji picnic bụ nke PE, nke siri ike, dị ọkụ na nke na-adịgide adịgide.Mpempe akwụkwọ ndị ọzọ na ngwaahịa thermoformed gụnyere ihe nchekwa apịtị, ihe mkpuchi tank, ihe nchekwa pan, igbe mbupu na tankị.Ọnụ ọgụgụ dị ukwuu nke ngwa ngwa na-eto ngwa ngwa bụ mulch ma ọ bụ ọdọ mmiri n'ime obodo, nke dabeere na ike siri ike, nguzogide kemịkalụ na enweghị ike nke MDPE.
▲ Ịkpụzi ihe: A na-eji ihe karịrị 1/3 nke HDPE ere na United States maka ịkpụzi ihe.Ndị a sitere na karama nwere ịcha ọcha, mmanụ moto, ncha, mmiri ara ehi na mmiri a na-ekpo ọkụ ruo nnukwu friji, tankị mmanụ ụgbọala na ite.Ihe e ji mara nke ịkpụzi akara ule, dị ka ike gbazee, ES-CR na ike siri ike, yiri nke a na-eji maka mpempe akwụkwọ na ngwa thermoforming, ya mere enwere ike iji akara ule ndị yiri ya.
A na-ejikarị ịkpụzi ịgba ọgwụ ogbugba iji mee obere arịa (ihe na-erughị 16oz) maka nkwakọ ngwaahịa ọgwụ, ncha ntutu na ihe ịchọ mma.Otu n'ime uru nke usoro a bụ na a na-akpụzi karama ndị na-emepụta ihe na-akpaghị aka, na-enweghị mkpa maka usoro mmecha dị ka ịkpụzi ihe n'ozuzu.Ọ bụ ezie na a na-eji ụfọdụ akara ule MWD dị warara mee ka ọ dị mma, a na-ejikarị akara ule MWD dị ọkara ma obosara.
▲ Ịkpụzi injection: HDPE nwere ọtụtụ ngwa, sitere na iko ihe ọṅụṅụ nwere mgbidi na-emegharịghachi na mkpọ 5-gsl, nke na-eri 1/5 nke HDPE ụlọ.Nka n'ịkpụzi injection n'ozuzu nwere ihe nrịbama gbazee nke 5-10.Enwere akara ule na ike siri ike na mmiri dị ala na ọkwa mmiri dị elu na nhazi nhazi.Ihe eji eme ihe na-agụnye ihe ndị dị mkpa kwa ụbọchị na nkwakọ nri nwere obere mgbidi;nri siri ike ma na-adịgide adịgide na ite agba;nguzogide dị elu na ngwa mgbawa nrụgide gburugburu ebe obibi, dị ka obere tank mmanụ ụgbọala na ihe mkpofu 90-gal.
▲ Nkpụzi ntụgharị: A na-akụkarị ihe ndị na-eji usoro nhazi a n'ime ihe ntụ ntụ, nke na-agbaze ma na-asọba na okirikiri okpomọkụ.Rotomolding na-eji ụdị abụọ nke PE: ebumnuche izugbe na cross-linkable.Ebumnuche ebumnuche MDPE/HDPE na-enwekarị njupụta sitere na 0.935 ruo 0.945g/CC, yana MWD dị warara, nke mere na ngwaahịa ahụ nwere mmetụta dị elu na obere warpage, yana ndenye agbaze ya na-adịkarị na nso 3-8.Ngụsị akwụkwọ MI dị elu anaghị adabara n'ihi na ha enweghị mmetụta yana mgbawa mgbawa gburugburu ebe a na-atụ anya ngwaahịa rotomolded.
Ngwa ntụgharị ntụgharị dị elu na-eji njirimara pụrụ iche nke akara ule kemịkalụ nwere ike gafere.Ndị a akara ule nwere ezi fluidity na akụkụ mbụ nke ịkpụzi okirikiri, na mgbe ahụ crosslink na-etolite ha magburu onwe gburugburu ebe obibi mgbawa mgbawa mgbochi na siri ike.Yiri nguzogide na iguzogide ihu igwe.Cross-linkable PE kwesịrị ekwesị maka nnukwu arịa, sitere na tankị 500-gal maka ibuga kemịkalụ dị iche iche na tankị ugbo 20,000-gal.
▲ Ihe nkiri: Nhazi ihe nkiri PE na-eji nhazi ihe nkiri nkịtị ma ọ bụ nhazi extrusion dị larịị.A na-eji ọtụtụ PE eme ihe nkiri, PE pere mpe (LDPE) ma ọ bụ PE dị ala (LLDPE) dị.A na-ejikarị akara ngosi HDPE eme ihe ebe a na-achọ ihe ndọtị dị elu na enweghị ike zuru oke.Dịka ọmụmaatụ, a na-ejikarị ihe nkiri HDPE eme ihe maka akpa ngwa ahịa, akpa nri na nkwakọ nri.
Arụmọrụ ngwaahịa
Polyethylene dị elu bụ ihe na-adịghị egbu egbu, enweghị ụtọ na ihe na-esi ísì ụtọ nke nwere ihe na-agbaze ihe dị ka 130 Celsius C yana njupụta nke 0.941 ruo 0.960.Ọ nwere ezigbo nguzogide okpomọkụ na nguzogide oyi, ezigbo nkwụsi ike nke kemịkalụ, nnukwu siri ike na ike siri ike, na ike ọrụ dị mma.Njirimara dielectric na nrụgide mgbawa gburugburu ebe obibi dịkwa mma.
Nkwakọ ngwaahịa na nchekwa
Wepụ na ọkụ na mkpuchi okpomọkụ n'oge nchekwa.Ekwesịrị idowe ụlọ nkwakọba ihe ka ọ kpọọ nkụ ma dozie ya.A machibidoro iwu ịgwakọta na adịghị ọcha ọ bụla, ìhè anyanwụ na mmiri ozuzo.Ekwesịrị ịchekwa ụgbọ njem n'ime ụgbọ ala dị ọcha, nke kpọrọ nkụ, nke kpuchiri ekpuchi ma ọ bụ ụlọ, na enweghị ihe dị nkọ dị ka ntu ígwè.Amachibidoro njem ngwakọta na hydrocarbons aromatic, halogenated hydrocarbons na ihe mgbaze organic ndị ọzọ amachibidoro.
megharịa ma jiri ya mee ihe ọzọ
HDPE bụ akụkụ na-eto ngwa ngwa nke ahịa eji emegharị plastik.Nke a bụ n'ihi na nhazigharị ya dị mfe, njirimara mmebi nke obere na ọnụ ọgụgụ dị ukwuu nke ngwa maka nkwakọ ngwaahịa.Isi ihe eji emegharị ihe bụ imegharị 25% nke ihe eji emegharịgharị, dị ka ihe eji emegharị ndị ahịa post-consumer (PCR), yana HDPE dị ọcha iji mee karama na-adịghị emetụta nri.
Ọkpụkpọ PE maka inye mmiri bụ ngwaahịa nnọchi nke ọkpọkọ ọkpọkọ ọdịnala na ọkpọkọ mmiri mmiri PVC.