Cikakken Bayani
Takardar bayanai:EI042502KK
Matsakaicin diamita: 12mm-110mm
Matsa lamba: 0.25Mpa, 0.4Mpa, 0.6Mpa
Dace iya: Matsakaici da high matsa lamba ban ruwa bututu amfani da karkashin kasa sassa na
manyan bututu kamar bututu ban ruwa, micro-sprinkler ban ruwa;ƙananan matsi na ban ruwa bututu iya
Za a yi amfani da bututun reshe na ban ruwa na bututu, ban ruwa na sprinkler, drip ban ruwa tsarin.
Yanayin zafin jiki: 0-45 ℃
Yanayin haɗi: An haɗa shi ta hanyar haɗi mai sauri.
Dayu Water Saving Group Co., Ltd an kafa shi ne a shekarar 1999. Kamfani ce mai fasahar kere-kere ta kasa da ta dogara da kwalejin kimiyyar ruwa ta kasar Sin, cibiyar bunkasa kimiyya da fasaha ta ma'aikatar albarkatun ruwa, da kwalejin kimiyyar kasar Sin. Kwalejin Injiniya ta kasar Sin da sauran cibiyoyin binciken kimiyya.An jera akan Kasuwar Kasuwancin Ci gaba.Lambar hannun jari: 300021. An kafa kamfanin tsawon shekaru 20 kuma koyaushe yana mai da hankali da sadaukar da kai ga mafita da sabis na noma, yankunan karkara da albarkatun ruwa.Ya bunƙasa cikin tarin tanadin ruwan noma, samar da ruwan sha na birni da ƙauye, kula da najasa, harkokin ruwa mai wayo, haɗin tsarin ruwa, kula da muhallin ruwa da maido da sauran fannoni.Mai ba da mafita na tsarin ƙwararru don dukan sarkar masana'antu da ke haɗa shirye-shiryen aikin, ƙira, saka hannun jari, gini, aiki, gudanarwa da sabis na kulawa.Wannan dai shi ne karo na farko da masana'antar ta samu a fannin ceton ruwan noma a kasar Sin, kuma ta zama jagora a duniya.
Polyethylene mai girma, sunan Ingilishi shine "High Density Polyethylene", ko "HDPE" a takaice.HDPE babban crystalline ne, guduro na thermoplastic mara iyaka.Siffar HDPE ta asali fari ce mai madara, kuma ɓangaren bakin ciki yana da jujjuyawa zuwa wani ɗan lokaci.PE yana da kyakkyawan juriya ga yawancin sinadarai na gida da masana'antu.Wasu nau'o'in sinadarai na iya haifar da lalatawar sinadarai, irin su oxidants masu lalata (maƙarƙashiya nitric acid), hydrocarbons aromatic (xylene) da halogenated hydrocarbons (carbon tetrachloride).Polymer ba shi da hygroscopic kuma yana da kyakkyawan juriya na tururin ruwa, kuma ana iya amfani dashi don dalilai na marufi.HDPE yana da kyawawan kaddarorin lantarki, musamman ma babban ƙarfin dielectric na rufi, yana sa ya dace da wayoyi da igiyoyi.Matsakaici zuwa manyan ƙwayoyin ƙwayoyin cuta masu nauyi suna da kyakkyawan yanayin juriya, ko da a zazzabi a ɗakin kuma har ma a yanayin zafi na -40f.
HDPE shine polyolefin thermoplastic da aka samar ta hanyar copolymerization na ethylene.Kodayake an ƙaddamar da HDPE a cikin 1956, wannan filastik bai kai matakin balagagge ba.Wannan abu na gaba ɗaya yana haɓaka sabbin amfaninsa da kasuwanni.
Babban fasali
HDPE shine resin thermoplastic mara iyaka tare da babban crystallinity.Siffar HDPE ta asali fari ce mai madara, kuma ɓangaren bakin ciki yana da jujjuyawa zuwa wani ɗan lokaci.PE yana da kyakkyawan juriya ga yawancin sinadarai na gida da masana'antu.Wasu nau'o'in sinadarai na iya haifar da lalatawar sinadarai, irin su oxidants masu lalata (maƙarƙashiya nitric acid), hydrocarbons aromatic (xylene) da halogenated hydrocarbons (carbon tetrachloride).Polymer ba shi da hygroscopic kuma yana da kyakkyawan juriya na tururin ruwa, kuma ana iya amfani dashi don dalilai na marufi.HDPE yana da kyawawan kaddarorin lantarki, musamman ma babban ƙarfin dielectric na rufi, yana sa ya dace da wayoyi da igiyoyi.Matsakaici zuwa manyan ƙwayoyin ƙwayoyin cuta masu nauyi suna da kyakkyawan yanayin juriya, ko da a zazzabi a ɗakin kuma har ma a yanayin zafi na -40f.Halaye na musamman na nau'o'i daban-daban na HDPE sune daidaitattun haɗin kai na asali guda huɗu: yawa, nauyin kwayoyin halitta, rarraba nauyin kwayoyin halitta da ƙari.Ana amfani da masu haɓakawa daban-daban don samar da polymers na musamman tare da kaddarorin musamman.Haɗin waɗannan masu canji suna samar da maki HDPE don dalilai daban-daban;samun mafi kyawun ma'auni a cikin aiki.
yawa
Wannan shine babban maɓalli wanda ke ƙayyade halayen HDPE, kodayake masu canji guda huɗu da aka ambata suna shafar juna.Ethylene shine babban albarkatun kasa na polyethylene.Wasu 'yan wasu masu haɗin gwiwa, irin su 1-butene, 1-hexene ko 1-octene, ana amfani da su don haɓaka aikin polymer.Don HDPE, abubuwan da ke cikin ƴan monomers na sama gabaɗaya baya wuce 1% -2%.Bugu da kari na comomer dan kadan rage crystallinity na polymer.Gabaɗaya ana auna wannan canjin ta hanyar yawa, wanda ke da alaƙar layi tare da crystallinity.Babban rarrabuwa na Amurka yana daidai da ASTM D1248, kuma yawan HDPE shine 0.940g/.Sama C;Matsakaicin yawa na MDPE shine 0.926 ~ 0.940g/CC.Wasu rarrabuwa wasu lokuta suna rarraba MDPE azaman HDPE ko LLDPE.Homopolymers suna da mafi girman yawa, mafi girman taurin kai, kyawawa mai kyau da mafi girman narkewa, amma gabaɗaya suna da ƙarancin juriya ga fatattaka damuwa na muhalli (ESCR).ESCR shine ikon PE don tsayayya da fashewar da ya haifar da damuwa na inji ko sinadarai.Maɗaukakin girma gabaɗaya yana haɓaka ƙarfin injina, kamar ƙarfin ɗaure, tauri, da taurin;Properties na thermal kamar taushi batu zafin jiki da zafi murdiya zazzabi;da rashin cikawa, irin su iskar iska ko tururin ruwa.Ƙananan yawa yana inganta ƙarfin tasirin sa da E-SCR.Yawan yumbura ya fi shafa ta hanyar ƙari na comonomers, amma kaɗan ta hanyar nauyin kwayoyin halitta.Maɗaukakin nauyin ƙwayoyin ƙwayoyin cuta yana rage yawa kaɗan.Misali, homopolymers suna da nau'i daban-daban a cikin kewayon ma'aunin kwayoyin halitta.
Production da kuma kara kuzari
Mafi yawan hanyar samar da PE shine ta hanyar slurry ko sarrafa lokaci na gas, kuma an samar da wasu ta hanyar sarrafa lokaci.Duk waɗannan matakai sune halayen exothermic da suka haɗa da ethylene monomer, monomer a-olefin, tsarin haɓakawa (zai iya zama fiye da fili ɗaya) da nau'ikan diluents na hydrocarbon iri-iri.Ana amfani da hydrogen da wasu abubuwa masu kara kuzari don sarrafa nauyin kwayoyin halitta.A slurry reactor gabaɗaya tanki ne mai zugawa ko kuma mafi yawan amfani da babban sikelin madauki reactor wanda za'a iya zagayawa da motsa slurry.Lokacin da ethylene da comonomer (kamar yadda ake buƙata) sun shiga cikin hulɗa tare da mai kara kuzari, ƙwayoyin polyethylene suna samuwa.Bayan cire diluent, polyethylene granules ko foda granules an bushe kuma an ƙara abubuwan da aka ƙara bisa ga sashi don samar da pellets.Layin samarwa na zamani tare da manyan reactors tare da tagwayen dunƙule extruders na iya samar da fiye da fam 40,000 na PE a kowace awa.Haɓaka sabbin abubuwan haɓakawa suna ba da gudummawa don haɓaka aikin sabbin maki na HDPE.Nau'o'in masu haɓakawa da aka fi amfani da su guda biyu sune na'urorin haɗin gwiwar chromium oxide na Philips da titanium fili-alkyl aluminum catalysts.HDPE wanda mai haɓakawa Phillips ya samar yana da matsakaicin matsakaicin matsakaicin matsakaicin girman rabon kwayoyin;titanium-alkyl aluminum mai kara kuzari yana da kunkuntar rarraba nauyin kwayoyin halitta.Hakanan ana iya amfani da mai kara kuzari da aka yi amfani da shi wajen samar da kunkuntar polymers na MDW a cikin reactor biyu don samar da maki MDW mai fadi.Misali, reactors guda biyu a cikin jerin waɗanda ke samar da samfuran nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan mahimmanci daban-daban na iya samar da nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan rarrabawa.PE bututu kayan aiki
Nauyin kwayoyin halitta
Maɗaukakin nauyin kwayoyin halitta yana haifar da danƙon polymer mafi girma, amma danko kuma yana da alaƙa da zafin jiki da ƙimar da aka yi amfani da shi a gwajin.Rheology ko ma'aunin nauyin kwayoyin halitta ana amfani da shi don siffanta nauyin kwayoyin halitta na kayan.Makilolin HDPE gabaɗaya suna da kewayon nauyin kwayoyin halitta daga 40 000 zuwa 300 000, kuma matsakaicin nauyin ƙwayoyin ƙwayoyin cuta ya yi daidai da kewayon narke, wato daga 100 zuwa 0. 029/10min.Gabaɗaya, MW mafi girma (ƙananan narke index MI) yana haɓaka ƙarfin narkewa, mafi kyawun ƙarfi da ESCR, amma MW mafi girma yana yin aiki
Tsarin ya fi wahala ko yana buƙatar matsa lamba ko zafin jiki.
Rarraba nauyin kwayoyin halitta (MWD): WD na PE ya bambanta daga kunkuntar zuwa fadi dangane da abin da ake amfani da shi da kuma tsarin sarrafawa.
Fihirisar ma'aunin MWD da aka fi amfani da ita ita ce ma'aunin rashin daidaituwa (HI), wanda yayi daidai da matsakaicin nauyin kwayoyin halitta (MW) wanda aka raba da matsakaicin adadin kwayoyin (Mn).Wannan kewayon kewayon duk matakan HDPE shine 4-30.MWD kunkuntar tana ba da ƙarancin warpage da babban tasiri yayin aiwatar da gyare-gyare.Matsakaici zuwa fadi MWD yana ba da damar aiwatarwa don yawancin matakai na extrusion.Faɗin MWD kuma yana iya haɓaka ƙarfin narkewa da juriya mai raɗaɗi.
ƙari
Bugu da ƙari na antioxidants na iya hana lalatawar polymer yayin aiki da kuma hana iskar oxygen da aka gama a lokacin amfani.Ana amfani da abubuwan da ake ƙara antistatic a cikin marufi da yawa don rage mannewar kwalabe ko marufi zuwa ƙura da datti.Ƙayyadaddun aikace-aikace na buƙatar ƙirar ƙira ta musamman, kamar masu hana jan ƙarfe masu alaƙa da aikace-aikacen waya da na USB.Kyakkyawan juriya na yanayi da anti-ultraviolet (ko hasken rana) ana iya samun su ta hanyar ƙara abubuwan da ke hana UV.Ba tare da ƙari na UV-resistant ko carbon baƙar fata PE, ana ba da shawarar kada a ci gaba da amfani da shi a waje.Babban darajar carbon baƙar fata pigments suna ba da kyakkyawan juriya na UV kuma galibi ana amfani da su a aikace-aikacen waje, kamar wayoyi, igiyoyi, yadudduka na tanki ko bututu.
hanyoyin sarrafawa
Ana iya kera PE a cikin nau'ikan hanyoyin sarrafawa daban-daban.Yin amfani da ethylene a matsayin babban kayan albarkatun kasa, propylene, 1-butene, da hexene a matsayin copolymer, a karkashin aikin mai kara kuzari, ana ɗaukar slurry polymerization ko gas lokaci polymerization tsari, kuma polymer da aka samu yana walƙiya, rabu, bushe, granulated. , da dai sauransu. Tsari don samun ƙãre kayayyakin da uniform barbashi.Ciki har da irin su extrusion takarda, extrusion fim, bututu ko extrusion profile, busa gyare-gyare, gyare-gyaren allura da gyaran fuska.
▲ Extrusion: A sa da ake amfani da extrusion samar kullum yana da narke index kasa da 1 da matsakaici-to-fadi MWD.Yayin aiki, ƙananan MI na iya samun ƙarfin narkewa mai dacewa.Faɗin maki na MWD sun fi dacewa da extrusion saboda suna da saurin samarwa, rage matsananciyar mutuwa da rage yanayin karyewar narkewa.
PE yana da aikace-aikacen extrusion da yawa, kamar wayoyi, igiyoyi, hoses, bututu da bayanan martaba.Aikace-aikacen bututu suna fitowa daga ƙananan bututun rawaya don iskar gas zuwa bututun baƙar fata masu kauri mai kauri da diamita na 48in don bututun masana'antu da na birni.Amfani da manyan bututun bangon bango mai girman diamita a madadin bututun ruwan ruwan sama da aka yi da siminti da sauran bututun magudanar ruwa na girma cikin sauri.
Sheet and thermoforming: Rufin thermoforming na manyan firiji masu yawa an yi shi da PE, wanda yake da tauri, haske da dorewa.Sauran samfuran takarda da na'urorin da aka ƙera sun haɗa da laka, tankuna, masu gadin kwanon rufi, akwatunan jigilar kaya da tankuna.Babban adadin aikace-aikacen takarda mai saurin girma shine ciyawa ko ƙauyuka na kandami, waɗanda suka dogara da ƙarfi, juriya da sinadarai da rashin ƙarfi na MDPE.
▲ Yin gyare-gyare: Fiye da 1/3 na HDPE da ake sayar da su a Amurka ana amfani da su don gyaran busa.Wadannan sun hada da kwalabe masu dauke da bleach, man mota, wanka, madara da ruwa mai tsafta zuwa manyan firij, tankunan mai na mota da gwangwani.Halayen busa gyare-gyaren maki, kamar ƙarfin narkewa, ES-CR da tauri, sun yi kama da waɗanda aka yi amfani da su don aikace-aikacen takarda da thermoforming, don haka ana iya amfani da maki iri ɗaya.
Ana amfani da gyare-gyaren allura don yin ƙananan kwantena (kasa da oz 16) don ɗaukar magunguna, shamfu da kayan kwalliya.Ɗaya daga cikin fa'idodin wannan tsari shine cewa ana gyara kwalabe na samarwa ta atomatik, ba tare da buƙatar matakai na ƙarshe ba kamar gyare-gyare na gaba ɗaya.Kodayake ana amfani da wasu kunkuntar maki na MWD don inganta ƙarewar ƙasa, matsakaici zuwa faɗin maki na MWD gabaɗaya ana amfani da su.
▲ Gyaran allura: HDPE yana da aikace-aikace marasa adadi, kama daga kofuna na bakin ciki mai katanga da za a sake amfani da su zuwa gwangwani 5-gsl, waɗanda ke cinye 1/5 na HDPE na gida.Makin gyare-gyaren allura gabaɗaya suna da ma'aunin narkewa na 5-10.Akwai maki tare da tauri da ƙananan ruwa da mafi girma matakan ruwa tare da aiwatarwa.Abubuwan amfani sun haɗa da abubuwan buƙatun yau da kullun da marufi na bakin ciki na abinci;abinci mai tauri da ɗorewa da gwangwani fenti;babban juriya ga aikace-aikacen fatattakar damuwa na muhalli, kamar ƙananan tankunan man inji da gwangwani 90-gal.
▲ Yin gyare-gyaren juyawa: Abubuwan da ke amfani da wannan hanyar sarrafa su gabaɗaya ana niƙa su su zama kayan foda, waɗanda suke narke kuma suna gudana cikin zagayowar thermal.Rotomolding yana amfani da nau'ikan PE guda biyu: manufa ta gaba ɗaya da haɗin kai.Babban manufar MDPE/HDPE yawanci yana da yawa daga 0.935 zuwa 0.945g/CC, tare da kunkuntar MWD, ta yadda samfurin yana da babban tasiri da ƙarancin warpage, kuma index ɗin narke gabaɗaya yana cikin kewayon 3-8.Maɗaukakin maki MI gabaɗaya ba su dace ba saboda ba su da tasiri da juriyar tsagawar muhalli da ake tsammanin samfuran rotomolded.
Aikace-aikacen gyare-gyaren jujjuya aiki mai girma yana amfani da keɓaɓɓen kaddarorin makin sa na haɗe-haɗe da sinadarai.Waɗannan maki suna da ruwa mai kyau a ɓangaren farko na sake zagayowar gyare-gyaren, sa'an nan kuma haɗe-haɗe don samar da kyakkyawan juriya na damuwa na muhalli da tauri.Saka juriya da juriya na yanayi.Cross-linkable PE kawai ya dace da manyan kwantena, kama daga tankuna 500-gal don jigilar sinadarai daban-daban zuwa tankunan aikin gona 20,000-gal.
▲Fim: PE film sarrafa kullum yana amfani da talakawa hura film sarrafa ko lebur extrusion sarrafa.Yawancin PE ana amfani da su don fim, PE mai ƙarancin ƙima (LDPE) ko ƙananan ƙarancin PE (LLDPE) suna samuwa.Ana amfani da makin fim na HDPE gabaɗaya inda ake buƙatar mafi kyawun shimfidawa da ingantaccen rashin ƙarfi.Misali, ana yawan amfani da fim na HDPE don buhunan kayayyaki, buhunan kayan miya da kayan abinci.
Ayyukan samfur
Maɗaukakin polyethylene ba mai guba ba ne, mara ɗanɗano, kuma fararen barbashi marasa wari tare da ma'anar narkewar kusan 130 ° C da ƙarancin dangi na 0.941 zuwa 0.960.Yana da kyakkyawan juriya na zafi da juriya mai sanyi, kyakkyawan kwanciyar hankali na sinadarai, babban ƙarfi da ƙarfi, da ƙarfin injina mai kyau.Dielectric Properties da muhalli danniya fatattaka juriya ma da kyau.
Marufi da ajiya
Ka nisantar da wuta da rufin zafi yayin ajiya.Yakamata a ajiye rumbun ajiya a bushe da tsabta.An haramta shi sosai a gauraya kowane datti, hasken rana da ruwan sama.Ya kamata a adana sufuri a cikin tsabta, busassun, rufaffiyar karusai ko dakuna, kuma kada a sami abubuwa masu kaifi kamar kusoshi na ƙarfe.Haɗaɗɗen sufuri tare da hydrocarbons masu kamshi, halogenated hydrocarbons da sauran abubuwan kaushi na halitta an hana su sosai.
sake sake yin amfani da su
HDPE shine ɓangaren haɓaka mafi sauri na kasuwar sake amfani da filastik.Wannan ya samo asali ne saboda sauƙin sarrafa shi, ƙananan halayen lalata da kuma yawan aikace-aikacen sa don dalilai na marufi.Babban sake yin amfani da shi shine a sake sarrafa kashi 25% na kayan da aka sake fa'ida, kamar masu sake amfani da su bayan-masu amfani (PCR), tare da tsantsar HDPE don yin kwalabe waɗanda ba su da alaƙa da abinci.
Bututun PE don samar da ruwa sune samfuran maye gurbin bututun ƙarfe na gargajiya da bututun ruwan sha na PVC.
