Udidi: Polyethylene
indalo: Ayinancasa, ayinavumba, ayinatyhefu, ayikhazimli, amasuntswana ewaxy amhlophe anobisi anoxinano olumalunga ne-0.920 g/cm3 kunye nendawo yokunyibilika eyi-130℃ ukuya kwi-145℃. Ayinyibiliki emanzini, i-soluble kancinane kwi-hydrocarbons, njl.
Inkqubo yokuvelisa: Kukho iinkqubo ezimbini zokuvelisa: inkqubo ye-tubular ephezulu yoxinzelelo kunye nenkqubo yeketile. Ukuze kuncitshiswe ubushushu bokusabela kunye noxinzelelo, inkqubo ye-tubular generally isebenzisa ubushushu obuphantsi kunye nabaqalisi bomsebenzi ophezulu ukuqalisa inkqubo ye-polymerization. I-ethylene ecocekileyo yeyona nto iphambili, kwaye ipropylene, ipropane, njl. I-polymerization reaction yenziwa phantsi kweemeko ezimalunga ne-200 ℃ ukuya kwi-330 ℃ kunye ne-150 ukuya kwi-300 MPa usebenzisa abaqalisi bomsebenzi ophezulu. Ipolymer etyhidiweyo eqaliswe yipolymerization kwireactor kufuneka ipholiswe kwaye yahlulwe phantsi koxinzelelo oluphezulu, uxinzelelo oluphakathi, kunye noxinzelelo oluphantsi. Igesi ejikelezayo yoxinzelelo oluphezulu ipholile kwaye ihlukaniswe kwaye emva koko ithunyelwe kwi-inlet ye-ultra-high-pressure (300 MPa) compressor. Igesi ejikelezayo yoxinzelelo oluphakathi ipholile kwaye ihlukaniswe kwaye ithunyelwe kwi-inlet ye-high-pressure (30 MPa) i-compressor. Igesi ejikelezayo yoxinzelelo oluphantsi ipholile kwaye ihlulwe kwaye iphinde isetyenziswe yi-compressor ephantsi (0.5 MPa). I-polyethylene etyhidiweyo ihlukaniswe phantsi koxinzelelo oluphezulu kunye noxinzelelo oluphantsi kwaye emva koko ithunyelwe kwi-granulator yokusika amanzi. Ngexesha le-granulation, izongezo ezifanelekileyo zingongezwa ngokwemimandla eyahlukeneyo yesicelo, kwaye iinqununu zipakishwe kwaye zithunyelwe.
Ukusetyenziswa: Inokucutshungulwa ngokubumba inaliti, ukubumba i-extrusion, ukubumba ukuvuthela, njl njl. Isetyenziswa kakhulu njengezolimo.ral ifilimu, ifilimu yokupakisha yemizi-mveliso, ifilimu yokupakisha amayeza kunye nokutya, iinxalenye zoomatshini, iimfuno zemihla ngemihla, izinto zokwakha, iingcingo kunye nentambo yokugquma, iingubo, kunye nephepha lokwenziwa, njl.
Ipeyinti yomgubo wePolyethylene
Ipeyinti yomgubo wePolyethylene lolona hlobo lukhulu kwaye lusetyenziswa kakhulu lwepeyinti yomgubo we-thermoplastic. I-resin egqwesileyo inika isiseko sezinto zokugquma eziphezulu zepeyinti ye-polyethylene powder. Ifilimu yokugqoka ineenzuzo ezilandelayo: a) ukuchasana kwamanzi okugqwesileyo, ukuxhathisa kwe-asidi kunye ne-alkali, ukuxhathisa imichiza, kunye nesantya sokufunxa amanzi ngaphantsi kwe-0.001%; b) ukugqunywa kakuhle kwe-thermal kunye nokufakelwa kombane, akukho kuhlwa kombane; c) ukomelela okugqwesileyo kokuqina, ukuguquguquka, kunye nokuxhathisa impembelelo; d) ukuchasana kakuhle kweqondo lokushisa eliphantsi, akukho kuphazamiseka kwi-40 ℃ ngaphezu kwe-400h, ingasetyenziselwa kwindawo ebandayo yasemantla; e) ixabiso eliphantsi lemathiriyeli ekrwada, engenatyhefu.
Olu hlobo lwepeyinti yomgubo lunika ifilimu yokwambathisa umgangatho obalaseleyo, ukuthamba, kunye nokuziva kwe-waxy. Xa ifilimu yokugubungela i-polyethylene powder ipeyinti idibana ne-solvents ethile okanye i-detergents, iya kuphuka ngokukhawuleza ngenxa yokuphazamiseka kwengcinezelo. Ngokuqhelekileyo, ezinye iintlobo ze-resin zisetyenziselwa ukuguqula i-polyethylene resin, ukuphucula kakhulu iimpawu zemishini yepeyinti ye-polyethylene powder, ukuphucula ukunamathela kwayo kwi-substrate, kunye nokukhuthaza ukuphuhliswa kolu hlobo lokugquma, ukwandisa kakhulu imimandla yesicelo sayo.
Iindlela zokuphuhliswa kwexesha elizayo ze-polyethylene powder coating
I-Polyethylene powder yinto ebaluleke kakhulu yokwenziwa, eyikhompawundi yepolymer eyenziwe kwi-ethylene monomer kwaye isetyenziswa ngokubanzi ekwenzeni iimveliso zeplastiki, iifayili, izikhongozeli, imibhobho, iingcingo, iintambo kunye nezinye iindawo. Ngokungeniswa ngokuqhubekayo kwezinto ezintsha kunye nobuchwepheshe obutsha, ukusetyenziswa kwepowlethylene powder kwanda. Iindlela zophuhliso kwixesha elizayo ziya kuba ngolu hlobo lulandelayo: 1. Umzila wohlaza kunye nokhuseleko lokusingqongileyo: Ngokunyuka kolwazi ngokhuseleko lwendalo esingqongileyo, indlela yophuhliso lohlaza nokusingqongileyo.Funda ngokugqithisileyo …
Ithini ikhowudi ye-HS ye-polyethylene powder coating?
Ukuqaliswa kwekhowudi ye-HS ye-polyethylene powder yokugqoka i-HS CODE sisishunqulelo se-"Harmonized Commodity Description and Coding System". I-Harmonization System Code (HS-Code) yenziwe yi-International Customs Council kunye negama lesiNgesi yi-Harmonization System Code (HS-Code). Izinto ezisisiseko zokungena kunye nolawulo lokuphuma kwee-arhente zamazwe ngamazwe ukuqinisekisa iindidi zempahla yorhwebo, ukulawula ukuhlelwa kweemveliso, ukuphonononga imigangatho yoluhlu lweerhafu, kunye nokuhlola iimpawu zomgangatho wempahla zorhwebo zizatifikethi zesazisi eziqhelekileyo zokungeniswa kwamanye amazwe.Funda ngokugqithisileyo …
Ithini inombolo ye-CN ye-polyethylene powder?
Inombolo ye-CN yomgubo we-polyethylene: 3901 Iipolymers ze-ethylene, kwiifom eziphambili: 3901.10 I-Polyethylene enobunzima obuthile obungaphantsi kwe-0,94: -3901.10.10 I-polyethylene ye-Linear -3901.10.90 Enye i-3901.20. okanye ngaphezulu: —-0,94 Polyethylene kwenye yeefom ezikhankanywe kwinqaku 3901.20.10(b) kwesi sahluko, womxhuzulane othile we-6 okanye ngaphezulu kwi-0,958 °C, equlathe: 23 mg/kg okanye ngaphantsi kwe-aluminium, 50 mg / kg okanye ngaphantsi kwe-calcium, 2 mg / kg okanyeFunda ngokugqithisileyo …
Yintoni iPaint yePolyethylene
Ipeyinti yePolyethylene, ekwabizwa ngokuba ziingubo zeplastiki, ziingubo ezifakwa kwizinto zeplastiki. Kwiminyaka yakutshanje, iingubo zeplastiki zisetyenziswe ngokubanzi kwifowuni ephathwayo, iTV, ikhomputha, imoto, izixhobo zesithuthuthu kunye namanye amasimi, anjengendawo yangaphandle yemoto kunye nangaphakathi. Amacandelo, iingubo zeplastiki zikwasetyenziswa ngokubanzi kwimidlalo kunye nezixhobo zokuzonwabisa, ukupakishwa kwezinto zokuthambisa, kunye nezinto zokudlala. I-Thermoplastic acrylate resin coatings, i-thermosetting acrylate-polyurethane resin modified coatings, i-chlorinated polyolefin yokuguqulwa kwengubo, i-polyurethane eguquliweyo kunye nezinye iintlobo, phakathi kwazo iingubo ze-acrylic.Funda ngokugqithisileyo …
Yintoni iPolyethylene yoXinano oluPhezulu
I-polyethylene ephezulu (HDPE), ipowder emhlophe okanye imveliso yegranular. I-non-toxic, i-tasteless, i-crystallinity ye-80% ukuya kwi-90%, i-softening point ye-125 ukuya kwi-135 ° C, sebenzisa ubushushu ukuya kwi-100 ° C; ubunzima, amandla okuqina kunye ne-ductility kungcono kune-polyethylene ephantsi yoxinaniso; Ukumelana nokunxiba, umbane Ugqunywe kakuhle, ukuqina kunye nokumelana nokubanda; Uzinzo oluhle lweekhemikhali, olungenakunyibilika kuyo nayiphi na i-solvent ye-organic kwiqondo lokushisa, ukuxhatshazwa kwe-corrosion ye-asidi, i-alkali kunye neetyuwa ezahlukeneyo; ifilimu encinci ukufikeleleka kumphunga wamanzi kunye nomoya, ukufunxa kwamanzi okuphantsi; ukunganyangeki ukwaluphala,Funda ngokugqithisileyo …
Yintoni iNkqubo yeMveliso yePolyethylene
Inkqubo yokuvelisa i-polyethylene inokwahlulwa ibe: Indlela yoxinzelelo oluphezulu, indlela yoxinzelelo oluphezulu isetyenziselwa ukuvelisa i-polyethylene ephantsi. Uxinzelelo oluphakathi Indlela yoxinzelelo oluphantsi. Ngokubhekiselele kwindlela yoxinzelelo oluphantsi, kukho indlela ye-slurry, indlela yesisombululo kunye nendlela yesigaba segesi. Indlela yoxinzelelo oluphezulu isetyenziselwa ukuvelisa i-polyethylene ephantsi. Le ndlela yaphuhliswa kwangoko. I-polyethylene eveliswa yile ndlela yenza malunga ne-2/3 yemveliso epheleleyo ye-polyethylene, kodwaFunda ngokugqithisileyo …
Yintoni iPolyethylene eGuquliweyo?
Yintoni iPolyethylene eGuquliweyo? Iindidi ezilungisiweyo ze-polyethylene ikakhulu ziquka i-polyethylene e-chlorine, i-chlorosulfonated polyethylene, i-polyethylene edibeneyo kunye neentlobo eziguquliweyo ezixutywe. I-Chlorinated Polyethylene: I-chloride engacwangciswanga efunyenwe ngokutshintsha ngokuyinxenye iiathom ze-hydrogen kwi-polyethylene nge-chlorine. I-Chlorination iqhutyelwa phantsi kokuqaliswa kokukhanya okanye i-peroxide, kwaye iveliswa ngokuyinhloko yindlela yokumiswa kwamanzi kumashishini. Ngenxa yomahluko kubunzima bemolekyuli kunye nokusabalalisa, idigri ye-branching, idigri ye-chlorination emva kwe-chlorination, ukuhanjiswa kwe-athomu yeklorini kunye ne-crystallinity eseleyoFunda ngokugqithisileyo …
IiPropati zeMzimba kunye nezeMichiza yePolyethylene Resin
IiPropathi zePhysical kunye nezeMichiza yePolyethylene Resin Chemical Properties I-Polyethylene inozinzo olululo lweekhemikhali kwaye iyaxhathisa ukungxenga i-nitric acid, i-dilute sulfuric acid kunye naluphi na uxinaniso lwe-hydrochloric acid, i-hydrofluoric acid, i-phosphoric acid, i-asidi ye-fomic, i-acetic acid, amanzi e-ammonia, i-amines, i-hydrogen. i-peroxide, i-sodium hydroxide, i-potassium hydroxide, njl. Kodwa ayixhathisi kwi-corrosion eyomeleleyo ye-oxidative, efana ne-fuming sulfuric acid, i-nitric acid egxininisiweyo, i-chromic acid kunye nomxube we-sulfuric acid. Kwiqondo lobushushu begumbi, i-solvents ekhankanywe ngasentla iya kuhamba kancinciFunda ngokugqithisileyo …
Yintoni iGeneral Iipropati zePolyethylene Resin
General Iipropathi zePolyethylene Resin Polyethylene resin ayiyotyhefu, umgubo omhlophe ongenavumba okanye igranule, umhlophe omhlophe ngenkangeleko, unemvakalelo efana newax, kunye nokufunxa kwamanzi aphantsi, ngaphantsi kwe-0.01%. Ifilimu ye-polyethylene ibonakala kwaye iyancipha ngokunyuka kwe-crystallinity. Ifilimu ye-polyethylene ine-permeability yamanzi ephantsi kodwa i-air permeability ephezulu, engafanelanga ukupakishwa okutsha kodwa ilungele ukupakishwa kobumanzi. Inokutsha, kunye nesalathisi se-oksijeni ye-17.4, umsi ophantsi xa utshisa, inani elincinciFunda ngokugqithisileyo …
Ukuhlelwa kwePolyethylene
Ukwahlula kwe-polyethylene I-Polyethylene ihlukaniswe kwi-polyethylene ephezulu (i-HDPE), i-polyethylene ephantsi (i-LDPE) kunye ne-linear low density polyethylene (LLDPE) ngokwendlela ye-polymerization, ubunzima be-molecular kunye nesakhiwo sekhonkco. Iimpawu ze-LDPE: azinancasa, azinavumba, azinatyhefu, umphezulu ongeyotyhefu, amasuntswana e-waxy angathi lubisi, ukuxinana malunga ne-0.920 g/cm3, indawo yokunyibilika yi-130℃～145℃. Ayinyibiliki emanzini, ayinyibiliki kancinane kwiihydrocarbons, njl. njl. Iyakwazi ukumelana nokhukuliseko lweeasidi ezininzi kunye neealkali, inokufunxeka kwamanzi aphantsi, isenakho ukugcina ukuguquguquka kumaqondo obushushu aphantsi, kwaye inokumelana nokhukuliseko lweeasidi ezininzi kunye neealkali.Funda ngokugqithisileyo …
Intshayelelo emfutshane yePolyethylene Resin
Intshayelelo emfutshane yePolyethylene Resin Polyethylene (PE) yintlaka ye-thermoplastic efunyenwe nge-polymerizing ethylene. Kwishishini, ii-copolymers ze-ethylene ezinexabiso elincinci le-alpha-olefins nazo zibandakanyiwe. Intlaka yepolyethylene ayinavumba, ayinatyhefu, ivakala ngathi ngumthwebeba, inokumelana nobushushu obuphantsi kakhulu (ubuncinci bobushushu bokusebenza bunokufikelela ku-100~-70°C), uzinzo olululo lwekhemikhali, kwaye inokumelana nokhukuliseko lweasidi kunye nealkali (ayikwazi ukumelana ne-oxidation). iasidi yendalo). Ayinyibiliki kwizinyibilikisi eziqhelekileyo kubushushu begumbi, ngokufunxa amanzi aphantsi kunye nombane obalaseleyoFunda ngokugqithisileyo …