Iindaba
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Uhlalutyo malunga notshintsho kwiintlobo zokusetyenziswa kwe-PE Downstream kwixesha elizayo.
Okwangoku, umthamo wokusetyenziswa kwe-polyethylene kwilizwe lam mkhulu, kwaye udidi lweentlobo zemveliso yeplastiki luyinkimbinkimbi kwaye luthengiswa ngokuthe ngqo kubavelisi bemveliso yeplastiki. Yeyomkhiqizo opheleleyo ongaphelelanga kwikhonkco leshishini elisezantsi le-ethylene. Ngokudibene nempembelelo yoxinzelelo lwengingqi lokusetyenziswa kwekhaya, umsantsa wokubonelela kunye nemfuno yengingqi awulingani. Ngokwandiswa okugxininisiweyo kwamandla emveliso yamashishini emveliso ye-polyethylene yelizwe lam kwiminyaka yakutshanje, icala lokubonelela liye landa kakhulu. Kwangaxeshanye, ngenxa yokuphuculwa okuqhubekayo kwemveliso yabemi kunye nemigangatho yokuphila, imfuno yabo iye yanda ngokuthe chu kwiminyaka yakutshanje. Nangona kunjalo, ukususela kwisiqingatha sesibini sowama-202... -
Ziziphi iintlobo ezahlukeneyo zePolypropylene?
Kukho iintlobo ezimbini eziphambili ze-polypropylene ezikhoyo: ii-homopolymers kunye nee-copolymers. Ii-copolymers zahlulwe ngakumbi zibe zii-block copolymers kunye nee-random copolymers. Udidi ngalunye luhambelana nezicelo ezithile ngcono kunezinye. I-Polypropylene idla ngokubizwa ngokuba "yintsimbi" yoshishino lweplastiki ngenxa yeendlela ezahlukeneyo enokuguqulwa okanye ilungiselelwe ngazo ukuze ifeze injongo ethile. Oku kudla ngokufezekiswa ngokungenisa izongezo ezikhethekileyo kuyo okanye ngokuyenza ngendlela ethile. Oku kuguquguquka kuyimpawu ebalulekileyo. I-Homopolymer polypropylene yinqanaba lenjongo ngokubanzi. Ungacinga ngale nto njengemeko engagqibekanga yezinto ze-polypropylene. I-Block copolymer polypropylene ineeyunithi ze-co-monomer ezicwangciswe kwiibhloko (oko kukuthi, kwipateni eqhelekileyo) kwaye iqulethe nayiphi na... -
Zithini iimpawu zePolyvinyl Chloride (PVC)?
Ezinye zezona mpawu zibalulekileyo zePolyvinyl Chloride (PVC) zezi: Uxinano: I-PVC ixinene kakhulu xa ithelekiswa nezinye iiplastiki (ubunzima obuthile obujikeleze i-1.4) Uqoqosho: I-PVC ifumaneka lula kwaye ingabizi kakhulu. Ukuqina: I-PVC eqinileyo ilungelelana kakuhle nokuqina kwayo. Amandla: I-PVC eqinileyo inamandla okutsalwa agqwesileyo. I-Polyvinyl Chloride yinto "ye-thermoplastic" (ngokuchaseneyo ne "thermoset"), enxulumene nendlela iplastiki ephendula ngayo kubushushu. Izinto ze-thermoplastic ziba lulwelo kwindawo yazo yokunyibilika (uluhlu lwe-PVC phakathi kwe-100 degrees Celsius ephantsi kakhulu kunye namaxabiso aphezulu njenge-260 degrees Celsius kuxhomekeke kwizongezo). Uphawu oluphambili oluluncedo malunga ne-thermoplastics kukuba zinokufudunyezwa ziye kwinqanaba lazo lokunyibilika, zipholiswe, kwaye ziphinde zifudunyezwe kwakhona nge... -
Yintoni i-caustic soda?
Kuhambo oluqhelekileyo oluya kwivenkile enkulu, abathengi banokuthi bathenge isepha, bathenge ibhotile ye-aspirin baze bajonge izihloko zamva nje kumaphephandaba nakwiimagazini. Ekuqaleni, kusenokubonakala ngathi ezi zinto azifani kangako. Nangona kunjalo, nganye kuzo, i-caustic soda idlala indima ebalulekileyo kuluhlu lwezithako okanye kwiinkqubo zokuvelisa. Yintoni i-caustic soda? I-caustic soda yi-chemical compound sodium hydroxide (NaOH). Le compound yi-alkali - uhlobo lwesiseko esinokunciphisa ii-asidi kwaye sinyibilike emanzini. Namhlanje i-caustic soda inokwenziwa ngendlela yeepellets, iiflakes, iipowders, izisombululo nokunye. Isetyenziselwa ntoni i-caustic soda? I-caustic soda ibe sisithako esiqhelekileyo kwimveliso yezinto ezininzi zemihla ngemihla. Eyaziwa ngokuba yi-lye, isetyenzisiwe... -
Kutheni iPolypropylene isetyenziswa rhoqo kangaka?
I-Polypropylene isetyenziswa kwiindlela zasekhaya nezemizi-mveliso. Iimpawu zayo ezikhethekileyo kunye nokukwazi kwayo ukuziqhelanisa neendlela ezahlukeneyo zokwenza izinto kuyenza ibonakale njengezinto ezixabisekileyo kwiindlela ezahlukeneyo zokusetyenziswa. Olunye uphawu oluxabisekileyo kukukwazi kwe-polypropylene ukusebenza njengezinto zeplastiki kunye nefayibha (njengezo ngxowa zentengiso ezinikezelwa kwiminyhadala, kwimidyarho, njl.njl.). Ukukwazi kwe-Polypropylene ukwenziwa ngeendlela ezahlukeneyo kunye nokusetyenziswa ngeendlela ezahlukeneyo kuthetha ukuba yaqala ngokukhawuleza ukujongana nezinye izinto ezindala, ngakumbi kumashishini okupakisha, ifayibha, kunye nokubumba injection. Ukukhula kwayo kuye kwaqhubeka iminyaka kwaye ihlala ingumdlali ophambili kushishino lweplastiki kwihlabathi liphela. Kwi-Creative Mechanisms,... -
UChemdo wamenywa ukuba athathe inxaxheba kwingqungquthela eququzelelwe ngokubambisana yiGoogle kunye neGlobal Search.
Idatha ibonisa ukuba kwindlela yokuthengiselana ye-e-commerce yaseTshayina enqumla imida ngo-2021, ukuthengiselana kwe-B2B enqumla imida kube malunga ne-80%. Ngo-2022, amazwe aza kungena kwinqanaba elitsha lokuqheleka kobhubhane. Ukuze kujongwane nempembelelo yobhubhane, ukuqalisa kwakhona komsebenzi kunye nemveliso kuye kwaba ligama elisetyenziswa rhoqo kumashishini asekhaya nangaphandle angenisa kunye nokuthumela ngaphandle. Ukongeza kobhubhane, izinto ezinje ngokunyuka kwamaxabiso ezinto eziluhlaza okubangelwa kukungazinzi kwezopolitiko zasekuhlaleni, ukunyuka okukhulu kwemithwalo yolwandle, ukuvalwa kokungeniswa kwempahla kwiindawo zokufikela, kunye nokuhla kwexabiso leemali ezinxulumene noko okubangelwa kukunyuka kwenzala yedola yaseMelika zonke zinempembelelo kuzo zonke iindlela zorhwebo lwamazwe ngamazwe. Kwimeko enzima kangaka, iGoogle kunye neqabane layo eTshayina, iGlobal Sou, babambe umsitho okhethekileyo... -
Zithini ii-granules ze-PVC?
I-PVC yenye yezona plastiki zisetyenziswa kakhulu kwicandelo leshishini. I-Plasticol, inkampani yase-Itali ekufutshane neVarese ibisenza ii-granules ze-PVC kangangeminyaka engaphezu kwama-50 ngoku kwaye amava aqokelelweyo kule minyaka idlulileyo avumele ishishini ukuba lifumane ulwazi olunzulu kangangokuba ngoku singalusebenzisa ukwanelisa zonke izicelo zabathengi ezibonelela ngeemveliso ezintsha nezithembekileyo. Inyani yokuba i-PVC isetyenziswa kakhulu ekuveliseni izinto ezininzi ezahlukeneyo ibonisa indlela iimpawu zayo zangaphakathi eziluncedo kakhulu kwaye ezikhethekileyo ngayo. Masiqale ukuthetha ngokuqina kwe-PVC: izinto ziqinile kakhulu ukuba zicocekile kodwa ziyaguquguquka xa zidityaniswe nezinye izinto. Olu phawu lwahlukileyo lwenza i-PVC ifaneleke ekuveliseni iimveliso ezisetyenziswa kwiindawo ezahlukeneyo, ukusuka kwisakhiwo esinye ukuya kwesinye... -
I-glitter ebolayo inokutshintsha ishishini lezithambiso.
Ubomi bugcwele iipakethe ezikhazimlayo, iibhotile zokuhombisa, izitya zeziqhamo nokunye okuninzi, kodwa uninzi lwazo zenziwe ngezinto ezinobuthi nezingenakuzinza ezinegalelo kungcoliseko lweplastiki. Kutshanje, abaphandi kwiYunivesithi yaseCambridge e-UK bafumene indlela yokwenza i-glitter ezinzileyo, engenabuthi nenokubola evela kwi-cellulose, ibhloko eyintloko yokwakha iindonga zeeseli zezityalo, iziqhamo kunye nemifuno. Amaphepha anxulumene nayo apapashwe kwijenali i-Nature Materials ngomhla we-11. Yenziwe ngee-nanocrystals ze-cellulose, le glitter isebenzisa umbala wolwakhiwo ukutshintsha ukukhanya ukuvelisa imibala eqaqambileyo. Kwindalo, umzekelo, ukukhanya kwamaphiko ebhabhathane kunye neentsiba zepikoko zizinto ezintle zombala wolwakhiwo, ezingayi kunyamalala emva kwenkulungwane. Ukusebenzisa iindlela zokuzihlanganisa, i-cellulose inokuvelisa ... -
Yintoni iPolyvinyl chloride (PVC) paste Resin?
I-Polyvinyl chloride paste (PVC) paste Resin, njengoko igama lisitsho, kukuba le resin isetyenziswa kakhulu kwimo ye-paste. Abantu badla ngokusebenzisa olu hlobo lwe-paste njenge-plastisol, oluluhlobo olulodwa lolwelo lweplastiki ye-PVC kwimeko yayo engalungiswanga. . Ii-resin ze-paste zihlala zilungiswa nge-emulsion kunye neendlela ze-micro-suspension. I-Polyvinyl chloride paste resin inobukhulu obuncinci be-particle, kwaye ubume bayo bufana ne-talc, kwaye ayishukumi. I-polyvinyl chloride paste resin ixutywa ne-Plasticizer ize ixutywe ukuze yenze i-suspension ezinzileyo, ethi emva koko yenziwe i-PVC paste, okanye i-PVC plastisol, i-PVC sol, kwaye kule fomu abantu basetyenziswa ukucubungula iiMveliso zokugqibela. Kwinkqubo yokwenza i-paste, ii-fillers ezahlukeneyo, ii-diluents, izibambisi zobushushu, ii-foaming agents kunye nezibambisi zokukhanya zongezwa ngokwe ... -
Yintoni iiFilimu zePP?
IIPROPATI I-Polypropylene okanye i-PP yi-thermoplastic ebiza kancinci ecacileyo kakhulu, i-gloss ephezulu kunye namandla amahle okutsalwa. Inendawo yokunyibilika ephezulu kune-PE, nto leyo eyenza ukuba ifaneleke kwizicelo ezifuna ukucoca iintsholongwane kubushushu obuphezulu. Ikwanayo ne-haze encinci kunye ne-gloss ephezulu. Ngokubanzi, iipropati zokuvala ubushushu ze-PP azilunganga njengeze-LDPE. I-LDPE ikwanayo namandla okukrazula angcono kunye nokumelana nefuthe lobushushu obuphantsi. I-PP inokwenziwa ngesinyithi nto leyo ephumela kwiipropati zokuthintela igesi eziphuculweyo kwizicelo ezifuna uncedo apho ubomi beshelufu yemveliso bubalulekile. Iifilimu ze-PP zifanelekile kuluhlu olubanzi lwezicelo zoshishino, zabathengi, kunye nezeemoto. I-PP inokuphinde isetyenziswe ngokupheleleyo kwaye inokuphinda isetyenziswe ngokulula kwezinye iimveliso ezininzi kwiizicelo ezahlukeneyo. Nangona kunjalo, ngaphandle... -
yintoni i-PVC compound?
Iikhompawundi zePVC zisekelwe kudibaniso lwe-PVC polymer RESIN kunye nezongezo ezinika ifomula efunekayo ekusetyenzisweni kokugqibela (iiPipes okanye iiRigid Profiles okanye iiFlexible Profiles okanye iiSheets). Le khompawundi yenziwa ngokudibanisa ngokusondeleyo izithako, ezithi kamva ziguqulwe zibe yinto "efakwe ijeli" phantsi kwempembelelo yobushushu kunye namandla okucheba. Ngokuxhomekeke kuhlobo lwePVC kunye nezongezo, ikhompawundi ngaphambi kokufakwa ijeli inokuba yipowder ehamba ngokukhululekileyo (eyaziwa ngokuba yi-dry blend) okanye ulwelo ngendlela ye-paste okanye isisombululo. Iikhompawundi zePVC xa zenziwe, kusetyenziswa iiplasticizers, zibe zizinto eziguquguqukayo, ezidla ngokubizwa ngokuba yiPVC-P. Iikhompawundi zePVC xa zenziwe ngaphandle kweplasticizer yokusetyenziswa okuqinileyo zibizwa ngokuba yiPVC-U. I-PVC Compounding ingashwankathelwa ngolu hlobo lulandelayo: I-PVC dr... -
Umahluko phakathi kweengxowa zeBOPP, OPP kunye nePP.
Ishishini lokutya lisebenzisa kakhulu iipakethe zeplastiki zeBOPP. Iingxowa zeBOPP kulula ukuziprinta, ukuzigquma kunye nokuzifaka ilaminethi nto leyo eyenza ukuba zilungele ukupakisha iimveliso ezifana neemveliso ezintsha, iilekese kunye nezidlo. Kunye neengxowa zeBOPP, OPP, kunye nePP nazo zisetyenziselwa ukupakisha. I-Polypropylene yipolymer eqhelekileyo phakathi kwezintathu ezisetyenziselwa ukwenza iingxowa. I-OPP imele i-Oriented Polypropylene, i-BOPP imele i-Biaxially Oriented Polypropylene kunye ne-PP imele iPolypropylene. Zonke ezintathu zahlukile kwisimbo sazo sokwenza. I-Polypropylene ekwaziwa ngokuba yi-polypropene yipolymer ye-thermoplastic semi-crystalline. Iqinile, yomelele kwaye inokumelana okuphezulu. Iipokhethi ezimileyo, iipokhethi ze-spout kunye neepokhethi ze-ziplock zenziwe nge-polypropylene. Kunzima kakhulu ukwahlula phakathi kwe-OPP, i-BOPP kunye neepla zePP...