Iindaba zeshishini
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Isitulo esiprintiweyo se-3D ye-polylactic acid ephazamisa ukucinga kwakho.
Kwiminyaka yakutshanje, itekhnoloji yoshicilelo ye-3D inokubonwa kwiinkalo ezahlukeneyo zemizi-mveliso, njengempahla, iimoto, ulwakhiwo, ukutya, njalo njalo, zonke zinokusebenzisa itekhnoloji yoshicilelo ye-3D. Ngapha koko, itekhnoloji yoshicilelo ye-3D yasetyenziswa kwimveliso eyongeziweyo kwiintsuku zokuqala, kuba indlela yayo yokulinganisa ngokukhawuleza inokunciphisa ixesha, amandla kunye nokusetyenziswa kwemathiriyeli ekrwada. Nangona kunjalo, njengoko iteknoloji ikhula, umsebenzi woshicilelo lwe-3D awugcini nje ngokunyuka. Usetyenziso olubanzi lwetekhnoloji yoshicilelo lwe-3D lunabela kwifanitshala ekufutshane kubomi bakho bemihla ngemihla. Itekhnoloji yoshicilelo ye-3D itshintshe inkqubo yokwenziwa kwefenitshala. Ngokwemveli, ukwenza ifenitshala kufuna ixesha elininzi, imali kunye nabasebenzi. Emva kokuba iprototype yemveliso ivelisiwe, kufuneka ihlale ivavanywa kwaye iphuculwe. Ho... -
Uhlahlelo kwiiNguquko ze-PE Downstream Consumption ezahlukeneyo kwixesha elizayo.
Okwangoku, umthamo wokusetyenziswa kwe-polyethylene kwilizwe lam likhulu, kwaye ukuhlelwa kweentlobo ezisezantsi zinzima kwaye zithengiswa ngokuthe ngqo kubavelisi bemveliso yeplastiki. Yeyokuba inxenye yemveliso iphelela kumjelo osezantsi we-ethylene. Xa kudityaniswa nempembelelo yoxinzelelo lwengingqi yosetyenziso lwasekhaya, unikezelo lwengingqi kunye ne-gap yemfuno ayilingani. Ngokwandiswa okugxininisiweyo komthamo wemveliso welizwe lam loshishino lwepolyethylene phezulu kumlambo kwiminyaka yakutshanje, icala lokubonelela liye landa kakhulu. Kwangaxeshanye, ngenxa yokuphuculwa okuqhubekayo kwemveliso yabahlali kunye nemigangatho yokuphila, imfuno yabo iye yanda ngokuthe ngcembe kwiminyaka yakutshanje. Nangona kunjalo, ukususela kwisiqingatha sesibini se-202 ... -
Ziziphi iintlobo ezahlukeneyo zePolypropylene?
Kukho iintlobo ezimbini eziphambili zepolypropylene ezikhoyo: i-homopolymers kunye ne-copolymers. Ii-copolymers zikwahlulahlulwe ngakumbi kwi-block copolymers kunye ne-random copolymers. Udidi ngalunye lungena izicelo ezithile ngcono kunolunye. I-Polypropylene idla ngokubizwa ngokuba "yintsimbi" yoshishino lweplastiki ngenxa yeendlela ezahlukeneyo ezinokuthi zilungiswe okanye zenziwe ngokwezifiso ukuze zifezekise injongo ethile. Oku kudla ngokufezekiswa ngokwazisa izongezo ezikhethekileyo kuyo okanye ngokuyivelisa ngendlela ekhethekileyo. Oku kuziqhelanisa neemeko kuyipropathi ebalulekileyo. IHomopolymer polypropylene libakala lenjongo jikelele. Unokucinga oku njengemeko engagqibekanga yemathiriyeli yepolypropylene. Ibhlokhi i-polymer polypropylene ineeyunithi ze-co-monomer ezicwangciswe kwiibhloko (oko kukuthi, kwipateni eqhelekileyo) kwaye iqulethe nayiphi na... -
Zeziphi iimpawu zePolyvinyl Chloride (PVC)?
Ezinye zezona mpawu zibalulekileyo zePolyvinyl Chloride (PVC) zezi: Ukuxinana: I-PVC ixinene kakhulu xa ithelekiswa neeplastiki ezininzi (umxhuzulane okhethekileyo malunga ne-1.4) Ezoqoqosho: IPVC ifumaneka lula kwaye inexabiso eliphantsi. Ukuqina: I-PVC eqinile ibeka kakuhle ukuqina kunye nokuqina. Amandla: I-PVC eqinile inamandla abalaseleyo okuqina. I-Polyvinyl Chloride yinto "ye-thermoplastic" (ngokuchasene ne "thermoset"), ehambelana nendlela iplastiki iphendula ngayo ukushisa. Iimathiriyeli ze-Thermoplastic ziba lulwelo kwindawo yazo yokunyibilika (uluhlu lwePVC phakathi komgangatho ophantsi kakhulu we-100 degrees celcius kunye namaxabiso aphezulu afana nama-260 degrees celsius ngokuxhomekeke kwizongezo). Uphawu olusisiseko oluluncedo malunga ne-thermoplastics kukuba banokufudunyezwa kwindawo yabo yokunyibilika, zipholiswe, kwaye ziphinde zifudunyezwe kwakhona ... -
Yintoni i-caustic soda?
Kuhambo oluqhelekileyo oluya kwivenkile enkulu, abathengi banokuthenga izinto zokucoca, bathenge ibhotile yeasprini baze bajonge nezihloko zamva nje zamaphephandaba namaphephancwadi. Ekuqaleni, kusenokungabonakali ngathi ezi zinto zininzi ezifanayo. Nangona kunjalo, ngamnye kubo, i-caustic soda idlala indima ephambili kwizintlu zabo zesithako okanye iinkqubo zokuvelisa. Yintoni i-caustic soda? Isoda yeCaustic yikhemikhali yesodium hydroxide (NaOH). Le ngqungquthela i-alkali - uhlobo lwesiseko olunokuthi lunciphise i-acids kwaye lunyibilika emanzini. Namhlanje i-caustic soda inokuveliswa ngendlela yeepellets, iiflakes, iipowders, isisombululo kunye nokunye. Isetyenziselwa ntoni i-caustic soda? I-Caustic soda ibe yinto eqhelekileyo kwimveliso yezinto ezininzi zemihla ngemihla. Ngokuqhelekileyo eyaziwa njenge-lye, isetyenzisiwe ... -
Kutheni iPolypropylene isetyenziswa rhoqo?
I-Polypropylene isetyenziswa kwizicelo zasekhaya nakwimizi-mveliso. Iimpawu zayo ezizodwa kunye nokukwazi ukuziqhelanisa neendlela ezahlukeneyo zokuyila ziyenza ibonakale njengento engabalulekanga kuluhlu olubanzi lokusetyenziswa. Olunye uphawu oluxabiseke kakhulu kukukwazi kwepolypropylene ukusebenza njengezinto zombini zeplastiki kunye nefiber (ezifana nezo ngxowa zokuthengisa ezinikwa kwimisitho, imidyarho, njl.njl). Ubuchule obukhethekileyo bePolypropylene bokwenziwa ngeendlela ezahlukeneyo kunye nakwizicelo ezahlukeneyo kwathetha ukuba kungekudala yaqalisa ukucela umngeni kwizinto ezininzi zakudala ezizezinye, ngakumbi kwimizi-mveliso yokupakisha, ifayibha, kunye nenaliti. Ukukhula kwayo kuzinzile kule minyaka idlulileyo kwaye ihlala ingumdlali ophambili kushishino lweplastiki kwihlabathi jikelele. Kwi-Creative Mechanisms, si... -
Yintoni iPVC granules?
I-PVC yenye yeeplastiki ezisetyenziswa kakhulu kwicandelo loshishino. IPlasticol, inkampani yaseTaliyane ebekwe kufutshane neVarese sele isenza iigranule zePVC ngaphezulu kweminyaka engama-50 ngoku kwaye amava aqokelelwe ukutyhubela iminyaka avumela ishishini ukuba lifumane inqanaba elinzulu lolwazi kangangokuba ngoku sinokulusebenzisa ukwanelisa zonke izicelo zabathengi ezinikezela ngeemveliso ezintsha nezithembekileyo. Inyaniso yokuba iPVC isetyenziswa ngokubanzi kwimveliso yezinto ezininzi ezahlukeneyo ibonisa indlela iimpawu zayo ezingaphakathi eziluncedo kakhulu kwaye zikhethekileyo. Masiqale ukuthetha ngokuqina kwePVC: izinto eziphathekayo ziqinile kakhulu ukuba zihlambulukile kodwa ziba bhetyebhetye xa zixutywe nezinye izinto. Olu phawu lwahlukileyo lwenza iPVC ilungele ukwenziwa kweemveliso ezisetyenziswa kwiinkalo ezahlukeneyo, ukusuka kwisakhiwo esinye ... -
I-Biodegradable glitter inokuliguqula ishishini lezithambiso.
Ubomi bugcwele ukupakishwa okukhazimlayo, iibhotile zokuthambisa, izitya zeziqhamo kunye nokunye, kodwa uninzi lwazo zenziwe ngezinto ezinetyhefu nezingenakugcinwa zinegalelo kungcoliseko lweplastiki. Kungekudala, abaphandi beYunivesithi yaseCambridge e-UK baye bafumanisa indlela yokudala i-glitter ezinzileyo, engeyona inetyhefu kunye ne-biodegradable evela kwi-cellulose, ibhloko enkulu yokwakha yeendonga zeeseli zezityalo, iziqhamo kunye nemifuno. Amaphepha anxulumeneyo apapashwa kwijenali yeMathiriyeli yeNdalo ngomhla we-11. Yenziwe kwi-cellulose nanocrystals, le glitter isebenzisa umbala wesakhiwo ukuguqula ukukhanya ukuvelisa imibala eqaqambileyo. Ngokomzekelo, kwindalo, ukukhanya kwamaphiko ebhabhathane kunye neentsiba zepikoko zizinto ezibalaseleyo zombala wesakhiwo, ongayi kuphelelwa emva kwekhulu leminyaka. Ukusebenzisa iindlela zokuzihlanganisa, i-cellulose inokuvelisa ... -
Yintoni iPolyvinyl chloride (PVC) intlama yeResin?
I-Polyvinyl chloride (PVC) i-Resin i-Resin, njengoko igama lithetha, kukuba le resin isetyenziswa kakhulu kwifom yokuncamathisela. Abantu bahlala besebenzisa olu hlobo lokuncamathelisa njengeplastisol, eluhlobo olulodwa lolwelo lwePVC yeplastiki kwimeko yalo engalungiswanga. . I-resins yokunamathisela idla ngokulungiswa nge-emulsion kunye neendlela zokumisa ezincinci. I-Polyvinyl chloride paste resin inobungakanani be-particle encinci, kwaye ukuthungwa kwayo kufana ne-talc, kunye nokungahambi. I-polyvinyl chloride paste resin ixutywe kunye nePlasticizer kwaye emva koko ixutywe ukwenza ukumiswa okuzinzileyo, okuye kwenziwa kwi-PVC yokunamathisela, okanye i-PVC plastisol, i-PVC sol, kwaye ikule fomu abantu abasetyenziselwa ukucubungula iMveliso yokugqibela. Kwinkqubo yokwenza intlama, izihluzi ezahlukeneyo, i-diluents, i-stabilizers yokushisa, i-agent e-foaming kunye ne-stabilizers yokukhanya yongezwa ngokwe ... -
Yintoni iifilimu zePP?
I-PROPERTIES I-Polypropylene okanye i-PP yindleko ephantsi ye-thermoplastic yokucaca okuphezulu, i-gloss ephezulu kunye namandla asebenzayo. Inomlinganiselo ophezulu wokunyibilika kune-PE, eyenza ukuba ifaneleke kwizicelo ezifuna inzala kumaqondo obushushu aphezulu. Ikwanayo nenkungu encinci kunye neglosi ephezulu. Ngokubanzi, iimpawu zokutywinwa kobushushu zePP azilunganga njengezo ze-LDPE. I-LDPE ikwanamandla angcono okukrazula kunye nokumelana nefuthe lobushushu obuphantsi. I-PP inokuthi yenziwe ngetsimbi ekhokelela ekuphuculweni kweepropati zokuthintela igesi kwizicelo ezifunwayo apho ixesha elide leshelufu libalulekile. Iifilimu ze-PP zifaneleke kakuhle uluhlu olubanzi lwemizi-mveliso, abathengi, kunye nosetyenziso lweemoto. I-PP inokuphinda isetyenziswe ngokupheleleyo kwaye inokuphinda ihlaziywe ngokulula kwezinye iimveliso ezininzi ezahlukeneyo zosetyenziso. Nangona kunjalo, ngaphandle ... -
yintoni iPVC compound?
Iikhompawundi ze-PVC zisekelwe kwindibaniselwano ye-PVC ye-polymer RESIN kunye nezongezelelo ezinikezela ukuqulunqwa okuyimfuneko ekusetyenzisweni kokuphela (Imibhobho okanye iiProfayili eziqinileyo okanye iiProfayili eziguquguqukayo okanye iiSheets). Ikhompawundi yenziwe ngokuxuba ngokusondeleyo kunye nezithako, ezithi emva koko ziguqulelwe kwinqaku elithi "gelled" phantsi kwefuthe lobushushu kunye ne-shear force. Ngokuxhomekeke kuhlobo lwe-PVC kunye nezongezelelo, i-compound phambi kwe-gelation ingaba yi-powder-flowing powder (eyaziwa ngokuba ngumxube owomileyo) okanye i-liquid ngendlela ye-paste okanye isisombululo. Iikhompawundi zePVC xa zenziwe, kusetyenziswa iiplastiki, zibe yimathiriyeli ebhetyebhetye, edla ngokubizwa ngokuba yiPVC-P. I-PVC Compounds xa yenziwe ngaphandle kwe-plasticizer kwizicelo eziqinileyo zityunjwe i-PVC-U. I-PVC Compounding inokushwankathelwa ngolu hlobo lulandelayo: I-PVC eqinile dr ... -
Umahluko phakathi kweBOPP, i-OPP kunye nePP Bags.
Ishishini lokutya ikakhulu lisebenzisa ukupakishwa kweplastiki yeBOPP. Iingxowa ze-BOPP zilula ukuprinta, iingubo kunye ne-laminate ezenza zilungele ukupakisha iimveliso ezifana neemveliso ezintsha, i-confectionaries kunye ne-snacks. Kunye neBOPP, OPP, kunye neengxowa zePP nazo zisetyenziselwa ukupakishwa. Ipolypropylene yipolymer eqhelekileyo phakathi kwezi zintathu zisetyenziselwa ukwenza iibhegi. I-OPP imele iOriented Polypropylene, iBOPP imele iBiaxially Oriented Polypropylene kunye nePP imele iPolypropylene. Bobathathu bahlukile kwindlela yabo yokwenza. Ipolypropylene ekwabizwa ngokuba yipolypropene yipolymer ethermoplastic semi-crystalline. Iqinile, yomelele kwaye inokumelana neempembelelo eziphezulu. Iipowutshi zestandup, ii-spout pouches kunye ne-ziplock pouches zenziwe nge-polypropylene. Kunzima kakhulu ukwahlula phakathi kwe-OPP, i-BOPP kunye ne-PP plas...