Ipapashwe ngoSeptemba 27, 2024 nguYidan Zhong
Ziziphi izongezo zeplastiki?
Izongezo zePlastiki ziyindalo okanye zokwenziwa kwe-inorganic okanye i-organic compounds eziguqula iimpawu zeplastiki ecocekileyo okanye zongeze iipropati ezintsha. Abavelisi baxuba i-resin kunye ne-masterbatches ezongezelelweyo kwimilinganiselo ethile ngokusekelwe kwiimfuno zemveliso, emva koko bavelise izinto ezahlukeneyo. Emva kokucubungula ngokuphosa, ukunyanzeliswa, ukubumba, njl., umxube wokuqala uthatha ubume obufunwayo.
Ukudibanisa izongezo ezahlukeneyo kunye neegranule zeplastiki kunokunika iipropathi ezahlukeneyo kwiiplastiki, ezinje ngokuqina okwandisiweyo, ukugquma okungcono, kunye nokugqiba okukhazimlayo. Ukongeza izongezo kwiiplastiki akwenzi nje izinto zeplastiki zibe khaphukhaphu kodwa ziphucula nombala wazo, nto leyo eyenza ukuba imveliso ithembeke ngakumbi kubasebenzisi. Yiloo nto i-90% yeiimveliso zeplastikisebenzisa izongezelelo zehlabathi jikelele, njengoko iplastiki esulungekileyo ingenabulukhuni, ukuqina, kunye namandla. Izongezo kufuneka zidityaniswe ukwenza iplastiki ihlale phantsi kweemeko ezimaxongo zokusingqongileyo.
Zeziphi ezona izongezo zeplastiki eziqhelekileyo namhlanje?
1. Izongezo ezichasene nokuthintela (i-anti-adhesive)
Ukubambelela kunokuchaphazela kakubi ukusetyenzwa kwefilimu kunye nokusetyenziswa, ngamanye amaxesha ukunika ifilimu ingasebenzi. Izongezo ezichasene ne-anti-blocking zirhabaxa umphezulu wefilimu ukwenza isiphumo esizolula, ukunciphisa ukudibana phakathi kweefilimu kwaye zithintele ukuba zingabambeleli kunye.
Ii-Anti-blocking agents kufuneka zisebenze kakhulu, ezinomgangatho othembekileyo kunye nokuzinza, zibe nefuthe elincinci okanye elingenalo kwintsebenzo yefilimu, ngakumbi kwiifilimu ze-LLDPE kunye ne-LDPE. Ii-Anti-blocking agents zihlala zisetyenziswa kunye nee-ejenti ze-slip ukudala indawo efanelekileyo yokucubungula iifilimu.
Izithako eziqhelekileyo zezongezo ezichasayo ziquka i-silica yokwenziwa (i-SiO2) njenge-silica evuthayo, i-silica ye-gel, kunye ne-zeolite, okanye i-SiO2 yendalo kunye ne-mineral efana nodongwe, umhlaba we-diatomaceous, i-quartz, kunye ne-talc. Izinto ze-Synthetic zinenzuzo yokungabi yi-crystalline (ukuphepha uthuli lwe-chalky), ngelixa izinto zendalo zifuna unyango olukhethekileyo ukunciphisa uthuli.
2. Ii-arhente zokucacisa
Ngexesha lokucubungula, izinto ezifana nezihluzi okanye iplastiki esetyenzisiweyo inokunciphisa ukubonakala kwemveliso. Ii-ejenti zokucacisa zinika isisombululo, ukwandisa i-gloss yemveliso ngelixa unciphisa iindleko zokuvelisa.
Ii-agent ezicacisayo zinokuphucula ukucaca kwizinga eliphantsi ngelixa linikezela ngeenzuzo ezinokubakho ngokunciphisa ixesha lokujikeleza kunye nokugcinwa kwamandla. Aziyichaphazeli kakubi i-welding, i-adhesion, okanye enye indlela yokusebenza.
3. Iifayili zeplastiki
I-plastic filler masterbatch, ngokuqhelekileyo isekelwe kwi-calcium carbonate (CaCO3), isetyenziswe kwishishini leplastiki ukuguqula iimpawu ze-resin okanye i-polymer resins, ukunciphisa iindleko zemveliso.
Umxube womgubo welitye, izongezo, kunye nentlaka esisiseko inyibilika ibe yintlaka engamanzi kwaye ipholiswe kwiigranule, ezithi ke zixutywe neplastiki ekrwada kwiinkqubo ezinjengokubumba, ukusonta, kunye nokubumba isitofu ukuvelisa iimveliso zeplastiki.
Ekusetyenzweni kweplastiki yePP, izinto ezinje ngokuncipha kunye ne-warping zihlala zichaphazela umgangatho wemveliso. Iiarhente zokuqina zinceda ukukhawulezisa ukubumba imveliso, ukunciphisa ukulwa, kunye nokuphucula ukungafihli. Bakwafinyeza imijikelo yoshicilelo, bephucula ukusebenza kakuhle kwemveliso.
4. Izizinzi zeUV (izongezo zeUV)
Ukukhanya kwe-Ultraviolet kunokwaphula iibhondi kwiipolymers, kubangele ukuthotywa kweefotochemical kwaye kukhokelela ekutshixeni, ukubola, kunye nokulahleka kwepropathi ebonakalayo. Izizinzi ze-UV ezifana nezithinteli zokukhanya kwe-amine (HALS) zinciphisa iiradicals zasimahla ezinoxanduva lokuthotywa, ngaloo ndlela zandisa ubomi bemveliso.
5. Izongezo ze-Anti-static
Ngexesha lokucubungula, iigranuli zeplastiki zivelisa umbane ongatshintshiyo, zitsala uthuli phezulu. Izongezo ze-Anti-static zinciphisa umrhumo wefilimu, ukuphucula ukhuseleko kunye nokunciphisa ukuqokelela uthuli.
Iintlobo:
I-anti-statics engapheliyo: ii-agent ezingaphezulu, iityuwa ze-organic, i-ethylene glycol, i-polyethylene glycol.
I-anti-statics ehlala ixesha elide: i-polyhydroxy polyamines (PHPA), i-polyalkyl copolymers
6. Anti-caking izongezo
Iifilimu zihlala zinamathelana ngenxa yemikhosi encamathelayo, iintlawulo ezichaseneyo, okanye i-vacuum force, eyenza kube nzima ukuzahlula. Izongezo ezichasene ne-caking ziwenza ube rhabaxa umphezulu wefilimu ukuvumela umoya uthintele ukungqubana. Ezinye iimeko ezikhethekileyo zibandakanya izinto ezichasene ne-static ukuthintela ukwakhiwa kwentlawulo.
7. Izongezo ze-flame retardant
Iiplastiki zivutha kakhulu ngenxa yesakhiwo se-carbon-chain molecular. Izithinteli zomlilo ziphucula ukuxhathisa umlilo ngokusebenzisa iindlela ezifana nokwenza umaleko okhuselayo okanye ukucima iiradicals zasimahla.
Iiretadants eziqhelekileyo zomlilo:
I-Halogenated flame retardants
Izinto eziphuma kwiDOPO
Inorganic: ialuminiyam hydroxide (Al(OH)3), imagnesium hydroxide (Mg(OH)2), iphosphorus ebomvu
Izinto eziphilayo: iiphosphates
8. Anti-inkungu izongezo
Ii-anti-fogging agents zithintela amanzi ukuba adibanise phezu kweefilimu zeplastiki ngendlela yamaconsi, abonwa ngokuqhelekileyo kwiipakethe zokutya ezigcinwe kwiifriji okanye kwiindawo zokugcina izityalo. Ezi arhente zigcina ukucaca kwaye zithintele inkungu.
Iiarhente eziqhelekileyo zokulwa nenkungu:
I-PLA (i-polylactic acid)
Lanxs AF DP1-1701
9. Izikhanyisi zamehlo
Izikhanyisi ze-Optical, ezaziwa ngokuba zii-fluorescent whiteners, ziqhele ukusetyenziswa ukufunxa ukukhanya kwe-UV kwaye zikhuphe ukukhanya okubonakalayo, ziphucula inkangeleko yeemveliso zeplastiki. Oku kunceda ukunciphisa umbala, ngakumbi kwiiplastiki ezisetyenzisiweyo, ukwenza imibala iqaqambe kwaye ibonakale ngakumbi.
Izikhanyisi eziqhelekileyo zokukhanya: OB-1, OB, KCB, FP (127), KSN, KB.
10. I-Biodegradation exhasa izongezo
Iiplastiki zithatha ixesha elide ukubola, ukudala imingeni yokusingqongileyo. Izongezo zeBiodegradation, njengeReverte, zinceda ukukhawulezisa ukuwohloka kweplastiki phantsi kweempembelelo zendalo ezifana neoksijini, ukukhanya kwelanga kunye nobushushu.
Ezi zongezelelo zinceda ukuguqula iiplastiki ezingaguquguqukiyo kwizinto eziphilayo, ezifana nezinto zendalo ezifana namagqabi okanye izityalo, ezinegalelo ekuzinzeni kwendalo.
Ixesha lokuposa: Sep-27-2024
