Noma yini engathuthukisa izakhiwo zokuqala ze-resin ngemiphumela yomzimba, yemishini kanye neyekhemikhali ingabizwa ngokuthiukuguqulwa kwepulasitikiIncazelo yokuguqulwa kwepulasitiki ibanzi kakhulu. Ngesikhathi senqubo yokuguqulwa, kokubili izinguquko zomzimba nezamakhemikhali zingakufeza lokho.
Izindlela ezivame ukusetshenziswa zokuguqulwa kwepulasitiki yilezi ezilandelayo:
1. Engeza izinto eziguquliwe
a. Engeza izinto ezincane ezingaphili noma ezingaphili zama-molecule
Izithasiselo ezingezona ezingokwemvelo njengezigcwalisi, ama-reinforcement agents, ama-flame retardants, ama-colorants nama-nucleating agents, njll.
Izithasiselo zezinto eziphilayo ezifaka phakathi ama-plasticizer, ama-organotin stabilizers, ama-antioxidants kanye nama-organic flame retardants, izithasiselo zokubola, njll. Isibonelo, i-Topfeel yengeza izithasiselo ezibolayo kwamanye amabhodlela e-PET ukuze isheshise izinga lokubola kanye nokubola kwamapulasitiki.
b. Ukwengeza izinto ze-polymer
2. Ukuguqulwa kwesimo nesakhiwo
Le ndlela ihloselwe kakhulu ukuguqula isimo se-resin kanye nesakhiwo sepulasitiki uqobo. Indlela evamile ukushintsha isimo sekristalu sepulasitiki, ukuxhumanisa, i-copolymerization, i-grafting njalo njalo. Isibonelo, i-styrene-butadiene graft copolymer ithuthukisa umthelela wezinto ze-PS. I-PS ivame ukusetshenziswa ezindlini zama-TV, izinto zikagesi, izibambo zepeni le-ballpoint, ama-lampshade namafriji, njll.
3. Ukuguqulwa kwenhlanganisela
Ukuguqulwa kwepulasitiki okuhlanganisiwe kuyindlela lapho izendlalelo ezimbili noma ngaphezulu zamafilimu, amashidi nezinye izinto zihlanganiswa ndawonye nge-glue noma i-hot melt ukuze kwakhiwe ifilimu enezingqimba eziningi, ishidi nezinye izinto. Embonini yokupakisha izimonyo, amashubhu ezimonyo epulasitiki kanyeamashubhu ahlanganisiwe e-aluminium-plasticzisetshenziswa kulokhu.
4. Ukuguqulwa kwendawo
Inhloso yokuguqulwa kobuso bepulasitiki ingahlukaniswa ngezigaba ezimbili: eyodwa iwukuguqulwa okuqondile, enye iwukuguqulwa okuqondile.
a. Ukuguqulwa kobuso bepulasitiki obusetshenziswa ngqo kufaka phakathi ukucwebezela kobuso, ubulukhuni bobuso, ukumelana nokuguguleka kobuso kanye nokungqubuzana, ukulwa nokuguga kobuso, ukuvimbela ilangabi lobuso, ukuqhuba kobuso kanye nesithiyo sobuso, njll.
b. Ukusetshenziswa okungaqondile kokuguqulwa kobuso bepulasitiki kuhlanganisa ukuguqulwa kokuthuthukisa ukucindezelwa kobuso bepulasitiki ngokuthuthukisa ukunamathela, ukuphrinta kanye nokunamathela kwepulasitiki. Uma sibheka imihlobiso ye-electroplating epulasitikini njengesibonelo, ukushesha kokubopha kwe-ABS kuphela okungahlangabezana nezidingo zepulasitiki ngaphandle kokwelashwa kobuso; Ikakhulukazi kumapulasitiki e-polyolefin, ukushesha kokubopha kuphansi kakhulu. Ukuguqulwa kobuso kumele kwenziwe ukuze kuthuthukiswe ukushesha kokuhlanganiswa kokubopha ne-coating ngaphambi kokufaka i-electroplating.
Okulandelayo isethi yezitsha zokuhlobisa ezenziwe ngesiliva ezicwebezelayo ngokuphelele: Udonga oluphindwe kabili 30g 50gimbiza kakhilimu, 30ml icindezelweibhodlela le-dropperkanye no-50mlibhodlela lokugcoba.
Isikhathi sokuthunyelwe: Novemba-12-2021
