Isikhunta sepulasitiki siyisifinyezo sesikhunta esihlanganisiwe esisetshenziselwa ukubumba okucindezelwe, ukubumba okuphumayo, ukujova, ukubumba okushaywayo kanye nokubumba okune-foam ephansi. Izinguquko ezihlanganisiwe zesikhunta ezihlanganisiwe nezigobile kanye nohlelo lokubumba olusizayo lungacubungula uchungechunge lwezingxenye zepulasitiki ezinezimo ezahlukene nobukhulu obuhlukene. Isikhunta sepulasitiki singumama wemboni, futhi ukukhishwa kwemikhiqizo emisha manje kuhilela amapulasitiki.

Ihlanganisa kakhulu isikhunta sowesifazane esine-variable cavity esakhiwe yi-substrate ehlanganisiwe yesikhunta sowesifazane, ingxenye yesikhunta sowesifazane kanye nebhodi lekhadi elihlanganisiwe lesikhunta sowesifazane, kanye ne-convex mold combined substrate, ingxenye yesikhunta esihlanganisiwe, ibhodi lekhadi elihlanganisiwe lesikhunta sowesilisa, ingxenye yokusika i-cavity kanye ne-A punch ene-variable core eyakhiwe ngamapuleti ahlanganisiwe asikiwe eceleni.
Ukuze kuthuthukiswe ukusebenza kwepulasitiki, izinto ezahlukahlukene ezisizayo, njengezigcwalisi, amapulasitiki, izinto zokugcoba, izinto eziqinisayo, izinto zokufaka imibala, njll., kumele zengezwe ku-polymer ukuze zibe yipulasitiki esebenza kahle.

1. I-resin yokwenziwa iyingxenye ebaluleke kakhulu yepulasitiki, futhi okuqukethwe kwayo kumapulasitiki ngokuvamile kungama-40% kuya ku-100%. Ngenxa yokuthi okuqukethwe kukhulu, futhi uhlobo lwe-resin luvame ukunquma uhlobo lwepulasitiki, abantu bavame ukubheka i-resin njengento efanayo nepulasitiki. Isibonelo, hlanganisa i-resin ye-polyvinyl chloride namapulasitiki e-polyvinyl chloride, kanye nama-resin e-phenolic namapulasitiki e-phenolic. Eqinisweni, i-resin nepulasitiki kuyimibono emibili ehlukene. I-resin iyi-polymer eluhlaza engacutshungulwanga engasetshenziswanga kuphela ukwenza amapulasitiki, kodwa futhi iyinto eluhlaza yokumboza, izinamathiselo, kanye nemicu yokwenziwa. Ngaphezu kwengxenye encane kakhulu yamapulasitiki aqukethe i-resin engu-100%, amapulasitiki amaningi adinga ezinye izinto ngaphezu kwe-resin yengxenye eyinhloko.

2. I-Filler Filler ibizwa nangokuthi i-filler, engathuthukisa amandla nokumelana nokushisa kwamapulasitiki futhi inciphise izindleko. Isibonelo, ukungezwa kwempuphu yokhuni ku-resin ye-phenolic kunganciphisa kakhulu izindleko, okwenza ipulasitiki ye-phenolic ibe ngeyodwa yamapulasitiki ashibhile, kuyilapho futhi kuthuthukisa kakhulu amandla omshini. Ama-filler angahlukaniswa abe izinhlobo ezimbili: ama-filler e-organic kanye nama-inorganic fillers, okuqala njengofulawa wokhuni, ama-rags, iphepha kanye nemicu ehlukahlukene yendwangu, kanye nokugcina njenge-glass fiber, i-diatomaceous earth, i-asbestos, kanye ne-carbon black.

3. Ama-Plasticizer Ama-Plasticizer angandisa ukuqina nokuguquguquka kwamapulasitiki, anciphise ukuqhekeka, futhi enze amapulasitiki abe lula ukuwacubungula nokuwabumba. Ama-Plasticizer ngokuvamile angama-organic compounds abilayo kakhulu axutshwa ne-resin, angenabo ubuthi, angenaphunga, futhi azinzile ekukhanyeni nasekushiseni. Asetshenziswa kakhulu ama-phthalate esters. Isibonelo, ekukhiqizweni kwamapulasitiki e-polyvinyl chloride, uma kufakwa amapulasitiki engeziwe, kungatholakala amapulasitiki e-polyvinyl chloride athambile; uma kufakwa amapulasitiki angafakiwe noma angaphansi (inani elingaphansi kwe-10%), kungatholakala amapulasitiki e-polyvinyl chloride aqinile.

4. Isiqinisi Ukuze kuvinjelwe i-resin yokwenziwa ukuthi ingonakaliswa futhi yonakale ukukhanya nokushisa ngesikhathi sokucubungula nokusetshenziswa, futhi kwandiswe isikhathi sokusebenza, kufanele kufakwe isiqinisi kupulasitiki. Ngokuvamile kusetshenziswa i-stearate ne-epoxy resin.

5. Izinto Zokufaka Umbala Izinto zokufaka umbala zingenza amapulasitiki abe nemibala ehlukahlukene ekhanyayo nenhle. Amadayi emvelo kanye nemibala engaphili asetshenziswa kakhulu njengezithako zokufaka umbala.

6. Isithambisi Indima yesithambisi ukuvimbela ipulasitiki ukuthi inamathele esikhumbeni sensimbi ngesikhathi sokubumba, futhi ngesikhathi esifanayo yenze ubuso bepulasitiki bube bushelelezi futhi bube buhle. Izithambisi ezivame ukusetshenziswa zifaka i-stearic acid kanye nosawoti wayo we-calcium ne-magnesium. Ngaphezu kwezithasiselo ezingenhla, izithibi zomlilo, izinto ezikhipha amagwebu, izinto ezivimbela ukushibilika, njll. nazo zingangezwa epulasitikini.