Mumapurasitiki, zvinowedzerwa zvinoita basa rakakosha mukusimudzira nekugadzirisa zvinhu zvemidziyo.Nucleating agents uye clarifying agents zvinhu zviviri zvakadai zvekuwedzera zvine zvinangwa zvakasiyana mukuwana mhedzisiro chaiyo.Nepo ese ari maviri achibatsira kuvandudza mashandiro ezvigadzirwa zvepurasitiki, zvakakosha kuti unzwisise mutsauko uripo pakati pevamiririri vaviri ava uye kuti vanopa sei kuchigadzirwa chekupedzisira.

Kutanga nanucleating agents, izvi zvinowedzera zvinoshandiswa kumhanyisa crystallization process yemapurasitiki.Crystallization inoitika kana cheni dzepolymer dzakarongwa nenzira yakarongeka, zvichikonzera chimiro chakasimba.Basa reiyo nucleating agent nderekupa nzvimbo yekuti macheni epolymer atevedzere, kusimudzira kuumbwa kwekristaro uye kuwedzera iyo yakazara crystallinity yezvinhu.Nekumhanyisa kristalllization, nucleating agents inosimudzira michina uye yekupisa zvimiro zvepurasitiki, zvichiita kuti zviome uye zvakanyanya kusapisa.

Imwe yeanowanzo shandiswa nucleating agents ndeye talc, chicherwa chinozivikanwa nekugona kwayo kukonzeresa kuumbwa kwekristaro.Talc inoshanda senge nucleating agent, ichipa nucleation nzvimbo dzepolymer cheni kuronga kutenderedza.Kuwedzera kwayo kunoguma nekuwedzera crystallization rates uye yakanatswa kristaro chimiro, zvichiita kuti zvinhu zvive nesimba uye zvakanyanya kugadzikana.Zvichienderana nezvinodiwa uye maitiro echigadzirwa chepurasitiki, mamwe manucleating agents akadai sodium benzoate, benzoic acid nesimbi munyu anogona kushandiswa.

Clarifiers, kune rumwe rutivi, zviwedzere zvinowedzera kujekesa kwemaziso epurasitiki nekuderedza hupfu.Haze ndiko kupararira kwechiedza mukati mechinhu, zvichiita kuti pave nemakore kana kupenya.Basa rekujekesa maajenti ndere kushandura iyo polymer matrix, kuderedza kuremara uye kuderedza mwenje yekuparadzira mhedzisiro.Izvi zvinoguma nekujekesa, zvakanyanya kujeka zvinhu, izvo zvakanyanya kunaka kune maapplication akadai sekurongedza, optical lenzi uye kuratidza.

Imwe yeanowanzo shandiswa kujekesa maajenti ndeye sorbitol, doro reshuga iro rinoshandawo semushonga wekuita nucleating.Sechinhu chinojekesa, sorbitol inobatsira kuumba makristasi maduku, anonyatsotsanangurwa mukati meplastiki matrix.Aya makristasi anoderedza kupararira kwechiedza, izvo zvinoderedza zvakanyanya mhute.Sorbitol inowanzoshandiswa pamwe chete nezvimwe zvinojekesa zvakadai se benzoin uye triazine derivatives kuti iwane kujeka kunodiwa uye kujeka kwechigadzirwa chekupedzisira.

Kunyange zvese zviri zviviri nucleating uye kujekesa maajenti ane chinangwa chakafanana chekusimudzira zvimiro zvepurasitiki, zvinofanirwa kucherechedzwa kuti maitiro avo ekuita anosiyana.Nucleating agentsmhanyisa maitiro ekristallisation, nekudaro kuvandudza michina uye yekupisa zvivakwa, nepo kujekesa vamiririri vanoshandura iyo polymer matrix kuderedza kupararira kwechiedza uye kuwedzera kujeka kwemaziso.

Mukupedzisa, nucleating agents uye maajenti ekujekesa akakosha ekuwedzera mumunda wemapurasitiki, uye chimwe nechimwe chinowedzera chine chinangwa chaicho.Nucleating agents anowedzera crystallization process, nekudaro achinatsiridza ma mechanical and thermal properties, ukuwo kujekesa vamiririri kunoderedza haze uye kuwedzera kujeka kwemaziso.Nekunzwisisa mutsauko uripo pakati peaya maajenti maviri, vagadziri vanogona kusarudza chakakodzera chekuwedzera kuti vawane mhedzisiro inodiwa yechigadzirwa chavo chepurasitiki, ingave yakawedzera simba, kupisa kupisa kana kujekesa kwemaziso.