izindaba

Ingemuva lobuchwepheshe

I-polypropylene resin ngoba inokuqina okuhle nokumelana nokushisa, futhi ngemuva kokuguqulwa kusho ukuthi inothile, ngoba lokhu kushintsha kancane kancane amanye amapulasitiki obunjiniyela, asetshenziswa kabanzi ezimotweni, ezintweni zikagesi nasendlini nakweminye imikhakha.

Ikakhulukazi ku-copolymerization polypropylene resin, ekuqhubekeleni phambili kwenqubo yokukhiqiza kanye nobuchwepheshe be-catalyst, inikeza imikhiqizo ukusebenza okuhle kakhulu okubanzi Kodwa ngenxa yomthelela ababehlangene ukukhiqizwa kwe-propylene kunobunzima obukhulu bezobuchwepheshe, ikakhulukazi ezicini ezinjengokuqina komkhiqizo nokuqina. i-liquidity, futhi ayikwazi ukugcwala ngokwanele kwezinye izindawo ezifunwayo, ngakho-ke futhi idinga ngesisekelo somkhiqizo okhona womthelela we-polymer polypropylene ngemva kokuguqulwa, okungukuthi ngokungeza i-nucleating agent elastomer filler ye-inorganic ukuze kuzuzwe impahla efana nokuqina okuphezulu.

Ukuqina kwezinto ze-polypropylene ezinokuqina okuphezulu kanye ne-fluidity ephezulu ngokuvamile kuthuthukiswa ngokungeza i-nucleating agent noma isigcwalisi esingaphili.Ngokungezwa kwe-inorganic filler efana ne-calcium carbonate, i-talcum powder, i-mica, i-diatomite, njll., ukugoqa kwe-polypropylene resin Amandla aguquguqukayo kanye ne-flexural elastic modulus anda kancane kancane, kodwa ngasikhathi sinye, ukunwetshwa namandla omthelela we-polypropylene kuyokwenzeka. kuncishiswe, futhi umbala kanye nokuncipha kwemikhiqizo ye-polypropylene kuzothinteka.Ngaphezu kwalokho, ukwengezwa kwenani elikhulu lama-filler we-inorganic kuzothuthukisa ukuminyana kwezinto, kukhawule isisindo semikhiqizo, ikakhulukazi emkhakheni wezicelo zezimoto.

Eminyakeni yamuva, ukusetshenziswa kwe-nucleating agent ku-polypropylene kuye kwanda kancane kancane.Izitshalo eziningi ze-petrochemical zengeza i-nucleating agent enqubweni ye-granulation yokukhiqiza i-polypropylene resin.Ukwengezwa kwe-agent ye-nucleating akugcini nje ngokungenawo umthelela omubi embala we-polypropylene, kodwa futhi kungathuthukisa ukumelana nokushisa nokucwebezela kwe-polypropylene resin.I-5%, nakuba inani lokwengeza lincane, kodwa ngenxa yentengo ye-nucleating agent liyabiza (ngokwezinga lomkhiqizo kanye nezinga lobuchwepheshe, intengo ngokuvamile ingamashumi ezinkulungwane kuya ezinkulungwaneni ezingamakhulu amahlanu), izonyusa izindleko polypropylene resin amathani amakhulu amaningana yuan.

Ukwakheka kwe-polypropylene kwenziwa ngezinto ezingavuthiwe ezilandelayo ngesisindo:

i-polypropylene resin100;

I-Heat stabilizer 0.05 ~ 2;

Stearate metal usawoti 0.02 ~ 0.5;

Isigcwalisi esingaphili 0.05 ~ 3;

I-ejenti ye-nucleating ye-organic 0.01 ~ 0.2.

Inhlanganisela ye-polypropylene resin kusetshenziswa i-polypropylene resin, i-thermal stabilizer, i-stearic acid, usawoti wensimbi, isigcwalisi esingaphili kanye nenani elincane le-nucleating agent kwakuxutshwe ukulungiswa kwe-granulation, ukuqina okuphezulu, ukumelana nokushisa okuphezulu kanye nenzuzo ephansi, ubuchwepheshe bokulungiselela bulula, i-polypropylene resin. inhlanganisela ingasetshenziswa ezimotweni, ezintweni zasendlini nasendlini nakweminye imikhakha.