izindaba

I-Bis(2,6-disopropylphenyl) carbodiimideI-CAS 2162-74-5i-monomeric carbodiimide, izinhlobonhlobo ezimele ze-anti-hydrolysis ejenti enezici zokuhlanzeka okuphezulu, umbala okhanyayo, akukho phunga nomsebenzi ophezulu. I-Bis(2,6-disopropylphenyl) carbodiimide isetshenziswa kakhulu ezintweni ezifana ne-polyester polyol, inayiloni, amapulasitiki obunjiniyela aqukethe i-ester group, ama-polyurethane elastomers, izinto zokunamathisela, izinhlelo zokumboza, namafutha okugcoba. I-Bis(2,6-disopropylphenyl) carbodiimide ingavimbela ngempumelelo i-hydrolysis yezinto ezinjalo futhi izinze izici zokuqala zomshini. Ngesikhathi esifanayo,bis(2,6-disopropylphenyl) carbodiimide futhi ingavimba ukuqedwa kwe-carboxyl okusebenzayo kwezinto ze-polyester. Lungisa izinto ezilimele ze-polyester ne-polyurethane,bis(2,6-disopropylphenyl) carbodiimide ingandisa impilo yesevisi yemikhiqizo ye-polymer ngaphansi kwezimo zokusebenza ezinzima ezifana nezinga lokushisa eliphezulu kanye nomswakama.

Emkhakheni wesayensi yezinto zokwakha, i-bis(2,6-disopropylphenyl)carbodiimide, njenge-monomeric carbodiimide anti-hydrolysis stabilizer, isiphenduke into egxile kakhulu embonini ngokusebenza kwayo okuhle kakhulu kanye namathemba okufaka isicelo abanzi.

Okokuqala,i-bis(2,6-disopropylphenyl) carbodiimide isetshenziswa kakhulu kuma-polyurethane elastomers (afana ne-TPU, CPU), izinto zokunamathisela, izixazululo zodwa kanye nama-Microporous elastomers, njll. Kule mikhakha, ngokwengeza u-0.3-2.0% bis(2,6-disopropylphenyl)carbodiimide, impilo yesevisi yomkhiqizo ingathuthukiswa kakhulu, inwebe izikhathi ezi-1 kuye kwezi-3.

Okwesibili, phakathi nenqubo yokuguqulwa kwezinto ze-polyester ezifana ne-PET/PBT, ukwengeza i-bis(2,6-disopropylphenyl) carbodiimide kunganciphisa inani le-asidi le-polyester. Ukuthuthukiswa okuphawulekayo kwekhwalithi yezinto ezibonakalayo kungafinyelelwa ngamanani aphansi angeziwe, okunweba ukuzinza kwesikhathi eside kwezinto.

Ngaphezu kokusetshenziswa njenge-ejenti ye-anti-hydrolysis, i-bis(2,6-disopropylphenyl)carbodiimide ingasetshenziswa futhi njengosizo lokucubungula ukuze isabele ngama-carboxylic acid akhiqizwa ngesikhathi senqubo yokukhipha. ukusabela, ukuvimbela ukuncishiswa kwesisindo samangqamuzana, ukwenza buthaka umonakalo ku-polymer ngesikhathi sokucubungula, okwenza kube lula ukusebenza nokuthuthukisa ukuphepha kokucubungula uma kuqhathaniswa nezinye izindlela.

Ukwengeza, ku-PLA yepulasitiki engaboli imvelo, ukumelana ne-hydrolysis ebuthakathaka bekulokhu kuyingqinamba enkulu evimbela ukusetshenziswa kwayo okubanzi. I-PLA yonakaliswa kalula ezindaweni ezinomswakama, okuthinta ukusebenza kwayo nokuphila kwayo. Kodwa-ke, ngokwengeza i-0.3-0.5% bis(2,6-disopropylphenyl)carbodiimide ku-PLA, ukumelana kwayo kwamanzi kungathuthukiswa kakhulu izikhathi ezi-3-7, kunwetshwe ngempumelelotufaka izicelo ze-PLA.

Ngamafuphimi-ary, i-bis(2,6-disopropylphenyl)carbodiimide, njengesiqinisi sokusebenza okuphezulu kwe-anti-hydrolysis, ibonise amandla okusebenza abanzi namandla emkhakheni wesayensi yezinto. inani.ItIzakhiwo ezinhle kakhulu zomzimba namakhemikhali, izinhlobonhlobo zezinhlelo zokusebenza, nezixazululo ezihlosiwe zezinto ezithile (ezifana ne-PLA) zenza i-bis(2,6-disopropylphenyl)carbodiimide ibe umholi ekuqinisweni kwezinto. Ngokuthuthuka okuqhubekayo kwesayensi yezinto kanye nokuqwashisa okwandayo kokuvikelwa kwemvelo, i-bis(2,6-disopropylphenyl)carbodiimide kanye nemikhiqizo yayo efanayo kulindeleke ukuthi ithuthukiswe futhi isetshenziswe emikhakheni eyengeziwe.