Polyaspartic Coating Technology
Ikhemistri isuselwe ekuphenduleni kwe-aliphatic polyisocyanate kanye ne-polyaspartic ester, okuyi-aliphatic diamine. Lobu buchwepheshe ekuqaleni babusetshenziswa ekwakhiweni okujwayelekile kwezingxenye ezimbili ze-polyurethane ezithwala i-solvent ngenxa yokuthi ama-ester e-polyaspartic angama-diluent asebenzayo asebenza kahle kakhulu ekuhlanganisweni okuqinile kwe-polyurethane.
Ukuthuthuka kwakamuva kakhulu kubuchwepheshe bokuhlanganisa i-polyaspartic kugxile ekuzuzeni i-VOC ephansi noma eseduze neqanda lapho i-polyaspartic ester iyingxenye eyinhloko ye-co-reactant yokusabela nge-polyisocyanate. I-reactivity eyingqayizivele futhi elungisekayo ye-polyaspartic esters ivumela ukuklama kwezingubo ezipholile ezihambisana nezidingo zohlelo lokusebenza. Isici sokuphulukisa ngokushesha salezi zimbozo singahlinzeka ngokuthuthukiswa kokukhiqiza okubalulekile, okonga imali, kanye nokwelapha okuphezulu, izinga lokushisa eliphansi, kanye nokumelana nokuhuzuka nokugqwala.
Igama elithi polyaspartics lisanda kuthandwa phakathi kwabaqulunqi embonini ngenxa yesidingo sokulihlukanisa nama-polyureas nama-polyurethanes. Ngokwencazelo, i-polyaspartic i-aliphatic polyurea ngoba iwukusabela kwe-aliphatic polyisocyanate ene-polyaspartic ester - okuyi-aliphatic diamine. Kodwa-ke, i-polyaspartic coatings ihluke kakhulu kuzo zombili izici zokusebenza kwesicelo kanye nokwemboza kusuka ku-polyureas evamile. Isibonelo, i-polyaspartics ivumela umenzi ukuthi alawule izinga lokuphendula kanye nokwelapha, ngakho-ke, i-potlife yengxube yezingxenye ezimbili ingaba kusuka kumaminithi amahlanu kuya emahoreni amabili. Ngenkathi amasu okufaka isifutho afaka phakathi ukusetshenziswa kwe-plural umshini wokufafaza wengxenye, izinhlelo eziningi zingasetshenziswa ngezifutho ezijwayelekile, okwenza uhlelo lube lula kakhulu futhi lungabi lula ukwenza iphutha.
Ubuchwepheshe be-Polyaspartic busondele ekusetshenzisweni nasekuzicini kokusebenza kwezingxenye ezi-2 ze-aliphatic polyurethane coatings. Ivamise ukusetshenziswa njengejazi langaphezulu ngenxa yemvelo yalo engaphuzi. Kodwa, nalapha, kunomehluko ophawulekayo. Izembozo ze-polyaspartic, isibonelo, zingakhiwa zibe izinto eziqinile eziphakeme kakhulu (70-100% okuqinile) futhi zisetshenziswe ekwakhiweni kwefilimu ephakeme (kufika ku-15 mils WFT ejazini elilodwa) kunezingxenye ezimbili ze-aliphatic polyurethanes ezivamile. Ngenxa yokuthi i-polyaspartic yomiswa ngokushesha kunama-aliphatic polyurethanes avamile, imvamisa isetshenziswa ezinhlelweni lapho ukwelapha okusheshayo kusho ukukhiqiza okuthuthukisiwe emsebenzini wokudweba.