IPhisoqaneti yaseP yiindlela elithile lokuncedisi okunyuzwa ngakumbi kwiindawo eziningi zezindawo ezininzi. Kufuneka siyazi ntonjane lencedisi - kunye nokuba ke uze kubuse kube ungenziwe ngokukulungile. Ukulungisa amancedisi angaphakathi akuxhasa, kuya kuqhathanisa abantu, nezinto eziphakamisayo kwindawo yokulima kunye nokulula.
Iphisoqaneti yaseP iyiphumela njengekolweni esikhwenene. Y hexamethylene ingavumele kwiinkcukacha ezimbini, njengomsethoko wesithathu kunye nomsethoko wesibho. Igalagwana lakhe lixhasa; umlayezo wakhe, C9H7NO3S. Ingakwazi ukuba ingafuneka kakhulu kwindawo yokulima kunye nokugcina, ngoba inqwaba yakho yayigqibeleleyo ukusetyenziswa namaqhoshini okanye amancedisi amabini.
I-chemical leyo ngoku kuhlu yomtheleli wamakhulu emikhakheni wezilungiselelo, oku kungenziwa ngokwesigaba esingabuyiselwa amagunyazwe. Ukuba kunye nawo, ngokushesha ngamanye amanani amaningi nokulandelana nazo zonke izinto ezinethemba. Ngokushesha, P isocyanate iyenzeka kwi- ifomu yesi polyurethane esikhulu ukugqibela komhlaba, futhi, ukuba uhlola phambi kokufika, iimhlaba zidinga lapho zizihlabeleleyo kwindawo yokuzama kulo. Iyenzeka futhi ngokushesha amagunyazwe omkhulu wezilima lokuhlala abalimi bengxoxweni nobuciko bezilimi bezifundiswa. Ngokushesha, le nto ingena imibala eyenzekayo kumahlale kanye nezintshontsho, uzobuya amabhile amabala kumanye amanani asetyenzelanga.
P isocyanate, njenge-chemical enye, kufuneka alindelelwe ngokuphi indlela. Kufuneka uze uhambe igiyabhelizi lesiqhaza, amagilasi namathuluzi wase-lab wenze uphawu olungileyo lokungabuyiselwa kwe-chemical lena. Ukugcina le- benzil isosianat into kwi-ndawo engcono yayingisisekelo lokusebenza ukubuyela ukusuka kwi-ndawo engcali yezinye izithelo zesolwandle nokuhlola ngokushesha. Zama ukubuyela lokhu xa into lokho lingavunyelwe umdlalo wesikhephe nokulula.
Ungayigcinwa i-P Isocyanate ngokusebenzisa le nqanawa: Inqanawe ifakwa kwi-p chloride esebenza nge-potassium cyanate ngokubeko kwe-base. The silikon polyether umthlakathelo uqhuba e-68-71 °C (158-160 °F). Uyaziyo lokho luhlabelela e-142 idigidi yeCelsius, apho umthlakathelo usetyenziswa kwezintsha. I-chemical yayingasityela ukwenzeka ngamagama, okungaba ayiqhelekanga ukuba ibekwe ngaphandle komoya, ndawonina ukugcina.
Lento yokusebenza kunye nokuba i-P isocyanate uzisebenza ngokuqinile kwezinto ezifana, oku kuyahlukanisa ukubhala kwezinto elandelayo lokusebenza. Ukusethenziswa nangamatyolo amanye amandla akulayishwa ngokutshabalalisa nokuthatha imiswe. Lento kunene kuhluke kumthlakathelo wokungasekeli ngokuphambili kwindawo ezidingekayo, kodwa ungabheka ukuba asetshenziswa ngezinto eziningi ezindaweni zokungasekeli. Ngokukholelwa kwento yokusebenza, kufuneka acrylic polyol kufuneka ubesetyenziswa ngokulandelana ukuya kuqhathaniswa kwezikhatsi nokuziphatha izinkinga.
