Ungakhetha kanjani izithasiselo ku-polyurethane resin emanzini

Ungakhetha kanjani izithasiselo ku-polyurethane yamanzi? Kunezinhlobo eziningi zezinsiza ezisekelwe emanzini ze-polyurethane, futhi ububanzi besicelo bubanzi, kodwa izindlela zabasizi zihambisana njalo. 

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Ukuhambisana kwezithasiselo nemikhiqizo nakho kuyisici sokuqala okufanele sicatshangelwe ekukhetheni izithasiselo. Ngaphansi kwezimo ezijwayelekile, isilekeleli kanye nokokusebenza kuyadingeka ukuthi kuhambisane (okufanayo ngesakhiwo) futhi kuzinzile (akukho ukukhiqizwa kwezinto ezintsha) kundaba, ngaphandle kwalokho kunzima ukudlala indima yomsizi.

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Isengezo ezintweni ezingeziwe kumele sigcine ukusebenza kwasekuqaleni kwesengezo isikhathi eside ngaphandle kokushintsha, futhi ikhono lesengezo ukugcina ukusebenza kwasekuqaleni endaweni yesicelo kubizwa ngokuthi ukuqina kwesengezo. Kunezindlela ezintathu zokuthi abasizi balahlekelwe yizinto zabo zangempela: ukuguquguquka (isisindo samangqamuzana), ukukhishwa (ukunyibilika kwemidiya ehlukene), kanye nokufuduka (ukuncibilika kwama-polymers ahlukene). Ngesikhathi esifanayo, isengezo kufanele sibe nokuphikiswa kwamanzi, ukumelana nowoyela kanye nokumelana ne-solvent. 

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Enqubweni yokucubungula izinto, izithasiselo azikwazi ukushintsha ukusebenza kwasekuqaleni futhi ngeke zibe nomthelela olimazayo ekukhiqizeni nasekusetshenzisweni kwemishini nezinto zokwakha.

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Izithasiselo zokuguquguquka kokusetshenziswa komkhiqizo, izithasiselo zidinga ukuhlangabezana nezidingo ezikhethekile zezinto ezisetshenziswayo, ikakhulukazi ubuthi bezithasiselo.

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Ukuze uthole imiphumela engcono, ukusetshenziswa kwezithasiselo kuvame ukuxutshwa. Lapho ukhetha inhlanganisela, kunezimo ezimbili: enye iyinhlanganisela yohlelo lokusebenza ukuthola imiphumela emihle, kanti enye inhloso ehlukahlukene, njengokungagcini nje ngokubeka izinga kodwa nokukhipha amagwebu, hhayi nje ukwengeza ukukhanya kodwa futhi ne-antistatic. Lokhu kufanele kucatshangelwe: endabeni efanayo kuzokhiqiza ama-synergies phakathi kwezithasiselo (umphumela uphelele mkhulu kunesamba somphumela wokusetshenziswa okukodwa), umphumela wokwengeza (umphumela ophelele ulingana nesamba somphumela wokusetshenziswa okukodwa) kanye umphumela ophikisayo (umphumela ophelele ungaphansi kwesamba somphumela wokusetshenziswa okukodwa), ngakho-ke isikhathi esingcono kakhulu sokukhiqiza ama-synergies, ukugwema umphumela wokuphikisa.

 

Enkambweni yokukhiqiza ye-polyurethane esekelwe emanzini ukwengeza uhlobo oluthile lwezithasiselo, kuyadingeka ukunaka indima yayo ezigabeni ezihlukahlukene zokugcina, ukwakhiwa, ukufaka isicelo, futhi ucabangele futhi uhlole indima yayo kanye nomthelela esigabeni esilandelayo. 

Isibonelo, lapho upende olusekelwe emanzini lwe-polyurethane lusetshenziswa ngama-ejenti wokumanzisa nokusabalalisa, ludlala indima ethile ekugcineni nokwakhiwa, futhi kuhle kumbala wefilimu kapende. Ngokuvamile kuba nomphumela ovelele, futhi ngesikhathi esifanayo kubangele uchungechunge lwemiphumela emihle ngesikhathi esisodwa, njengokusetshenziswa kwe-silicon dioxide, kunomphumela wokuqothula, nokumuncwa kwamanzi, i-surface anti-adhesion kanye neminye imiphumela emihle.

Ukwengeza, ekusetshenzisweni kwe-ejenti ethile kungase kube nomthelela omubi, njengokwengezwa kwe-agent equkethe i-silicon, umphumela wayo wokukhipha amagwebu ubalulekile, ungathola umphumela omuhle ophumelelayo, kodwa futhi nokuhlola ukuthi kukhona yini imbobo yokuncipha. , ayiguquguquki, ayiphazamisi i-recoating nokunye. Sekukonke, ukusetshenziswa kwezithasiselo, ekuhlaziyeni kokugcina, kuyinqubo esebenzayo, futhi umbandela kuphela wokuhlola kufanele kube ikhwalithi yemiphumela yesicelo.