Embonini yanamuhla yezinto zokwakha, i-polyurethane eyengeziwe ingabonakala emakethe.I-polyurethane iyinto ehlukahlukene kakhulu, kodwa abantu abaningi abaqondi ukuthi iyini i-polyurethane noma ukuthi yenzani.Ukuphendula lesi simo, umhleli uhlanganise ulwazi olulandelayo ukuze akunike isayensi ethandwayo.“

Iyini i-Polyurethane?

Igama eliphelele le-polyurethane i-polyurethane, okuyigama elivamile lenhlanganisela ye-macromolecular equkethe amaqembu e-urethane aphindaphindayo eketangeni eliyinhloko.I-polyurethane iyiqembu elincane le-urethane ezweni lami, futhi ingaqukatha i-ether ester urea biuret urea iqembu lokuqala le-polyurethane lesethulo.Yakhiwa nge-polyaddition ye-organic diisocyanate noma i-polyisocyanate ne-dihydroxyl noma i-polyhydroxyl compound.I-polyurethane inezinto eziningi ezisetshenziswayo, ingathatha indawo yenjoloba, ipulasitiki, inayiloni, njll., esetshenziswa ezikhumulweni zezindiza, amahhotela, izinto zokwakha, izimboni zezimoto, izimayini zamalahle, izimboni zikasimende, amafulethi asezingeni eliphezulu, ama-villas, ukwakheka kwezwe, amatshe anemibala. ubuciko, ipaki njll.

Umsebenzi we-polyurethane:

I-Polyurethane ingasetshenziswa ekwenzeni amapulasitiki, irabha, imicu, amagwebu aqinile futhi aguquguqukayo, izinto zokunamathisela kanye nama-coatings, njll. Ingasetshenziswa emikhakheni ehlukahlukene yokuphila kwabantu futhi inezinhlobonhlobo zezicelo.

1. Igwebu le-polyurethane: ihlukaniswe i-polyurethane foam eqinile, i-polyurethane foam eqinile kanye ne-flexible polyurethane foam.Igwebu le-polyurethane eliqinile lisetshenziselwa ikakhulukazi ukwakha izinto zokugqumisa ezishisayo, izinto zokufaka ukushisa okushisayo (ukufakwa okushisayo kwezindawo zamapayipi, njll.), izidingo zansuku zonke (imibhede, osofa, njll. , njll. izinto ezibalulekile. ), kanye nezinto zokuhamba (izinto ezinjengama-cushion nosilingi wezimoto, izindiza, nezimoto zikaloliwe).

2. I-polyurethane elastomer: I-polyurethane elastomer inezinzuzo zamandla amahle okudonsa, amandla okudabula, ukumelana nomthelela, ukumelana nokuhubhuka, ukumelana nesimo sezulu, ukumelana ne-hydrolysis, ukumelana nowoyela nokunye.Isetshenziselwa ikakhulukazi izinto zokumboza (ezifana nokuvikela amapayipi, amawasha, amathayi, amarola, amagiya, amapayipi, njll.), ama-insulators, amasoli ezicathulo, namathayi aqinile.

3. Izinto ezingangeni manzi ze-polyurethane: I-polyurethane engangeni manzi ilula kakhulu ukuyisebenzisa.Ingaxutshwa futhi ifakwe esizeni futhi yelashwe ngokushisa okuvamile nomswakama, futhi isendlalelo esingenamanzi esingenawo ama-seams, ukuqina kwerabha nokusebenza okuhle kungatholakala.Futhi kulula ukulungisa ngemva kokulimala.Isetshenziswa ngokujwayelekile njengezinto zokugandaya, ithrekhi kanye nezinto zethrekhi yasensimini, amathrekhi omjaho, izinto zasensimini yepaki, amafreyimu wefasitela wokushisa okushisa, njll.

4. Ukugqoka i-polyurethane: Ukugqoka kwe-polyurethane kunokunamathela okuqinile, futhi ifilimu yokugqoka inokumelana okuhle kakhulu kokugqoka, ukumelana kwamanzi nokumelana namakhemikhali.Ikakhulukazi esetshenziselwa ukumboza ifenisha, okokuhlanganisa izinto zokwakha kanye noyinki wokunyathelisa wezimboni.

5. I-polyurethane adhesive: Ukusebenza komkhiqizo ophulukisiwe kungashintshwa ngokulungisa isilinganiso se-isocyanate ne-polyol, ukuze sikwazi ukufeza ukunamathela okuphezulu ku-substrate, ukumelana kwamanzi okuhle kakhulu, ukumelana nowoyela kanye nokumelana namakhemikhali.Ama-adhesive e-polyurethane asetshenziswa kakhulu ekupakisheni, ekwakhiweni, ezinkuni, ezimoto, ekuthungeni izicathulo nakwezinye izimboni.

6. Izinto ze-Biomedical: I-Polyurethane ine-biocompatibility enhle kakhulu, ngakho kancane kancane isetshenziswa kabanzi njengezinto ze-biomedical.Ingasetshenziswa ekwenzeni ama-pacemakers enhliziyo yokwenziwa, imithambo yegazi yokwenziwa, amathambo okwenziwa, umminzo wokwenziwa, izinso zokwenziwa, ulwelwesi lokwenziwa lwe-dialysis, njll.

Okungenhla ngolunye ulwazi olubalulekile mayelana nokuthi iyini impahla ye-polyurethane kanye nendima ye-polyurethane umhleli akuhlanganisele yona.I-polyurethane kancane kancane ithola ukuma okuqinile emakethe yezinto zokwakha ngenxa yokumelana nokuklwebheka nezinye izici.Abasebenzisa i-Netizes bangathenga ngokwezidingo zabo zokuthuthukisa ikhaya.

Isimemezelo:Isihloko sicashunwe ku-https://mp.weixin.qq.com/s/c2Jtpr5fwfXHXJTUvOpxCg(isixhumanisi sinamathiselwe).Ukuxhumana nokufunda kuphela, ungenzi ezinye izinjongo zezohwebo, akumele imibono nemibono yenkampani, uma udinga ukuphrinta kabusha, sicela uxhumane nomlobi wokuqala, uma kukhona ukwephulwa, sicela usithinte ngokushesha ukuze wenze ukucubungula ukususa.