Bambanci tsakaninNau'in TPU POYETERHERdanau'in polyester
Za'a iya raba TPU zuwa nau'ikan biyu: nau'in polyether da nau'in polyester. Dangane da daban-daban bukatun aikace-aikacen aikace-aikacen, nau'ikan tpus daban-daban suna buƙatar zaɓaɓɓu. Misali, idan bukatun na juriya suna da juriya na hydrolyis suna da girma, nau'in polyether TPU ya fi dacewa da nau'in Polyester TPU.
Don haka a yau, bari muyi magana game da bambance-bambance tsakaninpolyether tpudaPolyester nau'in TPU, da yadda ake rarrabe su? Wadannan zasuyi bayani game da fannoni hudu: bambance-bambance a cikin albarkatun kasa, bambance-bambance na tsari, kwatancen aiki, da hanyoyin tantance su.
1, bambance-bambance a cikin kayan albarkatun kasa
Na yi imani da yawa mutane da yawa sun san manufar thermoplors, waɗanda suke da fasalin tsarin da ke ɗauke da sassauƙa da wuya, bi da bi, don kawo sassauƙa da ƙiyayya ga kayan.
Tpu kuma yana da sassauƙa da taushi da kuma bambanci tsakanin nau'in polyether tpu da polyester nau'in tpu ya ta'allaka ne a cikin banbancin sarkar sarkar. Zamu iya ganin bambanci daga kayan abinci.
Polyether TPU: 4-4 'irpyanate diisocyanate (mdi), polyteTrettDrofulan (PTMEG), 1,4), tare da sashi na kimanin 40% na MDI, kashi 20% na PTMEG, 20% na PTMEG, 20% na BDO.
Polyester tpu: 4-4 'irline uphnylmethane diisocyanate (mdo), 1,4), Asusun lissafi na kimanin kashi 35%, da kuma lissafin lissafin 25%.
Za mu iya ganin cewa albarkatun ƙasa don nau'in suraramar da polyether TPU taushi shine polyntttTrahyrofuran (PTMEG); Ruwan kayan abinci don polyester nau'in sarkar sarkar sarkar ne adipic acid (AA), inda adippic acidiol don ƙirƙirar polybutylene ester a matsayin sashi na sarkar sura.
2, bambance bambance na tsari
Sarkar kwayar halitta ta TPU tana da (AB) (AB)
Dangane da tsarin daban-daban na A, TPU za'a iya raba ta Polyester, nau'in polycapratone, nau'in polycarate, da sauran nau'ikan yau da kullun sune TPU da Polyester nau'in TPU da TPU.
Daga cikin adadi da ke sama, zamu iya ganin sarƙoƙi na gaba ɗaya na polyether TPU da kuma babban sarkar polyeth ko polyoler polyol.
3, kwatancen wasan kwaikwayon
Polyether polyols sune polymers barasa ko kuma gungun ether a gefe na ƙarshen ƙungiyoyin Sarkar. Saboda ƙarfin ƙarfin haɗin gwiwar ta na ɗaukakawa a cikin tsarin sa da sauƙin juyawa.
Saboda haka, polyether tpu yana da kyakkyawan ƙarancin zafin jiki, hydrolyyis juriya, da kuma hade da karfi da hannu da karfin gwiwa da karfin bakin ciki ba su da talakawa.
Groupsungiyoyin ESTRE da ƙarfi mai ƙarfi da ƙarfi a cikin polyester polyols na iya samar da shaidu na sarkar sarkar, yin aiki a matsayin maki na roba. Koyaya, polyester polyes yana yiwuwa ne ga fashewar kwayoyin saboda mamayewa na ruwa, kuma acid ɗin da acid ɗin zai iya ƙaruwa da colyze mai hydrolysis na polyester.
Sabili da haka, polyester tpu yana da kyakkyawan kayan aikin injiniyan, sa juriya, tsayayya da juriya, lalata zazzabi, amma mai sauƙin sarrafawa, amma m aiki, amma talauci hydrolysis.
4, hanyar ganowa
Amma wanda TPU ya fi kyau amfani da shi, ana iya faɗi cewa zaɓi ya kamata ya dogara da bukatun jiki na samfurin. Don samun kyawawan kayan aikin injin, yi amfani da polyester tpu; Idan la'akari da tsada, da yawa, da kuma yanayin amfani da samfurin, kamar sanya samfuran Airower, polyether tpu ya fi dacewa.
Koyaya, lokacin zabar, ko ba da gangan haɗuwa da nau'ikan tpus biyu, ba su da bambanci mai mahimmanci a cikin bayyanar. To ta yaya ya kamata mu bambanta su?
Akwai zahiri hanyoyi, kamar su sunadarai na sunadarai, gas chromatography-taro spectometry (da sauransu), waɗannan hanyoyin suna buƙatar buƙatun fasaha kuma suna ɗaukar dogon lokaci.
Shin akwai wata hanya mai sauƙi kuma mai sauri hanya? Amsar ita ce Ee, alal misali, hanyar kwatankwacin hanyar da yawa.
Wannan hanyar kawai tana buƙatar density guda ɗaya. Shan-daidaitaccen tsarin ƙasa na roba na roba a matsayin misali, matakan ma'auni shine:
Sanya samfurin a cikin teburin auna, nuna nauyin samfurin, kuma latsa maɓallin Shigar don tunawa.
Sanya samfurin cikin ruwa don nuna darajar yawa.
Tsarin ma'aunin yana ɗaukar kimanin 5 seconds, sannan a iya bambance shi dangane da ƙa'idar cewa yawan polyetter nau'in TPU ya fi wannan nau'in polyeter tpu. Adireshin takamaiman kewayon shine: polyether nau'in TPU -1.13-1.13-1.18 g / cm3; Polyester tpu -1.18-1.22 g / cm3. Wannan hanyar na iya rarrabe tsakanin TPU POYTER nau'in da nau'in polyether.
Lokaci: Jun-03-2024