Zvishandiso zveTPU mukuvaka Zvishandiso zvekudzivirira mvura

TPU (Thermoplastic Polyurethane)Inoshandiswa mukuvaka nzira dzekudzivirira mvura mumhando dzakasiyana-siyana, kusanganisira nzira dzekufema dzisingapindi mvura, mapepa ekudzivirira mvura, mafirimu anonamira anopisa, uye machira, kuti igutse zvinodiwa zvekudzivirira mvura, kudzivirira hunyoro, uye kuvhara kwemamiriro akasiyana.

√ Mafomu Makuru Ekunyorera uye Mienzaniso

• Mapepa Ekudzivirira Mvura / Matanda: Anoshandiswa sezvikamu zvisingapindi mvura zvinoshanda zvakanyanya kumapurojekiti makuru akadai sematenga, maburi epasi, matuneri, mabhiriji, uye matangi emvura.
• Matumbu Anofema Asingapindi Mvura: Rega mhute yemvura ibude uku ichivharira mvura yekunze kupinda - yakakodzera divi rekunze remadziro ekudzivirira mhepo kuti iwedzere kupenya kwemhepo, inoshandiswa pamadziro, matenga, uye zvivakwa zvematanda.
• Zvishandiso Zvinovhara Zvisingapindi Mvura: Zvinoshandiswa pakubatanidza, kumucheto kwefenzi, midzi yemapaipi nezvimwe zvinhu, kana sezvinhu zvinovhara zvinoputika nemvura zvekuwedzera nekuvaka majoini.
• Mapendi Asingapindi Mvura: Anoiswa sependi pamusoro pekongiri, simbi, nezvimwe zvinhu kuti agadzire firimu risingapindi mvura risina musono - rakakodzera madziva, pasi pemaindasitiri, nezvimwewo.
• Girazi rekuchengetedza rakarukwa: Firimu reTPU rakasimba uye rakasimba rinosunga zvidimbu zvegirazi zvakasimba kudzivirira kuputsika - rinoshandiswa mumadziro emaketeni epamusoro uye magirazi epadenga.

√ Maitiro Akajairika Ehunyanzvi uye Mashandiro

• Zvimiro zveMuchina/Zvemuviri:
  Simba rekusimba remachira asingapindi mvura rinowanzova 30–45 MPa, kureba pakuputsika kwe500–700%, ukobvu hwe0.2–0.5 mm.
  Machira eTPU akagadzirwa necomposite ane resistance yekuboorwa ≥80 N/mm² uye anoreba pakuputsika ≥300%.
• Kugara kwenguva refu uye Kugadzikana:
  Kunyunguduka kwemvura kunosvika 90°C, tembiricha yekudzika kwekupisa iri 70–90°C.
  Mushure memaawa mazana mashanu ekukwegura kwekupisa pa80°C, kurasikirwa kwesimba rekusimba <5%.
  Kushanda kwakasimba pa -40°C; mamwe magiredhi anogona kushandiswa kusvika -65°C.
• Zvakatipoteredza & Kuchengetedzeka:
  TPU haina chepfu, haina hwema, uye haina njodzi kune zvakatipoteredza.
  Fomu reupfu hwakasimba 100% harina kuburitsa VOC zvachose, zvichizadzisa zvinodiwa pakuvaka zvine girini.

√ Nzvimbo dzekuvaka nekushandisa

• Mashandisirwo Ekusanganisa: Semuenzaniso, kusanganisa 69.2% TPU, 30% rabha upfu, uye 0.8% defoamer kunogona kugadzira zvinhu zvisingapindi mvura zvinoshanda zvakanaka zvekuvhara jira risingapindi mvura nekukurumidza.
• Sarudzo yeMaitiro:
  • Upfu hweTPU: kuputira nejira rekupwanya + kudzvanya kunopisa
  • Firimu rinopisa reTPU: welding yepamusoro-soro kana ye ultrasonic
  • Pepa reTPU: welding yemhepo inopisa kana manamatisi akakosha ekubatanidza
• Kugadzikana kweThermal Kwakakosha: Kusapindirana nemvura kwakakosha pakuvaka kudzivirira mvura. Mamwe maTPU formulations anoora zvakanyanya mumvura inopisa kwenguva refu; hunyoro hwakawanda hunogona kukonzera hydrolysis zvichikonzera kutadza kushanda kweseal. Saka, kusarudza giredhi rinodzivirira hydrolysis kwakakosha zvikuru.
• Kurapa Pamusoro Kwakakosha: Pazvinhu zvine maburi kana zvakapfava, kushandisa primer inoenderana kunonatsiridza kunamira pakati peTPU coating ne substrate, zvichiita kuti jira risingapindi mvura rirambe rakakwana.

• Pakuvaka maapplication ekudzivirira mvura,TPU yakavakirwa papolyetheryakagadzirwa naYantai Linghua zvinhu zvitsvaKazhinji ndiyo sarudzo iri nani nekuti ma ether bonds ayo (-COC-) anopa simba rakasimba rekudzivirira hydrolysis uye anonyanya kukodzera nzvimbo dzine mvura kwenguva refu.