Thermoplastic polyurethane (TPU) iboka rakasiyana repurasitiki rakagadzirwa apo polyaddition reaction inoitika pakati pe diisocyanate uye rimwe kana kupfuura diols. Yakatanga kugadziridzwa muna 1937, iyi polima inogoneka yakapfava uye inogadziriswa kana yapiswa, yakaoma kana yatonhodzwa uye inokwanisa kudzokororwa kakawanda pasina kurasikirwa nehunhu. Inoshandiswa sepurasitiki yeinjiniya inogoneka kana kutsiva rabha yakaoma, TPU inozivikanwa nezvinhu zvakawanda zvinosanganisira: kureba kwepamusoro uye kusimba kwesimba; elasticity yayo; uye kune madhigirii akasiyana, kugona kwayo kuramba mafuta, girizi, zvinonyungudutsa, makemikari uye abrasion. Aya maitiro anoita kuti TPU ive yakakurumbira zvakanyanya pane dzakasiyana siyana dzemisika uye maapplication. Inherent flexible, inogona kukwizwa kana jekiseni kuumbwa payakajairwa thermoplastic kugadzira michina kuti igadzire zvinhu zvakasimba zvakajairwa shangu, tambo & waya, hose uye chubhu, firimu uye shizha kana zvimwe zvigadzirwa zveindasitiri. Inogona zvakare kusanganiswa kugadzira yakasimba epurasitiki moldings kana kugadziridzwa uchishandisa organic solvents kuti igadzire laminated machira, ekudzivirira machira kana anoshanda adhesives.
Chii chinonzi Waterproof TPU jira?
Mvura isina mvura TPU jira ndeye bi - layer membrane ndeye TPU kugadzirisa maitiro akawanda.
Batanidza High kubvarura simba, kusapinda mvura, uye yakaderera mwando kutapurirana. Yakagadzirirwa machira lamination process. Inozivikanwa nekuenderana kwayo, inoburitsa mhando yepamusoro, yakanyanya kuvimbika thermoplastic polyurethane (TPU) uye copolyester isingapindi mvura inofema mafirimu muindasitiri. Iyo inochinja-chinja uye yakasimba TPU - yakavakirwa mafirimu uye shiti anoshandiswa kubatanidza machira, kudzivirira mvura, uye mhepo kana mvura yemidziyo yekushandisa. Iwo akanyanya kutetepa uye hydrophilic TPU mafirimu uye pepa akanyatsokodzera kugadzirwa kune machira. Vagadziri vanogona kugadzira mutengo - inoshanda isingapindi mvura inofema machira macomposites mune imwechete firimu - kune - machira lamination. Izvo zvinyorwa zvinopa kufema kwakatanhamara kwekunyaradza kwemushandisi. Iwo ekudzivirira machira mafirimu uye pepa anowedzera puncture, abrasion, uye makemikari kuramba kune machira avanosungirirwa.
Nguva yekutumira: Chivabvu-06-2024