Comprehensive Analysis ntawmTPU PelletHardness: Parameters, Daim ntawv thov thiab ceev faj rau kev siv
TPU (Thermoplastic Polyurethane), raws li cov khoom siv elastomer ua haujlwm siab, qhov nyuaj ntawm nws cov pellets yog qhov tseem ceeb uas txiav txim siab cov khoom siv kev ua tau zoo thiab kev siv cov xwm txheej. Lub hardness ntau yam ntawm TPU pellets yog dav heev, feem ntau xws li los ntawm ultra-soft 60A mus rau ultra-hard 70D, thiab txawv hardness qib sib haum mus rau txawv kiag li lub cev zog.Qhov siab dua qhov hardness, lub zog rigidity thiab deformation tsis kam ntawm cov khoom, tab sis qhov yooj thiab elasticity yuav txo raws li.; ntawm qhov tsis sib xws, low-hardness TPU tsom ntau dua ntawm softness thiab elastic rov qab.
Hais txog kev ntsuas hardness, Shore durometers feem ntau siv hauv kev lag luam rau kev sim. Ntawm lawv, Shore A durometers yog tsim rau nruab nrab thiab qis hardness ntau ntawm 60A-95A, thaum Shore D durometers feem ntau yog siv rau high-hardness TPU saum 95A. Ua raws li cov txheej txheem txheej txheem thaum ntsuas: ua ntej, txhaj TPU pellets rau hauv cov ntawv xeem tiaj tiaj nrog lub thickness tsis pub tsawg tshaj 6 hli, kom ntseeg tau tias qhov chaw tsis muaj qhov tsis xws luag xws li npuas thiab khawb; Tom qab ntawd cia cov ntawv xeem sawv ntsug hauv ib puag ncig nrog qhov kub ntawm 23 ℃ ± 2 ℃ thiab cov av noo ntawm 50% ± 5% rau 24 teev. Tom qab cov ntawv xeem tau ruaj khov, nias lub indenter ntawm lub durometer vertically ntawm qhov chaw ntawm daim ntawv xeem, khaws cia rau 3 vib nas this thiab tom qab ntawd nyeem tus nqi. Rau txhua pawg ntawm cov qauv, ntsuas tsawg kawg 5 cov ntsiab lus thiab coj qhov nruab nrab kom txo tau qhov yuam kev.
Yantai Linghua New Material Co., Ltd.muaj ib tug ua tiav cov khoom kab npog cov kev xav tau ntawm txawv hardness. TPU pellets ntawm qhov sib txawv hardness muaj qhov sib faib ntawm kev ua haujlwm hauv daim ntawv thov:
- Hauv qab 60A (ultra-soft): Vim lawv zoo heev kov thiab elasticity, lawv feem ntau siv nyob rau hauv cov khoom uas tsis tshua muaj siab yuav tsum tau rau softness xws li cov me nyuam cov khoom ua si, decompression tuav pob, thiab insole linings;
- 60A-70A (mos): Sib npaug yooj yooj yim thiab hnav tsis kam, nws yog ib qho khoom siv zoo tshaj plaws rau cov khau kis las, cov hlua khi tsis muaj dej, cov hlab ntsha thiab lwm yam khoom siv;
- 70A-80A (nruab nrab-mos): Nrog kev ua tau zoo sib luag, nws tau siv dav hauv cov xwm txheej xws li cable sheaths, automobile steering wheel cover, thiab kho mob tourniquets;
- 80A-95A (nruab nrab-nyuaj mus rau nyuaj): Sib npaug rigidity thiab toughness, nws yog haum rau cov khoom uas yuav tsum tau ib tug tej yam kev txhawb zog quab yuam xws li tshuab luam ntawv rollers, game controller nyees khawm, thiab xov tooj ntawm tes;
- Tshaj 95A (ultra-hard): Nrog lub zog siab thiab cuam tshuam tsis kam, nws tau dhau los ua cov khoom siv rau kev lag luam iav, cov khoom siv tiv thaiv, thiab cov khoom siv hnyav poob siab.
Thaum sivTPU pellets,cov ntsiab lus hauv qab no yuav tsum tau sau tseg:
- Tshuaj compatibility: TPU yog rhiab heev rau polar solvents (xws li cawv, acetone) thiab muaj zog acids thiab alkalis. Kev sib cuag nrog lawv yuav yooj yim ua rau o los yog tawg, yog li nws yuav tsum tau zam nyob rau hauv xws li ib puag ncig;
- Kev tswj qhov kub thiab txias: Lub sijhawm siv sijhawm ntev kub yuav tsum tsis pub tshaj 80 ℃. Qhov kub thiab txias yuav ua rau kom cov khoom qub. Yog tias siv nyob rau hauv cov xwm txheej kub, cov khoom siv hluav taws xob tiv thaiv hluav taws xob yuav tsum tau siv;
- Cia tej yam kev mob: Cov khoom siv yog hygroscopic heev thiab yuav tsum tau muab cia rau hauv qhov chaw kaw, qhuav thiab qhov cua nrog cov av noo tswj ntawm 40% -60%. Ua ntej siv, nws yuav tsum tau qhuav hauv qhov cub 80 ℃ rau 4-6 teev kom tsis txhob muaj npuas thaum ua haujlwm;
- Kev hloov kho: TPU ntawm qhov sib txawv hardness xav tau kom phim cov txheej txheem tshwj xeeb. Piv txwv li, ultra-nyuaj TPU yuav tsum tau nce lub chim kub rau 210-230 ℃ thaum txhaj tshuaj molding, thaum mos TPU yuav tsum tau txo lub siab kom tsis txhob flash.
Post lub sij hawm: Aug-06-2025