TPU-zakuthupi - kuti ntchito ndi chiyani?

Palibe lero munthu sangathe kudabwa mawu monga TPU-zakuthupi. Kodi ndi Komabe, aliyense amadziwa. Kodi ntchito? Tchulani ali? Kodi kusiyanitsa ndi polyurethane thermoplastic jekeseni? Ngakhale kufanana akuoneka, magawo ntchito ndi katundu ogula wawo chosiyana.

TPU-zakuthupi - ndichiyani?

Kotero kwambiri. TPU-zakuthupi - ndichiyani? Kodi zizindikiro ndi chibadidwe izo? Ndipotu, n'zosavuta kusiyanitsa. The zakuthupi ali wochepa yotsalira kupsyinjika, kulola kugwiritsa ntchito nkhani adalenga kuchokera mmenemo, monga zisindikizo. Kachiwiri, TPU akhoza zobwezerezedwanso, amene amapulumutsa pa feedstock lapansi. Chachitatu, pakalibe zakuthupi chothandizira kwathunthu. Kachinayi, izo amakhala ndi moyo wautali utumiki. Komanso, nkhani kugonjetsedwa ndi kumva kuwawa ndi hydrolysis kanthu tizilombo.

Mfundo imeneyi khalidwe chibadidwe ndi polyurethanes akamagwira njira ochiritsira. Komabe, okha TPU angathe kukonzedwa pa zida lakonzedwa kupanga mapulasitiki wamba - makina, zipangizo ndi mizere, wotchedwa jekeseni akamaumba makina.

Pamene iyo inayamba?

Ndipo tsopano pang'ono za mbiri. Zinaoneka TPU-zakuthupi? zifukwa izi mukopedwe maonekedwe ake chiyani? Zonsezi zinayambira, mbiri yakale amati, mwamsanga 1865. Company chinkhoswe mu kupanga mipira billiard, anapangidwa kulengeza zachilendo. Amene wapeza chuma kuti m'malo minyanga zikwi khumi madola US Akulonjezedwa. Mu 1869, Dzhon Hayat kugwiritsa ntchito nitrocellulose. Iye anatha kukwaniritsa zabwino kwambiri ndi katundu, kenako anaganiza kukhazikitsa kampani yake. Kuyambira nthawi imeneyo anayamba kukula mofulumira akamaumba makina jekeseni ndi zipangizo, iwo amapangidwa. Pakali pano, makampani lakwaniritsa pamwamba kwambiri.

kupanga TPU

kupanga ndondomeko ndi chiyani? TPU-zakuthupi - ndichiyani pa ulimi? Tiyeni tiyambe ndi zipangizo zopangira. Kwa kupanga TPU chofunika granules analandira kale anachita zigawo polyurethane. Kumene, poyamba ali nazo katundu amene amalola zinthu lithe. Jekeseni akamaumba makina hopper amatitsatsa granules zomwezi. Komanso iwo kumadyetsedwa ndi wononga mu zone magetsi. Kenako, misa pulasitiki angathe kubayidwa mu nkhungu pressurized (mu kupanga mbali zovuta) kapena extruded, i.e. extruded mwa nozzle ndi - kutsegula kasinthidwe makamaka (kupanga mbali osavuta, monga ndodo, n'kupanga, mapepala).

ubwino

Mwachidule, kuphatikiza makhalidwe mankhwala TPU pamodzi ndi njira processing awo zimathandiza kupeza zipangizo ndi zazikulu magawo thupi. Mmodzi wa waukulu Mwachitsanzo, mkulu kutentha kukana. Ambiri mankhwala opangidwa kuchokera TPU, Koyamba olimbikitsa kutentha ndi 120-140 madigiri Celsius. Pankhaniyi, nkhani utakhazikika kwathunthu akuchira onse a magawo ake. Ngakhale polyurethanes wamba pambuyo kutentha zimenezi sizingathetsedwe anachira.

Tanena kale komanso kuthekera yobwezeretsanso nkhaniyo. mbali unusable wosweka ndi kutumiza.

Ndithu phindu kulimbikira mkulu kuvala. Choncho, mankhwala angathe kutumikira monga chitetezo chabwino. zakuthupi kugonjetsedwa zinawombedwanso ndi cheza dzuwa. Ambiri, ubwino n'zotheka kuti malonda kwambiri, zomwe ndi makhalidwe chidwi. Zopangidwa nkhaniyi, mwachitsanzo, chimakwirira kwa Samsung, Nokia ndi mafoni ena. mankhwala amenewa ndi kutchuka kwambiri lero. Komabe, zimene mankhwala mungasankhe, onetsetsani kukhala osangalala.