Mu 1958, kampani ya Soconzi ya Conrive (tsopano adatchulanso Lubezol) adalembetsa ku TPU Brand Evane koyamba. Kwa zaka 40 zapitazi, pakhala mayina oposa 20 padziko lonse lapansi, ndipo mtundu uliwonse umakhala ndi zinthu zingapo zingapo. Pakadali pano, zopanga zopanga zopanga makamaka zimaphatikizapo Baba, Conserro, abrozial, Human Bungwe, Shambua, Mankhwala a Xuchuan, etuchuan mankhwala, etc.
1, gulu la tpu
Malinga ndi mawonekedwe ofewa, imatha kugawidwa mu mtundu wa polyether, mtundu wa polyther, ndi mtundu wa bunadiene, womwe umakhala ndi gulu la Elether, kapena gulu la Etherne.
Malinga ndi mawonekedwe olimba, imatha kugawidwa mu mtundu urethane mtundu wa urethane urea, womwe umapezeka mosiyanasiyana kuchokera ku Ethyle Glycol unyolo wowonjezera kapena diamine unyolo. Gulu wamba limagawidwa mu mtundu wa polyester ndi mtundu wa polyther.
Malinga ndi kukhalapo kapena kusowa kwa kulumikizana, kumatha kugawidwa kukhala ma thermoplastic ndi semi thermoplastic.
Wakaleyo ali ndi mawonekedwe owoneka bwino ndipo palibe zomangira zolumikizana; Chotsatirachi chili ndi maulalo ochepa olumikizidwa monga allpanic acid ester.
Malinga ndi kugwiritsa ntchito zinthu zomalizidwa, amatha kugawidwa magawo (mawonedwe osiyanasiyana), mapaipi (mapaipi, mafilimu (mafilimu, zomata)
2, kaphatikizidwe ka tpu
TPU ndi ya polyurethane malinga ndi kapangidwe kake. Ndiye, kodi zinatheka bwanji?
Malinga ndi kaphatikizidwe kosiyanasiyana, imagawika makamaka polymerization ndi yankho la polymerization.
Mu zochuluka za polymerization, zitha kugawidwa mu njira ya polymerization polymerization ndi njira imodzi yotengera kupezeka kapena kusapezeka kwa chisamaliro:
Njira yosinthira prephelmerization imaphatikizapo kuchita diisocyanate ndi macromolecular diols kwakanthawi musanaonjezere utoto wowonjezera TPU;
Njira imodzi yomwe imaphatikizapo kusakaniza mosakanikirana ndi ma mucrorolecular diols, diisoctanesi, ndi owonjezera owundana kuti apange TPU.
Yankho la Polymerization limaphatikizapo kusungunula koyamba diisocynate mu soloculate, kenako ndikuwonjezera ma a macrorolecular kuti muchite nthawi yayitali, kenako ndikuwonjezera owonjezera utoto kuti apange TPU.
Mtundu wa gawo lofewa la TPU, kulemera kwa ma celecular, zinthu zolimba kapena zofewa, ndi mtundu wa TPU umatha kukhudza kachulukidwe ka TPU, ndi kachulukidwe kakang'ono ka TPU, ndi kachulukidwe kakang'ono koyerekeza ndi rubles ena ndi ma pulasitiki ena.
Pamavuto omwewo, kuchuluka kwa polytherm mtundu tpu ndi wotsika kuposa mtundu wa polyester tpu.
3, kukonza kwa tpu
Tinthu ta tpu zimafuna njira zosiyanasiyana kuti apange zomaliza, makamaka pogwiritsa ntchito njira zosungunulira ndi yankho la TPU.
Kusintha kosungunuka ndi njira yomwe imagwiritsidwa ntchito popanga pulasitiki, monga kusakaniza, kugubuduza, kuperewera, kuwomba, ndikuumba;
Kukonza njira ndi njira yokonzekera yankho mwa kusungunuka tinthu tofana kapena kuwauza mwachindunji mu zosungunulira, kenako ndikukutirani, kuluka, ndi zina zotero.
Cholemba chomaliza chopangidwa kuchokera ku tpu nthawi zambiri sichimafunikira motaya mtima, zomwe zimafupikitsa zida zopangira ndikubweza.
4, magwiridwe antchito tpu
TPU imakhala ndi modulus kwambiri, mphamvu yayikulu, okwera kwambiri komanso olemetsa, olemetsa kuvala madzi kukana madzi, kukana kutentha pang'ono, komanso kukanidwa.
Mphamvu yayitali, yokwezeka kwambiri, komanso yopanda tanthauzo lenileni pali zabwino zonse za TPU.
Xiau idzachita bwino kwambiri za makina a TPU kuchokera kuzomwe zili ndi mphamvu zokhala ndi nyonga, kulimba, kulimba, kuvuta, etc.
Kuchuluka kwamphamvu komanso kukwera kwambiri
TPU imakhala ndi mphamvu zabwino kwambiri. Kuchokera pazomwe zili pansipa, titha kuona kuti mphamvu ya anthu ooneka ngati mtengo wa polyvinyl kuposa a polyvinyl chloride chloride chloride.
Kuphatikiza apo, TPU imatha kukwaniritsa zofunikira za malonda omwe ali ndi zowonjezera zochepa kapena zosawonjezera zowonjezera zomwe zimawonjezeredwa pakukonzekera, zomwe ndizovuta kuti zikhalenso ndi zida zina monga pvc ndi mphira kuti mukwaniritse.
Kulimba mtima kumakhala kovuta kwambiri kutentha
Kukhazikika kwa tpu kumatanthauza kuchuluka kwa komwe kumamuthandizanso kuchitika koyambirira pambuyo poti kusokonezedwa, komwe ndi kuchuluka kwa kusinthika kwa ntchito yomwe akuyenera kuti apange chisokonezo. Ndi ntchito ya bodmuc modulus ndi mikangano yamkati ya thupi lotakata ndipo limakhala ndi kutentha kwambiri.
Kubwezeretsako kumatsika ndi kuchepa kwa kutentha mpaka kutentha pang'ono, ndipo kuthyolako kumachulukanso. Kutentha kumeneku ndi kutentha kwa crystallizani kwa gawo lofewa, lomwe limatsimikiziridwa ndi kapangidwe ka macromalecular diol. Polytherm mtundu tpu ndi wotsika kuposa mtundu wa polyester tpu. Pansi pa kutentha kwa crystallization, elastomer imakhala yolimba kwambiri ndipo imataya ma elalastity. Chifukwa chake, kulimba ndi chimodzimodzi ndi kubwezeretsanso pamalo a chitsulo cholimba.
Kulimbana kwamphamvu kumakhala kovuta A60-D80
Kuuma ndi chizindikiro cha kuthekera kwa zinthu zakutha kuthana ndi kusokonekera, kubisa, ndi kukanda.
Kuumitsa kwa tpu nthawi zambiri kumayesedwa pogwiritsa ntchito gulu lankhondo la and shore d hards, ndi gombe lomwe limagwiritsidwa ntchito pofewa tpus ndi shore d imagwiritsidwa ntchito kwambiri tpus.
Kuumitsa kwa tpu kumatha kusinthidwa ndikusintha magawo a zigawo zofewa komanso zolimba. Chifukwa chake, TPU imakhala ndi malo owuma kwambiri, kuyambira pamphepete mwa nyanja ya60-D80, ikuwulutsa kuuma kwa mphira ndi pulasitiki, ndipo ali ndi kutalika kwakukulu konse.
Pamene kuuma kwamphamvu kumasintha, malo ena a TPU amatha kusintha. Mwachitsanzo, kukulitsa kuuma kwa tpu kudzakupangitsa kusintha kwamayendedwe monga kuchuluka kwa kuwononga molulus, kutsika kwamphamvu komanso kuchulukana kwamilandu, ndikuwonjezera kukana kwachilengedwe, ndikuwonjezera kukana kwachilengedwe.
5, kugwiritsa ntchito tpu
Monga wabwino kwambiri, TPU ili ndi mbali zingapo zotsika ndipo zimagwiritsidwa ntchito kwambiri muzofunikira tsiku lililonse, zoseweretsa zamasewera, zoseweretsa, zokongoletsera, zokongoletsera, ndi minda ina.
Zipangizo Zosachedwa
TPU imagwiritsidwa ntchito makamaka ngati zida za nsapato chifukwa chotupa chake chabwino komanso kuvala kukana. Zogulitsa za nsapato zomwe zili ndi TPU zimakonda kuvala zopangidwa pafupipafupi kuposa zopangidwa ndi nsapato zokhazikika, choncho zimagwiritsidwa ntchito kwambiri pazogulitsa nsapato zazitali, makamaka nsapato zamasewera komanso nsapato zazing'ono.
sokosi
Chifukwa chofewa, mphamvu yabwino yotopa, imakhudzanso mphamvu yayikulu, ndikulimbana ndi kutentha kwambiri, ma tanks amapangira mafuta opanga, ndi zida zamakina.
chingwe
TPU imapereka misozi, kuvala kukana, ndi kugwada, ndi kutentha kwapamwamba komanso kochepa ndikulimbana ndi chinsinsi cha chinsinsi. Chifukwa chake mumsika waku China, zingwe zapamwamba monga zingwe zowongolera komanso zingwe zamagetsi zimagwiritsa ntchito tpus kuteteza zidutswa za mapangidwe a zingwe zovuta, ndipo mapulogalamu awo akuchulukirachulukira.
Zipangizo Zachipatala
TPU ndi nkhani yotetezeka, yokhazikika komanso yokhazikika, yomwe sipadzakhala ndi Phtate ndi zinthu zina zovulaza, ndipo zimasamukira m'magazi kapena zakumwa zina mu catheter catheter kapena chithandizo chamankhwala choyambitsa mavuto. Imakhalanso ndi kalasi yapadera yowonjezera ndi jakisoni TPU.
filimu
Kanema wa TPU ndi filimu yopyapyala yopangidwa kuchokera ku zinthu za TPU granolar kudzera njira zapadera monga kugundana, kuponyera, kuwomba, ndikuwomba. Chifukwa champhamvu kwambiri, kuvala kukana, kututa bwino, komanso kukana nyengo, zida za TPU zimagwiritsidwa ntchito kwambiri m'makampani, zovala zoyenerera, zamagetsi, zamankhwala, zamankhwala.
Post Nthawi: Feb-05-2020