A cikin 1958, kamfanin sinadarai na gida (yanzu suna sake sunan Lubrizol) sun yi rijistar TPU Brand Estane a karo na farko. A cikin shekaru 40 da suka gabata, akwai sunaye sama da 20 a duniya, kuma kowannen alama yana da samfurori da yawa. A halin yanzu, TPU RAW kayan masana'antu sun hada da Basf, Covestro, Lubrizol, Hunthai Hench, Ruihua, sunadarai na Xuchuan, da sauransu.
1, rukuni na tpu
According to the soft segment structure, it can be divided into polyester type, polyether type, and butadiene type, which respectively contain ester group, ether group, or butene group.
Dangane da tsarin wuya, ana iya rarraba shi zuwa nau'in Urethane da nau'in Urethane Urea, wanda aka samu daga sarkar glycol ko diamine glycol. An rarraba rarrabuwa a cikin nau'in polyester da nau'in polyether.
Dangane da kasancewar ko rashin haɗin haɗi, ana iya raba shi zuwa tsarkakakken thermoplalastic da Semi Thermoplalic.
Tsohon wani tsari ne mai kyau kuma babu haɗin gwiwar hado. Latterarshe ya ƙunshi ƙananan adadin haɗin gwiwar masu haɗin kai kamar su Allophanic acid acid.
Dangane da amfani da samfuran da aka gama, ana iya raba su cikin sassa (kashi daban-daban), bututun ruwa (zanen gado), kayan adon, mayafi, kibanci, da dai sauransu.
2, kira na tpu
TPU na Polyurethane cikin sharuddan kwayoyin halitta. Don haka, ta yaya ya tara?
Dangane da matakai daban-daban na tsarin aiki, ana raba shi zuwa polymerization da maganin maganin polemerization.
A cikin Bulk Polymerization, ana iya raba shi zuwa prewarzar hanya ta polymerization da hanya daya bisa mataki dangane kasancewa ko rashin dauki dauki:
Hanyar propermerization ta ƙunshi amsawa da diisecyanate da macromeleaculle diols na wani lokaci kafin ƙara sarkar tsawo don samar da tpu;
Hanyar mataki daya ya ƙunshi daidaito da kuma mayar da diols Diols, diiscoleyanates, da sarkar fadada don samar da TPU.
Magani na maganin ya ƙunshi narkar da Diiscolyanate a cikin wani abu mai ƙarfi, sannan ƙara macromemolulular diols don amsawa na wani lokaci, kuma a ƙarshe ƙara sarkar fadada don samar da tpu.
Nau'in sashi mai laushi na tpu, nauyin kwayar halitta, mai wuya ko taushi, da kuma yanayin hadarin TPU na iya shafar yawan tpu, tare da yawan bambance-bambancen da aka kwatanta da abubuwan shara da robobi.
A daidai wannan harden, da yawa na polyether nau'in TPU ya yi ƙasa da wannan nau'in Polyester TPU.
3, sarrafa tpu
Abubuwan da TPU suna buƙatar matakai daban-daban don samar da samfurin ƙarshe, galibi suna amfani da samfurin ƙarshe da hanyoyin bayani don sarrafa na TPU.
Tsarin sarrafawa shine tsari da aka saba amfani dashi a cikin masana'antar filastik, kamar haɗawa, mirgina, fashewa, busa mai kama da gyada;
Magani mai sarrafa shine tsari na shirya mafita ta hanyar narkar da barbashi ta hanyar da sauran ƙarfi ko kuma polymerized su kai tsaye, da sauransu.
Samfurin ƙarshe da aka yi daga TPU gabaɗaya ba ya buƙatar amsawa mai ƙarfi, wanda zai iya rage yanayin samarwa da kayan juyawa.
4, aiwatarwa na tpu
Tpu yana da m modulus, babban ƙarfi, babban elongation da kuma elebationchity, mai kyau sanya juriya, juriya, juriya mai, da juriya da zazzabi.
Stringarfin tenarfafa tenerile, babban elongation, da low engation m ƙimar ƙasa na tsawon lokaci duk suna da cikakken fa'idodin tpu.
Xiaou zai fi dacewa a kan kayan aikin na tpu daga karfin da suke da karfin gwiwa da kuma elongation, resciending, mawuyacin hali, mawuyacin hali, da sauransu.
Karfin tsayayyen tsayayyen
TPU tana da ƙarfi mai ƙarfi da elongation. Daga bayanan a cikin adadi da ke ƙasa, zamu iya ganin cewa ƙarfin karfin polyether TPU sun fi na filastik na polyvinyl na filastik da roba.
Bugu da kari, TPU na iya biyan bukatun masana'antar abinci tare da kadan ko babu abubuwan da aka kara a lokacin sarrafa shi, wanda kuma yana da wahala ga wasu kayan kamar PVC da roba don cimma.
Rescience yana da matukar kulawa da zazzabi
Juyin tpu yana nufin matakin da sauri ya murmure zuwa ainihin yanayinsa bayan makamashi da ake buƙata don aikin da ake buƙata don samar da nakasassu. Aiki ne na modulic modulus da kuma tashin hankali na roba na roba kuma yana da matukar kulawa da zazzabi.
Maimaitawa yana raguwa tare da rage zafin jiki har sai wani zazzabi, da kuma eleberia ya ƙara sake. Wannan zazzabi shine yawan zafin jiki na sumber sashi, wanda aka ƙaddara shi da tsarin da diol na kimiya. Polyether TPU ya kasance ƙasa da nau'in polyester TPU. A yanayin zafi a kasa da zazzabi zazzabi, elastomer ya zama da wahala kuma ya rasa elasticity. Saboda haka, sayayya yayi kama da maimaitawa daga saman ƙarfe mai ƙarfi.
Rikicin Hardness shine Shine A60-D80
Taurin kai ne mai nuna ikon kayan abu don tsayayya da nakasa, ya zira kwalliya, da karawa.
Yawancin lokaci ana auna wahalar TPU ana amfani da ita ta amfani da gaci a tarkace a tarkace, tare da gaci da aka yi amfani da shi don tsananin tpus tpus.
Za'a iya daidaita wuya tpu ta hanyar daidaita yawan rabo mai laushi da wuya sarkar. Sabili da haka, TPU tana da kewayon Hardness mai tsananin ƙarfi, wanda aka jera daga gatean A60-D80, yana haifar da harabar roba da filastik, kuma yana da babban elasting elasting.
Kamar yadda Hardness ya canza, wasu kaddarorin na TPU na iya canzawa. Misali, kara girman canje-canje na TPU zai haifar da canje-canje na tiye kamar karfin yanayi, karuwar elongation, ya kara yawan zafi, da kuma ƙara yawan zafi.
5, aikace-aikacen tpu
A matsayin mai kyau elastomer, TPU yana da kewayon tsarin samfuran da yawa na ƙasa kuma ana yin amfani da shi sosai a cikin abubuwan yau da kullun, kayan wasanni, kayan wasa, kayan ado, kayan ado.
Kayan takalmin
Ana amfani da TPU yafi don kayan takalmin saboda kyakkyawan yanayin elasticity da sa juriya. Kayan samfuran da ke ɗauke da TPU sun fi dacewa da kayan kwalliya fiye da samfuran takalmin kuɗi na yau da kullun, don haka ana samun amfani sosai a cikin samfuran ƙwayoyin takalmi na yau da kullun, musamman wasu takalmin wasanni da takalma.
soci
Saboda taushi, da ƙarfi mai yawa, ƙarfin tasiri zuwa ga ƙasa da ƙananan kayan aiki kamar jirgin sama, tpu, motoci, motocin injin, da kayan aikin injin, da kayan aikin injin, da kayan aikin injin.
na USB
TPU tana ba da juriya, sa juriya, da kuma dadewa da halaye, tare da ƙarancin ƙarfin zazzabi kasancewa mabuɗin na USB. Don haka a kasuwar kasar Sin, igiyoyin ci gaba kamar suna sarrafa igiyoyi da igiyoyin wutar lantarki don kare kayan haɗin kebul na USB, kuma aikace-aikacen su suna ƙara yawan yadu.
Kayan aikin likita
Tpu wani hadari ne, mai tsauri da ingancin kayan pvc mai inganci da sauran abubuwa masu cutarwa ko kuma jakar likita don haifar da tasirin gaske. Hakanan ya zama ingantacciyar rarrabuwa ta hanyar yin allura ta musamman tpu.
filim
Fim na TPU wani fim ne na bakin ciki wanda aka yi daga kayan tpu granular ta hanyar matakai na musamman kamar mirgine, simintin, busa, da shafi. Saboda ƙarfinsa mai ƙarfi, sanye da juriya, tsayayya da yanayin yanayi, ana amfani da fina-finai na TPU, kayan zane, kayan aiki, sunadarai, na lantarki, da kuma sauran filayen.
Lokaci: Feb-05-2020