PU npaus (polyurethane ua npuas ncauj) thiab pe npuas ua npuas (polyethylene ua npuas ncauj) yog ob qho khoom siv polymer polymer. Vim lawv cov qauv siv tshuaj txawv txawv, lawv txawv hauv cov khoom siv lub cev, cov ntawv thov kev thov, thiab lwm yam kev sib txawv. Cov kev sib txawv tshwj xeeb yog raws li hauv qab no:
Cov Khoom Xwm Xwm thiab Cov Txheej Txheem Ntau Lawm
PU ua npuas ncauj: Nws tsim los ntawm cov tshuaj lom neeg ntawm isocyanate thiab polyol, teej tug "ua npuas ncauj". Thaum lub sij hawm ua npuas dej, roj av (xws li cov pa roj carbon dioxide) yog tsim tawm, kev sib sau ua ke kaw {{- cov qauv ntawm tes. Nws lub hardness thiab ceev tuaj yeem tswj hwm los ntawm kev kho cov kev faib ua feem ntawm cov ntaub ntawv raw, ua rau ntau yam khoom muag thiab nyuaj ntau yam.
PE Ua Npuas Ncauj: Nws yog raws cov polyethylene cob ua cov khoom siv raw. Tom qab ntxiv cov foaming tus neeg sawv cev (xws li Butane), nws yog tsim los ntawm high- kub extrusion thiab nthuav dav, tsuas yog "cov khoom siv ua npuas ncauj". Cov txheej txheem ua npuas ncauj tso siab rau kev hloov pauv ntawm lub xeev (roj nthuav), nrog ib qho feem ntau kaw {}} ntawm tes qauv. Qhov ntau ntawm kev hloov kho rau ntom ntom thiab hardness yog qhov tsawg kuj yog txwv, thiab nws feem ntau yog ntawm nruab nrab kom tsawg hardness.
Qhov sib txawv hauv cov khoom ntiag tug lub cev
Ceev thiab hardness
PU ua npuas ncauj: Nws muaj qhov tseem ceeb heev loj heev (0.02-0.5g / cm³). Mos pu (xws li rooj zaum cushions) yog mos nrog lub siab resilience thiab tuaj yeem rov qab sai tom qab nias. Lub zog pu (xws li yees rwb thaiv tsev cov khaubncaws sab nraud povtseg) yog ib qho nyuaj thiab ntom, nrog muaj zog load {{bearing} cov kabmob muaj peev xwm.
PE Ua Npuas Ncauj: Nws muaj qhov tsis tshua muaj ntom ntom (feem ntau 0.03-0.1g / cm³). Nws yog zuag qhia tag nrho muaj "nruj" thiab rov qab maj mam thaum nias. Nws lub hardness feem ntau qis dua li ntawm cov tawv tawv, ua cov ntaub softer rau cov khoom mos tab sis nrog ntau ruaj ntseg txhawb (tsis tau txais ntau dua rau kev sib tsoo).
Thaum Tshav Kub Kub Ua Haujlwm thiab Tshuaj Txom Nyem
PU ua npuas ncauj: Nws muaj qhov kub kub nce siab, nrog ntev - term kev pabcuam kub feem ntau xws li 80 degree. Nws nyhav mus muag muag thiab deform thaum qhov kub tshaj 100 degree. Nws cov tshuaj ruaj khov yog tsis zoo, raws li nws yog yooj yim corroded los ntawm cov kuab tshuaj organic (xws li dej cawv thiab yuav swell lossis tawg raws li kev tiv tauj.
PE Ua Npuas Ncauj: Nws muaj qhov kub zoo dua thiab tuaj yeem siv stabnably thiab tuaj yeem siv stably nyob rau hauv thaj tsam ntawm -60℃rau 100 degree. Nws tsis yog yooj yim deformed txawm tias thaum raug rau qhov kub ntawm 120℃rau lub sijhawm luv luv. Nws muaj cov tshuaj muaj zog ruaj khov, ua kom muaj cov kua qaub, alkalis, thiab feem ntau cov kuab tshuaj organic, thiab tsis yooj yim corroded los ntawm kua txhua hnub (xws li dej thiab xab npum).
Dej nqus thiab ua pa
PU ua npuas ncauj: PU nrog qhib - ntawm daim txhuam cev (xws li daim txhuam cev (xws li daim txhuam cev ntawm tes (xws li cov ntaub ntawv nqus dej ntawm tes (siv cov ntaub ntawv lim dej zoo (lim). PU nrog lub kaw - Cov qauv xov tooj ntawm tes muaj cov dej nqus dej tsawg, tab sis nws ua pa tau tseem muaj zog dua li ntawm PE.
PE Ua Npuas Ncauj: Vim nws tsuas yog kaw - pa dej (yuav luag tsis muaj dej tsis txaus)
Elasticity thiab kev cuam tshuam tsis kam
PU ua npuas ncauj: mos pu muaj qhov zoo tshaj plaws elasticity thiab high tensile thiab compression rov qab los ntawm lub rooj zaum qub) nyob rau hauv ntev- lub siab siab. Hard p p muaj cov kev cuam tshuam zoo thiab tuaj yeem nqus lub zog los ntawm kev deformation (xws li lub ntas yeej ntawm lub tsheb bumpers).
PE Ua Npuas Ncauj: nws elasticity yog "qeeb rov qab", thiab nws qhov kev cuam tshuam tsis ruaj khov. Thaum muaj kev cuam tshuam, nws disperses quab yuam dhau ntawm kev deformation qeeb thiab tsis muaj kev ua npuas ntev (piv txwv li PE
Qhov sib txawv hauv kev thov cov xwm txheej
PU ua npuas ncauj:
Mos Pu: siv raws li cov txheej puv hauv sofas thiab cov vaj tse nyob rau hauv kev nqus dej (nrog lub suab nrov), thiab cov qauv sib dhos kom nqus tau cov suab tsis zoo nkauj).
Lub Hard PU: thov raws li cov rwb thaiv tsev txheej nyob rau hauv cov tub yees thiab tshuab raj (xws li tsheb sib txuas
PE Ua Npuas Ncauj:
Ntim Ntim: Siv rau shopppoof ntim ntim khoom siv hluav taws xob thiab kev tiv thaiv cov khoom siv noo noo (nrog dej noo noo thiab qis {{kub tsis kam).
Txhua yam kev lag luam txhua hnub: ua haujlwm hauv yoga mats (muab ov {{free}
Kev teb muaj cov dej ntab (nrog qis ntom ntom thiab tsis - dej kev tiv thaiv cov iav (cuam tshuam} tiv taus thiab lub teeb ci ntsa iab).
Kev tiv thaiv ib puag ncig thiab rov ua dua tshiab
PU ua npuas ncauj: rov ua dua tshiab yog qhov nyuaj. Tshwj xeeb, so pu muaj cov qauv xoob thiab txo qis. Nws yuav tso cov pa roj thaum incinerated thiab yuav tsum muaj kev kho mob. Qee hom tshiab ntawm pu npuas siv bio - Cov ntaub ntawv raw, uas tuaj yeem txhim kho lawv cov kev ua tau zoo.
PE Ua Npuas Ncauj: Nws yog cov yas rov ua dua (cim raws li "PE" lossis "04") thiab tuaj yeem rov qab thiab ua tiav tom qab rov ua dua tshiab. Ntxiv mus, qee tus PE ua npuass tuaj yeem ua tiav cov phooj ywg zoo ib puag ncig los ntawm kev ntxiv cov neeg ua haujlwm tsis zoo, ua rau lawv zoo ib puag ncig.