Txhawm rau txo cov nqi khoom thiab tau txais kev ua haujlwm ntxiv,Polyurethane ThermoplasticElastomers tuaj yeem siv ntau dua siv cov neeg sawv cev tawv tawv kom nruj ntau yam thermoploplast thiab hloov cov ntaub ntawv roj hmab.
Vim yogpolyurethaneUa ib tug loj polar polymer, nws tuaj yeem sib xws nrog cov resins polgar lossis pob, xws li thaum siv ua ke nrog chlorinated polyethylene (CPE) los tsim cov khoom kho mob; Xyaw ua ke nrog ABS tuaj yeem hloov cov kev siv ntawm kev tsim cov tshuab thermoplastic plastics; Thaum siv ua ke nrog polycarbonate (PC), nws muaj cov khoom xws li cov roj tsis kam, roj tsis kam, thiab tuaj yeem siv los ua lub cev tsheb; Kev sib xyaw nrog Polyester tuaj yeem txhim kho nws txoj kev ua tau zoo; Ib qho ntxiv, nws tuaj yeem sib haum nrog polyvinyl chloride, polyoxymethylene (pom), lossis polyvinylidene chloride; Polyester Polyurethane tuaj yeem sib xws nrog 15% Nitrile roj hmab lossis 40% nitrile roj hmab / polyvinyl chlor sib xyaw roj hmab; Polyether Polyurethane tseem tuaj yeem tau zoo nrog 40% Nitrile Roj Hmab / polyvinyl chloride muab cov nplaum; Nws tseem tuaj yeem sib xws nrog Acrylonitrile Styrene (san) copolymers; Nws tuaj yeem tsim cov qauv sib txuas (IPN) qauv nrog reasur polysiloxanes. Feem coob ntawm cov kab lus saum toj no tau hais tawm tau twb tau ua tiav lawm.
Nyob rau hauv xyoo tsis ntev los no, tau muaj kev tshawb fawb ntau zuj zus ntawm kev ua kom nruj ntawm lub ntsej muag los ntawmTpuHauv Suav teb. Kev sib xyaw ntawm TPU thiab pom tsis tsuas yog txhim kho cov cua kub siab thiab cov khoom siv tshuab ua haujlwm ntawm TPU, tab sis kuj ua kom tawv tawv. Qee cov kws tshawb nrhiav tau pom tias nyob hauv kaum matrix, piv rau pom kev sib ntxiv rau TPU ntxiv mus rau ducture kom ductile bavure. Qhov sib ntxiv ntawm TPU tseem xaus pom nrog cov duab nco tau. Lub cheeb tsam crystalline ntawm pom kev pab theem ntawm cov duab nco txog Alloy, thaum lub caij amorphous Tpu thiab pom cov theem hloov kho. Thaum lub sijhawm rov qab ntsuas kub yog 165 ℃ thiab lub sijhawm rov qab yog 120, tus nqi rov qab los ntawm lub alloy nce mus txog 95%, thiab cov nyhuv rov qab yog qhov zoo tshaj plaws.
TPU yog qhov nyuaj uas tsis sib xws nrog cov roj hmab polyethylene, cov roj hmab prostreylene, thiab cov ntaub qoob loo khib nyiab, thiab tsis tuaj yeem tsim cov khoom siv sib xyaw nrog kev ua tau zoo. Yog li no, txoj kev kho deg xws li Plasma, Corona tso tawm, Cov nplaim hluav taws, nplaim taws, lossis cov roj ntsha yog feem ntau siv rau tom kawg. Piv txwv li, Asmeskas huab cua cov khoom lag luam thiab cov tuam txhab siv tshuaj yuav cuam tshuam ntau dua ntawm cov roj hmab uas muaj zog, thiab hnav tsis zoo ntawm ultra-siab rau polyurethane elastomers hauv 10% piv. Ntxiv mus, F2 / O2 kev kho roj ua kom muaj peev xwm siv rau kev sib tw elongated luv luv nrog rau saum toj no, uas tuaj yeem txhim kho lub ntsws thiab ua kom ntuag ntawm cov khoom siv sib xyaw.
Lub Sijhawm Post: Jan-19-2024