Stretch Zaj duab xis muaj qhov zoo ntawm toughness, cuam tshuam tsis kam, pob tshab thiab nws tus kheej-adhesiveness.Txawm hais tias siv rau kev ntim khoom ntim khoom lossis cov khoom thauj khoom thauj khoom, nws tuaj yeem tiv thaiv kev ya raws, plua plav thiab txo kev ua haujlwm, txhim kho kev ua haujlwm, thiab ua tiav lub hom phiaj ntawm kev tiv thaiv cov khoom thiab txo cov nqi.Stretch zaj duab xis yog ib hom ntim khoom siv los ntim cov khoom.Nws qhov tshwj xeeb tshwj xeeb yog tias nws tuaj yeem siv cov cuab yeej siv tshuab ncab lossis manually tsim kev ntxhov siab deformation.Yuav ua li cas tswj lub viscosity ntawm stretched zaj duab xis?

Muaj ntau cov ntaub ntawv rau cov yeeb yaj kiab stretch, uas feem ntau yog nyob ntawm daim ntawv thov teb ntawm cov khoom, yog li yog tias koj xav tswj cov viscosity ntawm stretch zaj duab xis, koj tuaj yeem ua haujlwm hnyav ntawm cov khoom.Tsis yog txhua tus C4-LLDPE tuaj yeem siv rau cov yeeb yaj kiab ncab.C6 thiab C8 cov ntaub ntawv feem ntau siv vim lawv yooj yim ntawm kev ua.

Kub kuj tseem yuav cuam tshuam rau viscosity ntawm cov zaj duab xis stretch.Feem ntau, peb muab cov khoom tso rau hauv ib puag ncig ntawm 15 txog 25 degrees.Yog tias qhov kub siab tshaj 30 degrees, viscosity yuav nce;yog tias nws qis dua 15 degrees.Lub sijhawm ntawd, viscosity yuav deteriorate dua.Txij li thaum yuav muaj polyethylene hauv zaj duab xis ncab, peb tuaj yeem kho tus nqi ntawm polyethylene hauv cov nplaum txheej kom ua tiav qhov xav tau viscosity.

Txij li thaum lub cev hnyav molecular faib ntawm cov zaj duab xis ncab yog qhov nqaim thiab kev ua haujlwm yog qhov nqaim, feem ntau tsuas yog 5% ntawm polyethylene tuaj yeem muab ntxiv kom txo tau cov viscosity yaj, yog li ntawd lub flatness ntawm stretched zaj duab xis kuj yuav txhim kho.Ua kom lub flatness ntawm zaj duab xis.