HDPE yog dab tsi?
High Density Polyethylene (HDPE) yog ib qho uas tsis yog-polar thermoplastic resin nrog siab crystallinity. Cov tsos ntawm thawj HDPE yog milky dawb, thiab cov seem nyias yog translucent rau qee yam. PE muaj kev tiv thaiv zoo heev rau feem ntau hauv tsev thiab kev lag luam lossis tshuaj tiv thaiv, thiab yuav tsim cov tshuaj lom neeg thiab acid-resistant fermented lub cev. Corrosion, xws li corrosive oxidizer (concentrated nitric acid), aromatic chloride (xylene) thiab halogenated ntsug (carbon tetrachloride), anti-acidification thiab fermentation. Kev ua lag luam tau muab faib ua qib HDPE, zaub mov qib HDPE thiab qib kho mob tsim nyog rau qib khoom sib txawv. Qhov no muaj tseeb txawm nyob rau hauv chav tsev kub thiab txawm nyob rau hauv qis kub ntawm -4OF. HDPE yog cov thermoplastic polyolefin ua los ntawm copolymerization ntawm ethylene. Txawm hais tias HDPE tau tsim tawm hauv xyoo 1956, cov khoom siv dav dav no tseem tab tom tsim rau nws siv tshiab. Thermosetting yas" yog rhuab mus rau ib tug tej yam kub thiab ua ib tug solidified lub xeev. Txawm hais tias nws tseem ua kom sov, nws lub xeev tsis tuaj yeem hloov pauv. Yog li ntawd, muaj teeb meem ib puag ncig. Thiab cov khoom noj khoom haus qib, cov yas no tau pom zoo kom tsis txhob rov qab mus rau qhov cub.
Cov yam ntxwv tseem ceeb:
Cov yam ntxwv tshwj xeeb ntawm ntau qib ntawm HDPE yog kev sib xyaw kom zoo ntawm plaub qhov sib txawv: qhov ntom ntom, qhov hnyav molecular, molecular hnyav faib thiab cov khoom ntxiv. Cov catalysts sib txawv yog siv los tsim cov polymers customized nrog cov khoom tshwj xeeb. Kev sib xyaw ua ke ntawm cov kev hloov pauv no tsim cov qib HDPE rau ntau lub hom phiaj; ua tiav qhov sib npaug zoo tshaj plaws hauv kev ua haujlwm.
