Video: Dab tsi yog polymer unit ntawm paj rwb?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
Paj rwb , zoo li rayon thiab ntoo pulp fibers, yog ua los ntawm cellulose. Cellulose yog macromolecule ua los ntawm anhydroglucose chav tsev txuas los ntawm 1,4 oxygen txuas nrog polymer rov hais dua chav tsev beanhydro-beta-cellulose.
Ib yam li ntawd, dab tsi yog monomer ntawm paj rwb?
Cellulose yog ntuj monomer los ntawm qhov uas ntuj tsim paj rwb yog ua.
Tsis tas li ntawd, dab tsi yog hu ua natural polymer thiab yog vim li cas? Cov lwg me me uas tau siv los ua ke a polymer yog hu ua raws li monomer. Cellulose yog lwm yam natural polymer uas yog lub ntsiab yam ntxwv ntawm cov nroj tsuag. Feem ntau ntawm cov natural polymers yog tsim los ntawm condensation polymers thiab qhov tsim los ntawm themonomers, dej tau txais los ntawm cov khoom lag luam.
Ib yam li ntawd, koj yuav nug, lub zog ntawm paj rwb yog dab tsi?
Tensile Lub zog : Paj rwb yog qhov nruab nrab muaj zog fiber. Nws muaj zog tenacity ntawm 3-5 gm / den. Cov lub zog muaj kev cuam tshuam zoo heev los ntawm kev ya raws; cov ntub dej lub zog ntawm paj rwb yog 20%, uas yog siab dua qhuav lub zog . Elongation tshwm sim: Paj rwb tsis ntxhov siab yooj yim.
Cov paj rwb Fiber zoo li cas?
Paj rwb fibers yog ntuj hollow fibers ;lawv yog mos, txias, paub raws li ua pa fibers thiab absorbent. Paj rwb fibers tuaj yeem tuav dej 24-27 npaug ntawm lawv tus kheej qhov hnyav. Lawv yog muaj zog, dyeabsorbent thiab tau sawv tiv thaiv kev hnav thiab hightemperature.
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