Imitungo myiza ya PTF iha urwego runini rwa porogaramu, kandi akenshi rukoreshwa nkinfuti idafite inkoni yo guteka. PTFA nziza yo guhanganamerera guhuzwa nibikoresho bitandukanye binyuze mumagambo ya emulsion hamwe nibicuruzwa byinganda bifite imitungo yo mu nganda
PTFE ni iki?
PolytetrafüoRylene yavumbuwe mu 1938. Byavumbuwe mbere na chemiste y'Abanyamerika J. Pluntket (1910-1994) igihe yageragezaga gukora karubone nshya na Fluorine Firigo yo muri Fluond. Abantu icyo gihe ntibari gutekereza kuri iki gicuruzwa gisanzwe. Imyanya idasanzwe izagira ingaruka kuri buri kintu cyisi.
Mu 1941, Dupoont yabonye ipatanti iki gicuruzwa kandi yiyandikisha ikirango munsi yizina 'teflon ' mu 1944.
Muri iki gihe, PolytetrafürouoRylene yakoreshejwe cyane mu mirimo myinshi yo kubyara no mu buzima. Mu nganda zikarishye, PTFE ZFeware ikoreshwa cyane; Mu myambaro yimyenda, imyenda yo hejuru-ibimenyetso bikonje bivuye mubirango nka helikon na carintia bose bakoresha ptfe nkikibanza cyo gutwikira cyangwa hanze. , kugirango tugere kubushobozi bwo guhangana nubukonje bukabije bwa -30 ° C; Mu murima wa gisirikare, ibikoresho bya PTFE hamwe no gutakaza bike, imitungo myiza, ihungabana ryiza, kandi nta shitingi rikoreshwa cyane muri radiyo ndende ya Radia. Mu murima w'ubuvuzi, ibikoresho bya PTF nabyo bikoreshwa cyane mubice byumubiri.
PTFE ihagaze iki?
PTFE ihagaze kuri polytetrafrouorouoRylene, ijambo rya shimi rya polymer (c2f4) n.
Ibi bikoresho mubisanzwe bivuga kuri ftfe ya franthetic fluoropolymer. Ibiranga nyamukuru bya polytetrafrouoIfotohene ni nkibi bikurikira:
Ubushyuhe ntarengwa bwo gukora (° F / ° C): 500/260
Imbaraga za Tensile mukiruhuko (PSI): 4000
Imirire ihoraho (KV / MIL): 3.7
Igipimo: 2.16
Kurandura mukiruhuko: 350%
Shore D Hardness: 54
Byakoreshejwe PTFE nyinshi polytetraftlerorouethlene Fluoropolymermer ifite ibiranga byavuzwe haruguru bimaze kuba ibiranga bitabarika, ibirango nyamukuru ni ibi bikurikira:
Teflon®: Chemours
Fluon®: AGC LTD
Dyneon®: 3m
Polyflon: Daikin Inganda CO., LTD.
Algoflon: Solvay Ltd.
Imiterere ya ptfe
PolytetrafüoRylene ni umurongo wa polymer igizwe na karubone (c) na fluorine (f) atome, hamwe na atome, hamwe na formulaire ya chimique (c2f4) n, aho n numubare wimibare yabantu.
Imiterere ya PTF irashobora kugaragazwa nka: -cf2-cf2-cf2-cf2-
Urunigi rurerure rwa molekile rwa PTFE igizwe na atome ya karubone, buri kimwe kijyanye na atome ebyiri za fluorine.
Gutotozi bya fluorine hafi gupfuka hejuru ya atome ya karubone yinyungu za polymer. Atome ya karubone ikora urunigi nyamukuru rwurugani rwa polymer. Atome ya fluorine ikora imiterere nkingabo izengurutse atome ya karubone, irinda neza atome yimbere.
Iyi gahunda idasanzwe ya atome itanga ptfe imitungo idasanzwe. Iyi miterere ya molecula igira uruhare muri PTFE itagereranywa kumubiri no mumiti.
Ibikoresho bya Teflon ni ibihe?
Teflon ni fluoropolymer ya thermoplalymer, na teflon comonym ni ptfe (polytetrafluoroaethylene).
Teflon ni ibintu bizwi bitewe n'amakimbirane make, kurwanya ubushyuhe bwinshi, no kurwanya imiti.
Ni teflon ptfe
Birumvikana, Teflon ni ibikoresho bya polymer bifite agaciro kuva tetrafluoroaethylene kandi ni ubwoko bwibintu bikonjesha. Izina ryamashusho ryayo ni polytetrafrouorouoRylene (PTFE).
Imiterere ya chimical ya teflon irihariye. Imiterere ya molekari nuko F (atome ya fluorine) isimbuza H (atome ya hydrogen) kumurongo wa c. Muri icyo gihe, kubera ko radiyo ya atome ya fleorine nini kuruta radiyo ya atome ya karubone, bityo igategurwa mu ndege ya karubone, bityo izategurwa mu ndege ya karubone, bityo izategurwa mu ndege ya karubone, bityo izategurwa mu ndege ya karubone, bityo izategurwa mu ndege ya karubone, bityo izategurwa mu ndege ya karubone, bityo izategurwa mu ndege ya karubone, bityo izategurwa mu ndege ya karubone, bityo irashobora gutungirwa mu ndege ya karubone, bityo izategurwa mu ndege ya karubone, bityo izategurwa mu ndege
Hamwe na batorine ikomeye ya atom bariyeri, imiterere ya polymer ya Teflon irahagaze neza ugereranije nibindi bikoresho.
Teflon
PTFE ni polymer polymeyed kuva muri Tetrafluoroiroiroyilene. Numucyo cyangwa ibishashara bisa na pe. Ubucucike bwarwo ni 2.2G / CM3 hamwe nigipimo cyayo kijyanye namazi kiri munsi ya 0.01%.
Imiterere yimiti ya PTFE Polymer isa niya pe, usibye ko atome zose za hydrogen muri polyethylene zisimburwa na atome ya fluorine. Kubera ingufu ndende kandi imikorere ihamye ya CF, ifite ubukana buhebuje bw'imiti kandi irashobora kwihanganira acide ikomeye (harimo na aqua regia, usibye ibyuma bya alkali, hamwe na sodiim itangazamakuru hejuru ya 300 ° C. Nka ngaruka zibintu bikomeye, bigabanya abakozi hamwe nibibi binyuranye.
Fo atom molecule ya ptfe ni kimwe, kandi ibintu byombi muri CF bihujwe. Nta electron yubuntu muri molekile, ikora molekile yose itagereranywa. Kubwibyo, ifite imitungo myiza yimirire, kandi inkingi zayo ntabwo ziterwa ningaruka zibidukikije ninshuro.
Teflon Ibintu byumubiri
Ubunini bwarwo burenze 1017, igihombo cyacyo ni gito, imyanda yayo ni ndende, kandi irashobora kurwanya arc nziza, kandi irashobora gukora mu mashanyarazi ya 250 ° 80 ° C. Kuberako nta mbuto za hydrogen muri ptfe ihari, imiterere ni symmetrical, nuko kuruhande rwarwo ari hejuru cyane (muri rusange inyamanswa ni 54%), zituma PTF yo kurwanya ptfe cyane. Ubushyuhe bwayo butangaje ni 324c, ubushyuhe bwayo ni 415 ° C, nubushyuhe ntarengwa ni 250 ° C. Ivumburwa ubushyuhe ni -190 ° C, hamwe nubushyuhe bwogoshe ubushyuhe (munsi ya 0.46MPA) ni 120c.
Ibikoresho bya teflon bifite imiterere nziza. Imbaraga za tensile ni 21 ~ 28MMPA, kumarana imbaraga ni 11 ~ 14MPA, Elongtion coeffict ya 250%, hamwe na Nylon na Nyirisi Coefficient yo guterana amagambo akonje ni nto.
