A na-akpọ PTFE "eze plastik".Roy Planck, nna fluororesin, malitere ịmụ ihe ndị Freon nọchiri anya na DuPont na United States na 1936. Ha chịkọtara akụkụ nke tetrafluoroethylene ma chekwaa ya na karama ígwè, na-akwadebe maka nnwale ọzọ n'echi ya, Ma mgbe nrụgide na-ebelata valvụ. nke cylinder e meghere n'echi ya, ọ dịghị oke gas.Ha chere na ọ na-agbapụta, ma mgbe ha na-atụle cylinder ahụ, ha chọpụtara na cylinder ahụ akwụsịbeghị ibu.Ha meghere karama ígwè ahụ wee hụ nnukwu ntụ ntụ ọcha, nke bụ polytetrafluoroethylene (teflon).
A na-akpọ PTFE "eze plastik".Roy Planck, nna fluororesin, malitere ịmụ ihe ndị Freon nọchiri anya na DuPont na United States na 1936. Ha chịkọtara akụkụ nke tetrafluoroethylene ma chekwaa ya na karama ígwè, na-akwadebe maka nnwale ọzọ n'echi ya, Ma mgbe nrụgide na-ebelata valvụ. nke cylinder e meghere n'echi ya, ọ dịghị oke gas.Ha chere na ọ na-agbapụta, ma mgbe ha na-atụle cylinder ahụ, ha chọpụtara na cylinder ahụ akwụsịbeghị ibu.Ha meghere karama ígwè ahụ wee hụ nnukwu ntụ ntụ ọcha, nke bụ polytetrafluoroethylene (teflon).
Njirimara na akụrụngwa:
Njirimara igwe nke PTFE dị nro.PTFE nwere ọtụtụ njirimara arụmọrụ dị mma:
- Nguzogide okpomọkụ dị elu:ogologo oge ojiji okpomọkụ nke 200 ~ 260 degrees;
- Nguzogide okpomọkụ dị ala:ka dị nro na -100 degrees;
- Nguzogide corrosion:iguzogide aqua regia na ihe mgbaze organic niile;
- Nguzogide ihu igwe:ezigbo ndụ ịka nká na rọba;
- mmanu mmanu di elu:ọnụọgụ kacha nta nke esemokwu (0.04) na plastik;
- Enweghị viscous:opekempe esemokwu elu n'ime ihe siri ike n'ejighị ihe ọ bụla;
- Na-adịghị egbu egbu:na physiological inertia na magburu onwe eletriki Njirimara, ọ bụ ezigbo C-Class mkpuchi ihe, akwụkwọ akụkọ oké oyi akwa nwere ike igbochi elu voltaji nke 1500V.Ọ dị nro karịa ice.
Ọnụ ọgụgụ esemokwu nke PTFE dị obere, naanị 1/5 nke polyethylene, nke bụ akụkụ dị mkpa nke elu perfluorocarbon.Ma n'ihi na ike inter molecular nke eriri fluorine-carbon dị oke ala, PTFE adịghị viscous.PTFE na-ekwusi ike magburu onwe n'ibu Njirimara na a dịgasị iche iche okpomọkụ nso nke -196 ka 260 Celsius C. Otu n'ime àgwà perfluorocarbon polymers bụ na ha na-adịghị kenkuwa na ala okpomọkụ.PTFE nwere nnukwu njupụta nke 2.14-2.20g / cm3, na ihe fọrọ nke nta ka ọ bụrụ na ọ dịghị mmịnye mmiri, na nha nha nha nha nhata mmiri na-erughị 0.01%.PTFE bụ ụdị polymer dị nro na adịghị ike.Ike ndọdarịta ọnụ n'etiti macromolecules dị ntakịrị, ma isi ike, isi ike na ike dị ntakịrị.Ọ ga-emebi n'okpuru nrụgide ogologo oge.
Nyocha teknụzụ
polymerization nkwusioru:na polymerization kettle, mmiri na-eji dị ka a na-ajụ, ammonium persulfate eji dị ka onye mmalite, na itughari hydrochloric acid eji dị ka activator, tetrafluoroethylene na-polymerized na a nrụgide nke 0.5-2 MPa na 40-45 ℃ iji nweta ọcha ahụ, na ka. nweta polytetrafluoroethylene ntụ ntụ nwere nha urughuru dị iche iche mgbe ịsachara, egweri, na ihicha.
polymerization mgbasa:A na-agbakwunye ntakịrị ihe nkesa (ammonium perfluorooctanoate) na stabilizer (fluorocarbon compound) iji malite polymerization na redox catalyst.A na-ekewa Polymerization na nrụgide dị elu na obere nrụgide.The elu nsogbu bụ 2 MPa na 25 ℃, na ala mgbali bụ 0.6-0.7 MPa na 0-38 ℃.A na-emepụta ihe ngwọta nke polytetrafluoroethylene polymerization site na mgbasa ozi mgbasa ozi, a na-enwetakwa resin mgbasa site na coagulation, ihicha, na nyocha. Site na polymerization mgbasa, n'okpuru ọrụ nke mmiri na-enweghị ion na enyemaka dị iche iche, emulsion na-acha ọcha na-emepụta.A na-ekpochapụ emulsion ma tinye uche site na kettle ịta ahụhụ iji mepụta mmiri mmiri na-etinye uche, ya bụ, emulsion gbasasịrị.
Resin mgbasa ozi nwere arụmọrụ nhazi ka mma yana arụmọrụ ngwaahịa.Polytetrafluoroethylene na-agbaji ma nwee mmiri mmiri na-adịghị mma.Ya urughuru size na urughuru udi nwere mmetụta dị mkpa na gbazee fluidity, ya nhazi Njirimara na ngwaahịa Njirimara.Ihe dị iche na àgwà nke kwụsịtụrụ resins na chụgara resins bụ n'ihi na ha urughuru size, urughuru size nkesa, na urughuru morphology.Nke mbụ nwere nha nha nha milimita, ebe nke ikpeazụ nwere nha submicron (250-350nm) . Enwere ike ịkpụzi resins kwụsiri ike ma hazie ya, mana enweghị ike ịpụta ya n'ụdị tapawa, ebe enwere ike iji resins gbasasịrị agbasa maka mado extrusion.The molekụla arọ na crystallinity nke PTFE dispersing resins bụ n'ozuzu elu karịa nke kwụsịtụrụ resins, na a crystallinity ruo 96-98%, na ekwe ike ọgwụgwụ ndụ bụ 2300 ugboro ogologo karịa nke kwụsịtụrụ resins.
The urughuru size nke chụsasịrị resin emepụtara emulsion polymerization bụ obere, urughuru size nkesa bụ ezi uche, na urughuru morphology bụ controllable, Ya mere na ezi nhazi arụmọrụ na ngwaahịa arụmọrụ.
Ka ọ dị ugbu a, a na-emepụta ihe dị ka ụzọ abụọ n'ụzọ atọ nke resin PTFE site na usoro nkwusioru na otu ụzọ n'ụzọ atọ site na usoro mgbasa ozi.
Na 2019, enwere ngụkọta nke ụlọ ọrụ PTFE ụlọ iri na abụọ nwere ikike nke ihe dị ka tọn 140,000 / afọ, na-aza ihe karịrị 40% nke ikike mmepụta ụwa.Otú ọ dị, e kwesịrị ịrịba ama na China PTFE mmepụta ikike bụ tumadi injection ịkpụzi ọkwa n'etiti na ala-ọgwụgwụ ngwaahịa.
Ike mmepụta PTFE nke China gbadoro anya.Ụlọ ọrụ isii kachasị elu na ụlọ ọrụ ahụ na-aza ihe dịka 83% nke ikike mmepụta ihe niile.Onye isi ụlọ ọrụ ahụ, Dongyue Group, na-ewe ihe fọrọ nke nta ka ọ bụrụ otu ụzọ n'ụzọ atọ nke oke ahịa.
Na 2019, ọ na-eme atụmatụ na anụ ụlọ PTFE mmepụta bụ banyere 90,000 tọn, tumadi na injection ịkpụzi ọkwa n'etiti na ala-ọgwụgwụ ngwaahịa, na elu-ọgwụgwụ PTFE resin localization ọnụego bụ nnọọ ala, nke na-adabere kpamkpam na imports.China bụ. onye na-ebupụ net nke PTFE.Na 2004, olu mbupụ PTFE nke China karịrị oke mbubata, ikike ya gbasakwara nke ukwuu site na 2010 ruo 2012, na oke mbupụ ya na-abawanye kwa afọ.Na 2010, olu mbupụ PTFE nke China gafere tọn 20,000 maka oge mbụ ma na-anọgide na gburugburu 20,000 ton / afọ ruo ugbu a. The mbubata olu nọgidere na-enwe ike nke 5000-6000 ton, nke 70-80% nke PTFE ebubata dị elu. -Arụmọrụ emezigharịrị ngwaahịa iji gboo mkpa nke ụlọ ọrụ mgbada maka ngwaahịa PTFE dị elu.Ka ọ dị ugbu a, ụlọ ọrụ si mba ọzọ na-ebute PTFE dị elu nke ChinaDaikinna Japan,DuPontna United States.
Ngwa isi nke 5G
Site na mmepe na-aga n'ihu nke teknụzụ nkwurịta okwu 5G, ọchịchọ nke kwekọrọ na ugboro ole dị elu na ihe dielectric dị ala na-abawanye.Fluoropolymers nwere ezigbo dielectric dị ala na ihe na-efunahụ dị ala n'okpuru ọnọdụ ugboro ugboro.Ha nwere ike ịnye frequencies dị oke elu yana ịrụ ọrụ ọsọ ọsọ maka ebe data, ụlọ elu mgbasa ozi, na ngwa eletrọnịkị nkeonwe.Ya mere, site na mmụba nke 5G, ahịa ahịa maka fluoropolymers na-arụ ọrụ dị elu na-abawanye.
Ngwa ndị bụ isi bụ eriri nkwurịta okwu 5G dị elu, semiconductor, PCBs na akụrụngwa antenna.
Igwe ọkụ dị elu na nke dị elu
Teflon resin na-eme ka arụmọrụ ọkụ eletrik nke ihe mkpuchi eriri USB na jaket na-enye ha nchekwa ọkụ na-enweghị atụ.Njirimara ndị a dị oke mkpa maka sistemu wiring (dị ka eriri igwe dị elu) maka netwọk mpaghara (LAN), ebe data, yana ngwa nkwukọrịta ndị ọzọ na-arụ ọrụ dị elu.Ya mere, a ga-eji fluoropolymers na ahịrị nnyefe dị elu nke nwere ọtụtụ ọrụ, nnukwu nnyefe data, na nkọwa dị elu.
Semiconductor mmepụta
5G na-emetụta mmepe nke ụlọ ọrụ semiconductor na-agbanwe mkpa nke ụlọ ọrụ ahụ.PTFE polymers na-arụkwa ọrụ dị mkpa na usoro mmepụta semiconductor.
PCB na akụrụngwa antenna
N'oge 5G, bọọdụ sekit (PCBs) ga-adabere nke ukwuu na ihe fluoropolymer na-arụ ọrụ dị elu, nke nwere ike melite ogo nnyefe 5G.A na-eji PTFE maka prepreg components na PCBs na sistemu antenna iji nweta njikọ dị elu.
Oge nzipu: Feb-26-2019