Kedu ihe e ji mee ptfe tube?
Okwu mmeghe ngwaahịa
1,Ptfe tubebụ aha ọzọ maka polytetrafluoroethylene, mkpọbiri Bekee bụ PTFE, (nke a na-akpọkarị "Plastic King, Hara"), usoro kemịkalụ bụ -(CF2-CF2)n-. Dr. Roy J. Plunkett, onye kemist, chọpụtara Polytetrafluoroethylene na mberede na 1938 na DuPont.'s Jackson Laboratory na New Jersey, USA Mgbe ọ gbalịrị ime chlorofluorocarbon ọhụrụ N'ihe gbasara refrigerant compound. A na-akpọkarị ngwaahịa nke ihe a "mkpuchi na-anaghị arapara arapara"; ọ bụ ihe polymer sịntetik nke na-eji fluorine dochie atọm hydrogen niile na polyethylene. Ihe a na-eguzogide asịd, alkalis, na ihe mgbaze organic dị iche iche, ọ fọrọ nke nta ka ọ ghara ịgbaze na ihe mgbaze niile. N'otu oge ahụ, PTFE nwere njirimara nke iguzogide okpomọkụ dị elu, ọnụọgụ esemokwu ya dịkwa obere, yabụ enwere ike iji ya dị ka ụzọ isi mee ka mmanụ dị mma, ọ ghọwokwa mkpuchi zuru oke maka oyi akwa dị n'ime nke ite na-anaghị arapara arapara na ọkpọkọ mmiri
A na-ejikarị ihe ndị a eme ihe na ngwaahịa ndị a:
PTFE, FEP, PFA, ETFE, AF, NXT, FFR.
PTFE: Enwere ike iji mkpuchi PTFE (polytetrafluoroethylene) na-anaghị arapara agbatị na 260 mgbe niile°C, yana oke okpomọkụ ojiji kachasị nke 290-300°C, oke mbelata esemokwu, ezigbo nguzogide iyi na ezigbo nkwụsi ike kemịkalụ.
FEP: FEP (ethylene propylene copolymer fluorinated) mkpuchi na-anaghị arapara agbaze ma na-agbapụta iji mepụta ihe nkiri na-anaghị agbapu mmiri n'oge a na-eme achịcha. O nwere ezigbo nkwụsi ike kemịkalụ na njirimara mara mma nke na-anaghị arapara. Okpomọkụ kachasị eji bụ 200℃.
PFA: Ihe mkpuchi PFA (perfluoroalkyl compound) nke na-anaghị arapara arapara na-agbaze ma na-asọba n'oge a na-eme achịcha iji mepụta ihe nkiri na-anaghị agbapụta oghere dịka FEP. Uru nke PFA bụ na o nwere okpomọkụ ojiji dị elu karịa 260°C, ike siri ike na ike siri ike, ọ dịkwa mma karịsịa maka ojiji na ngwa mgbochi ịrapara na iguzogide kemịkal n'okpuru ọnọdụ okpomọkụ dị elu.
PTFE (Polytetrafluoroethene) bụ ihe e ji emepụta polima nke na-eji fluorine dochie atọm hydrogen niile dị na polyethylene. Ihe a na-eguzogide asịd, alkalis, na ihe mgbaze organic dị iche iche, ọ fọrọ nke nta ka ọ ghara ịgbaze na ihe mgbaze niile. N'otu oge ahụ, tube ptfe nwere njirimara nke iguzogide okpomọkụ dị elu, ọnụọgụ esemokwu ya dịkwa obere, yabụ enwere ike iji ya maka mmanụ, ọ ghọwokwa mkpuchi zuru oke maka wok na paịpụ mmiri dị mfe ihicha. Enwere ike iji ya maka iguzogide nchara pipeline, iguzogide okpomọkụ dị elu na nke dị ala, na iguzogide nchara. A na-eji ya na gburugburu ebe siri ike dịka mmanụ ọkụ, injinia, ngwa eletrọniki, ngwa eletriki, na ụgbọelu.
Atụmatụ ngwaahịa
1, Oke na obere iguzogide okpomọkụ: obere mmetụta na okpomọkụ, oke okpomọkụ sara mbara, okpomọkụ dị mkpa -65 ~ 260℃.
2, Enweghị ike ịrapara: Ihe fọrọ nke nta ka ọ bụrụ ihe niile anaghị ejikọta na fim PTFE. Ihe nkiri dị gịrịgịrị na-egosikwa arụmọrụ dị mma nke na-anaghị akpata nsogbu. 2. Nguzogide okpomọkụ: Ihe nkiri mkpuchi PTFE nwere ezigbo iguzogide okpomọkụ na obere iguzogide okpomọkụ. Ọ nwere ike iguzogide okpomọkụ dị elu ruo 300°C n'ime obere oge, a pụkwara iji ya mee ihe n'ozuzu ya n'etiti 240°C na 260°C. Ọ nwere nnukwu nkwụsi ike okpomọkụ. Ọ nwere ike ịrụ ọrụ na okpomọkụ oyi na-enweghị mmetọ ma ọ naghị agbaze na okpomọkụ dị elu.
3,Njirimara na-amị amị: Ihe mkpuchi PTFE nwere oke esemokwu dị elu. Oke esemokwu na-agbanwe mgbe ibu ahụ na-amị amị, mana uru ya dị naanị n'etiti 0.05-0.15.
4, Mgbochi Mmiri: Elu ihe mkpuchi PTFE anaghị arapara na mmiri na mmanụ, ọ dịghịkwa mfe ịrapara na ngwọta ahụ n'oge ọrụ mmepụta. Ọ bụrụ na obere unyi dị, hichaa ya. Oge dị mkpirikpi na-efu, na-azọpụta oge ọrụ ma na-eme ka arụmọrụ ọrụ ka mma.
5, Nguzogide Yiri: Ọ nwere ezigbo nguzogide iyi n'okpuru ibu dị elu. N'okpuru ibu ụfọdụ, ọ nwere uru abụọ nke iguzogide iyi na enweghị nkwụsịtụ.
6, Nguzogide Njehie: PTFE anaghị agbaze site na kemịkalụ, ọ nwekwara ike iguzogide asịd siri ike niile (gụnyere aqua regia) na oxidants siri ike ma e wezụga ọla alkali a gbazere agbaze, mgbasa ozi fluorinated na sodium hydroxide karịa 300°C. Ọrụ nke ibelata ihe na-akpata ihe mgbaze dị iche iche nwere ike ichebe akụkụ site na ụdị nchara kemịkalụ ọ bụla.
ihe onwunwe kemịkalụ
1, Mkpuchi: Gburugburu na ugboro ole ọ na-adịghị emetụta ya, ike olu nwere ike iru 1018 ohm·cm, mfu dielectric dị obere, voltaji mmebi ahụ dịkwa elu.
2, Oke na obere okpomọkụ na-eguzogide: obere mmetụta na okpomọkụ, oke okpomọkụ sara mbara, okpomọkụ dị mkpa -190 ~ 260℃.
3, Na-eme ka mmanụ dị n'ime onwe ya: O nwere obere ọnụọgụ nke esemokwu n'etiti plastik ma bụrụ ihe kacha mma maka mmanụ na-enweghị mmanụ.
4, Elu anaghị arapara: ihe siri ike a maara nke ọma enweghị ike ịrapara n'elu, ọ bụ ihe siri ike nke nwere ike kachasị nta n'elu.
5, Nguzogide ihu igwe, iguzogide radieshon na obere permeability: ikpughe ogologo oge na ikuku, elu na arụmọrụ anaghị agbanwe agbanwe.
6, Enweghị ike ịgba ọkụ: Ndekọ oke ikuku oxygen dị n'okpuru 90.
7, A na-ejikarị PTFE eme ihe n'ọtụtụ ụlọ ọrụ chọrọ oke okpomọkụ na oke viscosity. Enwere ike iji super acid-fluoroantimonic acid kachasị ike maka nchekwa.
Mpaghara ngwa ngwaahịa
Enwere ike ịmepụta polytetrafluoroethylene site n'ịkwanye ma ọ bụ ịpụpụ ya; enwere ike ime ya ka ọ bụrụ ihe nkiri wee bee ya ka ọ bụrụ teepu PTFE e tinyere n'elu shaft mgbe ejiri ya na waya okpomọkụ dị elu. A na-eji ya emepụta waya ugboro ugboro ma mee ya ozugbo ka ọ bụrụ mgbasa mmiri. Enwere ike iji ya mee ihe mkpuchi, itinye ihe n'ime mmiri ma ọ bụ ime eriri.
A na-ejikarị Polytetrafluoroethylene eme ihe n'ọtụtụ ụlọ ọrụ dịka ike nuklia, nchekwa mba, ụgbọelu, ngwa eletrọnịkị, eletriki, kemịkalụ, igwe, ngwa ọrụ, mita, ihe owuwu, ákwà, ọgwụgwọ elu ígwè, ọgwụ, nlekọta ahụike, nri, igwe na ịgbaze ihe, wdg. Ihe ndị na-emebi emebi, ihe mkpuchi ihe, mkpuchi ihe mgbochi arapara, wdg. na-eme ka ọ bụrụ ngwaahịa a na-apụghị ịgbanwe agbanwe.
PTFE tubnwere ihe onwunwe zuru oke pụrụ iche, iguzogide okpomọkụ dị elu, iguzogide nchara, anaghị arapara, na-eme ka mmanụ onwe ya dị mma, ihe onwunwe dielectric dị mma, yana obere ihe mgbochi esemokwu. A na-eji ya dị ka plastik injinia, enwere ike ime ya ka ọ bụrụ ọkpọkọ PTFE, mkpanaka, eriri, efere, ihe nkiri, wdg. A na-ejikarị ya eme ihe na pipelines na-eguzogide nchara, akpa, ọkpọkọ, valvụ, radar, ngwa nkwukọrịta ugboro ugboro, ngwa redio, radomes, wdg. yana ihe achọrọ arụmọrụ dị elu. Na-agbakwunye ihe ndochi ọ bụla nke nwere ike iguzogide okpomọkụ sintering nke polytetrafluoroethylene, enwere ike imeziwanye ihe onwunwe ya nke ukwuu. N'otu oge ahụ, a na-ejigide ihe onwunwe ndị ọzọ dị mma nke PTFE. Ụdị ndị e jupụtara gụnyere eriri iko, metal, metal oxide, graphite, molybdenum disulfide, carbon fiber, polyimide, EKONOL, wdg. Enwere ike ịbawanye nguzogide iyi na oke uru PV site na ugboro 1000.
Nchọgharị metụtara ptfe hose:
Oge ozi: Jenụwarị-07-2021