Olugoye olw’amaanyi amangi olwa PTFE olw’ebbugumu eringi lukoleddwa mu fiberglass ezinywevu ennyo n’okusiiga kwa PTFE. Ebikulu ebikozesebwa bikwata ku kutambuza mu makolero (okufumba emmere, okukala engoye, entambula ya PCB), okukuuma okuweta (ebibikka ku bbugumu-sealer, engabo ezifuuwa), demolding n’okukola ekyuma ekikuba ebyuma ebibuguma (okubumba emipiira, PV lamination), okuziyiza amasannyalaze (motor slot liners, cable wraps), okuzimba membranes (obusolya bw’ekisaawe, obulamu bw’emyaka 30+), eddagala eriziyiza okukulukuta (okugaziya ebiyungo, ebisenge bya ttanka), eby’omu bbanga (emifaliso egy’ebbugumu), n’okukozesebwa okw’enjawulo (okusala layisi, okukuba ebitabo mu ngeri ya 3D).

Okukala ddaala ddene nnyo mu kukola emifaliso egy’ebbugumu erya waggulu erya PTFE. Ebikyamu ebitera okubaawo mulimu: okwatika (okukala amangu ennyo, okufuuka olususu ku ngulu), okusenguka kw’okusiiga (obutundutundu butambula okutuuka ku ngulu, okukwatagana okw’omunda okunafu), ebituli/ebizimba (empewo oba omukka ogusibiddwa), amabala amazungu n’okufuukuuka (okusenguka kw’ekirungo ekikola ku ttaka oba okuyungibwa okutali kujjuvu), okufuuka emmyufu/okukoola (okubuguma ennyo kw’ebirungo ebigattibwako), okusenguka (okunyigirizibwa kw’okukendeera okusukka okunywerera), ebikuta by’emicungwa (okutega obubi), warpage (uneven shrinkage), kungulu kukalu naye munda mubisi (okusala olususu kutega obunnyogovu), n’empenda enzito (coffee-ring effect). Ebigonjoola bizingiramu enkola z’okukala ezifugibwa, okuyingiza empewo entuufu, n’okusooka okulongoosa substrate.

PTFE emulsion impregnation of fiberglass fabric yeetaaga abayambi ab’enjawulo okutuuka ku uniform coating, okunywerera okunywevu, n’okubeera n’obulema. Ebikulu ebigattibwako mulimu: ebirungo ebifukirira (okukendeeza ku kunyigirizibwa kungulu, okulongoosa okuyingira), ebigonza (okufuga obuzito n’obuzito bw’okusiiga), ebitereeza pH (okutebenkeza emulsion ku pH 9-10), ebirungo ebiyunga silane (okutumbula okunywerera ku ndabirwamu), ebiyamba okukola firimu (PFA/FEP for sintering), ebijjuza ebikola (okuziyiza okwambala, okutambuza), okuggya effumba (okuziyiza pinholes), n’ebifuuwa amazzi (okukala mpola). Okulonda kisinziira ku substrate n’ebyetaago by’omulimu.

Olu

Obulongoofu bw’ebintu ebisookerwako gwe musingi gw’omutindo gw’olugoye olwa PTFE olw’ebbugumu eringi. Emulsion ya PTFE ey’obulongoofu obw’amaanyi (tewali ion za kyuma, tewali bisigalira bya molekyu bitono) ekakasa okuziyiza ebbugumu (tewali kufuuka kwa kyenvu okutuuka ku 260°C), obutanywerera kunywevu, n’amaanyi ga dielectric amangi. Ku fiberglass, E-glass etaliimu alkali (Na2O <0.8%) ekuuma amaanyi n’okuziyiza ku bbugumu erya waggulu; endabirwamu eya medium/high-alkali ereeta okuvunda. Okuggyawo ddala ebirungo ebizimba obunene mu kuluka kiziyiza carbonization ne delamination. Obulongoofu bukosa butereevu obulamu bw’obuweereza, okugoberera omutindo gw’emmere, n’okwesigamizibwa kw’amasannyalaze.

Okukaza obulungi olugoye lwa fiberglass nga tekunnabaawo kikulu nnyo mu kusiiga kwa PTFE okuddirira, okufukirira resin, oba okusiiga. Enkola ssatu enkulu: okuggya obunnyogovu ku 105-120°C (eddakiika 10-30 okusinziira ku buzito), okuggyamu obunnyogovu/okuyonja mu bbugumu ku 300-450°C (LOI <0.1%, okwewala>500°C), n’okusooka okubugumya ku 60-100°C nga tonnasiiga. Fuga obutafaanagana bwa bbugumu lya oven (±5°C), okukaka okuggya obunnyogovu, era okukuuma emifaliso egyalongooseddwa silane wansi wa 110°C. Teeka olugoye olukalu mu nsawo ezisibiddwa oba ebisenge ebikalu (<30°C, <40% RH).

Olugoye olwa PTFE olw’ebbugumu eringi (PTFE-coated fiberglass) kumpi terukola kemiko, naye ebintu ebimu bireeta okukulukuta mu mbeera ezenjawulo. Obulumbaganyi bwa PTFE obutereevu bubaawo n’ebyuma bya alkali ebisaanuuse (sodium, potassium), ebirungo eby’amaanyi ebifuuwa fluorinating (F2, ClF3) ku bbugumu erya waggulu, ne alkali ez’amaanyi ezisaanuuse waggulu wa 300°C. Okukulukuta okutali kwa butereevu kubaawo nga asidi wa hydrofluoric (HF), alkalis ayokya, oba asidi wa phosphoric ayokya biyingidde mu bulema bw’okusiiga ne bilumba ekifo ekirimu fiberglass. Ku mpeereza y’eddagala erisukkiridde, kozesa firimu ya PTFE ennongoofu nga temuli fiberglass.

Olugoye lwa PTFE olw’ebbugumu eringi (PTFE-coated fiberglass) lulina okuziyiza ebbugumu okulungi ennyo mu bbanga lyalwo erya bulijjo ery’okukola okuva ku -70°C okutuuka ku 260°C. Kisobola okugumira enzirukanya y’ebbugumu ey’amangu, okugeza, okuva mu firiiza ya -50°C okudda ku press eyokya eya 260°C. Ebika bya premium bituuka n’okuwona okunyogoga okw’amangu okuva ku 260°C okudda mu mazzi aga 10°C. Naye okukankanya ekintu okuva ku bbugumu erisukka 300°C (okumpi n’ekifo kya PTFE eky’okusaanuuka ekya 327°C) kijja kuleeta enjatika n’okukutuka amangu. Ekintu ekiyitibwa fiberglass substrate kiwa obutebenkevu mu bipimo; ekizigo kya PTFE kye kikoma.

PTFE olugoye olw’ebbugumu eringi lukozesebwa nnyo mu makolero g’eddagala olw’emirimu emikulu musanvu: flange gaskets ne pipe linings (zigumira acids/alkali ez’amaanyi), reactor ne tank linings (ziziyiza ebyuma okukulukuta, okwangu okuyonja), ensawo z’okusengejja omukka ogukulukuta (okutuuka ku 260°C), anti-corrosion expansion joints for ducts, anti-adhesion welding pads, olugoye olufulumya okubumba composite, n’okuzinga amasannyalaze/ebbugumu. Ebigezo bya FDA ne UL biriwo.

PTFE olugoye olw’ebbugumu eringi (PTFE-coated fiberglass) luwa ebirungi bina ebikulu nga anti-corrosion lining: eddagala obutakola (guziyiza aqua regia, alkalis ez’amaanyi, solvents), ebbugumu erigazi (-70°C okutuuka ku 260°C continuous, 350°C peak), dimensional stability (<0.5% elongation), n’obutakwata kungulu (easy okuyonja, kiziyiza okuzimba). Ekozesebwa mu payipu z’eddagala, eminara egy’okuggyamu ekibiriiti, ttanka z’okusiika, n’ebyuma ebikozesebwa mu mmere/eddagala. Ebigezo bya FDA biriwo.