Kiki ekikwatagana mu bungi wakati w’omuwendo gwa gel fraction index ya silicone pressure-sensitive adhesives n’amaanyi g’okukwatagana ga adhesive layer?

I. Enkola z’okunnyonnyola n’okupima ebiraga

1. Ekitundu kya ggelu:

   Ekitundu kya gel kitegeeza ebitundu by’obuzito ku buli kikumi eby’omukutu ogusalasala mu kisiiga ekikwata ku puleesa ya silikoni ekisiigiddwa ku Teflon ey’ebbugumu eringi etasaanuuka mu bizimbulukusa ebirungi (nga toluene). Enkola y’okupima erimu okuzinga firimu ennongoofu eyeesiiga mu katimba akasengejja, okugiggyamu mu Soxhlet extractor okumala essaawa 24, n’oluvannyuma okukala ebisigadde ebitasaanuuka okutuuka ku buzito obutakyukakyuka nga tonnaba kubalirira.

2. Amaanyi agakwatagana:

   Mu Teflon tape, amaanyi g’okukwatagana gamanyiddwa olw’amaanyi g’okukwata ag’ebbugumu eringi (ebbugumu ly’okulemererwa kw’okunyweza okusala oba obudde bw’okukwata okusala). Okugezesebwa kutera kukolebwa ku 180 °C wansi w’omugugu gwa kkiro emu, nga kuwandiika obudde okutuusa ng’oluwuzi olusiiga luseerera oba okulemererwa. Omuwendo guno gulaga butereevu obusobozi bw’oluwuzi olusiiga okuziyiza okukulukuta n’okukutuka.

II. Okukwatagana kw’omuwendo Wakati wa Gel Fraction n’amaanyi agakwatagana

1. Wansi w’ekifo ekikulu (ekitundu kya gel < 60%):

   Enkola eno tennaba kukola mutimbagano ogukulukuta; oluwuzi olusiiga lusigala mu mbeera ya viscous-flow, nga amaanyi g’okukwata gasemberera ziro era nga tewali maanyi ga kukwatagana ga nkola.

2. Ensengekera y’enkola (60%–85%):

   Okusukka ensonga enkulu, density y’olujegere lwa laasitiki ekola yeeyongera nnyo n’ekitundu kya jjeeri, era amaanyi g’okukwatagana gakula mu ngeri ey’ekigero oba nga gagoberera etteeka ly’amaanyi amangi. Okwongera ku kitundu kya ggelu okuva ku bitundu 60% okutuuka ku bitundu 70% kiyinza okulinnyisa obudde bw’okukwata ebbugumu eringi okuva ku ddakiika okutuuka ku ssaawa; okuva ku bitundu 70% okutuuka ku bitundu 80%, amaanyi g’okukwata gasobola okweyongera emirundi emirala 3 ku 10. Enkola y’okulemererwa ekyuka mpolampola okuva ku kulemererwa okw’okukwatagana okunene okudda ku kulemererwa okutabuliddwa.

3. Obuwanvu bw’okusalasala (> 85%):

   Okweyongera kw’amaanyi g’okukwatagana kukendeera. Okulinnyisa ekitundu kya gel okuva ku 85% okutuuka ku 95% kyongera ku budde bw’okukwata ebitundu 20%–50% byokka, naye tack (initial adhesion) ekendeera nnyo olw’okuziyiza okutambula kw’olujegere lwa molekyu. Ekitundu kya gel bwe kisukka ebitundu 95%, oluwuzi olusiiga lusemberera embeera ya elastomer ennongoofu, era eby’obugagga by’okusiiga ebikwata puleesa mu bukulu bibula.

III. Enkola ya Semi-Empirical Model ne Data eya bulijjo

Nga bwe kyafunzibwa abakola emifaliso egy’ebbugumu eringi eya Jiangsu Teflon, enkolagana ey’okugezesa wakati w’obudde bw’okukwata okusala (t_shear) n’ekitundu kya gel (g) eyinza okulagibwa nga:

lg(t_shear) = A + B · g (nga B eri nga 0.1–0.2), ekiraga okwesigamizibwa okw’ekigerageranyo. Emiwendo gya A ne B gisinziira ku mugerageranyo gwa MQ resin, obuwanvu bw’oluwuzi olusiiga, n’ebbugumu ly’okugezesa.

Ebiwandiiko ebikwatagana ebya bulijjo (180 °C static shear, normalized okutuuka ku budde bw’okukwata 1 ku 65% gel fraction):

| Ekitundu kya Gel | Obudde bw'okukwata obw'oluganda | Omutindo gw'okulemererwa |

|---------------|

| Ebitundu 55% | < 0.1 | Okulemererwa okukwatagana 100% |

| Ebitundu 65% | 1 | ~80% okulemererwa okukwatagana |

| Ebitundu 75% | 8–15 | Okulemererwa okutabuddwamu |

| Ebitundu 85% | 50–100 | Ebisigadde ebitonotono |

| Ebitundu 92% | 150–200 (okumpi n’okujjula) | Okulemererwa kw'ensengekera ennongoofu |

 

Kya lwatu nti mu 60%–90% range, buli 5 ku buli 100-point okweyongera mu gel fraction kuyinza okuvaako emirundi mingi okweyongera mu high-temperature cohesive strength.

IV. Enkola z’okufuga mu kukola obutambi bwa Teflon

1. Ekigendererwa gel ekitundu range:

   Ku butambi obuzitowa obuziyiza ebbugumu obw’enjawulo okuva mu bakola emifaliso egy’ebbugumu eringi egya Jiangsu Teflon, ekitundu kya gel ekisemba kiri 75%–85%, nga kitebenkeza tack n’okukwatagana. Ku misipi egy’ebbugumu eringi eriziyiza okukwata (nga giyinza okutikkibwa okumala ebbanga eddene ku 200–260 °C), ekitundu kya jjeeri kirina okutuuka ku 85%–93% okuziyiza ebisigadde eby’okusiiga ebiva ku kwawukana okukwatagana okw’oluwuzi olusiiga.

2. Ebyetaago by’okukwatagana n’enkolagana:

   PTFE kungulu ya Teflon high-temperature tape erina amasoboza ag’okungulu amatono ennyo; n’olwekyo, amaanyi g’okukwatagana ag’oluwuzi olusiiga galina okuba waggulu okusinga amaanyi g’okunyweza ag’okukwatagana; bwe kitaba ekyo, okulemererwa okw’okukwatagana kujja kubaawo wansi w’okunyigirizibwa. Singa ekitundu kya gel kisukka ebitundu 93%, oluwuzi olusiiga lukaluba, ne kikendeeza ku kufukirira n’okukwatagana ne PTFE substrate, ekiyinza okuvaako okusitula ku mbiriizi. Mu kukola, kyetaagisa okufuga obulungi ebbugumu ly’okusalasala, obudde, n’obuzito bw’ekirungo ekiziyiza okusiba ekitundu kya jjeeri mu bbanga erigendererwa, okutuuka ku nkyukakyuka eyesigika okuva ku kulemererwa okukwatagana okutuuka ku kulemererwa kw’ensengekera.

Amawulire ago waggulu gaweereddwa... Jiangsu Okai Ebintu Ebipya Tekinologiya Co., Ltd.

Bw’oba oyagala okumanya ebisingawo ku bikwata ku biwandiiko ebikwata ku nsonga eno mu bujjuvu, embeera z’okukozesa, n’engeri y’okulongoosaamu ebintu byaffe byonna-omuli emifaliso gya Teflon egy’ebbugumu eringi, obutambi bwa Teflon obw’ebbugumu eringi, emisipi egy’akatimba egy’ebbugumu eringi egya Teflon, emisipi egy’obutimba egitalina kyesiiga egya laminators, emifaliso gya PTFE egy’oludda olumu, conveyor ey’ebbugumu eringi emisipi, emifaliso egya fiberglass egy’ebbugumu eringi, n’ebirala —nsaba obeere nga oli waddembe okututuukirira ng’oyita mu bino wammanga:

Kuba ku ssimu yaffe ey’okuweereza:

- Mwami Guo: 18944819998

- Mwami Liu: 13705266308

Bulijjo tunywerera ku ndowooza y’obuweereza ey’ekikugu era etambulira ku bwesimbu, era twewaddeyo okukuwa eby’okugonjoola ebizibu mu kifo kimu n’obuweereza obufaayo!