PTFE Tape Adhesion vs Temperature: Engeri y'okulongoosaamu

Jiangsu Aokai New Materials, omukugu mu kukola ensibuko ya PTFE obutambi obw’ebbugumu eringi, ekugabana amagezi ag’ekikugu.

PTFE (Teflon) tape ya bbugumu eringi okutwalira awamu esobola okukozesebwa obutasalako mu bbugumu eriri wakati wa -196°C okutuuka ku 260°C . Mu nkola ezisinga obungi, ekkomo ly’okuziyiza ebbugumu erya ttaapu liziyizibwa oluwuzi olusiiga  okusinga PTFE substrate. Enkola yaayo egoberera amateeka amategeerekeka agakwata ku bbugumu:

Omulimu gw’okusiiga gukendeera ng’ebbugumu lirinnya  Ng’ebbugumu lyeyongera, ekyesiiga kigonvuwa mpolampola, kyekulukuunya n’okutuuka n’okukendeera, ekivaako amaanyi g’okukwatagana okukendeera. Mu macroscopically, kino kyeyoleka nga okugwa mu kukwata adhesion.

Omusingi gw’omulimu ogusalibwawo ekika ky’ekyesiiga  Ebisiiga eby’enjawulo birina ebbugumu ery’enjawulo ennyo ery’okulemererwa:

 

To improve the high-temperature holding time , optimization esinga kukolebwa okuva mu nsonga ssatu: adhesive formulation, substrate performance, ne interfacial bonding structure.

1. Adhesive Layer: Yongera ku Weak Link

·  Londa enkola y’okusiiga egumira ebbugumu eringi : Kulembeza ekyesiiga ekikwata ku puleesa ya silikoni ku mbeera z’okukola ez’ebbugumu eringi okumala ebbanga eddene.

·  Okukyusa fluorocarbon : Kyuusa ekisiiga kya silicone n’ebirungo bya fluorocarbon okulinnyisa ebbugumu ly’enkyukakyuka y’endabirwamu (Tg) okutuuka ku 230°C. Oluvannyuma lw’essaawa 48 ez’okukozesa obutasalako ku 260°C, omuwendo gw’okusigala kw’okunyweza gukyasukka ebitundu 85%.

·  Okuyingiza omukutu gw’okusalasala : Zimba emikutu gy’okusalasala egya nano-scale okutumbula ennyo amaanyi g’okukwatagana n’okuziyiza okusala kw’oluwuzi olusiiga ku bbugumu erya waggulu.

·  Okwongera ebiziyiza ebbugumu : Teekamu phenol eziremesebwa n’ebintu ebirala ebinyweza ebbugumu mu nkola eno okusobola okuziyiza obulungi okuvunda kw’ebbugumu wansi w’ebbugumu eringi.

2. Substrate Layer: Situla ekkomo ly’okuziyiza ebbugumu okutwalira awamu

·  Okukyusa nano-filler : Okwongera nano silica, boron nitride nanotubes n’obutundutundu obulala mu PTFE substrate okukola ebifo ebisalasala eby’omubiri. Ebbugumu ly’okukyusakyusa ebbugumu liyinza okwongerwako 20–30°C, ate nga likuuma ebitundu ebisukka mu 90% eby’okunyweza okusooka ku 260°C.

·  Enkola y’okusalako molekyu : Okusalako enjegere za molekyu za PTFE okusitula ebbugumu ly’obuweereza obutasalako okutuuka ku 300°C.

·  Okunyweza fiber : Oteekamu 25% glass fiber oba carbon fiber okutumbula creep resistance ebitundu 300%, okusobozesa okukozesa obutasalako okutuuka ku 280°C.

3. Interface & Structural Design: Okwongera ku bunywevu bw’okukwatagana

·  Substrate surface treatment : Siiga plasma treatment oba chemical etching ku PTFE surface okwongera roughness n’okukola surface, okunyweza interfacial adhesion n’okwewala delamination ku bbugumu erya waggulu.

·  Okwongerako oluwuzi lw’ekiziyiza eky’omu makkati : Teeka oluwuzi olw’okwawula ekya polyimide (PI) wakati wa PTFE substrate n’ekyesiiga okuziyiza okuyingira kw’ekisiiga n’okusenguka wansi w’ebbugumu eringi, okulongoosa okutebenkera kw’enzimba okutwalira awamu.

·  Optimize composite structure : Adopt multi-layer composite structure: PTFE okusiiga + okunyweza substrate + high-ebbugumu stable layer , okutebenkeza ebbugumu okuziyiza n'okukola adhesive comprehensively.

·  Reserve thermal expansion clearance : Omugerageranyo gw’okugaziwa mu layini ogwa PTFE gukubisaamu emirundi nga 10 ogw’ekyuma.

Teeka ekituli kya mm 0.15–0.3  mu nteekateeka y’ebizimbe okufulumya obulungi okunyigirizibwa kw’ebbugumu.

Ebintu eby’ekikugu waggulu biweereddwa... Jiangsu Aokai Ebintu Ebipya Tekinologiya Co., Ltd.

Bw’oba weetaaga ebisingawo ku bipimo eby’ekikugu, embeera z’okukozesa n’okugonjoola ebigonjoolwa ku layini yaffe ey’ebintu ebijjuvu — omuli PTFE olugoye olw’ebbugumu eringi, PTFE ttaapu ey’ebbugumu eringi, PTFE omusipi ogw’ebbugumu ery’amaanyi, omusipi gw’ekyuma ekifuyira ekitaliiko musango, olugoye lwa PTFE olw’oludda olumu, omusipi ogutambuza ogugumira ebbugumu eringi n’olugoye lwa fiberglass olugumira ebbugumu eringi — tukusaba obeere nga oli waddembe okututuukirira:

·  Essimu: Mwami Guo +86 18944819998

·  Essimu: Mwami Liu +86 13705266308

Bulijjo tunywerera ku ndowooza ya bizinensi ey’obukugu n’obwesimbu, era tufuba okukuwa eby’okugonjoola eby’amakolero mu kifo kimu n’empeereza elowoozebwako oluvannyuma lw’okutunda.