I. IiNdlela zeNkcazo kunye neMilinganiselo yeZalathi
1. Iqhezu lejeli:
Iqhezu lejeli libhekisa kwipesenti yobunzima bothungelwano oluqhagamshelweyo kwi-silicone enovakalelo olunovakalelo lokuncamathelisa oluqatywe phezu. Iteyiphu yeTeflon yobushushu obuphezulu obunganyibilikiyo kwizinyibilikisi ezilungileyo (ezifana netoluene). Inkqubo yokulinganisa ibandakanya ukugubungela ifilimu ecocekileyo yokunamathela kwi-mesh yokucoca, ukuyikhupha kwi-extractor ye-Soxhlet kwiiyure ezingama-24, kwaye ngokomisa i-residu engenakunyibilika kwisisindo esiqhubekayo phambi kokubala.
2. Amandla okubambisana:
Kwiteyiphu yeTeflon, amandla abambeneyo abonakaliswe ngamandla obushushu obuphezulu (iqondo lokushisa lokungaphumeleli kwe-shear adhesion okanye ixesha lokubamba i-shear). Uvavanyo ngokuqhelekileyo luqhutywa kwi-180 ° C phantsi komthwalo we-1 kg, ukurekhoda ixesha de kube i-adhesive layer ityibilika okanye ingaphumeleli. Eli xabiso libonisa ngokuthe ngqo isakhono sokuncamathelisa ukuchasa ukuhamba kunye nokwahlula.
II. Imbalelwano yobungakanani phakathi kweGel Fraction kunye neCohesive Strength
1. Ngaphantsi kwendawo ebalulekileyo (iqhezu le-gel <60%):
Inkqubo ayikaqulunqi inethiwekhi ye-percolating; umaleko wokuncamathelisa uhlala kwimo ye-viscous-flow, kunye nokubamba amandla asondela ku-zero kwaye akukho mandla abambekayo asebenzayo.
2. Uluhlu olusebenzayo (60%–85%):
Ngaphandle kwenqaku elibalulekileyo, i-elastic chain density esebenzayo inyuka ngokukhawuleza kunye neqhezu le-gel, kwaye amandla okubambisana akhula ngokukhawuleza okanye ukulandela umthetho ophezulu wamandla. Ukwandisa i-gel fraction ukusuka kwi-60% ukuya kwi-70% kunokunyusa ixesha lokubamba ukushisa okuphezulu ukusuka kwimizuzu ukuya kwiiyure; ukusuka kwi-70% ukuya kwi-80%, amandla okubamba anganyuka nge-3 eyongezelelweyo kwi-10 amaxesha. Imo yokungaphumeleli ngokuthe ngcembe itshintsha ukusuka kwintsilelo enkulu ebambeneyo ukuya kukusilela okuxutyiweyo.
3. Uluhlu oludityanisiweyo oluphezulu (> 85%):
Ukunyuka kwamandla okubambisana kunciphisa. Ukuphakamisa iqhezu le-gel ukusuka kwi-85% ukuya kwi-95% kwandisa ixesha lokubamba ngama-20% -50% kuphela, kodwa i-tack (i-adhesion yokuqala) yehla kakhulu ngenxa yokuthintelwa kwe-molecular chain chain. Xa i-gel fraction idlula i-95%, i-adhesive layer isondela kwimeko ye-elastomer ecocekileyo, kunye neempawu zokubambelela ezixinzelelekileyo zilahleka.
III. Imodeli yeSemi-Empirical kunye neDatha eqhelekileyo
Njengoko kushwankathelwa ngabavelisi belaphu lobushushu obuphezulu beJiangsu Teflon, ubudlelwane obunamandla phakathi kwexesha lokubamba i-chear (t_shear) kunye neqhezu lejeli (g) lingabonakaliswa ngolu hlobo:
lg (t_shear) = A + B · g (kunye no-B malunga ne-0.1–0.2), ebonisa ukuxhomekeka kwe-exponential. Amaxabiso e-A kunye ne-B axhomekeke kwi-MQ resin ratio, ubukhulu be-adhesive layer, kunye nobushushu bovavanyo.
Idatha eqhelekileyo ehambelanayo (i-180 °C ukucheba okumileyo, okuqhelekileyo ukuya kwixesha lokubamba i-1 kwi-65% yeqhezu lejeli):
| Iqhezu leGel | Isihlobo sokubamba ixesha | Imo Yokusilela |
|--------------------------------------------------------|
| 55% | < 0.1 | 100% ukusilela ngokubambisana |
| 65% | 1 | ~ 80% ukusilela ngokubambisana |
| 75% | 8–15 | Ukusilela okuxutyiweyo |
| 85% | 50–100 | Intsalela encinci |
| 92% | 150–200 (kufuphi nesaturation) | Ukusilela okucocekileyo kobuso |
Kuyabonakala ukuba kwi-60% -90% yoluhlu, zonke iipesenti ze-5 zokunyuka kwinqanaba le-gel zingakhokelela ekunyuseni okuphindaphindiweyo kokunyuka kobushushu obuphezulu.
IV. Ukulawula izicwangciso kwiTeflon Tape Manufacturing
1. Uluhlu lwamaqhezu ejeli ekujoliswe kuyo:
Kwiiteyiphu zokuvala ubushushu ezichasene nobushushu ezivela kwiJiangsu Teflon abavelisi belaphu lobushushu obuphezulu, iqhezu lejeli elicetyiswayo yi-75% -85%, i-bancing tack kunye nokudibanisa. Kwiibhanti ze-anti-stick conveyor zokushisa eziphezulu (ngokuxhomekeke ekulayisheni ixesha elide kwi-200-260 ° C), iqhezu le-gel kufuneka lifikelele kwi-85% -93% ukukhusela i-residu enamathelayo ebangelwa ukuhlukana ngokubambisana kwe-adhesive layer.
2. Iimfuno zokuthelekisa ujongano lwesinxibelelanisi:
Umphezulu we-PTFE weTeflon weteyiphu yobushushu obuphezulu unamandla aphantsi kakhulu; ngoko ke, amandla adibeneyo oluhlu lwe-adhesive kufuneka abe phezulu kunamandla okubambelela kwi-interfacial; ngaphandle koko, ukungaphumeleli kokubambisana kuya kwenzeka phantsi koxinzelelo. Ukuba i-gel fraction idlula i-93%, i-adhesive layer iba lukhuni, inciphisa ukumanzisa kunye nokuhambelana ne-PTFE substrate, enokuthi iholele ekuphakanyisweni komphetho. Kwimveliso, kubalulekile ukulawula ngokuchanekileyo ubushushu obunqamlezayo, ixesha, kunye nedosi ye-catalyst ukutshixa iqhezu lejeli phakathi koluhlu olujoliswe kuyo, ukufezekisa inguqu ethembekileyo ukusuka ekungaphumelelini kokubambisana ukuya kukusilela kobuso.
Olu lwazi lungentla lunikezelwa ngu Jiangsu Okai New Material Technology Co., Ltd.
Ukuba ungathanda ukufunda ngakumbi malunga neenkcukacha ezicacileyo, iimeko zesicelo, kunye neenketho zokwenza ngokwezifiso uluhlu lwethu olupheleleyo lweemveliso-kubandakanya amalaphu eTeflon aphezulu obushushu, iiteyiphu zeTeflon ezinobushushu obuphezulu, amabhanti eTeflon anobushushu obuphezulu, amabhanti angenamthungo angenamthungo welaminators, i-single-side, i-conductor-femperor amalaphu e-fiberglass enobushushu obuphezulu, kunye nokunye-nceda uzive ukhululekile ukuqhagamshelana nathi ngoku kulandelayo:
Tsalela umnxeba wenkonzo yethu:
- UMnu Guo: 18944819998
- UMnu Liu: 13705266308
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