Double-afã teapɔn yɛ ade a wɔtaa de bata ho, na ne su nya ne dwumadi so nkɛntɛnso tẽẽ. Sɛnea ɛbɛyɛ a nneɛma a wɔyɛ no bɛyɛ adwuma yiye no, ɛhwehwɛ sɛ wɔyɛ nhwehwɛmu a edi mũ denam nhyehyɛe a wɔde hwehwɛ nneɛma mu so.
Sɛnea wɔhwɛ wɔn ho no ne ade titiriw a wɔyɛ. Wɔ aniwa so anaasɛ wɔde ahwehwɛ a ɛma ade kɛse yɛ ade no hwɛ ade a wɔde nkata so no so hwɛ sɛ ɛyɛ petee, efĩ biara nni ho, ahurututu, anaasɛ nneɛma a asɛe, na anoano no yɛ nea ɛyɛ fɛ. Afei nso, hwɛ nneɛma a ɛwɔ akyi (te sɛ film anaa foam) no mu hwɛ sɛ ebia nkekae, nkekae, anaa kɔla ahorow a ɛsono emu biara wɔ hɔ anaa. Saa anammɔn yi boa ma wohu nneɛma a ɛwɔ sintɔ ahorow a ɛda adi pefee no ntɛmntɛm.
Dimensional susudua hwehwɛ sɛ wɔsusu nnwinnadeɛ a ɛyɛ pɛpɛɛpɛ 0.01mm de hwɛ sɛ adhesive layer no mu duru, ne tɛtrɛtɛ, ne ne tenten hyia nhyehyɛɛ ahwehwɛdeɛ. Ɛsɛ sɛ wɔhwɛ sɛnea nneɛma a ɛwɔ akyi ne ade a wɔde nkata so no hyia nso na ama wɔahwɛ ahu sɛ nneɛma a ɛtwetwe no wɔ anohyeto a wogye tom mu.
Adhesion sɔhwɛ yɛ anammɔn titiriw, a ɛka ho nyinaa mfiase tack ne kura ahoɔden. Wɔde rolling ball test-wɔde dadeɛ bɔɔl a ɛyɛ gyinapɛn na ɛsusu mfitiaseɛ adhesion no kɔ fam wɔ plane a ɛkɔ fam so, na wɔtwerɛ bɔɔl kɛseɛ a ɛkyɛn so a adhesive no kura mu. Sɛnea ɛbɛyɛ a adhesion bɛkɔ so no, wɔde teapɔn no si sɔhwɛ mprɛte a wɔahyɛ da ayɛ so no, wɔde adesoa bi asɛn so wɔ ɔhyew pɔtee bi mu, na wɔsusuw bere a egye na ade a wɔde nkata so no atumi atutu afi ase no. Peel ahoɔden sɔhwɛ nso ho hia kɛse: wɔde tensile sɔhwɛ afiri di dwuma de tetew teapɔn no mu ntɛmntɛm bere nyinaa, na wɔkyerɛw tumi a wɔhwehwɛ wɔ unit no trɛw biara ho na ama nkitahodi no ayɛ den.
Wim tebea a ɛko tia ne nneɛma a atwa yɛn ho ahyia ho sɔhwɛ no yɛ tebea horow a emu yɛ den ho nhwehwɛmu: ɔhyew a ɛkɔ soro (sɛ nhwɛso no, 80℃), ɔhyew a ɛba fam (-20℃), ne ɔhyew a ɛkɔ soro (RH90%) na wɔkora so nnɔnhwerew 24-72, na ɛno akyi no, wɔsan sɔ hwɛ ma nsakrae a ɛba adhesion mu no. Wɔ tebea horow bi mu no, nsu mu nsu mu nhwehwɛmu a wɔyɛ wɔ nnuru a wɔde yɛ nneɛma mu (sɛ nhwɛso no, nsa ne kar mu ngo) nso ho hia.
Nea etwa to no, wɔde data nyinaa toto nnwuma gyinapɛn ho (sɛ nhwɛso no, GB/T 2792 ne ASTM D3330) na wɔde sɔhwɛ amanneɛbɔ ma. Double-afã teapɔn a ɛne adwumayɛ ho gyinapɛn nyinaa hyia no nkutoo na wɔayi no adi wɔ gua so. Saa nhyehyɛe yi nyɛ sɛ ɛbɛma nneɛma no ayɛ papa nko na mmom ɛma wonya nnyinaso a wotumi de ho to so ma nnwuma a ɛwɔ fam no nso.
