Flowable Silicone Sealant Ma Siesie Owia Module Backsheets a Asɛe

Czech-Austria nhwehwɛmu kuw bi ayɛ polysiloxane gel a ɛyɛ adwuma yiye-a ebetumi asiesie owia module akyi nkrataa a asɛe no yiye, asan de wɔn nneɛma a ɛbɔ ho ban no aba na ama photovoltaic (PV) nhyehyɛe a abɔ akora no adwumayɛ nkwa nna atrɛw. Saa ano aduru foforɔ yi di asɛm a ɛho hia a owia ahoɔden adwumayɛbea adwumayɛfoɔ hyia no ho dwuma, ɛfiri sɛ akyi krataa a wɔsɛe no-titiriw wɔ module a wɔyɛeɛ bɛyɛ afe 2010-taa de ahobanbɔ ho haw ne ahoɔden a wɔyɛ no a wɔhwere kɛseɛ ba.

Nhwehwɛmufoɔ no de polysiloxane gel soronko bi dii dwuma, a wɔne Czech-based silicone manufacturer Siltech Solutions a wɔtaa de di dwuma sɛ encapsulation aboafoɔ ma PV modules yɛɛ adwuma. Nea ɛnte sɛ atetesɛm mu nneɛma a ɛyɛ den a wɔde siesie nneɛma no, kuw no yɛɛ nsakrae wɔ gel no mu sɛnea ɛbɛyɛ a ɛbɛma nsu a ɛsen no ayɛ kɛse, na ɛmaa ɛhyɛɛ mpaapaemu teateaa mpo ma na ɛyɛɛ ahobammɔ a enni nhama wɔ akyi ntama a asɛe so. Gel no yɛ silicone-based polymer matrix, a wɔde fumed silica ahyɛ mu den sɛ ade a wɔde hyɛ mu ma ɛyɛ den, ne moisture-curing agent a ɛma ɛyɛ den bere a ɛda mframa a atwa yɛn ho ahyia ne ɔhyew mu no.

"Nsu{0}}fi ase sa yare no fi soro kɔ abɔnten, na gel no yɛ den nkakrankakra bere a nsu no trɛw kɔ ade no mu no," nhwehwɛmufo no kyerɛkyerɛɛ mu. "Sɛ wɔsa no yiye wie a, gel no yɛ elastomer a ɛyɛ mmerɛw a ɛwɔ ahoɔden a ɛtwetwe ne tenten a ɛkyɛn so, na ɛhwɛ hu sɛ ɛbata nneɛma a wɔtaa de di dwuma wɔ akyi krataa so nyinaa ho denneennen-mpo nea ɛwɔ hɔ dedaw a ɛsɛe anaasɛ ɛwɔ soro a ɛnkɔ so pɛpɛɛpɛ." Saa adhesion yi ho hia kɛse na wɔasiw nsu a ɛkɔ mu ano, a ɛno ne ade titiriw a ɛde akyi krataa no sɛe bio na insulation no di huammɔ.

 

Sɔhwɛ wɔ backsheet nneɛma so

Wɔdii kan sɔɔ polysiloxane gel no hwɛeɛ wɔ backsheet nneɛma ahodoɔ anum a wɔtaa de di dwuma so, a ɛkyerɛ nneɛma ahodoɔ a wɔde dii dwuma wɔ PV modules mu wɔ mfeɛ du a atwam no mu: co-extruded polyamide (AAA backsheet); polyvinyl fluoride (PVF)-PET a ɛwɔ afã abien; polyvinylidene fluoride (PVDF)-PET a ɛwɔ afã abien; primer-a wɔde akata so PET; ne ethylene tetrafluoroethylene (ETFE)-a wɔde afrafra foforo a egyina so. Wɔpaw saa nneɛma yi esiane sɛnea wɔde di dwuma kɛse ne sɛnea wonim sɛ ɛyɛ mmerɛw sɛ ɛbɛsɛe bere kɔ so nti.

Wɔtwitwaa nhwɛsoɔ a ɛyɛ ahinanan (3cm tɛtrɛtɛ, 12cm tenten) firii akyi krataa ahodoɔ biara mu, na wɔde gel no guu mframa-fã a ɛda adi wɔ nhama biara mu. "Wɔde akyi krataa a ɛto so abien, mframa fã akɔ fam, guu gel-coated nhwɛsode no atifi na miaa no brɛoo sɛnea ɛbɛyɛ a wobenya gel kɛse a ɛyɛ pɛ a ɛbɛyɛ 1.2mm," kuw no kyerɛkyerɛɛ mu kɔɔ akyiri. "Wɔyii gel a ɛboro so no fii anoano, na wɔsaa nhwɛsode ahorow no yare wɔ digrii Celsius 25 ne nsu a ɛyɛ nwini 55% nnafua 30. Wɔ aduruyɛ akyi no, wɔde nhwɛsode no yɛɛ onyin ntɛmntɛm wɔ wim tebea dan mu wɔ digrii Celsius 85 ne nsu a ɛyɛ nwini 85% nnɔnhwerew 1,000-a standard test for PV component durability."

Post-sɔhwɛ nhwehwɛmu daa no adi sɛ gel no daa adhesion soronko adi wɔ backsheet ahorow anum no nyinaa ho, a 100% cohesive huammɔdi a wohuu wɔ nhwɛsode biara mu. Eyi kyerɛ sɛ na abusuabɔ a ɛda gel ne akyi krataa no ntam no mu yɛ den sen gel no ankasa, na ɛsi ahotoso a wɔde bere tenten-gyina so ne sɛnea ɛko tia delamination no so dua.

 

Sɔ hwɛ wɔ awotwe-mfe-degraded panels so

Afei, wɔsɔɔ gel no hwɛe wɔ PV module ahorow a abɔ akora a AAA akyi nkrataa a wɔde mfe awotwe ayɛ adwuma na ɛdaa sɛnkyerɛnne ahorow a emu yɛ den adi sɛ asɛe, a mpaapaemu a emu dɔ a ɛkɔ akyiri a ɛwɔ nkwammoaa no busbars atifi ne nea ɛwɔ soro a ɛyɛ mmerɛw ka ho. Wɔde gel no guu mpaapaemu no mu tẽẽ denam precision cartridge so, afei wɔde spatula a ɛtrɛw trɛw mu pɛpɛɛpɛ wɔ akyi krataa no ani nyinaa ma ɛyɛɛ ade a ɛbɔ ho ban. Afei wɔde module ahorow a wɔasiesie no guu wim tebea dan koro no ara mu de nnɔnhwerew 1,000 yɛɛ ɔhyew a ɛyɛ nwini.

Nsusuwii a wɔyɛe wɔ onyin akyi no kyerɛe sɛ na wɔatoto mpaapaemu no mu koraa na wontumi nhu bio, na module ahorow a wɔasiesie no nyaa insulation resistance values ​​a ɛboro 200 MΩ-a ɛboro ahobammɔ ahwehwɛde a ɛwɔ PV module adwumayɛ mu no so yiye. "Wɔ ɔhyew a ɛyɛ nwini sɔhwɛ a wɔyɛe ntɛmntɛm akyi mpo no, module ahorow no kuraa insulation adwumayɛ a ɛkorɔn mu na wotwaa wet leakage sɔhwɛ no mu a na sɛnkyerɛnne biara nni hɔ a ɛkyerɛ sɛ nsu akɔ mu," nhwehwɛmufo no kae. Eyi si so dua sɛ gel no tumi san de ahobammɔ ne adwumayɛ ho nkyerɛkyerɛmu a ɛho hia ba wɔ module ahorow a ɛyɛ onyin mu.

 

Sɔhwɛ wɔ owia ahoɔden adwumayɛbea a ɛyɛ adwuma so

Sɛnea ɛbɛyɛ na wɔagye wiase adwumayɛ ankasa atom no, nhwehwɛmu kuw no de ɔkwan a wɔfa so siesie nneɛma no dii dwuma wɔ owia ahoɔden adwumayɛbea a ɛyɛ 10MW wɔ Czech Republic, baabi a na module pii anya akyi krataa a ɛsɛe no. "Wɔde polysiloxane gel no guu afuw mu a wɔanbubu modules-a wɔde mae afi nsa a wɔde hyɛ mu mu na wɔde spatula ayɛ no mmerɛw wɔ akyi krataa no ani," kuw no sii so dua. "Wɔgyaw module ahorow a wɔasiesie no sɛ ɛnyɛ adwuma wɔ wiase tebea ankasa mu asram abiɛsa, a wɔde wɔn ho hyɛɛ ɔhyew, ɔhyew, ne UV mframa a ɛsono emu biara mu."

Wet leakage sɔhwɛ ahorow a wɔyɛe wɔ afuw mu sɔhwɛ no akyi no sii so dua sɛ module ahorow a wɔasiesie no kuraa insulation resistance a ɛkorɔn na ɛyɛ adwuma sɛnea ɛsɛ, a ahoɔden a ɛba no so tew biara sɛ wɔde toto module ahorow a ɛnsɛee ho a. "Mfitiase afuw mu aba kyerɛ sɛ gel no ma module adwumayɛ gyina yiye, ɛwom sɛ bere tenten-sɔhwɛ ho hia wɔ mfe pii mu na ama wɔahwɛ ne kyɛ koraa," nhwehwɛmufo no kae. "Asɛmmisa titiriw a aka ne sɛ ebia akyi krataa a wɔasiesie no betumi ne mfitiase no bere tenten-nsu akwanside adwumayɛ ahyia, titiriw wɔ mmeae a wim tebea yɛ den."

Wotintim nhwehwɛmu no wɔ krataa "Field-applicable polysiloxane gel repair for degraded photovoltaic module backsheets" mu wɔ Journal of Photovoltaics Research mu. Nhwehwɛmu kuw no mufo bi ne nyansahufo a wofi Siltech Solutions Czech Republic, Austria Nhwehwɛmu Asoɛe a Ɛhwɛ Nnuru ne Mfiridwuma So (OFI), ne Czech Mfiridwuma Sukuupɔn a ɛwɔ Prague-a wɔde mmɔdenbɔ a wɔbom yɛ de yɛ PV siesie ano aduru a ɛho ka sua, a ɛtra hɔ daa so.