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Kodi silikoni imaposa bwanji zikopa zachikhalidwe?
2023-11-23
The permeability wa chikhalidwe chikopa yokumba nthawi zambiri osauka, pamene permeability wa silikoni chikopa ndi bwino. Chifukwa cha kusiyana kwakukulu pakati pa mamolekyu ake, ndizothandiza kwambiri kuti nthunzi yamadzi ilowe. Poyerekeza ndi zikopa zachikhalidwe, chikopa cha silikoni chimakhala ndi mpweya wabwino. Pankhani ya kukana kuvala, chikopa cha organic silicon chimaposanso bwino chikopa chochita kupanga. Chikopa cha organic silicon chimakhala ndi kukana kwabwino. Pansi pa kuyesa kukana kuvala, liwiro lozungulira ndi 60 revolutions pansi pa katundu wa 1000g, ndipo liwiro lozungulira ndiloposa 2000 revolutions pamphindi. Palibe kusintha koonekeratu. Coefficient ndi yokwera ngati giredi 4. M'moyo watsiku ndi tsiku, imatha kukwaniritsa zosowa zamitundu yosiyanasiyana yogwiritsira ntchito.
Pankhani ya zinthu zachikopa, kukana chinyezi komwe anthu ochepa amatha kulabadira ndikofunikira kwambiri. Mwachitsanzo, nyengo yamvula kum'mwera, chikopa chochita kupanga chimakhala ndi kumverera konyowa pamtunda, zomwe zimakhala zoipa kwambiri. Pansi pa kuyesedwa kwa chinyezi, kutentha kuli 40 ° C, chinyezi ndi 92%, ndipo mankhwalawa alibe kusintha kwachilendo. Ntchito yoteteza chinyezi ndi yabwino kwambiri, yomwe ingalepheretse chikopa kuti chisawonongeke ndi nyengo yamvula. Ichi ndi mawonekedwe apadera a silicone.
Nanga bwanji moyo wa chikopa cha silicone? Chimodzi mwazinthu za chikopa cha silikoni ndikuti chimakhala ndi kukana kukalamba kwambiri, kukana kwamphamvu kwa hydrolysis, kukana kwanyengo ndi kukana kwa UV, zomwe ndi zabwino kuposa zikopa zachikhalidwe zopanga, motero moyo wake udzakhala wautali.
Kupindula mwalamulo ndi mikhalidwe yosayerekezeka ya silicon, ndikupangitsa kuti ikhalebe yokhazikika komanso magwiridwe antchito abwino kwambiri m'malo ambiri ovuta, ndi njira yokulirapo yachikopa ya silikoni, yomwe nthawi zambiri imakhala yayitali mu chinyezi, mafakitale owononga, imakhala malo ofunikira kwambiri a chikopa cha silicone, monga mipando ndi zokongoletsera pamabwato, mipando yakunja, mipando yamagalimoto, zida zamankhwala ndi zina zotero. Kuphatikiza pa kukana kwa asidi ndi alkali, chikopa cha silikoni chimakhalanso ndi anti-khwinya ndi anti-ultraviolet katundu, ngakhale kuwonekera kwa nthawi yayitali kunja kwa dzuwa sikungakhale ndi zotsatirapo zilizonse, chifukwa chake, mipando yambiri yamasitediyamu tsopano ikugwiritsa ntchito zikopa za silikoni kupanga. .
