Uhlalutyo lweNkqubo yoVavanyo lwe-Sealant

Njengesixhobo esibalulekileyo sokutywina kumacandelo okwakha, ezemoto, kunye nelemizi-mveliso, ukusebenza kwee-sealants kuchaphazela ngqo umgangatho weprojekthi kunye nobomi benkonzo. Ukuqinisekisa ukuthembeka kwe-sealant, zifuna uvavanyo olubanzi ngokusebenzisa inkqubo yovavanyo olucwangcisiweyo.

1. Ukulungiselela iSampuli kunye noNyango lwangaphambili

Ngaphambi kovavanyo, iisampulu ze-sealant kufuneka zilungiswe ngokwemigangatho eqhelekileyo. Oku kubandakanya ukulungiswa kwesubstrate (umzekelo, ukucocwa kunye nokupolisha), ukuxuba ukuncamathelisa (amacandelo amabini kufuneka axutywe ngokulinganayo ngomlinganiselo ochanekileyo), kunye nokwenza (umzekelo, ukubumba inaliti okanye ukugquma). Iisampulu kufuneka zinyangelwe kwindawo esemgangathweni (iqondo lobushushu 23±2 degree, ukufuma 50±5% RH) ixesha elichaziweyo (umzekelo, iiyure ezingama-24) ukulinganisa iimeko zokusetyenziswa.

2. Uvavanyo lwePropati yoMzimba

Uvavanyo loBulukhuni: I-durometer yonxweme isetyenziselwa ukulinganisa ubulukhuni kunye nokuthamba kwe-sealant ephilisiwe ukuqinisekisa ukuba iyahlangabezana neemfuno zesicelo.

I-Tensile Adhesion: Umatshini wokuvavanya i-tensile usetyenziselwa ukulinganisa amandla ebhondi kunye nobude bekhefu phakathi kwe-sealant kunye ne-substrate yokuvavanya ukuchasana kwayo nokufuduka.

Inqanaba lokuBuyisa i-Elastic: Oku kulinganisa ukukwazi kwe-colloid ukubuyela kuguquko emva koxinzelelo, okubonisa ukumelana nokudinwa kwayo ngexesha{0} lokusetyenziswa kwexesha elide.

III. IiMvavanyo zeMichiza kunye neMozulu

Olu vavanyo lubandakanya ukuxhathisa ubushushu (utshintsho lokusebenza emva kokugcinwa kobushushu obuphezulu/ obuphantsi), ukumelana namanzi (ukugcinwa kokuncamathela emva kokuntywiliselwa), kunye novavanyo lokuguga kwe-UV (ukulinganisa ukutyheli okanye ukutshoka okubangelwa kukukhanya kwexesha elide{0}). Ezinye izicelo ezikhethekileyo nazo zifuna ukuvavanywa ukuzinza kweekhemikhali, ezifana neoli kunye nokumelana ne-solvent.

IV. Izinto ezinobungozi kunye nezalathi zokusingqongileyo

Ngokwemigaqo echaphazelekayo (efana ne-GB 18583), umxholo we-volatile organic compound (VOC), iintsalela zetsimbi enzima, kunye nokukhutshwa kwe-formaldehyde kuvavanywa ukuqinisekisa ukuthotyelwa kweemfuno zokusingqongileyo.

V. Isiphumo sokutolika kunye nokunika iNgxelo

Yonke idatha yovavanyo kufuneka ithelekiswe nemigangatho kazwelonke (efana ne-GB/T 14683 kunye ne-ASTM C920) okanye imigangatho yoshishino. Ingxelo esesikweni equlethe iindlela zovavanyo, iimeko, kunye nezigqibo ziya kukhutshwa ukunika isiseko senzululwazi sokukhethwa kwezinto.

Ngale nkqubo isemgangathweni, ukusebenza kwesealant kunokuqinisekiswa ngokucwangcisiweyo, kuqinisekiswe ukuthembeka kwayo{0}}kwexesha elide kwiimeko ezinzima.