Silicone sealant kana adhesive ine simba, inochinjika chigadzirwa chinogona kushandiswa mune akawanda akasiyana maapplication. Kunyange zvazvo silicone sealant isina kusimba sezvimwe zvisimbiso kana zvinonamira, silicone sealant inoramba ichichinjika, kunyangwe kana yanyatsooma kanakurapwa. Silicone sealant inogonawo kumira tembiricha yakanyanya, ichiita kuti ive yakanaka kune maapplication anotambura nekupisa kupisa kwakanyanya, senge painjini gaskets.
Yakarapwa silicone sealant inoratidza yakanakisa kuramba kwemamiriro ekunze, kuchembera kuramba, UV kuramba, ozone kuramba, yakakwirira uye yakaderera tembiricha kuramba, vibration kuramba, kunyorova, uye kudzivirira mvura; saka, mashandisirwo ayo akawanda kwazvo. Mumakore ekuma1990, yaiwanzo shandiswa kubatanidza nekuisa chisimbiso muindasitiri yegirazi, saka inowanzonzi "girazi rinonamira."
Mufananidzo wepamusoro: Yakaporeswa silicone sealant
Mufananidzo wekuruboshwe: Drum packing yesilicone sealant
Silicone sealant inowanzobva pa 107(hydroxy-terminated polydimethylsiloxane), uye inoumbwa nezvinhu zvakadai se high-molecular-weight polymers, plasticizers, fillers, cross-linking agents, coupling agents, catalysts, etc. Mapurasitiki anowanzoshandiswa anosanganisira silicone. mafuta, mafuta machena, etc. Mafirita anowanzo shandiswa anosanganisira nano-activated calcium carbonate, heavy calcium carbonate, ultrafine calcium. carbonate, fumed silica, uye zvimwe zvinhu.
Silicone sealants inouya nenzira dzakasiyana siyana.
Zvinoenderana nerudzi rwekuchengetedza, yakakamurwa kuita: maviri (multi) chikamu uye chimwe chikamu.
Zviviri (zvakawanda) chikamu zvinoreva kuti silicone sealant yakakamurwa kuita mapoka maviri (kana anopfuura maviri) zvikamu A uye B, chero chikamu chimwe chete hachigone kuumba kurapa, asi mushure mezvikamu zviviri (kana zvinopfuura zviviri) zvikamu zvasanganiswa, zvicha gadzira-cross-linking curring reaction kuti uite elastomers.
Musanganiswa unofanirwa kugadzirwa pakarepo usati waushandisa, izvo zvinoita kuti rudzi urwu rwesilicone sealant ive nyore kushandisa.
Silicone sealant inogonawo kuuya sechigadzirwa chimwe chete, pasina kusanganisa kunodiwa. Imwe mhando ye-single-product silicone sealant inonziRoom Temperature Vulcanizing(RTV). Ichi chimiro chechisimbiso chinotanga kuporesa pakarepo painoratidzirwa kumhepo - kana, kunyanya, hunyoro huri mumhepo. Naizvozvo, zvinodikanwa kuti ushande nekukurumidza kana uchishandisa RTV silicone sealant.
Single-component silicone sealant inogona kukamurwa zvakaenzana kuva: deacidification type, dealcoholization type, deketoxime type, deacetone type, deamidation type, dehydroxylamine type, etc. maererano nemhando dzakasiyana-siyana dze crosslinking (kana kuti mamorekuru maduku anogadzirwa panguva yekurapa) anoshandiswa. Pakati pavo, deacidification mhando, dealcoholization mhando uye deketoxime mhando inonyanya kushandiswa mumusika.
Deacidification type ndeye methyl triacetoxysilane (kana ethyl triacetoxysilane, propyl triacetoxysilane, etc.) sechinhu chinosanganisa, chinoburitsa acetic acid panguva yekurapa, inowanzozivikanwa se "acid glue". Zvakanakira zvaro ndezvi: simba rakanaka uye kujeka, kukurumidza kurapa kukurumidza. Zvakaipa ndezvi: kushungurudza acetic acid kunhuwa, kuora kwesimbi.
Dealcoholization type ndeye methyl trimethoxysilane (kana vinyl trimethoxysilane, zvichingodaro) sechinhu chinosanganisa, kurapa kwayo kunoburitsa methanol, inowanzozivikanwa se "doro-mhando glue". Zvakanakira zvaro ndeizvi: kuchengetedzwa kwezvakatipoteredza, kusaora. Zvakaipa: kunonoka kuporesa kumhanya, kuchengetedza pasherufu hupenyu hushoma.
Deketo oxime type ndeye methyl tributyl ketone oxime silane (kana vinyl tributyl ketone oxime silane, zvichingodaro) sechinhu chinosanganisa, chinoburitsa butanone oxime panguva yekurapa, inowanzozivikanwa se "oxime type glue". Zvakanakira zvaro ndezvi: hapana kunhuhwirira kwakanyanya, kunamatira kwakanaka kune akasiyana zvinhu. Kukanganisa: kuora kwemhangura.
Zvinoenderana nekushandiswa kwezvigadzirwa zvakakamurwa kuita: structural sealant, weather resistant sealant, gonhi nehwindo sealant, sealant joint, fire-proof sealant, anti-mildew sealant, high tembiricha sealant.
Zvinoenderana nerudzi rwechigadzirwa kune mapoinzi: yakajairika ruvara dema, porcelain chena, yakajeka, sirivheri grey 4 marudzi, mamwe mavara atinogona kuita zvinoenderana nevatengi zvinodiwa toning.
Kune mamwe akasiyana-siyana, akawedzera tekinoroji mafomu esilicone sealant zvakare. Imwe mhando, inonzipressure sensitivesilicone sealant, ine tackiness yekusingaperi uye inonamatira nekumanikidza nemaune - nemamwe mazwi, kunyangwe ichigara "yakanamira," haibatike kana chimwe chinhu chikangobhurasha kana kumira pachiri. Imwe mhando inonziUV or mwaranzi inorapwasilicone sealant, uye inoshandisa ultraviolet mwenje kurapa chisimbiso. Pakupedzisira,thermosetsilicone sealant inoda kuratidzwa nekupisa kuitira kurapa.
Silicone sealant inogona kushandiswa mumhando dzakasiyana dzekushandisa. Iri rudzi rwechisimbiso rinowanzo shandiswa mumotokari uye zvine hukama maapplication, seyamuro yekuisa chisimbiso injini, ine kana isina gaskets. Nekuda kwekuchinjika kwayo kwepamusoro, chisimbiso zvakare isarudzo yakanaka kune zvakawanda zvekuzvivaraidza kana mhizha.
Nguva yekutumira: Zvita-29-2023
