1. Chii chinonzi vinyl silicone mafuta?
Zita remakemikari: kaviri-capped vinyl silicone mafuta
Chimiro chayo chikuru chechimiro ndechekuti chikamu cheboka remethyl (Me) mu polydimethylsiloxane inotsiviwa nevinyl (Vi), zvichikonzera kuumbwa kwe reactive polymethylvinylsiloxane. Vinyl silicone oiri inoratidza chimiro chemuviri chemvura yemvura nekuda kweiyo yakasarudzika kemikari chimiro.
Vinyl silicone oiri inonyanya kukamurwa kuita marudzi maviri: kupera vinyl silicone oiri uye yakakwirira vinyl silicone mafuta. Pakati pavo, terminal vinyl silicone oiri inonyanya kusanganisira terminal vinyl polydimethylsiloxane (Vi-PDMS) uye terminal vinyl polymethylvinylsiloxane (Vi-PMVS). Nekuda kwezvakasiyana vinyl zvemukati, ine akasiyana maitiro ekushandisa.
Maitiro ekuita kwevinyl silicone oiri yakafanana neye dimethicone, asi nekuda kweiyo vinyl boka muchimiro chayo, ine yakakwirira reactivity. Mukugadzira vinyl silicone oiri, iyo ring-kuvhura equilibrium reaction process inonyanya kushandiswa. Iyo nzira inoshandisa octamethylcyclotetrasiloxane uye tetramethyltetravinylcyclotetrasiloxane seyakagadzirwa, uye inoumba cheni chimiro chine madhigirii akasiyana epolymerization kuburikidza nemhete-inovhura reaction yakagadziriswa neasidhi kana alkali.
2. Kuita maitiro evinyl silicone mafuta
1. Isiri-chepfu, isina kunaka, isina tsvina yemuchina
Vinyl silicone oiri imvura isina ruvara kana yero, inoonekera isina muchetura, isinganhuhwi, uye isina tsvina yemuchina. Oiri iyi hainyungudike mumvura, asi inogona kusanganiswa nebenzene, dimethyl ether, methyl ethyl ketone, tetrachlorocarbon kana parafini, uye inonyungudika zvishoma muacetone uye ethanol.
2. Diki mhute pressure, yakakwirira flash point uye ignition point, yakaderera chando
Izvi zvinoita kuti vinyl silicone zvinwiwa zvigadzikane uye zvisingaite mukupisa kwakanyanya kana nharaunda dzakakosha, nekudaro kuve nechokwadi chekugara kwavo mumhando dzakasiyana dzekushandisa.
3. Reactivity yakasimba
Kaviri-capped vinyl silicone ine vinyl pamigumo miviri, izvo zvinoita kuti ishande zvakanyanya. Pasi pechiito checatalyst, vinyl silicone oiri inogona kuita nemakemikari ane anoshanda ehydrogen mapoka uye mamwe mapoka anoshanda kugadzira akasiyana silicon zvigadzirwa zvine akakosha zvivakwa. Munguva yekuita, vinyl silicone oiri haiburitse zvimwe zvakaderera-mamorekuru-huremu zvinhu uye ine diki diki rekuita deformation, iyo inowedzera kuvandudza kushanda kwayo muindasitiri yemakemikari.
4. Kutsvedza kwakanakisa, kupfava, kupenya, tembiricha uye kuramba kwemamiriro ekunze
Zvinhu izvi zvinoita kuti vinyl silicone fluids ive nehuwandu hwekushandiswa mukushandurwa kwepurasitiki, resin, pendi, coatings, etc. Panguva imwecheteyo, inogona kushandiswa sechinhu chakakosha mukugadzirwa kwe-high-temperature vulcanized silicone. rubber (HTV) kuwedzera kusimba uye kuoma kwesilicone rabha. Mukugadzirwa kwemvura silicone rabha, vinyl silicone oiri zvakare ndiyo huru mbishi yejekiseni inoumba silicone rabha, yemagetsi glue, uye thermal conductive rabha.
3. Kushandiswa kwevinyl silicone mafuta
1. Base material ye-high-temperature vulcanized silicone rabha (HTV):
Vinyl silicone oiri inosanganiswa ne crosslinkers, reinforcing agents, colorants, structure control agents, anti-aging agents, etc., uye inoshandiswa kugadzirira high-temperature vulcanized silicone rubber raw raw. Iyi silicone rabha ine kugadzikana kwakanaka uye kusimba munzvimbo dzepamusoro-tembiricha, uye inoshandiswa zvakanyanya muzviitiko zvakasiyana izvo zvinoda kupikisa kwekushisa kwepamusoro uye kusagadzikana kwekuora.
2. Zvinhu zvikuru zvemvura silicone rabha:
Vinyl silicone mafuta inogona kushandiswa pamwe chete nehydrogen-ine crosslinkers, platinum catalysts, inhibitors, nezvimwewo, kugadzirira additive liquid silicone rabha. Iyi silicone rabha ine mvura yakanaka, kuumbwa uye elasticity, uye inoshandiswa zvakanyanya muindasitiri yesilicone, machira, mafirimu ekudzivirira uye mamwe minda.
3. Kugadzirira kwezvinhu zvitsva:
Vinyl silicone oiri inopindirana neyakasiyana organic zvinhu zvakaita se polyurethane uye acrylic asidhi kugadzirira zvinhu zvitsva nekuita zvirinani. Zvishandiso zvitsva izvi zvine hunhu hwekuramba mamiriro ekunze, kuramba kuchembera, ultraviolet kuramba, uye kusimba kwakawedzera, uye zvinoshandiswa zvakanyanya mumachira, zvinonamira, zvekuisa chisimbiso nezvimwe minda.
4. Zvikumbiro mumunda wemagetsi:
Vinyl silicone oiri inoshandiswa zvakanyanya mumagetsi anonamira, thermally conductive adhesives, LED marambi anonamira, LED kurongedza uye yemagetsi chikamu chehari. Inopa basa rakakwana rekuisa chisimbiso kuchengetedza zvakanyanya kusimba zvemagetsi zvikamu uye zvikamu kubva kune kunze kusvibiswa kana kufamba, kuve nechokwadi kugadzikana uye kuvimbika kwemidziyo yemagetsi.
5. Iyo huru yezvigadzirwa zvemumiriri wekuburitsa:
Mumiriri wekuburitsa anoita basa mukudzivirira kunamatira mukugadzirwa kwemaindasitiri, izvo zvinobatsira mukuburitswa kwezvigadzirwa uye nekuvandudza kwekuita kwekugadzira.
4. Vinyl silicone mafuta emusika wekuvandudza maitiro
1.Kuwedzera kwendima yekushandisa
Vinyl silicone fluids haingoshandiswi zvakanyanya mumakemikari echinyakare, mishonga, zvemagetsi uye mamwe minda, asi inoitawo basa rakakosha muzvizoro uye zvigadzirwa zvekuchengeta munhu, mafuta ekuzora, anotakura mafuta, zvisimbiso, ingi, mapurasitiki uye rabha. Kunyanya mumunda wezvizoro, vinyl silicone oiri inoshandiswa zvakanyanya mukugadzira sipo, shampoos, moisturizers, lotions, maconditioners uye zvimwe zvigadzirwa nekuda kwekunaka kwayo uye kupenya.
2.New inoshanda vinyl silicone mafuta
Vagadziri vanogona kugadzira huwandu hwakakura hweanoshanda vinyl silicone zvinwiwa nekuramba vachivandudza fomula uye nekugadzirisa maitiro ekugadzira kuvandudza viscosity, fluidity, kugadzikana uye zvimwe zvimiro zvevinyl silicone oiri. Zvakadai serenje-kurapa, cationic-kurapa, biocompatible, nezvimwe, yakakodzera kune yakafara mhando yezvishandiso.
3.Vinyl silicone mafuta akasvibirira kugadzirira
Nekuwedzeredzwa kwekuziva kwezvakatipoteredza, kuvandudzwa kwemaitiro matsva ane hushamwari kwezvakatipoteredza ekugadzirwa kwegirinhi kwevinyl silicone oiri, sekushandiswa kwema biodegradable monomers, yakasimba catalysts, ionic zvinwiwa, nezvimwewo, kuderedza kushandiswa kwechepfu zvinonyungudutsa uye ne- zvigadzirwa, uye kuwana budiriro inoenderera.
4.Nano vinyl silicone mafuta zvinhu
Dhizaini uye synthesis yevinyl silicone oiri zvinhu zvine akakosha nanostructures, senge vinyl silicone mafuta nanoparticles, nanofibers uye molecular mabhurashi, nezvimwewo, kupa izvo zvigadzirwa zvine yakasarudzika mhedzisiro uye interface zvimiro, uye kuvhura minda mitsva yekushandisa.
5.Packaging, kuchengetedza uye kutakura
Ichi chigadzirwa imakemikari anoshanda, uye haafanire kusanganiswa netsvina (kunyanya catalysts) panguva yekuchengetedza uye yekufambisa, uye inofanirwa kudzivirirwa kubva pakubata nezvinhu zvinogona kukonzeresa kuita kwayo kemikari, senge acids, alkalis, oxidants, nezvimwe. kudzivirira denaturation, uye kuchengetwa munzvimbo inotonhorera uye yakaoma. Ichi chigadzirwa hachisi chinhu chine njodzi uye chinogona kutakurwa zvichienderana nemamiriro ezvinhu ezvimwe zvinhu.
Nguva yekutumira: Jul-05-2024