Kodi rabara ya silikoni ya Dose imachokera kuti?

 

Kuti timvetse njira zambiri zomwe rabara ya silicone ingagwiritsidwire ntchito, ndikofunikira kuzindikira komwe idachokera. Mu blog iyi, tikuwona komwe silicone imachokera kuti timvetse bwino za mawonekedwe ake.

 

Kumvetsetsa mitundu yosiyanasiyana ya rabala

Kuti mumvetse bwino kuti silicone ndi chiyani, choyamba muyenera kudziwa mitundu yosiyanasiyana ya rabara yomwe ilipo. Mu mawonekedwe ake oyera, rabara yachilengedwe imadziwika kwambiri ngati latex ndipo kwenikweni imachokera mwachindunji ku mtengo wa rabara. Mitengo iyi idapezeka koyamba ku South America ndipo kugwiritsa ntchito rabara mkati mwake kunayamba ku chikhalidwe cha Olmec (Olmec kwenikweni amatanthauza "Anthu a Rabara"!).

Choncho chilichonse chomwe sichinapangidwe kuchokera ku rabara yachilengedwe imeneyi chimapangidwa ndi munthu ndipo chimadziwika kuti ndi chopangidwa ndi anthu.

Chinthu chatsopano chopangidwa posakaniza zinthu zosiyanasiyana chimatchedwa polymer yopangidwa. Ngati polymeryo ikuwonetsa mphamvu zotanuka, imadziwika kuti ndi elastomer.

 

Kodi silicone imapangidwa ndi chiyani?

Silicone imadziwika kuti ndi elastomer yopangidwa chifukwa ndi polima yomwe imawonetsa kukhuthala - kutanthauza kuti imasonyeza kukhuthala komanso kusinthasintha. Anthu ambiri amatcha izi kukhala mphira.

Silicone yokha imapangidwa ndi kaboni, haidrojeni, mpweya ndi silicon. Dziwani kuti chosakaniza chomwe chili mu silicone chimalembedwa mosiyana. Chosakaniza cha silicon chimachokera ku silica yomwe imachokera ku mchenga. Njira yopangira silicon ndi yovuta ndipo imakhala ndi magawo ambiri. Njira yovutayi imathandizira kuti rabara ya silicone ikhale yokwera mtengo kwambiri poyerekeza ndi rabara yachilengedwe.

Njira yopangira silicone imaphatikizapo kuchotsa silicon kuchokera ku silica ndikuyidutsa mu ma hydrocarbons. Kenako imasakanizidwa ndi mankhwala ena kuti apange silicone.

 

Kodi rabala ya silicone imapangidwa bwanji?

Rabala ya silikoni ndi kuphatikiza kwa msana wa Si-O wosapangidwa ndi zinthu zachilengedwe, wokhala ndi magulu ogwira ntchito zachilengedwe. Chigwirizano cha silicon-oxygen chimapatsa silikoni kukana kutentha kwambiri komanso kusinthasintha kwake pa kutentha kosiyanasiyana.

Polima ya silikoni imasakanizidwa ndi zodzaza zowonjezera ndi zothandizira kukonza kuti apange chingamu cholimba, chomwe chimatha kulumikizidwa pa kutentha kwakukulu pogwiritsa ntchito peroxides kapena polyaddition curing. Silikoni ikalumikizidwa imakhala chinthu cholimba, chosalala.

Pano ku Silicone Engineering, zinthu zathu zonse za silicone zimakonzedwa pogwiritsa ntchito kutentha komwe kumagawa zinthu zathu za silicone kukhala HTV silicone kapena High Temperature Vulcanised. Mitundu yonse ya silicone yathu imapangidwa, kusakanikirana ndikupangidwa pamalo athu okwana 55,000-sq. ft. ku Blackburn, Lancashire. Izi zikutanthauza kuti tili ndi kutsata kwathunthu komanso udindo pa njira yopangira ndipo titha kuwonetsetsa kuti pali miyezo yapamwamba kwambiri yoyendetsera bwino zinthu. Pakadali pano timakonza matani opitilira 2000 a rabara ya silicone chaka chilichonse zomwe zimatithandiza kukhala opikisana kwambiri pamsika wa silicone.

 

Kodi ubwino wogwiritsa ntchito silicone rabara ndi wotani?

Njira yopangira ndi kapangidwe ka zinthu za rabara ya silicone zimapangitsa kuti ikhale yosinthasintha kwambiri, zomwe zimapangitsa kuti ikhale yotchuka kwambiri pa ntchito zambiri. Imatha kupirira kusinthasintha kwakukulu kwa kutentha kuyambira -60°C mpaka 300°C.

Ilinso ndi kukana kwabwino kwa chilengedwe kuchokera ku Ozone, UV ndi mavuto ena onse a nyengo zomwe zimapangitsa kuti ikhale yoyenera kutseka panja komanso kuteteza zida zamagetsi monga magetsi ndi zotchingira. Siponji ya silicone ndi chinthu chopepuka komanso chogwiritsidwa ntchito mosiyanasiyana chomwe chimapangitsa kuti ikhale yoyenera kuchepetsa kugwedezeka, kukhazikika kwa malo olumikizirana komanso kuchepetsa phokoso mkati mwa ntchito zoyendera anthu ambiri - zomwe zimapangitsa kuti ikhale yotchuka kugwiritsidwa ntchito m'malo monga sitima ndi ndege komwe kutonthoza makasitomala kumathandizidwa ndi kugwiritsa ntchito rabara ya silicone.

Iyi ndi chidule chachidule cha chiyambi cha rabala ya silicone. Komabe, ku JWT Rubber tikumvetsa kufunika koti mumvetse chilichonse chokhudza chinthu chomwe mukugula. Ngati mukufuna kudziwa zambiri kuti mumvetse momwe rabala ya silicone ingagwirire ntchito mumakampani anu, titumizireni uthenga lero.