Bakelite - kodi zinthu izi, kodi katundu wake?

Bakelite - ndichiyani? Zakuthupi za mtundu wina wamkulu wa mapulasitiki anayamba ndi anthu. Iwo akamagwira condensing phenols ndi resins formaldehyde, pamaso pa soda. Kunja, nkhani Mwina amafanana Amber, labala zovuta, yokhuthala ndipo ngakhale njovu.

Kutulukira Bakelite

Bakelite - kodi zinthu izi? Lingaliro la kukhala ndi heavy-ntchito, si flammable pulasitiki anafika zatsopano Belgium Leo Bakelandu kumbuyo mu 1909. Kwa nthawi yaitali nkhani ya Mzimu inagwiritsidwa ntchito yekha zosoŵa za m'madera mafakitale. Kenako, kuwala kulemera ndi mphamvu kwambiri ya Bakelite anatumikira katundu monga kwambiri kwa akatswiri mu kupanga zodzikongoletsera yotchipa.

Special ankafuna zinthu poyamba sanagwiritse ntchito. Only mu 40s Mu zaka zapitazo chifukwa patsogolo kwambiri wa mtundu phale, Bakelite anayamba kukopa chidwi cha makampani ambiri amene amakhazikika mu kupanga zodzikongoletsera zosiyanasiyana Chalk banja.

Nkhondo itatha, kufunika anakana pang'ono mu Bakelite. A yoweyula watsopano kutchuka kwa zinthu anabwera 80s, pamene ulemerero wa bakelite analinso mu ankafuna, makamaka chifukwa okonza American. Makamaka, gulu lalikulu la Bakelite zodzikongoletsera anali ndi wojambula wotchuka ndi filmmaker Endi Uorhola, pambuyo pa imfa ya omwe mankhwala zakhala zikugulitsidwa pa yobetcherana kwa mbiri Uwerenge pa nthawi.

Lero, chidwi Bakelite monga mphamvu yapamwamba, opepuka kwambiri ndi ulusi textured akadali mokwanira mkulu Komabe, monga mtengo wake.

Kodi kubala Bakelite

A chisakanizo cha formalin ndi phenols mu pamaso pa soda kapena asidi chothandizira ndipamene bakelite. Ndi chiyani icho? Ponena za formalin, ndiye anawakonzera makutidwe ndi okosijeni wa methanol pa kutentha 650 ° ^C pansi pamaso pa chothandizira mu mawonekedwe a siliva. Wina chigawo Bakelite - phenol yopangidwa kuchokera ku matabwa, lignite peat mankhwala a mafuta kuyenga.

Zosakaniza Bakelite anazitsanulira mwa njira yapadera, ndi mkangano 80 ^C. The mankhwala yaiwisi "Bakelite A" pa firiji ali ndi katundu ofanana rosin.

Kupewa mapangidwe thovu ndi cavities mu kapangidwe ka Bakelite zakuthupi polymerized pa msinkhu okwera kuthamanga pafupifupi 8 atmospheres. Pamene polymerization Bakelite mu muli womata anzawo chofunika zimatheka palokha.

Bakelite - katundu zakuthupi

Bakelite ndi cholimba, chuma okhwima kuti amakhala infusible, mawonekedwe insoluble mchikakamizo cha Kutentha yaitali. Zofunika bwino sungunuka mowa. Choncho, katundu uyu ali bwinobwino ntchito yopanga lacquers bakelite.

Mabukuwa ali cholimba ❖ kuyanika. Bakelite ndi wochititsa kwambiri kutentha ndi padziko chimatsutsana kumva kuwawa ndi anzawo. Machining wa Bakelite angathe kukhala pa lathe a.

Mwazina, zinthu ali kukana mkulu mankhwala onyeketsa. Kuchotserapo pokhapokha anaikira njira asidi nitric acid sulfuric.

Mwachibadwa, ngati zinthu zina iliyonse, ali ndi zovuta zake ndi bakelite. Ndi chiyani icho? Choyamba, tiyenera kulingalira kachulukidwe ndi kuchuluka brittleness zakuthupi. Zinthu pamaziko a analandira chachikulu Bakelite. Choncho, nkhani ndi zosafunika kwathunthu kwa kupanga zipolopolo za zamagetsi zamakono.

Pa nthawi yomweyo, Bakelite zoipa chifukwa kukhalapo mu zikuchokera formaldehyde ndi zina zambiri zigawo zikuluzikulu poizoni. Pa mfundo imeneyi, n'zotheka ntchito mfundo za Boma ena mafakitale kukhala zochepa.

Kodi kusiyanitsa lenileni kuchokera Bakelite yabodza?

Bakelite - ndichiyani? Choyamba, nkhani amakhala ndi katundu wapatali monga weathering kukana, asidi kwambiri dielectric, ndi yosavuta ntchito umakaniko.

Ngakhale gawo lonse la kutchulidwa katundu chosiyana cha chuma, nthawi zambiri, pali fakes. Komabe, pali njira zambiri zotsimikizika kuti amakulolani kusiyanitsa za mtundu wa pulasitiki ku yabodza ndi:

1. Processing kumbuyo pamwamba Bakelite banja zotsukira kwenikweni kumabweretsa zosayembekezereka wa patina noticeable ngati banga chikasu.
2. Mmene madzi bakelite otentha amachititsa achilendo fungo, kukoma pang'ono amatikumbutsa camphor.

Ndipotu, kupanga Bakelite yabodza ndi wosavuta. Ngati pali yeniyeni ya mankhwala chuma m'nyanjazi onyenga angathe kukhala kunyumba. Nthawi zambiri, chabe pamene kuyezetsa komanso pafupi-mmwamba, kufufuza mozama zimaonekeratu kuti nkhaniyo si yolondola.

zokongoletsera zotsimikizira Bakelite

Kodi Bakelite zoipa? Nkhanizi apatsidwa amisiri ochuluka kuposa amene asankha kuchita kupanga zibangili. Pa nthawi ya maonekedwe a chuma, chitetezo cha ntchito zake zikubweretsa kukayikira. Panopa Komabe, zikuchokera Bakelite wopanda poizoni, zingakhale zinthu zoipa. N'chifukwa chake lero ndi yapamwamba ntchito chimango ichi kwa kupanga zibangili.

Pali mfiti za ntchito yopanga zipangizo zodzikongoletsera bakelite chipolopolo akale. Kawirikawiri, mwa njira iyi kupanga amagulira zokongoletsa anachenjeza za chiyambi chake.

Mtengo wa mankhwala a Bakelite

Ngati ife kulankhula za mtengo wa Bakelite zodzikongoletsera, ndiye izo zimatengera zovuta za ulimi wa malonda, mtengo deta ndi ulamuliro wa Mlengi. Kawirikawiri, bakelite zodzikongoletsera wakuda, wobiriwira, mitundu Iris mugule pa otsika mtengo.