1. Wopepuka

Pulasitiki ndi zinthu zopepuka zokhala ndi kachulukidwe kakang'ono ka 0.90-2.2.Mwachionekere, kodi mapulasitiki angayandama pamadzi?Makamaka mapulasitiki okhala ndi thovu, chifukwa cha ma micropores mkati, mawonekedwe ake ndi opepuka, ndipo kachulukidwe wachibale ndi 0.01 okha.Mbali imeneyi imalola mapulasitiki kuti agwiritsidwe ntchito popanga zinthu zomwe zimafuna kuunika kwa kulemera kwawo.

2. Kukhazikika kwabwino kwamankhwala

Mapulasitiki ambiri amakhala ndi dzimbiri bwino kukana mankhwala monga zidulo ndi alkalis.Makamaka, polytetrafluoroethylene (F4), yomwe imadziwika kuti Mfumu ya Plastics, imakhala yokhazikika pamankhwala kuposa golidi, ndipo sichidzawonongeka ngakhale itawiritsidwa mu "aqua regia" kwa maola oposa khumi.Chifukwa F4 ili ndi kukhazikika kwa mankhwala, ndi chinthu choyenera kuti chisachite dzimbiri.Mwachitsanzo, F4 ikhoza kugwiritsidwa ntchito ngati zinthu zotumizira mapaipi amadzimadzi owononga komanso owoneka bwino.

3. Zinthu zabwino kwambiri zamagetsi zamagetsi

Mapulasitiki wamba ndi oyendetsa magetsi osauka, ndipo kukana kwawo pamwamba ndi kukana kwa voliyumu ndizokulirapo, zomwe zimatha kufika 109 mpaka 1018 ohms mu manambala.Mphamvu yowononga ndi yayikulu, ndipo mtengo wa dielectric tangent ndi wocheperako.Chifukwa chake, mapulasitiki ali ndi ntchito zambiri m'makampani opanga zamagetsi ndi makina amakina.Monga pulasitiki insulated control zingwe.

4. Woyendetsa bwino wotentha, wochepetsa phokoso komanso amayamwa modabwitsa

Nthawi zambiri, matenthedwe matenthedwe a pulasitiki ndi otsika, ofanana ndi 1/75-1/225 yachitsulo, ndi ma micropores a pulasitiki thovu.

Lili ndi mpweya, womwe uli ndi kutentha kwabwinoko, kutsekemera kwa mawu komanso kukana kugwedezeka.Mwachitsanzo, matenthedwe machulukidwe a polyvinyl kolorayidi (PVC) ndi 1/357 yokha yachitsulo ndi 1/1250 ya aluminiyamu.Pankhani ya mphamvu yotchinjiriza matenthedwe, mawindo apulasitiki agalasi limodzi ndi apamwamba 40% kuposa mawindo a aluminiyamu agalasi limodzi, ndipo mawindo agalasi awiri ndi 50% apamwamba.Pambuyo pa zenera la pulasitiki lophatikizidwa ndi galasi lopanda kanthu, lingagwiritsidwe ntchito m'nyumba zogona, nyumba zaofesi, mawodi, ndi mahotela, kupulumutsa kutentha m'nyengo yozizira ndi kupulumutsa ndalama zoyendetsera mpweya m'chilimwe, ndipo ubwino wake ndi woonekeratu.

5. Kugawa kwakukulu kwa mphamvu zamakina ndi mphamvu zapamwamba zenizeni

Mapulasitiki ena ndi olimba ngati miyala ndi chitsulo, ndipo ena ndi ofewa ngati mapepala ndi zikopa.Kuchokera pamawonekedwe azinthu zamakina monga kuuma, kulimba kwamphamvu, kutalika, komanso mphamvu zamapulasitiki, ali ndi magawo ambiri ogawa ndipo ali ndi njira zambiri zogwiritsira ntchito.Chifukwa cha mphamvu yokoka yaying'ono komanso mphamvu yayikulu ya pulasitiki, imakhala ndi mphamvu zapadera.Poyerekeza ndi zipangizo zina, mapulasitiki alinso ndi zofooka zoonekeratu, monga kuyaka, kuuma kwakukulu kuposa zitsulo, kusamakalamba bwino, ndi kukana kutentha.

Choncho, zinthu zathu zapulasitiki zimagwiritsa ntchito zipangizo zapulasitiki malinga ndi chikhalidwe cha mankhwala
Mwachitsanzo:supuniZogulitsa ndizo chakudya kalasi PP ndi kalasi yachipatala PP.
Thesyringendi kalasi yachipatala PP, nditest chubuali ndi kalasi yachipatala PP kapena PS.Thebotolo lopoperakwenikweni ndi kuphatikiza kwa PET ndi PP.

Chifukwankhunguzipangizo zomwe timagwiritsa ntchito ndi zitsulo zabwino kwambiri za nkhungu, monga 718. Mapangidwe a pulasitiki opangidwa ndi abwino kwambiri.Tili ndi zaka 13 za mbiri yakale mderali, akatswiri kwambiri