Opanga a simenti sapenga amasanthula magwiridwe antchito wamba a matumba a pulasitiki
1, kulemera kowala
Plastics nthawi zambiri zimakhala zopepuka, ndipo kuchuluka kwa pulasitiki kuli pafupi 0, 9-0, 98 g / cm3. Nthawi zambiri amagwiritsidwa ntchito polypropylene. Ngati palibe filler imawonjezeredwa, ndikofanana ndi kachulukidwe ka polypropylene. Kuchulukitsa kwa polypropylene kuti mugwiritse ntchito pulasitiki kokwanira ndi 0, 9-0, 91 magalamu pa cubimeter ya cubimeter. Ma saits nthawi zambiri amakhala opepuka kuposa madzi. Mphamvu yowonongeka kwambiri yamoto ndi mtundu wa mphamvu zosinthika komanso zokutira zowonongeka mu pulasitiki, zomwe zimakhudzana ndi kapangidwe kake, ma crystallity, ndi zojambula. Zimagwirizananso ndi mtundu wa zowonjezera. Ngati mphamvu inayake (mphamvu / yapadera) imagwiritsidwa ntchito kuyeza kuluka pulasitiki, ndikokwera kuposa kapena pafupi ndi zitsulo ndipo ili ndi mankhwala abwino.
2, Mapulasitiki Olimbana ndi Ogwiritsa
Zochita zolengedwa zili ndi chidindo chabwino chotsutsana ndi madigiri 110 Celsius ndipo alibe mphamvu kwa nthawi yayitali. Imakhala ndi bata yolimba yamagetsi yothetsera, mafuta, ndi zina zambiri pomwe matenthedwe amatuluka, kaboni tetrachloride, xlene, turperpen, experc. amatha kutupa. Fufuzani Nitric acid, fumu hufunguc acid, zinthu zina ndi ma oxines ena amphamvu zimaxizinye, ndipo zimatsutsana ndi ma acid alkalis ndi acid.
3, kukana kwabwino kwa Abrasion
Zogwirizana mwa mikangano pakati pa polypropyylene pulasitiki yoyera ndi yaying'ono, pafupifupi 0 kapena 12, yomwe ndi yofanana ndi nylon. Kufikira pamlingo winawake, mikangano pakati pa pulasitiki yama pulasitiki komanso zinthu zina zimakhala ndi zopaka.
4, kutchinjiriza kwabwino
Kuwala koyera kwa polypropylene ndi njira yamagetsi yabwino kwambiri. Chifukwa sichimayamwa chinyezi ndipo sichikhudzidwa ndi chinyezi mlengalenga, kuwonongeka kwa matope kudzakhalanso kumwamba. Diectric yake nthawi zonse ndi 2, 2-2, ndipo kuchuluka kwake kutsutsana ndi kwakukulu kwambiri. Kutupa kwabwino kufooka sikutanthauza kugwiritsa ntchito. Kugwiritsa ntchito zida zothandizira.
5. Kukaniza kwachilengedwe
Kutentha kwa chipinda, nsalu yolumikizidwa ndi pulasitiki imamasulidwa kwathunthu kuchokera ku chinyezi mkati mwa maola 24 ndizochepera 0, 01%, ndipo kulowetsedwa kwamadzi kumakhala kotsika kwambiri. Kutentha kochepa, kumakhala bwinja komanso brittle. Kuwala pulasitiki sikungafanane.
6. Kusakanikirana kosavuta
Kulimbana ndi pulasitiki kukana pulasitiki kumakhala osauka, makamaka polypropylene kuluka ndi otsika kuposa kuluka polyethylene. Zifukwa zazikulu za ukalamba zimatentha ukalamba komanso kujambula. Kutha kwa okana kufooka kwa pulasitiki ndi chimodzi mwa zolakwa zake zazikulu, zomwe zimakhudza moyo wake ndi madera ogwiritsira ntchito.