Intshayelelo kwiipropati ezahlukeneyo eziqhelekileyo ze-PP engalukwanga ilaphu
1Uzinzile ngokukodwa emanzini, kwaye izinga lokufunxa kwamanzi emanzini li-0.01% kuphela emva kwe-14h.Ubunzima be-molecular malunga ne-80,000 ~ 150,000, kunye nokwakheka kakuhle.Nangona kunjalo, ngenxa yokuncipha okukhulu, iimveliso zodonga lokuqala zilula ukugrumba, kwaye umphezulu weemveliso uyakhazimla kwaye kulula ukuwubala.
(2) Iimpawu zeMechanical: I-PP engalukiweyo ilaphu ine-crystallinity ephezulu kunye nesakhiwo esiqhelekileyo, ngoko ineempawu ezibalaseleyo zoomatshini.Amandla ayo, ubunzima kunye nokuqina kwayo kuphezulu kune-PE (HDPE) ephezulu.Isici esibalaseleyo kukugoba ukumelana nokukhathala (7 × 10 ^ 7) Ukuvula kunye nokuvala okwesibini kugobile ngaphandle komonakalo, kwaye i-coefficient yokudibanisa eyomileyo ifana ne-nylon, kodwa iphantsi kwe-nylon phantsi kwe-lubrication yeoli.
(3) Ukusebenza kwe-Thermal: Ilaphu le-PP elingalukiweyo linokumelana nobushushu, indawo yokunyibilika yi-164 ~ 170 ℃, kwaye iimveliso zinokuvalwa kwiqondo lobushushu elingaphezulu kwe-100 ℃.Ngaphantsi kwesenzo sokungabikho kwamandla angaphandle, ayiyi kuguqulwa kwi-150 ℃.Ubushushu be-embrittlement yi-35 ℃, eya kwenzeka ngaphantsi kwe-35 ℃, kwaye ukuxhathisa ubushushu akulunganga njenge-PE.
(4) Uzinzo lweMichiza: Ilaphu le-PP elingalukiweyo linozinzo oluhle lweekhemikhali.Ukongeza kokukhukuliseka nge-asidi, izinzile kwezinye ii-reagents zemichiza.Nangona kunjalo, i-molecular weight low aliphatic hydrocarbons, i-aromatic hydrocarbons, njl.Ke ngoko, ilaphu lePP elingalukwanga lilungele ukwenza imibhobho yeekhemikhali zaseRussia kunye nesiTshayina kunye nezixhobo, ezinempembelelo entle yokuchasana nokubola.
5Ngenxa yokuba phantse ayifunxa amanzi, ukusebenza kwe-insulation akuchatshazelwa kukufuma.Ine-coefficient ephezulu ye-dielectric.Ngokunyuka kwamaqondo obushushu, ingasetyenziselwa ukwenza iimveliso zokugquma umbane ezishushu.I-voltage yokuqhawula iphezulu kakhulu, kwaye ifanelekile kwizixhobo zombane.Ukumelana nombane olungileyo kunye nokuchasana kwe-arc, kodwa umbane ophezulu we-static, kulula ukuguga xa uqhagamshelana nobhedu.
(6) Ukumelana nemozulu: amalaphu angalukwanga achukumiseke kakhulu ekukhanyeni kwe-ultraviolet, kwaye ukumelana nokuguga kunokuphuculwa ngokudibanisa i-zinc oxide thiopropionic acid lauryl ester, i-carbon black efana ne-milky white filler, njl.
NguJacky Chen
Ixesha lokuposa: Dec-06-2022
