Qhov zoo
1. Qhov hnyav tsawg dua ua rau lawv sib dua.
2. Cov ntaub ntawv rwb thaiv cua sov thiab suab zoo tshaj plaws.
3. Zoo dua tiv taus tshuaj lom neeg.
4. Lawv tsis oxidize lossis corrode thiab tsis muaj dej.
5. Vim nws qhov tsis sib xws sab hauv, qhov poob ntawm qhov thauj khoom yog me me.
6. Nws tsis ntxiv cov hlau oxides rau hauv dej.
7. Muaj zog tiv taus kev cuam tshuam thiab kev kub siab, vim tias lawv tuaj yeem ua kom ntev dua ua ntej tawg.
Kev Taw Qhia Txog Khoom
PPSU yog ib hom yas thermal uas tsis muaj zog uas muaj pob tshab thiab ruaj khov hydrolytic siab. Cov khoom no yuav raug rau kev siv dej ntau zaus. Thiab ua ib yam khoom uas tiv taus kub zoo heev, qhov kub thiab txias tiv taus kub yog siab txog 207 degrees. Vim yog qhov kub siab dua, kev siv dej ntau zaus. Nws muaj kev tiv taus tshuaj zoo heev thiab tiv taus kua qaub thiab alkali, tuaj yeem tiv taus cov tshuaj kua thiab cov tshuaj ntxuav tes, yuav tsis tsim cov tshuaj hloov pauv. Lub teeb yuag, tiv taus kev poob, nws yog qhov zoo tshaj plaws hauv kev nyab xeeb, tiv taus kub, tiv taus hydrolysis thiab tiv taus kev cuam tshuam.
Cov khoom sib txuas ntawm cov yeeb nkab uas ua los ntawm cov khoom PPSU tuaj yeem tiv taus kev cuam tshuam thiab cov tshuaj lom neeg yam tsis muaj kev puas tsuaj. Cov khoom siv yeeb nkab PPSU yooj yim rau kev teeb tsa, yooj yim rau kev teeb tsa, kev sib khi zoo meej, xyuas kom muaj kev sib txuas mus ntev, thiab ua tiav qhov nyiaj tau ntau tshaj plaws, yog li txo cov nqi zog ua haujlwm. Cov khoom sib txuas no tsis muaj ntxhiab thiab tsis muaj saj, tsim nyog rau dej haus.