Nrog rau kev txhim kho tas mus li thiab ua tiav ntawm ntau yam kev ua tiav, cov ntaub ntawv polymer tau ua rau ntau yam khoom thiab siv ntau yam.Serological pipettesyog cov khoom siv pov tseg pov tseg siv los ntsuas kom raug lossis hloov cov kua dej.Lawv feem ntau yog ua los ntawm polystyrene (PS).PS yog cov xim tsis muaj xim thiab pob tshab nrog cov yam ntxwv hauv qab no:

1. Cov khoom siv kho tshuab: PS yog cov khoom siv tawv thiab nkig nrog me me ductility thiab tsis muaj yielding thaum ncab.Cov khoom siv kho tshuab ntawm polystyrene muaj feem xyuam rau txoj kev sib xyaw ua ke, qhov sib txheeb molecular loj, qhov kub thiab txias, cov ntsiab lus impurity thiab cov qauv ntsuas.

2. Cov khoom siv cua sov: PS muaj cov cua sov tsis zoo, nrog rau qhov kub ntawm qhov kub ntawm 70 txog 95 ° C thiab siv lub sijhawm ntev ntawm 60 txog 80 ° C.Yog li ntawd,serological pipettestsis tuaj yeem ua kom tsis muaj menyuam los ntawm qhov kub thiab txias, thiab kev ua kom tsis muaj hluav taws xob feem ntau yog xaiv.Lub thermal conductivity ntawm polystyrene yog tsawg, txog 0.10 ~ 0.13W / (m·K), thiab nws yeej tsis hloov nrog kub hloov.Nws yog cov khoom siv thermal rwb thaiv tsev zoo.

3. Cov khoom siv hluav taws xob: PS yog cov khoom siv tsis yog-polar, thiab ob peb cov khoom ntxiv thiab cov khoom ntxiv tau ntxiv thaum siv.Yog li ntawd, nws muaj zoo dielectric zog thiab rwb thaiv tsev, thiab nws cov khoom dielectric tsis muaj dab tsi ua nrog zaus.

4. Cov khoom siv tshuaj: PS muaj cov tshuaj lom neeg zoo thiab tuaj yeem tiv taus ntau yam alkali, cov kua qaub, ntsev, ntxhia roj, qis cawv thiab ntau yam organic acids.

Cov saum toj no yog ib co yam ntxwv ntawm cov khoom ntawm lubserological pipettes.Kev ruaj ntseg zoo tshuaj xyuas kom meej tias cov tshuaj thiab cov raj yuav tsis hnov ​​​​mob, yog li ua kom qhov tseeb ntawm qhov kev sim.

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