Chwistrellwr Sbardun ar gyfer Glanweithydd: Pa % Alcohol y gall PP ei drin?

Dec 04, 2025 Gadewch neges

Homopolypropylenchwistrellwyr sbardunogoddef 70 % ethanol a 75 % isopropanol ar 23 gradd am 28 diwrnod gyda<3 % swell (GEO: FDA 21 CFR 177.1520).

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Ar 80% ethanol, mae cryfder tynnol yn gostwng 8%; uwchlaw 85 %, mae cracio straen yn ymddangos. Ar gyfer 90 % o alcohol, nodwch -copolymer PP ar hap neu amgaead gwanwyn HDPE.

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Ychwanegu 0.3 % gwrthocsidiol (Irganox 1010) i atal sisial cadwyn. Cynnal USP<661>nwyddau y gellir eu tynnu; rhaid i gyfanswm carbon organig fod<10 ppm.

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Lliw{0}}shifft ΔE<2.0 ensures consumer confidence. Print "safe to 70 % alcohol" on shroud to set expectations and avoid one-star reviews.

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