為使FUCHEM高性能樹脂獲得最佳的耐熱性和耐腐蝕性，如接觸食品、強(qiáng)腐蝕性環(huán)境的FRP，后固化是十分必要的。推薦的后固化條件是90~100℃，3~6小時(shí)——對(duì)于厚制品和形狀比較復(fù)雜的制品，后固化時(shí)間需要更長(zhǎng)。比較低的后固化溫度是沒有效果的，一般可以通過(guò)干熱空氣或加熱器進(jìn)行加溫，同時(shí)可以用油布包覆以提高效果。但過(guò)高的溫度會(huì)導(dǎo)致脆裂，應(yīng)防止局部過(guò)熱。在制品制作完畢后，后固化處理應(yīng)盡快進(jìn)行以提高效率。(The performance of composite can be enhanced by post curing the finished component at elevated temperatures, especially for these used in aggressive environments or for contact with food. For maximum effectiveness, post curing at 90-100℃ should be performed 3-6 hours as soon as possible after the composite has gelled and its exotherm has subsided. For large components, post curing should be practised as soon at the composite structure is completed. This post curing should be done with hot dry air or heater, yet hot spots should be avoided, a good technique for improving heating efficiency is to cover the post curing vessel or laminate with a tarpaulin.)

上一篇:外涂層（TopCoating）工藝要點(diǎn)

下一篇:固化系統(tǒng)（CuringSystem）要點(diǎn)

滬公網(wǎng)安備31010402001851號(hào)

備案號(hào)：滬ICP備05014835號(hào)-4

?2021 上海富晨新材料有限公司版權(quán)所有

滬（松）應(yīng)急管危經(jīng)許【2022】201354

選擇區(qū)號(hào)

后固化(PostCuring)的必要性

分享到微信