相關標簽:美國Oxford POM、美國杜邦 POM、馬來西亞寶理 POM塑料膠粒、導電 POM、通用 POM、吹塑級 POM塑料膠粒
pom注塑產品要泡水嗎?
為了加快冷卻速度,不需要薄壁零件。如果在模具中成型出壁厚較厚的零件,則表面溫度會先下降,內部實際上會熔化。如果緩慢冷卻,內部會收縮并使表面塌陷,形成嚴重的收縮。要解決由于內部熔體冷卻引起的收縮問題,最好的方法是讓外部形狀,內部收縮率形成的孔不影響外觀,然后加快外表面的冷卻,可以立即浸入水中冷卻表面后,內部收縮一直歸因于外觀硬化不會形成向內塌陷的收縮痕跡。 。以上文獻若需轉載請備注出處:PBT樹脂 //shanglikaiguan.cn/
其它 其它 其它 | |
性能項目 | 試驗條件[狀態] | 測試方法 | 測試數據 | |
密度 | ISO 1183 | 1.29 | g/cm | |
吸水率 | 23℃and50%RH | ISO 62 | 0.3 | % |
吸水率 | 飽和23℃ | ISO 62 | 0.8 | % |
熔融指數 | 16cm | ISO 1133 | 20.64 | g/10min |
球壓痕硬度 | 30秒數值 | ISO 2039 part 1 | 35 | MPa |
拉伸模量 | 1mm/min | ISO 527 part 1/2 | 900 | MPa |
彎曲模量 | ISO 178 | 800 | MPa | |
Charpy缺口沖擊強度 | -30℃ | ISO 179 1eA | 0.9 | J/cm |
Charpy缺口沖擊強度 | 低溫23℃ | ISO 179 1eA | 1.20 | J/cm |
滲透率 | deformation damage, 60x60x3mm | ISO 6603, part 2 | 15 | mm |
拉伸蠕變模量 | 1 hour | ISO 899 part 1 | 700 | MPa |
拉伸蠕變模量 | 1000 hours | ISO 899 part 1 | 400 | MPa |
介電常數 | 1 MHz | IEC 60250 | 5.30 | |
介電常數 | 低頻100 Hz | IEC 60250 | 5.30 | |
絕緣強度 | IEC 60243 part 1 | 28 | kV/mm | |
耗散因數 | 1 MHz | IEC 60250 | 250 | |
耗散因數 | 低頻100 Hz | IEC 60250 | 300 | |
線性熱膨脹系數 | 23-55℃ Longitudinal | ISO 11359 part 1/2 | 120 | um/m-℃ |
熱變形溫度 | 1.8MPa | ISO 75 part 1/2 | 55 | ℃ |
維卡軟化點 | VST/B/50 | ISO 306 | 60 | ℃ |
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