熱塑性密封條料是一款硬度50A-95A可調(diào)，具有密度低，耐老化性能好，回彈好，撕裂強(qiáng)度高，耐低溫等優(yōu)點(diǎn)的TPE橡膠材料。廣泛應(yīng)用于車窗玻璃密封條，車門密封條，裝飾條、嵌條，行李箱蓋密封條、發(fā)動(dòng)機(jī)罩密封條、水箱密封條、應(yīng)急門密封條等。
Thermoplastic sealing strip material is a TPE rubber material with can adjust hardness to 50A-95A. It has low density, good aging resistance, good rebound, high tear strength and low temperature resistance. It is widely used in window glass sealing strip, door sealing strip, decorative strip, insert strip, trunk lid sealing strip, engine hood sealing strip, water tank sealing strip, emergency door sealing strip, etc.
測(cè)試項(xiàng)目 | 測(cè)試方法 | 典型值Typical value | |
密封條料-75A | 密封條料-85A | ||
拉伸強(qiáng)度/Tensile Strength, MPa, 500mm/min | GB/T 528 | 10 | 13 |
斷裂伸長(zhǎng)率/Elongation at Break, %, 500mm/min | GB/T 528 | 880 | 800 |
邵氏硬度/Shore Hardness, HA, 25℃ | GB/T 531 | 75 | 85 |
密度/Density, g/cm3 | GB/T 1033 | 0.99 | 1.00 |
熔融指數(shù)/Melt flow rate, g/10min（220℃，5.0kg） | GB/T 3682 | 0.4-0.7 | 0.4-0.7 |
含水率/Moisture content, ‰ | GB/T 6284 | 0.39 | 0.38 |
收縮率/Shrinkage, % | GB/T 15585 | 0.73 | 0.74 |
工藝性能/Process performance | 要求Requirement | ||
擠出工藝參數(shù)/Extrusion process parameters | 進(jìn)料段160℃，加熱段180~210℃，模頭190℃ | ||
外觀/Appearance | 表面平滑，無氣泡、雜質(zhì)等缺陷 | ||
尺寸/size | 與標(biāo)準(zhǔn)樣品基本一致 | ||
擠出/Extrusion | 出料均勻，牽引正常 | ||