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樂泰® HHD 3542™ is a reactive hot-melt adhesive based on polyurethane prepolymers. It is designed for robotic dispensing and has a relatively long open time. Immediately after solidifying in the bond line, the adhesive provides good initial strength. Then the secondary moisture cure cross-links the bonds for excellent elongation and structural durability. Fully cured product does not remelt. TYPICAL PROPERTIES OF UNCURED MATERIAL Specific Gravity @ 25 °C 1.1 Viscosity, Brookfield - Thermosel, 100 °C, mPa•s (cP): Spindle 27 3,500 to 7,500 Flash Point - See SDS TYPICAL CURING PERFORMANCE Open Time @ 25 °C, minutes, 1 mm bead
樂泰®
HHD 3542™是一種基于活性的熱熔膠
聚氨酯預(yù)聚物。它是為機(jī)器人設(shè)計(jì)的
并且具有較長的開放時(shí)間。立即
在粘結(jié)線固化后,粘合劑提供良好的效果
初始強(qiáng)度。然后二次水分固化交聯(lián)
優(yōu)異的伸長率和結(jié)構(gòu)耐久性的粘合。
完全固化的產(chǎn)品不會(huì)重熔。
固化材料的典型特性
25°C比重1.1
粘度,Brookfield - Thermosel,100℃,mPa•s(cP):
主軸27 3,500至7,500
閃點(diǎn) - 見SDS
典型的固化性能
開放時(shí)間@ 25℃,分鐘,1毫米珠<4
應(yīng)用溫度,°C 90至110
治療速度與時(shí)間
下圖顯示了交聯(lián)粘合拉伸強(qiáng)度
隨著時(shí)間的推移在基板上以22℃/ 50%RH顯影 |