文档介绍:硅烷偶联剂应用方法
several group number, then with b ± a, =c,c is is methyl b two vertical box between of accurate ,转速越高,分散效果越好。一般搅拌在10-30分钟(速度越慢,时间越长),填料处理后应在120℃烘干(2小时)。
(2)、硅烷偶联剂水溶液(玻纤表面处理剂):玻纤表面处理剂常含有:成膜剂、抗静电剂、表面活性剂、偶联剂、水。%-2%,将5倍水溶液首先用有机酸或盐将PH调至一定值,在充分搅拌下,加入硅烷直到透明,然后加入其余组份,对于难溶的硅烷,可用异丙醇助溶。在拉丝过程中将玻纤表面处理剂在玻纤上干燥,除去溶剂及水份即可。
(3)、底面法:将5%-20%的硅烷偶联剂的溶液同上面所述,通过涂、刷、喷,浸渍处理基材表面,取出室温晾干24小时,最好在120℃下烘烤15分钟。
(4)、直接加入法:硅烷亦可直接加入“填料/树脂”的混合物中,在树脂及填料混合时,硅烷可直接喷洒在混料中。%-2%,(根据填料直径尺寸决定)。然后将加入硅烷的树脂/填料进行模型(挤出、注塑、涂覆等)。
大致的填料直径和使用硅烷的比例如下:
填料尺寸
使用硅烷比例
60目
%
100目 %
200目 %
300目 %
400目 %
500目以上 %
常用硅烷醇/水溶液所需PH值:
产品名称
处理时的溶剂
several group number, then with b ± a, =c,c is is methyl b two vertical box between of accurate size. Per-2~3 measurement, such as proceeds of c values are equal and equal to the design value, then the vertical installation accurate. For example a, b, and c valueswhile on horizontal vertical errors for measurement, General in iron angle code bit at measurement level points grid errors, specific method is from baseline to methyl vertical box center line distance for a,, to b vertical box distance for b, list can measured
several group number, then with b ± a, =c,c is is methyl b two vertical box between of accurate size. Per-2~3 measurement, s