Practical methods to increase the fluidity of liquid silica gel
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Author:SENLEEMOLD
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Published time: 2020-11-17
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Generally speaking, liquid silica gel can be stored for half a year and a year. If it exceeds one year, the viscosity of silica gel will thicken with time. The expired liquid silica gel will solidify into a ball like the picture below, with almost no fluidity. , This will make us very difficult. The fluidity of the expired liquid silicone will be very poor and almost agglomerate, which will cause the AB glue to be difficult to stir and the phenomenon of non-leveling when filling the glue. If a large amount of silicone oil is added, the tear resistance and toughness of the silicone will decrease after curing. , Then how to increase the fluidity of liquid silica gel without affecting the performance of silica gel?
一般来说液体硅胶放个半年一年的还好,如果超过了一年硅胶的粘度会随着时间的增加而变稠,过期了的液体硅胶会像下图一样凝固成一团,几乎没有流动性,这会让我们非常犯难。
过期了的液体硅胶流动性会非常差几乎结成一团,会造成AB胶搅拌困难和灌胶时会出现不流平的现象,如果加大量硅油会造成硅胶固化后抗撕、韧性性能下降,那该如何在不影响硅胶性能的情况下来增加液体硅胶的流动性呢?
市面上有种叫膨胀螺栓的东西,你可以根据你的硅胶的量去买根长度适合的。
买回来后我们将膨胀螺栓的外套的前面开口用钳子掰开成个十字状,然后拧紧螺母,拧紧,个简易的搅拌头就做好了。
接下来将这个搅拌头卡在电钻上开始疯狂的搅拌,经过搅拌的硅胶再次恢复了流动性。
刚搅拌完的液体硅胶因为摩擦和分子运动会有点发热,并且有很多气泡,这时候马上就用是不明智的,一来容易起泡,二来因为本身有热量会加快反应速度,还是容易起泡,放一阵吧,放凉了再用。