Hydroxypropyl methylcellulose is the main reason why the putty becomes thinner and thinner

       When you produce and use putty, there will be various problems. Today we will talk to you about the phenomenon that when you mix putty powder with water and stir with an electric drill, the putty will become thinner and water will separate out. Seriously, the root cause of this problem is the hydroxypropyl methylcellulose added to the putty powder. Let's take a look at how it works.

       1. The viscosity of hydroxypropyl methylcellulose is not suitable, the viscosity is too low, and the suspension effect is not enough, at this time, the phenomenon of water separation will be serious, and the effect of uniform suspension cannot be reflected.

       2. This water-retaining agent is added to the putty powder, which has a very good water-retaining effect. When the putty is dissolved in water, it locks a large amount of water. At this time, a lot of water is flocculated into water groups, and with stirring , A lot of water is separated, so the more you stir, the thinner it becomes. This is a common problem, and many people have encountered such a problem. You can appropriately reduce the amount of cellulose added or the added moisture.

       3. It also has a certain relationship with the structure of hpmc itself. It has thixotropy, so after adding cellulose, the entire coating has a certain thixotropy. Therefore, when the putty is rapidly stirred, its overall structure is dispersed and appears. The phenomenon is getting thinner and thinner, but when standing still, it slowly recovers.

       Our company's cellulose not only has good water retention, but also has a good suspension effect, and the appropriate viscosity can be selected. It also has the effect of resisting water separation.