How do some common problems of insulating rubber sheet result?

If the insulating rubber sheet is not carefully manufactured, it is very easy to lead to rubber pad defects such as lack of rubber, black spots, unsmooth, bubbles and discoloration, and most of these problems are caused by vulcanized rubber processing technology. Here we are going to explain in detail what is the initial problem of insulating rubber sheet? Look at it quickly!
1. Reasons for fading:
We must understand that the fading of colored products is related to the color fastness and oxidation resistance of colorants and colorants, as well as the characteristics of common epoxy resins. According to the production and processing standards and application regulations of insulating rubber sheet, it can be applied only after the above characteristics of color paste, dye and surfactant are evaluated.
The color fastness of additives determines the fading of product output. Outdoor products can quickly fade under strong light. The color fastness to light of weathering products should not be less than grade 6. The color fastness to light of epoxy resin is very harmful to color change.
The molecular formula of epoxy resin irradiated by ultraviolet light will also fade, so light stabilizers such as ultraviolet absorbent should be added to the masterbatch. It can improve the color fastness of goods and plastic products. The heat resistance of this color paste refers to the weight loss state, color fading and fading level of natural materials under the production and processing temperature.
2. Reasons for lack of glue:
The semi-finished product processing material consumption is not enough, the tablet computer rises too fast, the plastic particle fluidity is not enough, the mold shell can not seal material, the mold shell exhaust pipe standard deviation, the mold shell temperature is too high. The solution is: make sure the clamping force in the die shell again, release the rising rate of the plate, continuously deflate, improve the stamping die, reduce the temperature of the die shell, and accelerate the operation speed.
3. The reason of surface bubble is as follows
The mixture contains the vapor dissolved in the vulcanized rubber, so that the gas in the mold core is not completely discharged, and the mold shell has no exhaust pipeline. Water solution: the air is continuously discharged before the mold is locked, the exhaust pipeline is added to the mold shell, and calcium hydroxide is added to the secret recipe.
4. The reason why the surface is not smooth:
The surface of insulating rubber plate is not smooth and the mixing time is too short. The solution is to clean the mussels and increase the burning time.