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Ningbo Release Agent: Application of Release Agent in Butyl Rubber Plug Industry
Butyl rubber stopper industry is mainly used for human infusion bottle stopper and veterinary drug infusion bottle stopper industry, this market release agent is mainly used in Germany Henkel and the United States Kentian products, because they are foreign products, resulting in trade war process, the price soared, to domestic customers bring cost increase.
Mold release agentAttention to use
Since most liquid internal release agents are acidic, the following issues should be paid attention to in use:
1. The use of acid-sensitive pigments can cause color changes.
2. When using alkaline fillers, such as calcium carbonate. Acid release agent will react with it, causing the viscosity of the mixture to increase, but will not affect the release effect.
3. If the filler is aluminum hydroxide, the acid release agent will not only increase the viscosity of the mixture, but also release water during the curing process of the mixture, causing problems such as bubbles and cracks.
Generally, the initial dosage of the internal release agent is 1% of the resin, and the effective addition range is 0.75-2% based on the weight of the resin, which should be appropriately adjusted according to the actual situation.
1, thin-walled simple profiles, the amount can be appropriately less, such as 0.8% or less.
2, thick wall or complex shape profiles need to add more.
3. In the high filler system, the addition amount of internal release agent should be increased. But the internal release agent added too much, will delay curing.
4. In pultrusion production, if the resistance is too large and the reason cannot be found, it needs to be increased appropriately.Mold release agentDosage, in use should pay attention to the feeding sequence, when mixing should be in the addition of curing agent, filler and other resin additives before the internal release agent plus resin system and mixed evenly. This can achieve the best release effect.
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