How to choose an environmentally friendly plasticizer. Plastic is a widely used material in our lives, whether it is in life or in industry or in the construction industry, and plasticizers must be added to plastic molding. PVC products will require different requirements. Choose plasticizing systems with different properties, especially the average level.
In the process of using environmental plasticizers, it shows a higher growth rate, better compatibility, lower volatility, and also shows a small fluidity, will not over time or with The contact and migration of other materials increase.
In the application of environmentally friendly plasticizers, it also exhibits high extraction resistance. When oil or water is in contact with solvents, there will be no diffusion; it has good low-temperature performance and will not lose its properties under low-temperature conditions. Flexibility. In addition, the environmentally friendly plasticizer also exhibits good insulation properties, good mechanical properties, colorless, odorless, non-toxic, good flame retardancy and good mildew resistance.
It is a compound plasticizer with high molecular weight, good compatibility with polyvinyl chloride, excellent plasticizing effect, flame resistance, non-toxic, environmentally friendly natural oil and alcohol esterification reaction.
Its structure has an ester structure, which can be used as a plasticizer instead of octyl phthalate, butyric acid, etc.; and because it contains chlorine, it can be used instead of chlorinated paraffin to improve the flame retardancy and electrical insulation of the product.
Environmentally friendly flame retardants can be widely used in PVC products, as long as plasticizer products can be used, and the price is low, and ultimately can reduce the production cost of the entire product
Nowadays, plasticizers are used more and more in various industries. From commonly used plasticizers, we know that plasticizers are not only different in types, but also in performance. The following factors should be considered when choosing
1. Durability (combination of anti-volatility, anti-extraction and migration)
Due to the loss of plasticizers in terms of volatilization, migration, extraction, etc., the plastic performance often deteriorates, so it cannot be used. Therefore, it is required that plastic products can exist for a long time in plastic products, that is, the so-called durability is a close friend.
2. Environmental protection
Livestock, crops, etc. are non-toxic and harmless, and will not pollute the environment.
3. Compatibility
It refers to the molecular level miscibility of two or more substances when mixed: good compatibility will lead to the formation of a uniform mixed system, and vice versa. Compatibility is the first consideration when choosing a plasticizer. If compatibility is not good, it is best not to choose. Due to the good compatibility of the plasticizer with the polymer and the high plasticizing efficiency, the plasticizer will not separate from the product and ooze out, the product has good toughness and prolonged service life. It is generally believed that 100 grams of polymer absorbs 150 milliliters of plasticizer without exuding to maintain compatibility.
4. Plasticization efficiency
The minimum amount of plasticizer required to achieve a certain degree of flexibility of the polymer is called the plasticizing efficiency of the plasticizer. Obviously, the plasticizing efficiency is a relative value, but it can be used to compare the plasticizing efficiency of various plasticizers.
5. Aging resistance (light resistance, heat resistance, mildew resistance, etc.)
The aging resistance of plastics mainly depends on the effects of stabilizers, etc., but the addition of plasticizers will cause a great impact, so it should be carefully considered when choosing.
6. Other
Good flame retardancy and electrical insulation, etc.; other additives in plastics do not bend. Inexpensive, easy to obtain and use, etc.