English
中文简体DOP Plasticizer is also known as dioctyl phthalate, and its application as a plastic additive is limited to industrial plastic products. It is mainly used in the processing of polyvinyl chloride resin, and can also be used in the processing of high polymers such as chemical fiber resin, acetate resin, ABS resin and rubber, and can also be used in making paint, dyes, dispersants, etc. General-purpose DOP, widely used in industries such as plastics, rubber, paints and emulsifiers. Plasticized PVC can be used to make artificial leather, agricultural film, packaging materials, cables, etc.
The effect of DOP plasticizer is due to the weakening of the aggregation between the macromolecular chains in the polymer material. There are three modes of action: isolation, interaction and shielding. In fact, the three cannot be completely separated, and the effects of several DOP plasticizers may exist simultaneously in the plasticizing process.
The working principle of DOP plasticizer:
When the temperature of PVC rises, DOP molecules are inserted into the molecular chains of PVC. On the one hand, the polar ester groups of DOP and the polar groups of PVC can "interact" with each other very well and do not repel each other, thus making PVC larger. The intermolecular force is weakened and the plasticity is increased. On the other hand, the non-polar alkyl group of DOP is sandwiched between PVC molecular chains, covering the polar groups of PVC and reducing the force between PVC molecular chains. Therefore, the movement of the action chain of the DOP plasticizer during the molding process is relatively easy.
However, because o-phthalic plasticizers are not environmentally friendly, many EU countries have banned the use of such products as main plasticizers.
Faced with such a situation, the synthetic vegetable ester produced by Zhejiang Great Chemical Science & Technology Co., Ltd. is non-toxic, environmentally friendly, has good plasticizer effect, good cold resistance, and is not easy to emit oil. It fundamentally solves the shortcomings of DOP plasticizers such as not being environmentally friendly, and can replace the use of DOP plasticizers. It is superior to DOP and DBP in several important parameters. It has the advantages of high plasticizer efficiency, environmental protection and non-toxicity, long thermal stability time, good compatibility with polymers, low volatility, ability to inhibit leakage, large capacity of extenders, and high brightness of products.
For more product information, please click here: Plasticizers Manufacturers.
