As a leading Dioctyl Adipate (DOA) supplier, we deliver high-quality products across diverse grades to meet evolving needs, empowering global customers with safe, efficient, and compliant chemical solutions.
What are the main uses of Dioctyl Adipate (DOA)?
Dioctyl adipate (DOA) has a wide range of uses and is used in many fields.
First, in the plastics industry, DOA is often a plasticizer. Because of its good low temperature properties, adding polyvinyl chloride (PVC) and other resins can significantly improve the cold resistance of plastic products. In the cold winter, PVC products plasticized by DOA can still remain soft and not easy to crack. For example, films, artificial leather and other products in low temperature environments rely on this to maintain good flexibility and meet the needs of users.
Second, in the rubber industry, DOA also has a place. It can be used as a plasticizer and softener for rubber to improve the processing performance of rubber and make rubber easier to mix and shape. And can enhance the cold resistance and oil resistance of rubber products, such as some special rubber products, in cold and oily conditions, with the effect of DOA, can ensure stable performance and prolong service life.
Third, in the coating industry, DOA can be used as a solvent and plasticizer. It can improve the film formation and leveling of coatings, make the coating more uniform and smooth, and can improve the flexibility and adhesion of the coating, so that the coating adheres firmly to the surface of objects, durable, such as metal, wood and other materials.
Fourth, in the fragrance industry, DOA can be used as a solvent for fragrances. Due to its relatively stable chemical properties and certain solubility, it can evenly disperse the fragrance, prolong the fragrance retention time, and play an important role in the stability and durability of the aroma when blending various perfumes and fragrances.
In short, dioctyl adipate (DOA) is important in various fields of industry. With its unique properties, it can help improve the performance of various products and meet the needs of different scenarios.
What are the physical properties of Dioctyl Adipate (DOA)?
Dioctyl ester (DOA) is a commonly used plasticizer in chemistry. Its physical properties are unique, let me tell you one by one.
Looking at its properties, at room temperature, DOA is a colorless and odorless oily liquid, clear and transparent, like a warm jade liquid. Its fluidity is quite good, it feels smooth and silky.
When it comes to melting point, the melting point of DOA is about -67.8 ° C. This low temperature characteristic allows DOA to maintain a good physical state in a relatively cold environment, without solidification and rigidity, and still maintain its flexibility and plasticity.
In terms of boiling point, it is about 376 ° C, and the higher boiling point indicates that DOA has good thermal stability. It is not easy to evaporate and dissipate within the general processing and use temperature range, and can effectively exert its plasticizing efficiency to ensure the stability of the material.
As for the density, it is about 0.927g/cm ³, which is slightly lighter than water. This density characteristic can affect the weight and buoyancy of the material in some application scenarios.
Solubility is also an important physical property of DOA. It is soluble in most organic solvents, such as alcohols, ethers, ketones, etc. This property provides convenience for its application in different formulation systems, and can be well mixed with various substances to optimize the properties of materials. However, it has little solubility in water and is almost insoluble. This characteristic allows DOA to maintain its own chemical and physical stability in humid environments, and does not easily react or dissolve with water.
The flash point of DOA is quite high, about 196 ° C, which is a key indicator to measure its flammability. The higher flash point means that DOA is not prone to combustion due to open flames or high temperatures during normal use and processing, and has certain safety.
To sum up, the many physical properties of DOA make it play an indispensable role in the processing of plastics, rubber and other materials. With its unique properties, it endows materials with more excellent quality and characteristics.
In which industries is Dioctyl Adipate (DOA) widely used?
Dioctyl ester (DOA) is widely used in various industries. In the plastics industry, it is an important plasticizer. Plastics are widely used in daily use, such as polyvinyl chloride (PVC) products. In order to make PVC flexible and elastic, DOA is often added to them. PVC products such as toys, artificial leather, and films all rely on DOA to obtain suitable softness and processability, making them suitable for civilian use.
Furthermore, in the synthetic rubber industry, DOA is also very useful. When synthetic rubber is prepared, DOA is added to increase its plasticity and cold resistance. This is of great significance to rubber products such as tires and hoses. When driving in cold regions, tires need to be cold-resistant. DOA helps to prevent rubber from being brittle due to cold and ensure the safety of driving.
In the paint industry, DOA is also indispensable. It can improve the leveling and gloss of paints, so that the paint is applied to the utensils, and the surface is uniform and smooth. Household utensils, interior and exterior walls of buildings are all enhanced by DOA.
In the textile printing and dyeing industry, DOA can be used as a fabric softener. After being treated, the fabric feels soft, comfortable to wear, and can increase the antistatic properties of the fabric, so that the fabric is less dusty and clean.
DOA is also used in the leather industry. It can make leather soft and plump, improve the quality and durability of leather, and leather products such as leather jackets and shoes are even better because of DOA.
To sum up, DOA is widely used in plastics, rubber, coatings, textile printing and dyeing, leather and other industries, and is widely used in industrial production and people's livelihood.
What are the production methods of Dioctyl Adipate (DOA)?
Nowadays, there are two methods for preparing dioctyl adipate (DOA).
One is the esterification method. This is a commonly used method, using adipic acid and isooctanol as raw materials. First, adipic acid and isooctanol are placed in a reaction kettle in a certain proportion, and an appropriate amount of catalyst, such as sulfuric acid and p-toluenesulfonic acid, is added. When heated to a certain temperature, the esterification reaction between the two occurs. This process requires constant stirring to promote a uniform reaction. The water generated in the reaction can be removed by azeotropic distillation to facilitate the reaction to proceed in the direction of generating DOA. When the reaction reaches a certain degree, cooling, neutralizing the catalyst, washing with water to remove impurities, and then distilling and rectifying, high-purity DOA can be obtained.
The second is the transesterification method. Dimethyl adipate and isooctanol are used as raw materials. In the reaction vessel, a catalyst, such as tetrabutyl titanate, is added. Under suitable temperature and pressure, dimethyl adipate and isooctanol undergo transesterification reaction to form DOA and methanol. Methanol has a low boiling point, which can be separated out in time by distillation to promote the positive progress of the reaction. After the reaction is completed, DOA can also be obtained by separation, purification and other operations. The advantage of this method is that the reaction conditions are relatively mild and the product quality is also good.
These two are common methods for making DOA, each has its own advantages and disadvantages. In actual production, it should be used according to the specific situation.
What is the market outlook for Dioctyl Adipate (DOA)?
In today's world, chemical products are often involved in people's livelihood. Dioctyl Adipate (DOA), that is, dioctyl adipate, is quite famous in the chemical industry. Its market prospects are promising, but there are also variables. Try to analyze it for you.
DOA has good cold resistance, plasticity and low volatility. These characteristics make it a place in many industries. In the plastics industry, it is the best plasticizer, which can make plastic products have good flexibility and cold resistance, such as films, artificial leather, etc., and is widely used. And because of its low toxicity, it is also recognized in food packaging, medical supplies and other fields with strict safety requirements.
Looking at market demand, with the development of the economy, the demand for plastic products is increasing day by day, and the market for DOA, as an important plasticizer, is also expanding. The rise of emerging industries, such as battery separators for new energy vehicles, have high requirements for material flexibility and stability, and DOA may find new opportunities in the meantime. Furthermore, with the growing awareness of environmental protection, DOA is more favored because of its relatively environmentally friendly characteristics, and the trend of replacing traditional high-toxic plasticizers is gradually emerging, which is good for its market prospects.
However, the market situation changes, DOA also faces challenges. Raw material prices fluctuate, which is related to its production costs. If raw material prices rise, DOA prices may rise accordingly, affecting market competitiveness. Moreover, technological innovation in the chemical industry is growing rapidly, and the emergence of new plasticizers or processes may threaten the market position of DOA. Furthermore, although it is relatively environmentally friendly, global environmental protection standards are becoming stricter, or more stringent regulations may be introduced, limiting its production and application.
Overall, the market prospects of DOA, opportunities and challenges coexist. With unique advantages, supported by the needs of many industries, there is room for development; however, in the face of variables in cost, technology and regulations, the chemical industry also needs to understand the current situation and introduce new ones to ensure the stability of DOA in the market.
