DOP Plasticizer is a general purpose plasticizer that offers high permanence, excellent stability to heat and UV, and a broad range of compatibility with PVC. It also provides good resistance to hydrolysis and low volatility.
The molecular structures of DINP and DOP are arranged differently in the ortho position on the benzene ring. Because of this, they cannot migrate as easily.
It is a phthalate
Dioctyl phthalate is the most popular plasticizer for PVC products. It is widely used in PVC and ethyl cellulose resins to make plastic film, artificial leather, electrical wire, and molded plastic. Its low volatility, high plasticizing efficiency, cold-resisting property, water extractability proof, and good UV-resistance makes it a valuable additive for many kinds of synthetic rubber and PVC polymers.
Diisobutyl phthalate (DIBP) is another phthalate used in PVC production. It is odorless, colorless, and offers good heat and light stability. It also reduces fogging in vehicle interiors, which is a benefit for the automotive industry. DIBP is not considered an endocrine-disrupting chemical and is safe for use in food contact applications.
Like other phthalates, DIBP can accumulate in the body. Studies have linked it to sperm problems and low testosterone levels in men. It can also cause neurological problems, including behavioral changes and attention deficit disorder. It is found in a wide range of household products, including vinyl shower curtains and flooring.
It is a terephthalate
The plasticizer is added to the polymer in order to make it more workable. It is also used to improve the properties of the polymer, making it more flexible and pliable at low temperatures. The market for plasticizers is characterized by two broad categories, phthalates and non-phthalates. Phthalate esters based on phthalic acid are the most commonly used, including di(2-ethylhexyl) phthalate (DEHP), diisononyl phthalate (DINP), and di(2-propylheptyl) phthalate (DPHP). Non-phthalate plasticizers include adipates, esters, trimellitates, and epoxy.
The rheological characteristics of PVC compositions containing developed plasticizers were studied in the temperature range 160-205 degC. The results show that the adipate plasticizer significantly decreases the glass-transition temperature of the polymer.
It is a hydroxyl
Among all the plasticizers used in PVC, Dioctyl Phthalate (DOP) has a long history of use due to its excellent stability to heat and UV light. It has also been shown to have good compatibility with a wide variety of other polymers. In addition, DOP is a nontoxic and low volatility compound.
In order to assess the performance of this new plasticizer, it was tested for its ability to lower the glass-transition temperature of PVC and its extraction properties. The results showed that the extraction rate of BPEA is significantly lower than that of DOP and that it is compatible with a wide range of other polymers. Its thermal-oxidative stability is also better than that of DOP.
In the experiment, commercial 4-hydroxyphthalic acid was converted to acyl chloride with thionyl chloride and alcoholised with iso-octanol. This was then combined with DOP to form the new molecule DOP-O-CP52. CP52 has a larger molecular size than DOP, which can obstruct its migration and hinder forces that hold PVC chains together, partially compensating for decreased plasticizing efficiency.
It is a hydrocarbon
While DOP is the most popular general use plasticizer in PVC, it has many limitations and can be toxic when exposed to sunlight or oxygen. DOP is also a hazardous chemical and requires special handling and packaging. Because of this, it is important to know the regulations that apply to shipping it. The regulations include pressure and temperature limits, among others. Shippers should be familiar with these restrictions and follow them strictly. Failure to do so could result in fines or even imprisonment.
Butyl phenoxyethyl adipate is a free-flowing hydrocarbon plasticizer that has good compatibility with PVC and high thermal stability. It also lowers the glass-transition temperature of PVC compounds by 132.2 degC compared to pure PVC and by 7.7 degC compared to compounds based on DOP. It also increases the melt flow of PVC compound processing technologies with low energy consumption and resource efficiency. In addition, butyl phenoxyethyl has a positive effect on the morphology of PVC.