High-Performance Plasticizer DOP for Enhanced Flexibility in PVC Manufacturing Applications

Product Description

Product Overview

Dioctyl Phthalate (DOP) is a plasticizer used in the production of flexible polyvinyl chloride (PVC) plastic. Dioctyl Phthalate is one of the most widely used plasticizers in PVC due to its low cost. DOP is a general-purpose plasticizer and long-time industry standard known for its good stability to heat and ultraviolet light, and broad range of compatibility for use with PVC resins. Dioctyl Phthalate can also be used as dielectric and hydraulic fluids. DOP is also a solvent for many chemicals, such as in glowsticks.

 

Application Guide

 

Application areas of PVC plasticizers 
PVC plasticizers are mainly used in the production of a variety of soft PVC products, such as films, sandals, hoses, artificial leather, cable materials and so on. As the addition of plasticizers can significantly improve the processing performance and flexibility of PVC, making these products in the application of better performance 

To sum up, the principle of PVC plasticizers is to weaken the intermolecular forces, increase the mobility of molecular chains, so as to improve the processing performance and flexibility of PVC.

USES:

Customer Case
Zimbabwe pvc paste resin for glove coating, waterproof tarpaulin, PVC paste resin as raw material, need plasticizer\

General purpose grade
Widely used in plastics, rubber, paint and emulsifier industries. PVC plasticized with it can be used in the manufacture of artificial leather, agricultural films, packaging materials, cables and so on.

ELECTRICAL GRADE
In addition to all the properties of general-purpose grade DOP, it also has very good electrical insulation properties and is mainly used for the production of wires and electricity.

Food Grade
Mainly used in the production of food packaging materials.

Medical grade
It is used for the production of medical and hygienic products, such as disposable medical instruments and medical packaging materials.

 

Product Parameters

 

Product Parameters of Dioctyl Phthalate (DOP)

Parameter	Value/Description
Chemical Name	Dioctyl Phthalate (DOP)
CAS Number	117-84-0
Molecular Formula	C24H38O4
Molecular Weight	390.56 g/mol
Appearance	Colorless to pale yellow transparent oily liquid
Purity	≥99.5%
Density (20°C)	0.980-0.985 g/cm³
Boiling Point (1 atm)	386-389°C
Flash Point	215°C (Open Cup Method)
Refractive Index (20°C)	1.483-1.487
Viscosity (25°C)	~70-80 mPa·s
Acid Value (mg KOH/g)	≤0.1
Moisture Content	≤0.1%
Solubility	Soluble in most organic solvents (e.g., t0luene, ethanol); insoluble in water
Applications	PVC plasticizer, rubber softener, coatings, adhesives, cable materials
Storage Conditions	Store in a dark, sealed, cool, and dry place (recommended temperature <30°C)
Packaging	200kg/drum (galvanized iron drums or plastic drums)
Safety Information	Avoid skin/eye contact; complies with RoHS, REACH, and other regulations

Impact of DOP on PVC Properties

Property	Unplasticized PVC	DOP-Plasticized PVC
Tensile Strength	High (rigid & brittle)	Reduced (flexible)
Elongation at Break	Low (<10%)	Significantly higher (>200%)
Low-Temp Resistance	Poor (high embrittlement temp)	Improved (embrittlement temp ↓)
Processing Temp	High (180-200°C)	Lower (150-170°C)

 

Characteristic

 

Definition: a common general-purpose plasticizer

Principle

1. Plasticizing is an important method of polymer modification, for example, the flow temperature of PVC is close to the decomposition temperature, molding is often added 30 to 50% of dibutyl phthalate, which can reduce its flow temperature and melt viscosity to facilitate processing. Can also improve its cold resistance, impact resistance, made of soft plastic products (film, tape, artificial leather, etc.).

2. The principle of PVC plasticizer is mainly through the weakening of polychloroethylene PVC molecules between the secondary valence of Jian, that is, van der Waals force, thereby increasing the mobility of the molecular chain, reduce the crystallinity of the polymer, and ultimately achieve the effect of plasticizing. Plasticizers are inserted between the PVC molecular chains, weakening the intermolecular forces and increasing the mobility of the polymer molecules, thus improving the processing performance of PVC and the flexibility of the products.

3.Mechanisms of PVC plasticizers

    1) Weakening the intermolecular forces: Plasticizers work by weakening the van der Waals forces between PVC molecules, so that the interaction force between molecular chains is weakened, and the movement of molecular chains becomes easier, thus reducing the hardness, modulus and softening temperature of the polymer, and improving the elongation, curvature and flexibility.

    2) Reducing the viscosity of the melt: the addition of plasticizers can reduce the PVC melt's viscosity of the PVC melt, making it easier to process. Plasticizer molecules contain polar groups and non-polar parts, the polar groups and the part of the PVC molecular chain dipole attraction occurs, the non-polar part of the molecular chain will be separated, increasing the spacing between them, further weakening the attraction between the molecular chain .

    3) Improved processability and flexibility: the addition of plasticizers makes PVC in the The addition of plasticizers makes PVC easier to shape during processing, and the flexibility of the products is also significantly improved. For example, in PVC soft products, an average of 40-50 parts of plasticizer are added per 100 parts of resin .

Detailed Photos

 

 

Company Profile

 

Weifang Phoenix New Material Co., Ltd
 

                    Weifang Hota New Material Technology Co., Ltd. is a high-tech chemical enterprise integrating research and development, production, sales and technical services. Headquartered in Weifang, Shandong Province. Its production facilities are located in Weifang Binhai Chemical Industry Park, a state-approved chemical industry park.

             Our mission is to be the leading sustainable "one-stop shop" chemical solutions company, providing customers with innovative, science-led, differentiated products and solutions. To this end, we provide a safe and healthy working environment for our employees and comply with all local, national and international regulations.

Q and A

1.Q:How's the quality?
A:We are the source factory, quality is guaranteed.

2.Q:When does it ship?
A:We have standardized processes to ship as fast as possible.

3.Q:How do you protect the after-sales?
A:We keep samples of each batch and support returns and technical traceability in case of quality problems.