DOTP

Custom Decorative Film Manufacturer

Xiongxing Group is a joint-stock private enterprise specializing in manufacturing new materials. Long pursuit of the management spirit of "customer-oriented", the corporate philosophy of "Truth, Creation, Quality and Efficiency" as well as the firm spirit and courage to be the pioneer.

Why Choose Us

High-Speed Production

Our production line contains a variety of professional machines. The machines and factories produce 24 hours a day. Our production lines can cooperate to form an entire production chain.

Rich Experience

We are an experienced PVC film manufacturer, specializing in production films for more than 26 years. So far Xiongxing is divided into 3 independent corporate enterprises.

Quality Guaranteed

We have very strict QC systems to check the material quality before production and after production. We visited our main market twice per year and got feedback for improving our technology.

Wide Product Range

Our products include PVC plastic films (Embossed film, Mattress film, Clear Film, Rigid film, etc), PVC PET interior decoration film (wood grain film, cement grain, etc), plastic plasticizers, etc.

DOTP 6422-86-2 Plasticizer

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DOTP Plasticizer Oil Tank

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DOTP Cable Plasticizer

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DOTP Wire Plasticizer

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DOTP Leather Plasticizer

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DOTP Synthetic Rubber Plasticizer

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Definition of DOTP

DOTP is a non-phthalate plasticizer, being the diester of terephthalic acid and the branched-chain 2-ethylhexanol, which is often generically referred to as octyl. This colorless viscous liquid is used for softening PVC plastics and is known for chemical similarity to general purpose phthalates such as DEHP and DINP, but without any negative regulatory pressure. It possesses very good plasticizing properties and may be used as a direct replacement for DEHP and DINP in many applications.

Specification

Characteristics	Unit	Test	Method Value
Specific Gravity	g/cm³	ASTM-D-1045-86	0.980~0.985
Heat Stability	Wt.%	ASTM-D-1045-86	≤0.10
Colour	Pt-Co	ASTM-D-1045-86	≤20
Ester Content	Wt.%		≥99.0
Acidity	Wt.%	ISI-9591-96	≤0.015
Flash Point	℃	KLJTM	200
Volume Resistivity	Ω.cm	KLJTM	1×1012

Features of DOTP

Stable

Plastisol viscosity is more stable and can't change for lots of days. Depending on this it gives uniform thicker products.

Low Migration

It has a different structure than phthalic-based plasticizers. As a result of this, migration is lower. The materials, which are made with DOTP, are more resistant. Because of lower migration, materials can't stick to the lactic surface.

Flexibility

Cause of its linear structure, it has better low-temperature flexibility. This decreases plastics' fragility at lower temperatures. Cause of DOTP's lower volatility, you can use DOTP instead of DINP and DIDP.

Safe

DOTP is a general-purpose plasticizer considered safer than ortho-phthalate plasticizers due to its excellent toxicological profile. It has uses in applications like extrusion, calendaring, injection molding, rotational molding, dip molding, slush molding, and coating.

Applications of DOTP

Flexible PVC Products

Dioctyl terephthalate (DOTP) is primarily used as a plasticizer for PVC, and as a replacement for ortho-phthalates in a wide range of applications. These include films, sheets, cables, and flooring materials. It imparts flexibility, durability, and resistance to heat and weathering to PVC.

Automotive Interiors

In the automotive industry, DOTP is utilized as a plasticizer for PVC-based materials used in vehicle interiors. This includes the manufacturing of car seat covers, dashboards, and other flexible components.

Wire and Cable Insulation

DOTP is commonly employed in the production of PVC-based wire and cable insulation. Its flexibility and thermal stability make it suitable for applications where these properties are crucial, such as in electrical wiring.

Medical Devices

DOTP is used in the production of medical devices made from flexible PVC, ensuring that the materials meet the necessary flexibility and safety requirements for medical applications.

Toys and Recreational Products

Flexible PVC formulations with DOTP find use in the manufacturing of toys, inflatables, and other recreational products. It helps provide the desired flexibility and durability for these items.

Packaging Films

DOTP is employed in the production of flexible PVC films used for packaging applications. These films benefit from the plasticizing properties of DOTP, allowing for easier processing and improved film properties.

Industrial Applications

DOTP is utilized in various industrial applications where a flexible and durable PVC material is required, such as in conveyor belts, gaskets, and hoses.

Textiles

In the textile industry, DOTP can be used as a plasticizer for PVC-coated fabrics, ensuring flexibility and durability in applications like tarpaulins and banners.

Production of DOTP

DOTP can be produced by two main methods: transesterification of dimethyl terephthalate (DMT) with 2-ethylhexanol, or direct esterification of terephthalic acid with 2-ethylhexanol. DMT is a white solid that is derived from terephthalic acid, which in turn is obtained by the oxidation of p-xylene. 2-ethylhexanol is a branched-chain alcohol that is often referred to as octyl.

►The chemical reaction for the transesterification of DMT with 2-ethylhexanol is:
C6H4(CO2CH3)2 + 2 C8H17OH -> C6H4(CO2C8H17)2 + 2 CH3OH

►The chemical reaction for the direct esterification of terephthalic acid with 2-ethylhexanol is:
C6H4(CO2H)2 + 2 C8H17OH -> C6H4(CO2C8H17)2 + 2 H2O

Storage Tips for DOTP

Dioctyl terephthalate (DOTP) should be stored in tightly-closed containers in a cool, dry place away from naked flames and oxidizing agents.

It is not classified as dangerous and can be expected to remain stable under normal storage and usage conditions.

This material should be handled in accordance with industry practices. Appropriate precautions including engineering controls and personal protective equipment should be observed.

The product may cause skin irritation if contact is repeated or prolonged, as well as slight eye irritation, particularly in susceptible individuals.

Risks from inhalation of vapour or mist are low due to the material’s low vapour pressure and high viscosity.

Certifications

We have passed ISO9001, ISO14001, EN7 16, EN14342, SGS, etc.

Our Factory

Our factory covers an area of up to 400,000 m2 and has 37+ production lines to support large-scale production.

Frequently Asked Questions (FAQ) about DOTP

Q: What are the advantages of DOTP over other plasticizers?

A: DOTP also has a number of advantages: low volatility, which significantly increases the lifecycle of the final product; low temperature fragility; expansion of operating temperatures of cable products from -40 +70 to -45 +80 °C.

Q: Can DOTP be produced from renewable resources?

A: The terephthalic acid as the raw material of DOTP was a non-renewable resource derived from petroleum.

Q: Is DOTP biodegradable?

A: Unlike traditional plastics, which can take centuries to decompose, DOTP exhibits biodegradability under appropriate conditions.

Q: Is DOTP safe for use in food packaging?

A: Dioctyl Terephthalate (DOTP) is generally considered safe for use in food packaging applications. It is often selected as a plasticizer in food contact materials due to its low toxicity and good compatibility with PVC resins. DOTP has been evaluated for safety and regulatory compliance by various authorities.

Q: Is DOTP safe for use in medical devices?

A: Di(2-ethylhexyl) terephthalate (DOTP) is commonly used as a plasticizer in various applications, including medical devices. It is often chosen as an alternative to phthalate plasticizers due to its perceived lower toxicity and potential health concerns associated with certain phthalates. DOTP is known for its good plasticizing efficiency and low volatility.

Q: Is DOTP safe for use in toys?

A: Yes, Diisononyl Terephthalate (DOTP) is generally considered safe for use in toys. DOTP is a non-phthalate plasticizer that has been developed as an alternative to traditional phthalate plasticizers, which have raised concerns regarding their potential health effects, especially in children's products.

Q: What is the toxicity of DOTP?

A: DOTP has a full toxicological profile and no relevant hazards; studies are available for genotoxicity, carcinogenicity, reproductive and developmental toxicity, endocrine disruption, and environmental fate and repeat dose toxicity.

Q: What is the proper storage condition for DOTP?

A: Store in a cool, dry area protected from environmental extremes. Store away from incompatible materials and foodstuff containers.

Q: What is the molecular formula of DOTP?

A: Its molecular formula is C24H38O4.

Q: What is the molecular weight of DOTP?

A: Its molecular weight is 390.56.

Q: What is the boiling point of DOTP?

A: The boiling point is 752°F

Q: What is the freezing point of DOTP?

A: The freezing point is -54.4°F

Q: How is DOTP used in PVC formulations?

A: It is used primarily as a plasticizer in PVC production. DOTP-based end products comply with environmental requirements such as 16P, ROHS and REACH regulation. It has no adverse effects on human health.

Q: What is the compatibility of DOTP with other plasticizers?

A: DOTP has excellent compatibility and can also be used as a plasticizer for acrylonitrile derivatives, polyvinyl butyral, nitrile rubber, nitrocellulose, synthetic rubber, paint additives, precision instrument lubricants, lubricant additives, and as a softener for paper.

Q: What is the migration of DOTP from PVC?

A: The migration of Diisononyl Terephthalate (DOTP) from polyvinyl chloride (PVC) refers to the potential movement of the plasticizer from the PVC material into the surrounding environment, especially in the presence of liquids or other substances.

Q: What is the plasticization efficiency of DOTP?

A: The plasticization efficiency of DOTP (Di-Octyl Terephthalate) refers to its ability to act as a plasticizer in various polymer applications. The plasticization efficiency of DOTP is determined by its effectiveness in imparting flexibility and durability to polymers, such as PVC (Polyvinyl Chloride).

Q: How does DOTP affect the mechanical properties of PVC?

A: For PVC composites with DINP the increase of tensile strength and elongation at break is approximately 14 %, but for those with DOTP the increase for these properties was about 65 %.

Q: How does DOTP affect the thermal stability of PVC?

A: DOTP (Di-Octyl Terephthalate) is known to enhance the thermal stability of PVC (Polyvinyl Chloride). When used as a plasticizer in PVC formulations, DOTP contributes to improved thermal properties of the resulting material.

Q: Is DOTP phthalate free?

A: DOTP Dioctyl terephthalate is a phthalate-free plasticizer that meets highest environmental requirements.

Q: What is the shelf life of DOTP?

A: Shelf life: 24 months.

Guangdong Xiongxing New Material Co., Ltd. is one of the leading dotp manufacturers and suppliers in China. We warmly welcome you to wholesale high-grade dotp in stock here from our factory. All custom made products are with high quality and competitive price. Contact us for free sample.

Di 2 ethylhexyl Plasticizer Oil, Di 2 ethylhexyl terephthalate, Plasticizer Oil