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DINP

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.

 

Definition of DINP
 

DINP belongs to a family of chemicals called phthalates, which are added to some plastics to make them flexible. DINP is one of the phthalates most frequently used in plastic products. It has good compatibility with PVC and will not precipitate even if it is used in large quantities. Because the products produced by this product have good water resistance, extraction resistance, low toxicity, aging resistance, and excellent electrical insulation properties, they are widely used in toy films, wires, and cables.

 

Specification
Characteristics Unit Test Method Value
Colour Mg Pt/L ASTM-D-1045-86 ≤25
Viscosity(20℃) mPa.s ASTM-D-445-86 72-82
Specific Gravity(20℃) g/ml ASTM-D-1045-86 0.973
Refractive Index(27℃) - - ASTM-D-1045-86 1.484-1.488
Acidity wt.% ASTM-D-1045-86 ≤0.01
Ester Content wt.% Degussa ≧99.6
Moisture wt.% ASTM-E-203 ≤0.04

 

Features of DINP
 

Chemical Structure

DINP is not a single chemical, but a mixture of different isononyl esters of phthalic acid. The isononyl group is a branched alkyl chain with nine carbon atoms. The exact composition of DINP may vary depending on the manufacturer and the application.

Chemical Properties

DINP has the following chemical formula: C26H42O4. It has a molecular weight of 418.61 g/mol. It is a colorless, oily liquid with a slight odor. It has a density of 0.972 g/mL at 25 ℃, a melting point of -48 ℃, a boiling point of 252 °C at 0.7 kPa, and a flash point of 235 ℃. It is poorly soluble in water (<0.01 g/mL at 20 ℃), but soluble in organic solvents such as chloroform and methanol. It has a viscosity of 64 to 265 mPa·s and a refractive index of 1.485 at 20 ℃.

Desirable for Plastics

DINP can impart various desirable properties to plastics, such as:
● Flexibility: DINP can make plastics more pliable and elastic, which can improve their performance and durability.
● Transparency: DINP can increase the clarity and gloss of plastics, which can enhance their appearance and quality.
● Stability: DINP can improve the thermal stability and resistance to oxidation of plastics, which can extend their shelf life and prevent discoloration.
● Compatibility: DINP can blend well with other plasticizers and additives, which can optimize the formulation and processing of plastics.

 

Applications of DINP

 

Automotive

DINP's durability and ease of manufacturing lend it to use in the automotive industry. When added to chassis coverings, it helps prevent damage due to dirt, corrosion, and rust damage or corrosion.

Building and Construction

DINP materials are often employed in the building and construction industry to cover exteriors and roofing. They can also be used in water-resistant protective coverings such as those used in arenas.

Cable and Wire

DINP's durability, flexibility, thermal resistance, and cost-effectiveness make it excellent for use as an insulator in smaller products, such as cables and wires.

Flooring and Textiles

As DINP evaporates slowly, it can be a good option for flooring and textile manufacturing applications, which often require lengthy dipping or spraying techniques.

Adhesives

Various caulks and sealants can benefit from DINP's low migration and weather resistant properties.

Clothing

When added to synthetic materials—such as faux leather—DINP grants additional flexibility and wear resistance.

DINP Cable Plasticizer

 

Production of DINP

The preparation method comprises the following steps:

Performing reaction between isononyl alcohol and phthalic anhydride under the action of a non-acidic catalyst obtain diisononyl phthalate;
Performing reaction between liquid paraffin and chlorine under the action of a compound catalyst to obtain chlorinated paraffin;
Mixing the diisononyl phthalate, the diisononyl phthalate and the grease dimer acid at a certain temperature to obtain the compound plasticizer.

It is simple and reasonable in composition, the preparation method is simple and stable in operation and is easy to realize industrial production. And the prepared compound plasticizer is good in plasticizing effect, low in plasticizing temperature, stable in product size and high in top-grade product rate.

 

Storage Tips for DINP
 
 

Container Selection

Choose containers made of compatible materials to prevent interaction with the plasticizer. Opt for containers that provide a tight seal to minimize exposure to air and moisture.

 
 

Segregation from Incompatible Substances

Store DINP away from incompatible chemicals to prevent reactions.
Clearly label storage areas to indicate the presence of DINP and any restrictions.

 
 

Regular Inspections

Conduct routine inspections for leaks, damage, or signs of contamination. Immediately address any issues to prevent further deterioration.

 
 

Emergency Response Plan

Develop and communicate an emergency response plan in case of spills or accidents. Ensure availability of appropriate cleanup materials and personal protective equipment.

 
 

Temperature Control

Store DINP at recommended temperatures to prevent degradation. Avoid extreme temperature fluctuations that may affect the plasticizer's performance.

 
 

Avoid Sunlight Exposure

Keep containers away from direct sunlight to prevent UV-induced degradation. Store in a shaded area or use UV-blocking containers when exposure is unavoidable.

 
 

Ventilation

Ensure adequate ventilation in storage areas to prevent the accumulation of vapors. Store in well-ventilated spaces to minimize the risk of concentration.

 
 

Handling Precautions

Follow proper handling procedures to avoid spills or accidents during storage. Provide training to personnel on safe handling practices.

 

 

Certifications

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

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Our Factory

 

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

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Frequently Asked Questions (FAQ) about DINP 

Q: What polymers is DINP commonly used with?

A: International sources report that DINP is used as a plasticiser for PVC applications, such as in the manufacture of toys and construction materials. DINP is also used in non-PVC applications, such as rubbers, paints, sealants, lacquer and lubricants.

Q: How does DINP function as a plasticizer?

A: DINP belongs to a class of chemical additives known as plasticizers. As suggested by their name, when added to another material, these compounds plasticize—i.e., soften—the base material, increasing its flexibility and decreasing its brittleness.

Q: Is DINP suitable for food contact applications?

A: DINP is generally not recommended for use in food contact applications due to regulatory concerns. Phthalates, including DINP, can potentially migrate from plasticized materials into food, posing a risk to human health. It's essential to comply with regulations and choose plasticizers specifically approved for food-contact applications. Alternative plasticizers with food-safe properties may be considered for such purposes.

Q: Is DINP toxic?

A: While there are concerns about the toxicity of phthalates, including DINP, it is generally considered safe in regulated applications. However, caution is advised.

Q: Are there regulations governing the use of DINP?

A: Yes, regulatory bodies like the EPA and REACH have guidelines and restrictions on the use of DINP due to potential environmental and health impacts.

Q: Can DINP be replaced with alternative plasticizers?

A: Yes, there are alternative plasticizers, such as di(2-ethylhexyl) terephthalate (DEHT) or diisononyl cyclohexane-1,2-dicarboxylate (DINCH), that are considered more environmentally friendly.

Q: How stable is DINP under different temperature conditions?

A: DINP is relatively stable under normal temperature conditions. However, it's crucial to store it within recommended temperature ranges to maintain its performance and prevent degradation. Extreme temperatures, especially high heat, can affect the stability and efficacy of DINP as a plasticizer. Proper storage practices should be followed to ensure the integrity of products containing DINP, and adherence to manufacturer guidelines is essential to mitigate any potential adverse effects related to temperature exposure.

Q: Can DINP be recycled?

A: The recycling of products containing DINP can be challenging due to the need for separation from other materials. DINP is commonly used as a plasticizer in various polymer products, and separating it from these polymers during recycling processes can be complex and costly. Additionally, recycling methods that involve high temperatures might affect the stability and properties of DINP.

Q: What safety precautions should be taken when handling DINP?

A: Use appropriate personal protective equipment (PPE), such as gloves and goggles, and follow recommended safety procedures to minimize exposure.

Q: What is the shelf life of products containing DINP?

A: The shelf life depends on various factors, including storage conditions. Manufacturers typically provide guidelines for product shelf life.

Q: Are there labeling requirements for products containing DINP?

A: Depending on regulations, there may be labeling requirements to inform consumers about the presence of DINP in certain products.

Q: How does DINP affect the mechanical properties of polymers?

A: DINP improves the mechanical properties of polymers by enhancing their flexibility and elongation. As a plasticizer, DINP interacts with polymer chains, reducing intermolecular forces and allowing for increased mobility of the polymer molecules. This results in improved flexibility, making the polymer more pliable and resistant to cracking. The addition of DINP helps maintain the structural integrity of polymer products, especially in applications where flexibility is a critical factor, such as in the production of PVC-based items like cables, flooring, and coated fabrics.

Q: Can DINP be used in toys?

A: The use of DINP in toys is restricted or prohibited in many regions due to concerns about children's exposure and potential health risks.

Q: Does DINP have an odor?

A: DINP is generally considered to have a mild odor, but the perception of odor can vary among individuals.

Q: What are the alternatives to DINP in specific applications?

A: Depending on the application, alternatives like DINCH, DEHT, or other non-phthalate plasticizers may be considered.

Q: Can DINP be used in adhesives?

A: Yes, DINP is commonly used in adhesives to improve flexibility. Its plasticizing properties contribute to the adhesive's ability to bond materials with varying degrees of flexibility. However, it's essential to consider the specific application and any regulatory requirements related to the use of plasticizers in adhesives. Manufacturers should adhere to relevant guidelines to ensure the safety and compliance of adhesive products containing DINP. Additionally, ongoing monitoring of regulatory changes and advancements in alternative plasticizers is advisable in the adhesive industry.

Q: How is DINP synthesized?

A: DINP is typically synthesized through the esterification of phthalic anhydride with isononyl alcohol. This chemical reaction results in the formation of diisononyl phthalate (DINP). The choice of isononyl alcohol as the alcohol component in the esterification process influences the properties of the final DINP product. The synthesis process is crucial to achieving the desired molecular structure and characteristics of DINP, making it suitable for use as a plasticizer in various polymer applications. Manufacturers follow specific protocols to ensure the quality and consistency of DINP during synthesis.

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

Diisononyl Phthalate Plasticizer, DINP Leather Plasticizer, Plasticizer Oil DINP

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