1、Performance of castor oil polyurethane resin in composite with the

Composite boards consisting of a higher content of mercerized piassava fibers (10 mm, 85 wt.%) reinforced polyurethane castor oil-based resin (prepolymer (PP) and polyol (OM)) exhibited...

2、Synthesis and properties of castor oil–based cationic waterborne

In this study, polyurethane prepolymers containing branched chains were successfully synthesized by using diphenylmethane diisocyanate (MDI), polytetramethylene ether glycol (PTMG) and castor oil (CO) as the main raw materials.

3、Rigid polyurethane foams from commercial castor oil resins

In this work, three rigid polyurethane foams obtained from commercially available Castor Oil-based resins have been characterised at different length scales. The main findings are summarised as follows.

4、Castor Oil

Polyurethane (PU) foam adhesives were prepared from castor oil as a polyol with isocyanate poly (4,4’-methylene diphenyl isocyanate) (PMDI) using a solvent-free process. The NCO/OH molar ratio used for the preparation of PU foams was 1.5.

5、Synthesis and properties of castor oil–based cationic

In this study, polyurethane prepolymers containing branched chains were successfully synthesized by using diphenylmethane diisocyanate (MDI), polytetramethylene ether glycol (PTMG) and castor oil (CO) as the main raw materials.

Castor oil

To overcome this, using a solvent-free thiol-olefin click reaction, we initially synthesized castor oil that has been modified to become 1-thioglycerol (TCO), and then we employed this polyol to produce cross-linked polyurethanes designated TCO-NCO (NCO-HDI, HMDI, and IPDI) without adding a catalyst or solvent.

Performance of castor oil polyurethane resin in composite with the

Composite boards consisting of a higher content of mercerized piassava fibers (10 mm, 85 wt.%) reinforced polyurethane castor oil-based resin (prepolymer (PP) and polyol (OM)) exhibited excellent performance.

Journal of Polymer Science

The castor oil-based modified rigid polyurethane foams were prepared, and their thermal stability, thermal insulation, mechanical and flame retardant properties were characterized and proven to be enhanced.

Preparation and properties of organosilicon and castor

Improved hydrophobicity of polyurethanes was confirmed upon the introduction of castor oil and organosilicon. The modified polyurethane coatings have better corrosion resistance. Improved wear, acid and alkali resistance is confirmed.

Using Modified Castor Oil as Bio‐Polyol in Preparation of Water‐Blown

In this study, castor oil (CO) used as bio-polyol is modified by the transamidation process with diethanol amine to increase the hydroxyl group content before water-blown rigid polyurethane foam preparation.

Castor oil modified polyurethane resin is a high-performance synthetic material that combines the advantages of castor oil and polyurethane resin. It exhibits excellent mechanical properties, chemical resistance, and good processability. Widely used in various industrial fields such as automotive, construction, electronics, and aerospace, this material has gained significant traction. This article introduces the preparation methods, performance characteristics, application areas, and future development trends of castor oil modified polyurethane resin.

Preparation Methods

The preparation of castor oil modified polyurethane resin typically involves the following steps:

1. Polymerization Reaction

First, castor oil reacts with isocyanate to form a prepolymer. This is followed by chain extension or crosslinking reactions with a chain extender or crosslinking agent and polyol to produce the polyurethane resin.

2. Addition of Castor Oil

To improve the physical properties of the resin, castor oil is incorporated. It enhances flexibility, impact resistance, and thermal stability.

3. Homogeneous Mixing

All components are thoroughly mixed to ensure proper ratios and uniform distribution.

4. Post-Processing

Depending on requirements, the resin undergoes heat treatment, drying, or other post-processing steps to achieve the final product.

Performance Characteristics

Castor oil modified polyurethane resin offers the following advantages:

• Mechanical Properties: The high elasticity and wear resistance of polyurethane, combined with the plasticizing effect of castor oil, result in superior mechanical strength and durability.
• Thermal Resistance: The resin maintains its performance at elevated temperatures, ensuring reliability in harsh conditions.
• Chemical Resistance: Due to the chemical inertness of polyurethane, the material resists corrosion from most chemicals.
• Processability: It can be easily processed via injection molding, extrusion, coating, and other methods.

Application Areas

Owing to its unique properties, castor oil modified polyurethane resin is extensively used in:

• Automotive Manufacturing: For interior/exterior parts, tires, seats, and more.
• Construction: In flooring, ceilings, wall decorations, and insulation materials.
• Electronics: For device casings, keyboards, switches, and protective coatings.
• Aerospace: In aircraft and spacecraft components.
• Sports Equipment: For sneakers, balls, and other athletic gear.

Future Development Trends

With advancements in technology and growing environmental awareness, the future of castor oil modified polyurethane resin may focus on:

• Green Development: Eco-friendly production methods and materials to reduce pollution and energy consumption.
• Functionalization: Incorporating functional fillers or additives to create specialized resins for diverse applications.
• Customization: Tailoring resin properties to meet specific industry and application demands.
• Intelligent Manufacturing: Leveraging AI and machine learning to optimize production efficiency and product quality.

castor oil modified polyurethane resin, as a high-performance synthetic material, holds vast potential for innovation and market growth. Through continuous technological advancements, it is poised to deliver cutting-edge solutions across industries.