Analysis of Physical and Mechanical Properties

Oct 13, 2025 by talynt.org 143 views

Utilization of Palm Oil Palm Waste (Elais Guineensis Jacq) and Pure Polypropylene Plastic (PP) as a Composite Board with the Addition of Maleated Polypropylene

Introduction

The increasing demand for solid wood has led to a significant problem in obtaining this material, while the issue of environmental waste continues to grow. In this context, researchers have been exploring alternative materials to replace solid wood and reduce waste. One such alternative is the utilization of oil palm stem waste (Elais guineensis Jacq) and plastic polypropylene (PP) as raw materials for composite boards. This study aims to investigate the potential of using these materials as a substitute for solid wood and to overcome the problem of environmental waste.

Background

Oil palm stem waste is a by-product of the oil palm industry, which is a significant contributor to the global economy. However, the waste generated from this industry is often discarded, leading to environmental problems. On the other hand, plastic polypropylene (PP) is a widely used plastic material that is often used in packaging and other applications. However, the disposal of PP waste has become a significant environmental concern. By utilizing oil palm stem waste and PP as raw materials for composite boards, it is possible to reduce waste and create a sustainable alternative to solid wood.

Methodology

The methodology used in this study involves the production of composite boards using oil palm stem waste and PP as raw materials. Maleated Polypropylene (MAPP) was added as much as 5% of the weight of PP to increase the compatibility between these materials. The manufacturing process followed the standard JIS A 5908 (2003), with a ratio between plastic and waste particles of 50:50, 60:40, and 70:30, and compressed at a pressure of 30 kgf/cm² at 175 ° C for 15 minutes.

Analysis of Physical and Mechanical Properties

The physical and mechanical properties of the composite board were evaluated based on JIS A 5908 (2003) standards. The following are the results of the test obtained:

Physical Nature

Density: The density value obtained ranges from 0.70 to 0.87 gr/cm³, which meets standardization.
Water Content: Although the value of water content ranges from 0.32 to 1.61% is below standard, this is a good result given the hydrophobic nature of PP, which contributes to the resistance to humidity.
Water Absorption: Water absorption is tested in two durations. Within 2 hours, the absorption value ranges from 0.25 to 1.22%, and within 24 hours is between 0.25 to 1.52%. This shows the material ability to hold water, even though the value tends to be low.
After 2 hours, increased between 0.07 to 0.28%, and after 24 hours, showing changes between 0.22 to 0.92%.

Mechanical Properties

Modulus of Elasticity (MOE): There are two MOE values namely wet and dry. Unfortunately, the MOE value obtained, around 1.10 × 10^4 to 1.30 × 10^4 kgf/cm², does not meet the criteria set by the standard.
Modulus Rupture (MOR): MOR is also tested in wet and dry conditions. The wet MoE value ranges from 94.79 to 256.25 kgf/cm², while the dry MOE value ranges from 114.50 to 211.58 kgf/cm². Both meet the applicable standards. 3 This shows that although the composite board has a variety of good properties, the aspect of resistance to mechanical loads still needs to be improved.

Conclusion

Utilization of pure palm oil and plastic stem waste as a composite board material with the addition of maleated polypropylene has good potential in overcoming the problem of solid wood substitution and environmental waste. The results showed various physical and mechanical properties that can compete with conventional material, although there are several aspects that still need to be considered, such as modulus of elasticity and the strength of the screw handle. This research opens the way for further innovation in the development of environmentally friendly and sustainable composite materials.

Recommendations

Based on the results of this study, the following recommendations are made:

Further research is needed to improve the mechanical properties of the composite board, particularly the modulus of elasticity.
The addition of other materials, such as natural fibers or other types of plastics, may be explored to improve the properties of the composite board.
The production process of the composite board should be optimized to reduce waste and improve the efficiency of the manufacturing process.

Future Directions

This study has opened up new avenues for research in the development of environmentally friendly and sustainable composite materials. Future research should focus on improving the mechanical properties of the composite board, exploring new materials and production processes, and developing new applications for this material.
Frequently Asked Questions (FAQs) about Utilization of Palm Oil Palm Waste and Pure Polypropylene Plastic as a Composite Board

Q: What is the main objective of this study?

A: The main objective of this study is to investigate the potential of using oil palm stem waste and plastic polypropylene (PP) as raw materials for composite boards, with the aim of overcoming the problem of solid wood substitution and environmental waste.

Q: What are the benefits of using oil palm stem waste and PP as raw materials for composite boards?

A: The benefits of using oil palm stem waste and PP as raw materials for composite boards include reducing waste, conserving natural resources, and creating a sustainable alternative to solid wood.

Q: What is the role of Maleated Polypropylene (MAPP) in the production of composite boards?

A: MAPP is added as much as 5% of the weight of PP to increase the compatibility between these materials, which is essential for the production of high-quality composite boards.

Q: What are the physical and mechanical properties of the composite board produced in this study?

A: The physical and mechanical properties of the composite board produced in this study include density, water content, water absorption, modulus of elasticity (MOE), and modulus rupture (MOR). The results showed that the composite board has good physical properties, but its mechanical properties need to be improved.

Q: What are the limitations of the composite board produced in this study?

A: The limitations of the composite board produced in this study include its low modulus of elasticity (MOE) and modulus rupture (MOR) values, which need to be improved for it to be used as a substitute for solid wood.

Q: What are the future directions for this research?

A: The future directions for this research include improving the mechanical properties of the composite board, exploring new materials and production processes, and developing new applications for this material.

Q: How can the production process of the composite board be optimized to reduce waste and improve efficiency?

A: The production process of the composite board can be optimized by using advanced manufacturing techniques, such as injection molding or extrusion, and by implementing waste reduction strategies, such as recycling and reusing materials.

Q: What are the potential applications of the composite board produced in this study?

A: The potential applications of the composite board produced in this study include furniture making, construction, and packaging. However, further research is needed to determine its suitability for these applications.

Q: How can the composite board be made more durable and resistant to mechanical loads?

A: The composite board can be made more durable and resistant to mechanical loads by adding other materials, such as natural fibers or other types of plastics, and by optimizing the production process to improve its mechanical properties.

Q: What are the economic benefits of using oil palm stem waste and PP as raw materials for composite boards?

A: The economic benefits of using oil palm stem waste and PP as raw materials for composite boards include reducing waste disposal costs, conserving natural resources, and creating a new market for oil palm stem waste and PP.