New class of thermoplastic elastomer. Blend of HDPE and reclaimed rubber

In this research work TPE has been constructed by using High density polyethylene (HDPE) and Whole tire reclaimed rubber (RR). Optimized ratio of 50:50 HDPE: RR has been employed for the survey. Gamma irradiation and conventional chemical crosslinking with crosslinking coagent method were used to form a product. Results for gamma irradiation at 200KGy have been established for the best attributes.Waste management is an important issue of the 21st century. In India out of total waste generated every day; nearly 12-15% consists of polymeric waste. In this waste rubber content huge amount of itself due to growing automobile sector. It is hard to manage rubber waste as it’s not biodegradable and may be harmful to human organism. So the safe method is to reuse it as it is or by reclamation. Incorporation of this waste in the polymeric blends to form a thermoplastic elastomer (TPE) is the best way to utilize rubber waste. Thermoplastic materials like PE, PP, and PVC are cheap and widely available material to utilize for such determinations. The aim of project was to improve the overall properties of HDPE/ Reclaimed Rubber blend system and form a good example of new class of TPE. Blend of
HD and reclaimed rubber shows drastic enhancement in properties which can be used in automobile and other sectors.

Inhaltsverzeichnis (Table of Contents)

• 1.0 INTRODUCTION.
• 2.0 LITERATURE SURVEY
• 2.1 Recycling of Rubber Wastes:
• 2.1.1 Rubber recovery:
• 2.1.2 Why recovery or Reclaimation??
• 2.1.3 Rubber Reclaimation:.
• 2.1.4 Advantages of using Reclaimed Rubber:
• 2.1.5 Rubber recycling by blending with plastics:.
• 2.2 High Density Polyethylene (HDPE).
• 2.2.1 Toughening HDPE with elastomers:.
• 2.3 Polymer Blend: ..
• 2.3.1 Thermoplastic Elastomers (TPE):
• 2.3.2 Classification of TPE:
• 2.3.3 Advantages and disadvantages of TPE:
• 2.4 Crosslinking Methods:
• 2.4.1 Peroxide crosslinking:.
• 2.4.2 Radiation Crosslinking:.
• 2.5 Need of Coagent:
• 2.5.1 Classification of coagent:
• 2.5.2 Coagent role in network formation:
• 2.5.3 Coagent Selection:.
• CHAPTER 3 EXPERIMENTAL ..............
• 3.0 Experimental:
• 3.1 Raw Material:
• 3.2 Preparation of TPEs with varying HDPE & Reclaimed rubber ratio (SCHEME 1)
• 3.3 Preparation of TPEs with varying Triallyl Cyanurate (TAC) ratio (SCHEME 2):
• 3.4 Preparation of TPEs by Gamma Irradiation process with varying Triallyl Cyanurate (TAC) ratio (SCHEME 3):
• 3.5 Preparation of TPEs by Chemical crosslinking process with varying Triallyl Cyanurate (TAC) ratio (SCHEME 4):
• 3.6 TESTING PROCEDURES:
• 3.6.1 Mechanical Properties:
• A. Tensile Strength: ...
• B. Hardness (Shore D).
• C. Charpy Impact Test:.
• 3.6.2 Physical Properties:
• A. Gel Content:.
• 3.6.3 Thermal properties:
• A. Differential Scanning Calorimetry (DSC) Test:
• 3.6.4 Rheological Analysis:....
• 3.6.5: Morphological Analysis: .
• CHAPTER 4 RESULTS & DISCUSSIONS
• 4.0 Results & Discussions:.
• 4.1 SCHEME 1:
• 4.1.1 Mechanical Properties:
• A. Tensile Strength:
• B. Hardness (Shore D):.
• C. Charpy Impact Strength: ..
• 4.1.2 Physical Analysis:
• C. Gel Content:
• 4.1.3 Thermal Analysis...
• A. Differential Scanning Calorimetry (DSC) Test:.
• 4.1.4 Morphological Analysis:.
• 4.2 SCHEME 2
• 4.2.1 Mechanical Properties:
• A. Tensile Strength:
• B. Shore D Hardness:
• C. Charpy Impact Strength: ..
• 4.2.2 Physical Analysis:
• 4.2.3 Thermal Analysis.
• A. Differential Scanning Calorimetry (DSC) Test:
• 4.2.4 Rheological Analysis:..
• 4.2.5 Morphological Analysis:
• 4.3 SCHEME 3:.
• 4.3.1 Mechanical Properties:
• A. Tensile Strength: .
• B. Shore D Hardness:
• C. Charpy Impact Strength:
• 4.3.2 Physical Analysis:
• 4.3.3 Thermal Analysis...........
• A. Differential Scanning Calorimetry (DSC) Test:
• 4.3.4 Rheological Analysis:.
• 4.3.5 Morphological Analysis:
• 4.4 SCHEME 4..
• 4.4.1 Mechanical Properties:
• A. Tensile Strength:
• B. Shore D Hardness
• C. Charpy Impact Strength:
• 4.4.2 Physical Analysis: .
• 4.4.3 Thermal Analysis...
• A. Differential Scanning Calorimetry (DSC) Test:.
• 4.4.4 Rheological Analysis:..

Zielsetzung und Themenschwerpunkte (Objectives and Key Themes)

The research aims to develop a new class of thermoplastic elastomer (TPE) by blending high-density polyethylene (HDPE) and reclaimed rubber (RR). This study explores the potential of using rubber waste to create a sustainable material with valuable properties. The study aims to investigate the impact of different crosslinking methods and coagent ratios on the mechanical, physical, thermal, and morphological characteristics of the TPE.

• Recycling and utilization of rubber waste.
• Development of thermoplastic elastomers (TPE) with improved properties.
• Influence of crosslinking methods on TPE characteristics.
• Optimization of coagent ratios in TPE production.
• Evaluation of mechanical, physical, thermal, and morphological properties.

Zusammenfassung der Kapitel (Chapter Summaries)

The research begins with an introduction outlining the importance of waste management and the potential of using recycled materials to develop new products. Chapter 2 provides a comprehensive literature review covering various aspects related to rubber recycling, HDPE, TPEs, crosslinking methods, and coagent selection. This chapter establishes a solid foundation for the subsequent experimental investigation.

Chapter 3 describes the experimental methodology employed to develop the TPEs, including the raw materials used, preparation of TPEs with varying HDPE & Reclaimed rubber ratios, the use of Triallyl Cyanurate (TAC) as a coagent, and gamma irradiation and chemical crosslinking processes. The chapter also details the testing procedures used to assess the mechanical, physical, thermal, and morphological properties of the TPEs.

Chapter 4 presents the results and discussions of the research. The chapter analyzes the mechanical properties, including tensile strength, hardness, and Charpy impact strength, as well as the physical, thermal, and morphological characteristics of the TPEs. The results are discussed in detail, highlighting the effects of different HDPE & Reclaimed rubber ratios, TAC ratios, and crosslinking methods on the overall properties of the TPEs.

Schlüsselwörter (Keywords)

The key areas of focus in this research are the development of thermoplastic elastomers (TPE) using recycled rubber, specifically reclaimed rubber. The study investigates the effects of gamma irradiation and conventional chemical crosslinking methods on the properties of the TPEs, including their mechanical, physical, thermal, and morphological characteristics. The use of Triallyl Cyanurate (TAC) as a coagent is also explored. Key terms include: Gamma irradiation, thermoplastic elastomers, reclaimed rubber blends, crosslinking methods, and coagents.

Details

• Grade: AB
• Authors: Prof. Mehul Patel (Author), Prof. Amar Arakh (Author), Prof. Pathik Shah (Author)
• Publication Year: 2014
• Pages: 91
• Catalog Number: V383428
• ISBN (eBook): 9783668610842
• ISBN (Book): 9783668610859
• Language: English
• Tags: blend hdpe