Experimental Investigations to Promote Better Adaptability of Safety Helmets Using Jute Fiber Reinforced Polyester Composites– A Waste Utilization Approach

ABSTRACT

Injuries and accidents that occur in the workplace are also due to improper usage of Personal Protective Equipment’s (PPE). This research made an attempt to investigate the behavior and attitude of the worker toward PPE. Risk associated with the non-usage of PPE is quantified using the likelihood and severity values of the hazards and it is found that safety helmets have higher risk value of 28. A qualitative approach say face-to-face interviews done to know the underlying reasons for avoiding the use of safety helmets and it is identified that discomfort is the major reason behind the negligence of safety helmets. In order to address this issue jute reinforced polyester composite helmet is fabricated with 44% of jute fiber and the remaining percentage of polyester resin using hand lay-up technique. Shock absorption test in the composites (44% of fiber and 56% of polyester) exhibited cracks on the top layer of the shell, so in order to further enhance the strength of composites bio char of 5% and 10% is added as filler and it is noted that the biochar-based helmet shows improved strength. The results satisfy the requirements as mentioned in Indian standards and helps in environmental sustainability.

摘要

工作场所发生的伤害和事故也是由于个人防护设备（PPE)使用不当造成的. 本研究试图调查工人对个人防护用品的行为和态度. 使用危险的可能性和严重性值对与不使用PPE相关的风险进行量化,发现安全帽具有较高的风险值28. 定性的方法是通过面对面访谈了解避免使用安全帽的根本原因,并确定不适是安全帽疏忽的主要原因. 为了解决这一问题,黄麻增强聚酯复合头盔是用44%的黄麻纤维和剩余百分比的聚酯树脂,采用手糊工艺制成的. 在复合材料（44%的纤维和56%的聚酯)的冲击吸收试验中,外壳表层出现裂纹,因此为了进一步提高复合材料的强度,添加了5%和10%的生物炭作为填料,并指出生物炭基头盔的强度有所提高. 结果满足印度标准中提到的要求,有助于环境可持续性.

KEYWORDS:

• Jute
• bio char
• polyester
• helmets
• safety
• sustainability

关键词:

• 关键词: 黄麻
• 生物炭
• 聚酯纤维
• 头盔
• 安全
• 持续性

Disclosure statement

The authors declare that they have no conflict of interest.

Additional information

Funding

This research receives no specific grant from any funding agency.