Summary
This paper conducts research on the performance optimization and application of sealants. The key factors affecting the performance of the sealants were explored by analyzing the composition, characteristics and application areas of the sealant. Research focuses on the selection and optimization of adhesives, substrates and additives, as well as the improvement of production processes. The results showed that the adhesive strength, resistance to natural weathering and environmental protection of the optimized sealant were significantly improved. This study provides theoretical basis and practical guidance for the performance improvement of packing glue and the development of new products, which is of great significance to promote the development of the packaging industry.
* * Keywords * * Sealing tape; Bonding strength; Resistance to natural weathering; Environmental performance; Production process; Performance Optimization
Introduction
As an indispensable material in the modern packaging industry, the performance of packing glue directly affects the quality of packaging and transport safety. With the rapid development of e-commerce and the increasingly stringent environmental requirements, higher requirements have been put forward for the performance of packing glue. The purpose of this study is to improve the comprehensive performance of sealants by optimizing the composition and production process of sealants to meet market demand.
In recent years, scholars at home and abroad have conducted extensive research on packing glue. Smith et al. studied the effects of different adhesives on the performance of sealants, while Zhang's team focused on the development of environmentally friendly sealants. However, research on the comprehensive optimization of sealant performance is still insufficient. This article will start from materials selection, formulation optimization and production process improvement, and systematically explore the ways to improve the performance of packing glue.
I. Composition and characteristics of packing glue
The sealant mainly consists of three parts: adhesive, substrate and additive. Adhesives are the core ingredients that determine the properties of sealants, and they are commonly found in acrylic, rubber and silicone. The substrate is usually a polypropylene film or paper, and its thickness and surface treatment will affect the mechanical properties of the tape. Additives include plasticizers, fillers and antioxidants to improve the specific properties of tape.
The properties of sealant mainly include adhesion, initial adhesion, holding adhesion, resistance to natural weathering and environmental protection. The bond strength determines the binding force between the tape and the adhesive, and is an important indicator of the performance of the sealant. The initial viscosity affects the initial adhesion ability of the tape, while the viscosity of the tape reflects its long-term stability. The resistance to natural weathering includes high temperature resistance, low temperature resistance and moisture resistance. Environmental protection focuses on the degradable and non-toxic properties of duct tape, which meets the sustainable development requirements of modern packaging materials.
II. Application areas of sealants
Sealants are widely used in packaging in various industries. In logistics, high-strength sealants are used to secure heavy-duty cartons and ensure the safety of goods in long-distance transport. E-commerce packaging requires that sealants have good initial viscosity and hold adhesion to cope with frequent sorting and handling. In the field of food packaging, it is necessary to use environmentally friendly sealants to ensure food safety and hygiene.
In special environments, the application of sealants is more challenging. For example, in cold chain logistics, packing glue needs to have excellent temperature resistance; In high temperature and humidity storage environments, the tape is required to have good thermal resistance. In addition, some special industries such as electronics and pharmaceutical packaging place higher requirements on the electrostatic protection and antibacterial properties of sealants. These diverse application needs drive the continuous innovation and development of sealant technology.
III. Research on the optimization of sealant performance
In order to improve the comprehensive performance of sealants, this study looks at three aspects of material selection, formulation optimization and production process. In the selection of adhesives, the properties of three materials, acrylic, rubber and silicone, were compared, and acrylic had an advantage in comprehensive properties. The performance of the acrylic adhesive was further optimized by adjusting the monomer proportion and molecular weight.
The optimization of substrates focuses mainly on thickness and surface treatment.The experiment shows that the 38μm thick biaxially oriented polypropylene film achieves the best balance between strength and cost.The surface electrode treatment significantly improves the surface energy of the substrate and enhances the bonding force with the adhesive. Natural plasticizers were used instead of traditional petroleum-based materials, and nano-SiO2 was added to improve the resistance to heating.
Improvements in the production process include the optimization of the coating method and the control of the curing conditions.Using micro-gravure coating technology, the uniform coating of adhesive is realized, and the thickness is controlled at 20 ± 2 μm.Studies of the temperature and time of curing have shown that curing at 80 ° C for 3 minutes yields the best performance.As a result of these optimizations, the adhesive strength of the sealant was increased by 30%, the resistance to natural weathering was significantly enhanced, and the VOC emission was reduced by 50%.
IV. CONCLUSIONS
This study significantly improved its comprehensive performance by systematically optimizing the composition and production process of the sealant. The optimized sealant has reached the industry leading level in terms of adhesion, resistance to natural weathering and environmental protection. The research results provide theoretical foundation and practical guidance for the performance improvement of sealants and the development of new products, and are of great significance for promoting the technological progress and sustainable development of the packaging industry. Future research can further explore new environmentally friendly materials and intelligent production processes to meet increasingly stringent environmental protection requirements and personalized packaging needs.
Post time: Feb-18-2025
