How does nanographene change the performance of polyester thermal melt?

How does nanographene change the performance of polyester thermal melt?
In the modern textile industry, polyester thermal melt has attracted much attention due to its unique properties and wide application. With the continuous advancement of science and technology, nanotechnology has gradually been introduced into the modification of textile materials. Among them, nanographene, as a new type of two-dimensional nanomaterial, has shown great application potential. This article will explore in depth how nanographene changes the performance of polyester thermal melt and the impact of this change on the textile industry.

1. Characteristics of nanographene
Nanographene is a two-dimensional nanomaterial composed of carbon atoms arranged in a hexagonal lattice, which has many excellent properties:
(I) High thermal conductivity
Nanographene has extremely high thermal conductivity and can effectively conduct and disperse heat, which is of great significance in the thermal management of textiles. For example, in sportswear, the high thermal conductivity of nanographene can help athletes maintain the body’s thermal balance during high-intensity exercise and improve athletic performance.
(II) High strength and toughness
Nanographene has extremely high strength and good toughness, which can significantly enhance the mechanical properties of polyester thermal melt. Studies have shown that the breaking strength of polyester hot melt wire with nanographene added is 60% higher than that of ordinary polyester hot melt wire. This means that under the same tensile force, polyester hot melt wire with nanographene added is less likely to break and can better meet the needs of high-strength textiles.
(III) Excellent conductivity
Nanographene has good conductivity and can give polyester hot melt wire antistatic properties. This property is particularly important in electronic textiles and smart clothing. For example, when making antistatic work clothes, adding nanographene can effectively prevent the generation of static electricity and reduce the harm of static electricity to electronic equipment and human body.
(IV) Good barrier properties
The sheet structure of nanographene can effectively hinder the penetration of gas and liquid, giving polyester hot melt wire good barrier properties. This has broad application prospects in textiles with special functions such as waterproof, windproof, and warm. For example, in outdoor clothing, polyester hot melt wire with nanographene added can effectively block external moisture and cold air, improving the comfort and warmth of clothing.

2. Application of Nanographene in Polyester Thermofusible Wire
(I) Improving the Flame Retardant Properties of Polyester Thermofusible Wire
Nanographene can significantly improve the flame retardant properties of polyester thermofusible wire. Its lamellar structure forms a dense heat-insulating barrier when heated, effectively preventing the spread of flames. Experimental data show that after adding 1% nanographene by mass, the limiting oxygen index (LOI) value of polyester thermofusible wire increased by 12%, and the total smoke production decreased by 30%. This means that in emergency situations such as fire, polyester thermofusible wire with nanographene added can better resist the erosion of flames and improve the safety of textiles.
(II) Enhancing the Mechanical Properties of Polyester Thermofusible Wire
The high strength and toughness of nanographene can significantly enhance the mechanical properties of polyester thermofusible wire. In practical applications, polyester thermofusible wire with nanographene added can be used to manufacture high-strength ropes, safety belts and other products. These products can maintain good stability and reliability when subjected to large tensile forces, improving the service life and safety of the products.
(III) Imparting antistatic properties to polyester hot melt wire
The conductivity of nanographene can impart antistatic properties to polyester hot melt wire. In the electronics industry and medical field, the demand for textiles with strict requirements for antistatic properties is increasing. For example, in electronic workshops and operating rooms, antistatic work clothes made of polyester hot melt wire with nanographene added can effectively prevent static electricity from damaging electronic components and medical equipment, and ensure the safety and stability of the working environment.
(IV) Improving the thermal stability of polyester hot melt wire
Nanographene can improve the thermal stability of polyester hot melt wire. Under high temperature conditions, polyester hot melt wire with nanographene added can maintain good structural integrity and is not prone to thermal decomposition and deformation. This has important application value for textiles that need to be used under high temperature conditions, such as industrial filter cloth, high temperature protective clothing, etc.

III. Production process of nanographene-modified polyester hot melt wire
(I) Melt spinning method
The melt spinning method is to directly incorporate nanographene into the polymer matrix during the production stage of polyester hot melt wire, and make fibers with excellent performance through the spinning process. The specific steps include:
Nanomaterial pretreatment: Surface modification of nanographene to improve its compatibility with the polymer matrix. Common modification methods include silane coupling agent treatment and ultrasonic dispersion.
Co-extrusion: The modified nanographene is mixed with PET chips in a certain proportion and melt-blended through a twin-screw extruder.
Spinning: The blended melt is fed into the spinning machine, and after metering, filtering and spinneret extrusion, the nascent fiber is formed.
Stretching and shaping: The nascent fiber is subjected to multi-stage stretching and heat-setting treatment to obtain the final high-performance polyester hot melt.
During the production process, key parameters such as the content, melting temperature, and stretching multiple of nanographene need to be strictly controlled to ensure the uniform distribution of nanographene and the stable performance of fiber performance.
(II) Surface coating method
The surface coating method is to make nanographene into a coating and evenly coat it on the surface of polyester hot melt. The advantage of this method is that it is simple to operate and can quickly give polyester hot melt new functional properties. For example, when manufacturing UV-resistant outdoor clothing, nanographene coating can be applied to the surface of polyester hot melt wire by surface coating to improve its UV resistance.

IV. Application cases of nanographene-modified polyester hot melt wire
(I) Sportswear field
In sportswear, polyester hot melt wire with nanographene added is used to manufacture high-performance sports equipment. Its high thermal conductivity can help athletes maintain the body’s thermal balance during exercise and reduce discomfort caused by overheating or overcooling. At the same time, the enhanced mechanical properties and antistatic properties also make sportswear more durable and comfortable, improving athletes’ sports performance and wearing experience.
(II) Industrial protection field
In the field of industrial protection, polyester hot melt wire with nanographene added is used to manufacture high-temperature protective clothing and industrial filter cloth. These products can maintain good structural stability and barrier properties in high temperature environments, effectively protecting workers from high temperatures and harmful substances. For example, in high-temperature working environments such as steel mills and chemical plants, protective clothing made of polyester hot melt wire modified with nanographene can significantly improve workers’ safety and work efficiency.
(III) Electronic Textiles
In the field of electronic textiles, polyester hot melt wire with added nanographene is used to manufacture smart clothing and antistatic work clothes. Its excellent conductive properties can achieve seamless integration of electronic components and textiles, and develop smart clothing with functions such as health monitoring and communication. At the same time, the antistatic property can also effectively prevent static electricity from damaging electronic equipment and ensure the normal operation of electronic textiles.

V. Summary
As a new type of two-dimensional nanomaterial, nanographene has significantly changed the performance of polyester hot melt wire through its unique physical and chemical properties. From improving flame retardant properties, enhancing mechanical properties to imparting antistatic properties and improving thermal stability, the application of nanographene has opened up new application prospects for polyester hot melt wire in many fields. With the continuous development of nanotechnology and the optimization of production processes, nanographene-modified polyester hot melt wire will play an increasingly important role in the textile industry, bringing more convenience and safety guarantees to people’s lives and industrial production.