Phase change temperature-regulating fiber, phase change yarn, air-conditioning fiber, constant temperature yarn, L-PCM light air

Phase Change Materials (PCM) are materials that can change phase (solid, liquid, gas) at specific temperatures and provide latent heat. The process of changing the phase of a substance is called a phase transition process, during which the phase change material absorbs or releases a large amount of latent heat, thereby achieving the function of cold storage or heat storage.

PCM was first used in the National Aeronautics and Space Administration (NASA) lunar landing program. It was developed as a new material for the astronaut suit system to create comfortable body sensations and balance body temperature, and it can automatically adjust the temperature to cope with the extremely hot and cold, drastically changing environment in space. This technology began in 1987, when NASA Johnson Space Center cooperated with private enterprises to develop phase change materials for extravehicular spacesuits, especially astronaut gloves. With the assistance of TRDC Company, NASA successfully applied textile materials containing phase change microcapsules (mPCM) to spacesuits. The core substance of PCM, phase change microcapsules, use microencapsulation technology to encapsulate phase change materials (core materials) in tiny capsule particles, avoiding the impact of the external environment on the phase change materials. When these materials change from solid to liquid or vice versa, they can absorb or release heat while the temperature remains almost unchanged, thereby achieving the effect of automatic temperature regulation.

Light Air Phase Change Temperature-Regulating Fiber

01What is Phase Change Temperature-Regulating Fiber

Light Air Phase Change Temperature-Regulating Fiber is a smart temperature management fiber developed by Shandong Rare Technology Development Co., Ltd. by using aerospace technology phase change materials and fiber substrates through unique nanoconfinement encapsulation and polymerization technologies. It combines intelligent temperature control and bidirectional temperature regulation, effectively preventing "cold-heat" stress reactions and meeting the requirements of body comfort. Light Air phase change temperature-regulating fiber can not only provide cool feeling in summer, but also be used for heat storage and warmth retention in winter.

02Working Principle of Phase Change Temperature-Regulating Fiber

Heat Absorption Process:

When the ambient temperature rises, the phase change material begins to change from solid to liquid. During this process, the phase change material absorbs the surrounding ambient heat and stores it as latent heat. For example, in the hot summer, the human body generates a lot of heat, and the phase change material in the Light Air phase change temperature-regulating fiber absorbs these calories, thereby lowering the temperature around the human body and making people feel cool. This heat absorption process can effectively alleviate the impact of high temperature on the human body and improve human comfort.

Heat Release Process:

When the ambient temperature drops, the phase change material begins to change from liquid to solid. During this process, the phase change material releases the previously stored latent heat and releases heat to the surrounding environment. For example, in the cold winter, the phase change material in the Light Air phase change temperature-regulating fiber releases heat, providing extra warmth for the human body and maintaining the stability of the human body temperature. This heat release process can resist the cold to a certain extent and reduce the loss of human body heat.

Light Air phase change temperature-regulating fiber uses the phase transition characteristics of unique phase change materials to absorb or release heat when the temperature changes, realizing bidirectional intelligent temperature regulation, and providing excellent comfortable body sensation for people in complex and changeable temperature environments.

03Product Advantages of Phase Change Temperature-Regulating Fiber

(1)Ultra-high Performance

It has excellent properties such as high enthalpy value, high energy storage, low supercooling, and high temperature resistance, and is suitable for use in low and high temperature environments;

(2) Ecological Antibacterial

The key phase change raw materials are derived from biological substrates, which are ecologically safe and have efficient physical antibacterial properties, which are beneficial to the human body;

(3) Long-lasting Effect

The unique phase change microcapsule technology has high washing resistance and damage resistance, can be recycled, and the physical effect lasts;

(4) Intelligent Regulation

It can intelligently adjust the temperature of the microenvironment between the skin and the human body according to changes in air temperature, reducing energy consumption and carbon emissions;

(5) Bidirectional Temperature Control

Through the solid-liquid bidirectional conversion, it continuously absorbs and releases heat, producing a thermal shielding effect, and efficiently performing cold/heat management on human skin;

Wide Range of Application Fields

01Apparel Field: Create a Comfortable Wearing Experience

In terms of daily wear, Light Air phase change temperature-regulating fiber can sensitively perceive changes in the external ambient temperature. When the scorching summer comes and the external temperature rises, the phase change material in the fiber will quickly absorb the excess heat generated by the human body, just like an invisible small air conditioner, allowing people to stay cool and comfortable; while in the cold winter, the phase change material will release the previously stored heat, just like a thoughtful small heater, protecting people from the severe cold and reducing the trouble of frequently adding and removing clothes.

For outdoor sports enthusiasts, when carrying out activities such as mountaineering and hiking, the ambient temperature is complex and changeable. The sports clothing made of Light Air phase change temperature-regulating fiber can quickly adapt to this change. From the low-temperature foot of the mountain to the high-temperature mountain top during the climbing process, it can adjust body temperature in time, allowing athletes to maintain physical comfort and stability, and effectively reducing the risk of fatigue and injury caused by temperature discomfort.

For special professional clothing, they also benefit from Light Air phase change temperature-regulating fiber. For example, when firefighters perform tasks, they will face high-temperature scorching from raging fires. After adding phase change temperature-regulating fiber to their protective clothing, it can absorb a large amount of heat and lower the surface temperature of the clothing, greatly reducing the possibility of heat stroke and burns; polar expedition personnel are in the extremely cold environment of ice and snow, and the clothing containing Light Air phase change temperature-regulating fiber can continuously provide warmth for them, ensuring the smooth progress of their work.

In the home textile field, Light Air phase change temperature-regulating fiber also plays an important role. When applied to bedding such as sheets, quilt covers and pillowcases, it can accurately adjust according to the body temperature changes during human sleep. When people fall asleep, the body metabolizes and generates heat, and the body temperature gradually rises. At this time, the phase change material will absorb the excess heat, making people feel cool and comfortable; when the body temperature drops in the middle of the night, the phase change material will release heat to keep warm, which helps to improve sleep quality and allow people to have a peaceful night.

In the cold winter, phase change temperature-regulating blankets have become intimate companions for people. It can absorb excess heat when in contact with the human body, avoiding discomfort caused by overheating; when the human body leaves, it can slowly release heat to maintain the temperature of the blanket, so that people will not feel cold when using it again, providing continuous warmth.

03Medical and Healthcare Field: Assist Rehabilitation and Nursing

In the medical and healthcare field, Light Air phase change temperature-regulating fiber has brought many conveniences to patients and medical staff. In terms of rehabilitation nursing, some patients are sensitive to temperature. Using rehabilitation products such as knee pads and waist guards made of Light Air phase change temperature-regulating fiber can intelligently adjust according to the temperature changes of the local part of the patient's body. When the local temperature is too high, it absorbs heat; when the temperature is too low, it releases heat, promoting blood circulation and relieving pain, which is helpful for the patient's recovery.

In hospital operating rooms and wards, for some patients with high temperature requirements, such as newborns, the elderly, etc., the medical clothing made of Light Air phase change temperature-regulating fiber can provide them with a stable and suitable temperature environment, protecting their physical health and assisting the smooth development of medical nursing work.

In the aerospace field, Light Air phase change temperature-regulating fiber plays an irreplaceable role. The space environment is extremely harsh, with drastic temperature changes. When a spacecraft is in the area directly irradiated by the sun, the temperature can reach more than 100 degrees Celsius; while when it enters the backlit side, the temperature will plummet to more than minus 100 degrees Celsius.

The spacesuits worn by astronauts use phase change temperature-regulating fiber, which can effectively cope with this extreme temperature change. When the temperature outside the spacesuit rises to the melting point of the phase change material, the phase change material changes from solid to liquid, absorbing a large amount of heat, preventing astronauts from heat stroke or impaired body functions due to high temperature. When the temperature drops to the freezing point of the phase change material, the phase change material changes from liquid to solid, releasing the previously stored heat, maintaining the body temperature of the astronauts, avoiding hypothermia in the cold environment, and ensuring the life safety and normal work of the astronauts in space. In addition, the application of phase change temperature-regulating fiber in the interior decoration materials of spacecraft can also adjust the temperature inside the cabin, creating a relatively stable and comfortable working and living environment for astronauts.

In the automotive field, the use of Light Air phase change temperature-regulating fiber in car seats and interiors can improve the temperature comfort inside the car. In the hot summer, it can lower the surface temperature of the seats and avoid scalding; in the cold winter, it provides warmth, reducing the discomfort caused by the low temperature inside the car to passengers, and also reducing the load of the car's air conditioning system and reducing energy consumption.

In the construction field, adding Light Air phase change temperature-regulating fiber to building insulation materials can adjust the indoor temperature. When the indoor temperature rises, the fiber absorbs heat; when the temperature drops, it releases heat, reducing the frequency of air conditioning and heating use, reducing energy consumption, achieving the goal of energy conservation and emission reduction, and also improving the comfort of indoor living.