Battery cooling, battery life extension, phase change microcapsule material

Product Overview

Description

Application of phase change microcapsules

in the field of electronic products

 

About the company

Hangzhou Feijie Technology Co., Ltd. was established in December 2008. The company name "Feijie" takes the homonym of phase change material (PCM-Phase Change Material). It is the first professional research and development of phase change material technology in China. Production of high-tech companies. The company introduced the University of California, Irvine, Zhejiang University, and is at the forefront of international microcapsule technology and gas condensation technology. In 2016, our company was awarded the “National Green Textile Material Phase Change Microcapsule R&D Center” by the China Textile Engineering Society, and participated in the drafting of “National Standards for Textile Phase Change Thermostat Microcapsules and Their Application Functions Evaluation”. In 2016, phase change materials shipped to 8,000 tons, making it the largest supplier of phase change materials in Asia. At present, it has obtained 8 invention patents and a number of utility model patents.

    

 

PCM - Phase Change Material is a widely used thermal energy storage material that utilizes heat and heat release during the phase change (solid-liquid-solid) process to store and release thermal energy. Thereby achieving the purpose of controlling the ambient temperature and performing heat exchange. Phase change materials are divided into organic and inorganic categories.

In the case of solid-liquid phase, when the solid phase change material is heated to the melting point, a phase change from solid to liquid is produced. During the melting process, the phase change material absorbs and stores a large amount of latent heat, and the temperature of the material itself remains constant;

 

Problems and difficulties in

applying to electronic products                                                solution                  

 

Liquid material loss

Flame retardancy                                                                                     Microencapsulation

Dielectric properties

 

 

Microcapsule technology

 

 

      Microcapsule technology is a technique in which a solid or liquid is coated with a film-forming material into particles having a core-shell structure, and the obtained microparticles are called microcapsules.

The microcapsule phase change material is a novel composite phase change material with a core-shell structure formed by coating a surface of a solid-liquid phase change material particle with a stable polymer film by using a microcapsule technology. Phase change material microcapsules typically have a particle size of from 2 to 15 microns. The preparation technology of microcapsules originated from the actual 50s of the 1950s, and it developed rapidly in the mid-1970s. During this period, microencapsulated products and processes appeared. For example, drugs, enzymes, perfumes, catalysts, dyes and other products are all encapsulated in microencapsulated form.

Phase change microcapsule structure diagram

 

Phase change microcapsules borrow this technology to disperse the phase change material into spherical small particles, and then encapsulate a layer of stable shell material on the surface to form phase change microcapsules. The technique of microencapsulating phase change materials solves the problems and difficulties in the application (liquid material loss, corrosivity, volume change rate, etc.). The core material of the phase change microcapsule - the phase change material becomes liquid when it absorbs heat, but the outer shell is still solid, so the shape of the material is still solid particles.

 

 

Partial phase change microcapsule technical parameters

Model		Melting point (°C)	Latent heat  (j/cc)	density (1.0×10^3kg/m^3)
2018-01-20	MPH-37	37	220	1.2
	MPH-42	42	220	1.2
2018-12	MPH-37	37	260	1.3
	MPH-42	42	260	1.3
2019-12	MPH-37	37	280	1.35
	MPH-42	42	280	1.35

 

 

 Performance Testing

 

Product display

 

                 

 

 

 

 

 

                  

 

Hangzhou Feijie Technology Co., Ltd.

Hangzhou Leming Technology Co., Ltd. (manufacturer)

Address: Longshan Industrial Park, Wenyu Town, Xiaoshan District, Hangzhou, Zhejiang, China