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Phase change energy storage thermoplastic composite material and preparation method thereof

A composite material and phase change energy storage technology, which is applied in the field of thermoplastic elastomers, can solve the problems of whether the capsule can remain intact without further research, cannot flow, waste water resources, etc., and achieve good shape retention and elongation at break High, leakage rate reduction effect

Active Publication Date: 2011-05-25
KINGFA SCI & TECH CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This new type of plastic materials called Thermal Energy Storage (TES) Plastasers have several benefits compared to previous designs such as being stronger but easier for breaking down or having less flexible properties when compressed. They also allow for improved heat transfer due to their small size that allows for efficient use of space inside buildings without requiring excessive amounts of expensive equipment like fans. These improvements make TES technologies safer and cost-effective options for storing thermal power during times of low temperature conditions.

Problems solved by technology

This patented technical problem addressed in this patents relates to improving the efficiency and effectiveness of phase changes in solid state mixtures containing paraffins due to high volatility at room temperatures while maintaining compatibility between them when they enter into contact without losing fluidity.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Mix polypropylene 25%, EPDM rubber 43%, SP2045 crosslinking agent 5%, 58# paraffin 25%, antioxidant (1010) 0.2%, zinc oxide 1.3%, stearic acid 0.5% by weight Uniform, one-step dynamic vulcanization in twin-screw extrusion to prepare phase-change energy-storage thermoplastic composites. The temperature setting of the heating zone of the twin-screw extruder is: 160°C, 170°C, 180°C, 180°C, 180°C, 180°C, 180°C, 180°C, 180°C (the order is from the feed port to the machine head) , speed 500rpm.

Embodiment 2

[0048] Propylene 18%, EPDM rubber 25%, 58# paraffin 50%, 1790 antioxidant 0.1%, 168 antioxidant 0.1%, zinc oxide 1.3%, stearic acid 0.5%, cross-linking assistant agent (SnCl 2 ) 2% were mixed evenly, and the premix A was prepared by melting and kneading with an internal mixer at a temperature of 180-200° C. and a rotation speed of 30 rpm.

[0049] Mix the above premix A with 3% phenolic resin SP1045 evenly, and use twin-screw extrusion for dynamic vulcanization to prepare phase-change energy storage thermoplastic composite materials. The temperature in the heating zone of the twin-screw extruder is set at: 160°C, °C, 180°C, 180°C, 180°C, 180°C, 180°C, 180°C, 180°C (the order is from the feeding port to the machine head), the speed is 500rpm.

Embodiment 3

[0051] According to the weight, mix 5 kg of polypropylene, 13.8 kg of EPDM rubber, 70 kg of 58# paraffin, 0.2 kg of antioxidant (1790), 0.8 kg of zinc oxide, and 0.2 kg of stearic acid. Melt kneading at 200°C to prepare reaction one-step material B1.

[0052] Mix 2 kg of EPDM rubber with cross-linking aid (SnCl 2 ) 2 kg was mixed evenly, and the accelerator masterbatch B2 was prepared by melting and mixing equipment.

[0053] Mix 3 kg of EPDM rubber and 3 kg of SP1045 cross-linking agent evenly, and prepare cross-linking agent masterbatch B3 by using melt mixing equipment.

[0054] Mix 90% of the reaction one-step material B1, 4% of the accelerator masterbatch B2 and 6% of the crosslinker masterbatch B3 in a weight ratio, and use twin-screw extrusion for dynamic vulcanization to prepare a phase-change energy storage thermoplastic composite material, The temperature setting of the heating zone of the twin-screw extruder is: 160°C, 170°C, 180°C, 180°C, 180°C, 180°C, 180°C, 18...

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Abstract

The invention discloses a phase change energy storage thermoplastic composite material, which comprises the following components in percentage by weight: 5 to 30 percent of polypropylene, 10 to 40 percent of ethylene-propylene-diene monomer (EPDM), 20 to 75 percent of paraffin, 0.5 to 10 percent of cross-linking agent, 0.01 to 2 percent of antioxidant, 0.01 to 10 percent of processing aid and 0 to 10 percent of crosslinking aid. The components are subjected to dynamic vulcanization in one step in melting mixing equipment to obtain the phase change energy storage thermoplastic composite material. The phase change energy storage thermoplastic composite material has the processing characteristics of thermoplastic plastics, and has high breaking elongation, moderate hardness and flexibility; and the paraffin is coated in the crosslinked EPDM to form microcapsules, and the phase change energy storage thermoplastic composite material is excellent in shape retaining performance and low in percolation ratio and has the better application prospects in fields of construction, chemical engineering, energy and the like.

Description

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Claims

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Application Information

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Owner KINGFA SCI & TECH CO LTD
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