Novel Poly(vinyl alcohol)-based Cold Chain Material

Da-wei Xu; Qing-qing Wang; Li Li; Ning Chen; Qi Wang

doi:10.11777/j.issn1000-3304.2025.25208

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Novel Poly(vinyl alcohol)-based Cold Chain Material

Review | 更新时间：2026-01-16

- Novel Poly(vinyl alcohol)-based Cold Chain Material
- Acta Polymerica Sinica Vol. 57, Issue 1, Pages: 66-78(2026)
- 作者机构：
  
  1.先进高分子材料全国重点实验室(四川大学) 四川大学高分子研究所成都 610065
  2.天府永兴实验室成都 610213
- 作者简介：
- 基金信息：
- DOI：10.11777/j.issn1000-3304.2025.25208
  CLC：
- CSTR：32057.14.GFZXB.2025.7493
- Received：28 August 2025，
  
  Accepted：11 October 2025，
  
  Published Online：08 December 2025，
  
  Published：20 January 2026
- 稿件说明：
移动端阅览
徐大伟, 王清清, 李莉, 陈宁, 王琪. 聚乙烯醇基新型冷链材料. 高分子学报, 2026, 57(1), 66-78.

Xu, D. W.; Wang, Q. Q.; Li, L.; Chen, N.; Wang, Q. Novel poly(vinyl alcohol)-based cold chain material. Acta Polymerica Sinica (in Chinese), 2026, 57(1), 66-78.
徐大伟, 王清清, 李莉, 陈宁, 王琪. 聚乙烯醇基新型冷链材料. 高分子学报, 2026, 57(1), 66-78. DOI： 10.11777/j.issn1000-3304.2025.25208. CSTR： 32057.14.GFZXB.2025.7493.

Xu, D. W.; Wang, Q. Q.; Li, L.; Chen, N.; Wang, Q. Novel poly(vinyl alcohol)-based cold chain material. Acta Polymerica Sinica (in Chinese), 2026, 57(1), 66-78. DOI： 10.11777/j.issn1000-3304.2025.25208. CSTR： 32057.14.GFZXB.2025.7493.

摘要

相变蓄冷是无源冷藏维持低温环境，防止果蔬、生鲜等生物质农产品腐烂变质的重要保鲜技术. 水是最常用的相变材料，但冰融化成水易流淌、易泄露，难以应用于环境清洁要求高的冷链运输. 本工作介绍了环境友好聚乙烯醇(PVA)基新型冷链材料，利用PVA水合作用，调控水状态，引入高吸水性树脂(SAP)，提高体系蓄水量；通过自主创新的PVA热塑加工水发泡技术，制备了具有多孔结构、较大比表面积的PVA基泡沫材料；通过原位聚合构造多重氢键和多层次网络结构，结合毛细作用，提高了体系吸水保水能力，在冰融化或一定外力作用下水不流淌，获得了综合性能优异的PVA基新型冷链材料，相变潜热高达324.7 J/g，可维持均匀稳定的温度场，保冷效果优于冰块，且可构造所需形状、循环使用，在我国目前井喷式发展的水果、生鲜冷链物流中有重要应用.

Abstract

Phase change cold storage

as the passive refrigeration

is an important preservation technology that maintains the low-temperature environment to prevent the decay and deterioration of biomass agricultural products such as fruits

vegetables

and fresh f

ood. Water is the most commonly used phase change material. However

it encounters the problem

such as easy flowing and leakage

when ice melts into water

making it difficult to apply in cold chain transportation which requires the high environmental cleanliness. This review introduced the novel environmental-friendly poly(vinyl alcohol) (PVA) based cold chain materials. It utilized the hydration of PVA to control the water state

and incorporated the super absorbent polymer (SAP) to improve the water storage of the system. We prepared PVA based foam materials

via

self-innovated thermal processing and water foaming technology

which increased the specific surface area. Constructing multiple hydrogen and multi-level network structure through

in situ

polymerization

combined with the capillary action

could improve the water absorption and retention capacity of the system

preventing the water flowing under the situation of ice melting and certain external force. We achieved the novel PVA based cold chain materials with excellent comprehensive performance

which possessed the high latent heat of 324.7 J/g. It could maintain the uniform and stable temperature field

exhibiting the better cold retention effect than ice cube. It could be reused and fabricated into the desired shape

showing important applications in the rapidly developing fruit and fresh cold chain logistics in China.

关键词

Keywords

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