松香类增黏树脂在PBAT基可降解热熔压敏胶中的应用

doi:10.19491/j.issn.1001-9278.2025.12.018

中国塑料 ›› 2025, Vol. 39 ›› Issue (12): 114-118.DOI: 10.19491/j.issn.1001-9278.2025.12.018

• 塑料与环境 • 上一篇

松香类增黏树脂在PBAT基可降解热熔压敏胶中的应用

黄慧敏, 徐睿杰, 雷彩虹()

广东工业大学材料与能源学院广东省储能材料与器件工程实验室，广州 510006

收稿日期:2025-01-06 出版日期:2025-12-26 发布日期:2025-12-22
通讯作者: 雷彩红，Lch528@gdut.edu.cn
E-mail:Lch528@gdut.edu.cn

Application of rosin tackifying resins in PBAT⁃based degradable hot⁃melt pressure⁃sensitive adhesives

HUANG Huimin, XU Ruijie, LEI Caihong()

Guangdong Energy Storage Materials and Device Engineering Laboratory，School of Materials and Energy，Guangdong University of Technology，Guangzhou 510006，China

Received:2025-01-06 Online:2025-12-26 Published:2025-12-22
Contact: LEI Caihong E-mail:Lch528@gdut.edu.cn

摘要/Abstract

摘要：

采用工业聚己二酸对苯二甲酸丁二酯（PBAT）树脂，通过恒温恒湿环境调控其分子量基础上，引入不同结构的松香类增黏树脂，表征了压敏胶的高温流变性能以及与钢板的剥离强度。结果表明，加入歧化松香的PBAT基热熔压敏胶表现出较大的180 °剥离强度为5.39 N/25 mm，以及较强的润湿被黏物的能力，流变测试表现出较大模量，黏弹窗口发现该热熔压敏胶可用作剥离型压敏胶。

关键词: 热熔压敏胶, 聚己二酸对苯二甲酸丁二酯, 增黏树脂, 剥离性能

Abstract:

This study developed a series of biodegradable hot⁃melt pressure⁃sensitive adhesives based on polybutylene adipate terephthalate （PBAT）. The molecular weight of industrial PBAT resin was first modulated under controlled conditions. Subsequently， various rosin⁃derived tackifying resins were incorporated to formulate the adhesives. The performance of these PBAT⁃based hot⁃melt pressure⁃sensitive adhesives was evaluated through high⁃temperature rheology and 180° peel strength tests from steel plates. Results indicated that the adhesive formulated with disproportionated rosin exhibited superior properties， achieving peel strength of 5.39 N/25 mm and demonstrating excellent wetting ability on the substrate. Rheological analysis revealed a high modulus， and the viscoelastic profile confirmed that the material's performance aligns with that of a permanent pressure⁃sensitive adhesive. These findings highlight the effectiveness of disproportionated rosin as a tackifier for creating viable， biodegradable hot⁃melt pressure⁃sensitive adhesives from PBAT.

Key words: hot?melt pressure sensitive adhesive, polybutylene adipate terephthalate, tackifying resin, peel performanc

中图分类号:

TQ321

黄慧敏, 徐睿杰, 雷彩虹. 松香类增黏树脂在PBAT基可降解热熔压敏胶中的应用[J]. 中国塑料, 2025, 39(12): 114-118.

HUANG Huimin, XU Ruijie, LEI Caihong. Application of rosin tackifying resins in PBAT⁃based degradable hot⁃melt pressure⁃sensitive adhesives[J]. China Plastics, 2025, 39(12): 114-118.

图/表 10

图 1 DHAA和KS2100结构示意图

Fig.1 Schematic diagram of DHAA and KS2100

图2 180 °剥离强度测试示意图

Fig.2 Schematic diagram of 180 ° peel strength test

老化天数/天	M_n/g·mol^-1	M_w/g·mol^-1	PDI
0	30 054	459 408	15.3
3	23 664	230 114	9.7
6	13 299	28 246	2.1
9	8 937	16 545	1.9
12	6 190	10 503	1.7

表1 不同时间老化后PBAT树脂的分子量以及分布

Tab.1 Molecular weight and distribution of PBAT resin after different degradation days

图3 不同天数老化后PBAT复数黏度随剪切应变和角频率变化曲线

Fig.3 Variation curves of PBAT complex viscosity with shear strain and angular frequency after different days of aging

图4 不同天数老化后PBAT树脂的DMA和DSC升温曲线

Fig.4 DMA and DSC heating curves of PBAT resins after different days of aging

图5 松香类增黏树脂制得压敏胶的180 °剥离强度以及剥离前后钢板残胶情况

Fig.5 The 180 ° peel strength of pressure⁃sensitive adhesives prepared by different rosin tackifying resins and the residual glue of steel plates before and after peeling

样品	θ_W/°	θ_D/°	γ_s^d/mN·m^-1	γ_s^p/mN·m^-1	γ_s/mN·m^-1
1	64.97	29.04	37.56	10.54	48.10
S1	52.30	20.34	37.88	17.56	55.44
S2	79.06	9.01	47.79	2.39	50.18
2	54.06	38.87	30.35	20.13	50.48

表2 PET电晕膜、压敏胶和剥离钢板的接触角、表面张力

Tab.2 Contact angles and surface tension of PET corona film， pressure⁃sensitive adhesive， and peeled steel sheet

样品	γ_1⁃s/mN·m^-1	γ_s-2/mN·m^-1
S1	0.89	0.50
S2	3.51	10.62

表3 松香类增黏树脂制得压敏胶与PET电晕膜、剥离钢板的界面张力

Tab.3 Interfacial tension of pressure⁃sensitive adhesive prepared by different rosin tackifiers， PET corona film and peeled steel plate

图6 松香类增黏树脂制得压敏胶在130 ℃下储能模量、损耗模量随频率变化曲线

Fig.6 Viscous and elastic modulus versus frequency curves of pressure⁃sensitive adhesive prepared by different rosin tackifiers at 130 °C

图7 松香类增黏树脂制得压敏胶在130 ℃下的黏弹窗口

Fig.7 Viscoelastic window of pressure⁃ sensitive adhesive prepared by different rosin tackifying resins at 130 ℃

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松香类增黏树脂在PBAT基可降解热熔压敏胶中的应用

Application of rosin tackifying resins in PBAT⁃based degradable hot⁃melt pressure⁃sensitive adhesives

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