| 硅酸锂改性双组分水性耐热氯丁橡胶胶粘剂的制备与性能研究 |
| Preparation and Properties of Lithium Silicate Modified Two-component Water-based Heat Resistant CR Adhesive |
| 投稿时间：2024-04-17 修订日期：2024-04-17 |
| DOI：10.12136/j.issn.1000-890X.2026.02.0106 |
| 中文关键词: 氯丁橡胶胶乳 水性胶粘剂 硅酸锂 改性 粘接性能 耐热性能 稳定性 |
| 英文关键词: CR latex water-based adhesive lithium silicate modification adhesive property heat resistance stability |
| 基金项目:肇庆市科技创新指导类项目（241218154169554）；广东省科技计划项目（2024A0505050042）；大学生创新创业训练计划项目（X202410580133和X202510580128） |
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| 中文摘要: |
| 用硅酸锂改性制备双组分水性耐热氯丁橡胶（CR）胶粘剂，研究硅酸锂对胶粘剂的稳定性、粘接性能和耐热性能的影响。结果表明：双组分水性CR胶粘剂的稳定性好；随着硅酸锂质量分数的增大，粘接试样的T形剥离强度先提高后降低，最高可达3.8 kN·m-1；加入硅酸锂后，胶粘剂的玻璃化转变温度降低，初始分解温度降低，最终分解温度提高；添加质量分数10%～15%的硅酸锂有利于提高胶粘剂的耐热性能。本工作制备的硅酸锂改性双组分水性耐热CR胶粘剂可以解决普通溶剂型CR胶粘剂初始粘接性能和耐高温性能差等问题。 |
| 英文摘要: |
| A two-component water-based heat resistant chloroprene rubber（CR） adhesive was prepared by modification with lithium silicate.The effects of lithium silicate on the stability，adhesive property and heat resistance of the adhesive were studied.The results showed that the two-component water-based CR adhesive had good stability.With the increasing of the mass fraction of lithium silicate，the T-peel strength of the adhesive sample first increased and then decreased，which could reach a maximum of 3.8 kN·m-1.After adding lithium silicate，the glass transition temperature of the adhesive decreased，the initial decomposition temperature decreased，and the final decomposition temperature increased.Adding lithium silicate with a mass fraction of 10%～15% was beneficial to improving the heat resistance of the adhesive.The lithium silicate modified two-component water-based heat resistant CR adhesive could solve the problems of poor initial adhesive property and high temperature resistance of ordinary solvent-based CR adhesive. |
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