溶劑聚合丁苯橡膠(SSBR)系感壓膠之黏著特性探討

The adhesion properties of PSA prepared from Solution-polymerized SBR

高榛璘(Chen-Lin Kao)

指導教授 ： 芮祥鵬

國立臺北科技大學/工程學院/有機高分子研究所/碩士(2013年)

摘要

本研究分別以溶劑聚合丁苯橡膠(Solution-polymerized SBR)及乳化聚合丁苯橡膠(Emulsion-polymerized SBR)為感壓膠(Pressure Sensitive Adhesive)中的彈性體，比較添加不同濃度比例的增黏樹脂來進行黏著物性及流變行為的探討。溶劑聚合與乳化聚合丁苯橡膠系感壓膠的黏著特性以環狀初期力(loop tack)、黏著力(peel strength)及保持力(cohesion strength)之方法測試，再以流變儀( Physica MCR Rheometer)來測定其動態機械特性。
黏著特性研究上，黏著力皆會隨著增黏樹脂比例提高而變強；而環狀初期力則依丁苯橡膠彈性體中的苯乙烯含量(Styrene%)不同而有所差異，當苯乙烯含量(Styrene%)越多，環狀初期力表現越差；保持力以SSBR(A)為最佳。
流變儀進行的動態機械性質量測中，當G”(ω=60)/G’(ω=0.5)數值越大時，所表現出的黏著力也越大，其中又以線性結構SSBR(A)的表現最為明顯與穩定。
綜合以上實驗結果顯示，溶劑聚合丁苯橡膠之分子結構及分子內苯乙烯含量影響黏著特性甚大；而SSBR(A)彈性體較有應用於感壓膠的優勢。

關鍵字

溶劑聚合丁苯橡膠 ； 乳化聚合丁苯橡膠 ； 感壓膠 ； 環狀初期力 ； 黏著力 ； 保持力 ； 流變學

並列摘要

In this study, we investigate the adhesive properties and rheology of solution-polymerized SBR-based and emulsion-polymerized SBR-based pressure-sensitive adhesive using terpene phenol resin as the tackifier. The terpene phenol resin was varied from 0 to 100 parts per hundred parts of rubber (phr). The adhesive properties of SSBR-based pressure-sensitive adhesive were tested by loop tack, peel strength, cohesion strength, and rheology was determined by a Physica MCR Rheometer.
The results show that the peel strength of the adhesion increases with increasing tackifier loadings. The loop tack were affected by the styrene content of SBR-based PSA. For the cohesion strength, SSBR(A)-based PSA is the best one.
Using Physica MCR Rheometer test, the peel strength of the adhesion increases with the increasing value of G”(ω=60)/G’(ω=0.5), specially linear molecular structure of the SSBR(A).
Based on experiment results, the adhesive properties of the SSBR(A)-based PSA is the best one and it could be used to prepare the PSAs. The molecular structure and styrene content of the solution-polymerized SBR would greatly affect the adhesive properties of PSA prepares from solution-polymerized SBR.

並列關鍵字

Solution SBR(SSBR) ； Emulsion SBR(ESBR) ； PSA ； loop tack ； peel strength ； cohesion strength ； Rheology

參考文獻

16.李益菁，丁苯橡膠官能化及接枝聚合反應之合成研究 ，碩士論文，中原大學化學系，桃園，2007。

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