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首页> 外文期刊>Journal of Applied Polymer Science >Lamination of high-density polyethylene by bulk photografting and the mechanism of adhesion
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Lamination of high-density polyethylene by bulk photografting and the mechanism of adhesion

机译：本体光接枝层压高密度聚乙烯及其粘合机理

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摘要

The photolamination of high-density polyethylene (HDPE) by bulk photografting is described, along with a discussion of the adhesion mechanism. HDPE can be photolaminated very easily with a thin poly(acrylic acid) layer, photopolymerized from acrylic acid, with very strong adhesion obtained after a short time of UV irradiation; the adhesion failure mode is polyethylene breakage. Thicker HDPE sheets require longer irradiation times for strong adhesion. Methacrylic acid or hydroxyethyl methacrylate provides no adhesion of HDPE at all after irradiation. When glycidyl acrylate is used alone between HDPE sheets, the peel strength of the photolaminated polyethylene is only approximately 320 N/m, but when glycidyl acrylate or hydroxyethyl methacrylate is grafted with acrylic acid, very good adhesion can be obtained. It is proposed that stronger adhesion is produced by a less branched grafted chain structure, which permits much more chain entanglement. (D 2005 Wiley Periodicals, Inc.
机译：描述了通过本体光接枝进行的高密度聚乙烯（HDPE）的光层压，并讨论了粘合机理。 HDPE可以很容易地与由丙烯酸进行光聚合的聚丙烯酸薄层进行光层压，在短时间的紫外线照射下具有非常强的附着力;粘合破坏方式为聚乙烯破坏。较厚的HDPE片材需要更长的辐照时间才能获得强粘合力。甲基丙烯酸或甲基丙烯酸羟乙酯在辐照后根本不提供HDPE的附着力。当在HDPE片材之间单独使用丙烯酸缩水甘油酯时，光层压聚乙烯的剥离强度仅为约320N / m，但是当丙烯酸缩水甘油酯或甲基丙烯酸羟乙酯接枝丙烯酸时，可以获得非常好的粘合性。提出通过较少分支的接枝链结构产生更强的粘附力，这允许更多的链缠结。 （D 2005 Wiley Periodicals，Inc.

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