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    新產品·新技術信息

    粒徑結構對醋酸乙烯/丙烯酸酯膠粘劑剝離強度和耐熱性能的影響

    來源:林中祥膠粘劑技術信息網2011年01月21日

    閱讀次數:

    Effect of particle structure on the peel strength and heat resistance properties of vinyl acetate/acrylate latexes laminating adhesives

     

    Technical Paper - The concept of using particle structure design to prepare emulsion laminating adhesives (LAs) for improving both the peel strength and heat resistance properties has been investigated. The homogeneous particle latices based on vinyl acetate/acrylate copolymer (samples 1-3) were synthesized by seeded semicontinuous emulsion polymerization with different chain transfer agent (CTA) contents but with no functional monomers, while the core-shell structure crosslinkable latices (samples 4 and 5) were prepared through multistage polymerization technique. The emulsion particle structure was investigated by TEM and particle size analyzer. The results indicate that the average emulsion particle diameter is about 130 nm and the particles grow without secondary nucleation. Samples 1 and 2 prepared with 0.7 and 0.5 phm (per hundred gram monomer) CTA respectively, show high peel strength but poor heat resistance property. On the contrary, the sample 3 prepared with 0.1-phm CTA exhibits low peel strength but relatively good heat resistance. However, sample 4, which was synthesized with 0.5-phm CTA and 0.4-phm acetoacetoxy ethyl methacrylate (AAEM) in core but 0.5-phm CTA and 0.6-phm AAEM in shell stages, shows high peel strength INSERT INTO [lzx].[dbo].[tb_new]([id],[type],[title],[source],[personal],[image],[contents],[time],[number]) VALUES (1032.9 g/in.) and good heat resistance property INSERT INTO [lzx].[dbo].[tb_new]([id],[type],[title],[source],[personal],[image],[contents],[time],[number]) VALUES (524.9 g/in.). In addition, sample 5 also demonstrates high peel strength INSERT INTO [lzx].[dbo].[tb_new]([id],[type],[title],[source],[personal],[image],[contents],[time],[number]) VALUES (987.2 g/in.) and good heat resistance property INSERT INTO [lzx].[dbo].[tb_new]([id],[type],[title],[source],[personal],[image],[contents],[time],[number]) VALUES (643.5 g/in.) when it was synthesized using 0.1-phm CTA but no AAEM in core, 0.36-phm CTA and 0.75-phm AAEM in shell stages. (c) 2010 Wiley Periodicals, Inc.


     

    Source : EIX 10-51 E20105013483674 NDN- 267-0912-0191-8 AUTHORS- Zhou, Changlin AUTHORS- Che, Rongsheng AUTHORS- Zhong, Ling AUTHORS- Xu, Wei AUTHORS- Guo, Dongyang AUTHORS- Lei, Jingxin AUTHOR ADDRESS- Chengdu 610065 EMAIL- jxlei@scu.edu.cn ABBREVIATED JOURNAL TITLE- J. Appl. Polym. Sci. VOLUME 119 NUMBER 5 PUBLICATION DATE- 2011-03-05 2857-2865 PAGES 22 REFERENCES DOCUMENT TYPE- Journal Article ISSN- 0021-8995 PUBLICATION DATE- 2011 CODEN- JAPNA AUTHOR AFFILIATION- Lei, J.; State Key Laboratory of Polymer Materials and Engineering, Polymer Research Institute, Sichuan University, Chengdu 610065, jxlei@scu.edu.cn, CHINA PUBLISHER- John Wiley and Sons Inc., P.O.Box 18667, Newark, NJ 07191-8667 PUBLICATION COUNTRY- UNITED STATES JOURNAL NAME- Journal of Applied Polymer Science ELECTRONIC JOURNALS DOCUMENT NUMBER- 1097-4628 DOCUMENT URL- 10.1002/app.32953 LANGUAGE- English
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