Synthesis of a dripping agent based on lauric acid diethanolamide and delaying its migration in LLDPE films

ABSTRACT

Polymeric films are increasingly used in greenhouse cultivation because dripping agents can improve the hydrophilicity of film surface. Here, we summarize a way to a new reactive type dripping agent, lauric acid diethanolamide monoacrylate (AAL), which was synthesized by using acrylic and lauric acid diethanolamide as main starting materials. As-prepared AAL was separately grafted onto linear low-density polyethylene (LLDPE-g-AAL) and layered double hydroxides (LDHs-g-AAL) to prevent it from migrating. Accelerated dripping experiment results showed that the dripping time of LLDPE/LDHS-g-AAL and LLDPE-g-AAL films at 60°C was prolonged to 16 and 12 days from 8 days of ungrafted one, respectively.

Graphical Abstract

KEYWORDS:

• Dripping agent
• migration
• LDHs
• graft

Disclosure statement

The authors declare no competing financial interest.

Additional information

Funding

This work was supported by the National Key Program of Research and Development of China (No. 2016YFB0302401), the National Natural Science Foundation of China (No. 51673197) and the Changchun University of Science and Technology Innovation Foundation Project (No. XJJLG-2017-15).

Notes on contributors

Siqi Yang

Siqi Yang, M. Sc. Department of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun, People’s Republic of China.

Haoyuan Wang

Haoyuan Wang, M. Sc. Department of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun, People’s Republic of China.

Xiaopeng Sun

Xiaopeng Sun, PhD. Polymer chemistry and physics, University of Science and Technology of China, Anhui, People’s Republic of China.

Fanghong Yang

Fanghong Yang, PhD. Polymer chemistry and physics, University of Science and Technology of China, Anhui, People’s Republic of China.

Xiaotian Li

Xiaotian Li, M. Sc. Department of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun, People’s Republic of China.

Wenfei Li

Wenfei Li, Prof. Department of Chemistry and Environmental Engineering, Changchun University of Science and Technology, Changchun, People’s Republic of China.

Zhanhai Yao

Zhanhai Yao, Prof. Polymer chemistry and physics, State Key Laboratory of Polymer Physics and Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, People’s Republic of China.