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基于电子束辐照天然橡胶的新型弹性体材料在食品和制药领域的应用。

New Elastomeric Materials Based on Natural Rubber Obtained by Electron Beam Irradiation for Food and Pharmaceutical Use.

作者信息

Craciun Gabriela, Manaila Elena, Stelescu Maria Daniela

机构信息

Electron Accelerators Laboratory, National Institute for Laser, Plasma and Radiation Physics, 409 Atomistilor St., 077125 Magurele, Romania.

National R&D Institute for Textile and Leather-Leather and Footwear Research Institute, 93 Ion Minulescu St., 031215 Bucharest, Romania.

出版信息

Materials (Basel). 2016 Dec 21;9(12):999. doi: 10.3390/ma9120999.

DOI:10.3390/ma9120999
PMID:28774150
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5457009/
Abstract

The efficiency of polyfunctional monomers as cross-linking co-agents on the chemical properties of natural rubber vulcanized by electron beam irradiation was studied. The following polyfunctional monomers were used: trimethylolpropane-trimethacrylate, zinc-diacrylate, ethylene glycol dimethacrylate, triallylcyanurate and triallylisocyanurate. The electron beam treatment was done using irradiation doses in the range of 75 kGy-300 kGy. The gel fraction, crosslink density and effects of different aqueous solutions, by absorption tests, have been investigated as a function of polyfunctional monomers type and absorbed dose. The samples gel fraction and crosslink density were determined on the basis of equilibrium solvent-swelling measurements by applying the modified Flory-Rehner equation for tetra functional networks. The absorption tests were done in accordance with the SR ISI 1817:2015 using distilled water, acetic acid (10%), sodium hydroxide (1%), ethylic alcohol (96%), physiological serum (sodium chloride 0.9%) and glucose (glucose monohydrate 10%). The samples structure and morphology were investigated by Fourier Transform Infrared Spectroscopy and Scanning Electron Microscopy techniques.

摘要

研究了多官能团单体作为交联助剂对电子束辐照硫化天然橡胶化学性能的影响。使用了以下多官能团单体：三羟甲基丙烷三甲基丙烯酸酯、二丙烯酸锌、乙二醇二甲基丙烯酸酯、三烯丙基氰尿酸酯和三烯丙基异氰尿酸酯。电子束处理采用75 kGy至300 kGy范围内的辐照剂量。通过吸收测试，研究了凝胶分数、交联密度以及不同水溶液的影响，并将其作为多官能团单体类型和吸收剂量的函数。样品的凝胶分数和交联密度是根据平衡溶剂溶胀测量结果，应用针对四官能团网络的修正弗洛里-雷纳方程确定的。吸收测试按照SR ISI 1817:2015进行，使用蒸馏水、乙酸（10%）、氢氧化钠（1%）、乙醇（96%）、生理血清（0.9%氯化钠）和葡萄糖（一水合葡萄糖10%）。通过傅里叶变换红外光谱和扫描电子显微镜技术研究了样品的结构和形态。

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