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二苯乙烯型荧光分子-水滑石复合光稳定剂的制备及性能
Preparation and Properties of Stilbene-type Fluorescent Molecule-Hydrotalcite Composite Light Stabilizer
投稿时间:2023-05-26  
DOI:10.11980/j.issn.0254-508X.2023.09.006
关键词:  复合光稳定剂  二苯乙烯  荧光增白剂  层状双金属氢氧化物  高得率浆
Key Words:composite light stabilizer  stilbene  fluorescent brightener  layered double hydroxide  high yield pulp
基金项目:陕西省教育厅重点实验室项目(20JS048);陕西省高校科协青年人才托举计划项目(20200611);陕西省科技厅自然科学基础研究计划项目(2021JQ-826);渭南师范学院人才项目(20RC+9);渭南师范学院校级教育教学改革研究项目(JG202156)。
作者单位邮编
郭明媛* 渭南师范学院化学与材料学院陕西渭南714099 714099
张光华 陕西科技大学教育部轻工助剂化学与技术重点实验室陕西西安710021 710021
郭明哲 陕西交通控股集团有限公司西安外环分公司陕西西安710018 710018
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摘要:本研究利用共沉淀法将双三嗪二苯乙烯型荧光分子(FBs)插进水滑石(LDHs)层间,制备了一种高稳定性的荧光小分子插层LDHs复合光稳定剂(FBs-LDHs),评价其对高得率浆制备纸张的增白性能及光诱导返黄抑制作用。结果表明,LDHs可以有效地抑制FBs的光致异构现象,提高FBs-LDHs的荧光性能。48 h紫外老化后,FBs-LDHs涂布纸张的PC值较未涂布纸张低3.9,较FBs涂布纸张低3.0,说明FBs-LDHs能更好地抑制高得率浆纸张光致返黄。
Abstract:In this study, a highly stable bis-triazine stilbene-type fluorescent molecule (FBs) intercalated layered double hydroxide (LDHs) composite light stabilizer (FBs-LDHs) was prepared via co-precipitation method, and its brightening performance and light-induced yellowing inhibition of paper prepared from high yield pulp were evaluated. The results showed that the LDHs could effectively inhibit the photo-isomerization of FBs and improve the fluorescence performance of FBs-LDHs. After 48 h of UV aging, the PC value of FBs-LDHs coated paper was 3.9 lower than that of uncoated paper, and 3.0 lower than that of FBs coated paper, indicating that FBs-LDHs could better inhibit the photo-return of yellowing of highyield pulp paper.
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