Greener tannin–resorcinol–formaldehyde adhesive derived from Acacia mangium for the manufacture of multiply bamboo panel products

IF 2.4 3区化学 Q3 POLYMER SCIENCE

Iranian Polymer Journal Pub Date : 2024-11-19 DOI:10.1007/s13726-024-01421-7

Dwini Normayulisa Putri, Adi Santoso, Raden Permana Budi Laksana, Fazhar Akbar, Sukma Surya Kusumah, Eko Setio Wibowo, Jajang Sutiawan, Muhammad Adly Rahandi Lubis

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Abstract

Considering the toxicity and carcinogenicity of formaldehyde, there is a strong need to reduce the use of formaldehyde in the adhesive system. This study uses tannin–resorcinol–formaldehyde (TRF) as an alternative bio-based adhesive to produce multiply bamboo panels from Tali bamboo (Gigantochloa apus). TRF adhesive has been prepared using tannin extracted from mangium bark (Acacia mangium), as one of the high tannin content sources, together with resorcinol and formaldehyde. The addition of tannin in TRF adhesive formulation in this study has reduced the amount of formaldehyde by 33% compared to PRF as the conventional adhesive. In addition, TRF adhesive was improved with wheat flour as the extender, to increase the physical properties and reduce the cost of adhesive, as well as to improve the mechanical properties of multiply bamboo panel. This study investigated the effect of ply composition and extender concentration on the physical and mechanical properties of multiply bamboo panels. The results showed that ply composition and extender concentration significantly affected the physical and mechanical properties of multiply bamboo panels. Based on these results, 21 of the 25 types of multiply bamboo panels produced had properties that met Japanese Agricultural Standards (JAS) and Indonesian National Standard (SNI) (except modulus of elasticity). This study demonstrated that the TRF adhesive prepared from mangium tannin containing wheat flour as the extender could be used as an alternative adhesive in the multiply bamboo panel industry with further development to have all the properties that meet the standards.

Graphical abstract

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绿色单宁-间苯二酚-甲醛胶粘剂，从相思中提取，用于制造多重竹板产品

考虑到甲醛的毒性和致癌性，迫切需要减少甲醛在胶粘剂体系中的使用。本研究使用单宁-间苯二酚-甲醛（TRF）作为替代生物基胶粘剂，以大竹（Gigantochloa apus）为原料生产复合竹板。以高单宁来源之一的mangium树皮（Acacia mangium）为原料，与间苯二酚和甲醛共同制备了TRF胶粘剂。在本研究中加入单宁后，与常规胶粘剂PRF相比，TRF胶粘剂的甲醛含量降低了33%。此外，以小麦粉为增稠剂对TRF胶粘剂进行了改良，提高了复合竹板的物理性能，降低了胶粘剂的成本，改善了复合竹板的力学性能。研究了竹材复合板的层数组成和填充剂浓度对竹材复合板物理力学性能的影响。结果表明，层数和填充剂浓度对竹材复合板的物理力学性能有显著影响。基于这些结果，生产的25种竹板中有21种具有符合日本农业标准（JAS）和印度尼西亚国家标准（SNI）的性能（除了弹性模量）。本研究表明，以小麦粉为扩展剂，以锰单宁为原料制备的TRF胶粘剂可作为复合竹板工业的替代胶粘剂，经进一步开发，其各项性能均达到标准。图形抽象

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Iranian Polymer Journal 化学-高分子科学

CiteScore

4.90

自引率

9.70%

发文量

107

审稿时长

2.8 months

期刊介绍： Iranian Polymer Journal, a monthly peer-reviewed international journal, provides a continuous forum for the dissemination of the original research and latest advances made in science and technology of polymers, covering diverse areas of polymer synthesis, characterization, polymer physics, rubber, plastics and composites, processing and engineering, biopolymers, drug delivery systems and natural polymers to meet specific applications. Also contributions from nano-related fields are regarded especially important for its versatility in modern scientific development.