Influence of the multiday and continuous hot press on the physical, mechanical and formaldehyde emission properties of the particleboard

IF 1.2 4区农林科学 Q3 MATERIALS SCIENCE, PAPER & WOOD

Maderas-ciencia Y Tecnologia Pub Date : 2022-12-01 DOI:10.4067/s0718-221x2023000100407

Osman Çamlıbel

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Abstract

In this study, Its the influence of according to press, particleboards produced in two different press types which were multiday and continuous hot press, the thickness, density, bending strength, modulus of elasticity, internal bond, surface soundness, withdrawal of screw resistance, moisture, thickness swelling, water absorp - tion, formaldehyde emission content were researched. 18 mm x 2100 mm x 2800 mm size particleboards were manufactured on the production line which was using urea-formaldehyde (F:U;1,07 moles), and 30 % pine, 40 % oak, 20 % beech and 10 % poplar waste mixture of the wood materials. According to results of the tests performed after the multiday and continuous hot press production of the boards; thickness (0,63 %), bending strength (1,27 %), moisture content (0,47 %), thickness swelling (37 %), and water absorption (39,9 %), modu - lus of elasticity (11,35 %), internal bond (7,22 %) were increased according to multiday hot press while density (2,7 %), surface soundness (18,81 %), withdrawal of screw resistance (14 %) and formaldehyde (57,12 %) decreased. Formaldehyde content,surface soundness, withdrawal of screw resistance are the most prominent properties influenced by continuous hot press.

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多日连续热压对刨花板物理、机械和甲醛释放性能的影响

本文研究了在多日热压和连续热压两种不同压型下生产的刨花板的厚度、密度、抗弯强度、弹性模量、内部粘结、表面硬度、脱螺阻力、吸湿性、厚度膨胀性、吸水率、甲醛释放量等对压型的影响。18mm x 2100 mm x 2800 mm尺寸的刨花板在生产线上生产，该生产线使用脲醛(F:U;1,07摩尔)和30%的松木，40%的橡木，20%的山毛榉和10%的杨木废料混合物的木材材料。根据多日连续热压生产后的试验结果;经过多日热压处理后，材料的厚度(0.63%)、抗弯强度(1.27%)、含水率(0.47%)、厚度膨胀(37%)、吸水率(39.9%)、弹性模量(11.35%)、内部粘结(7.22%)均有所增加，而密度(2.7%)、表面健康度(18.81%)、拔螺阻力(14%)和甲醛(57.12%)均有所下降。连续热压对甲醛含量、表面稳健性、脱螺阻力等性能的影响最为显著。

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

Maderas-ciencia Y Tecnologia 工程技术-材料科学：纸与木材

CiteScore

2.60

自引率

13.30%

发文量

审稿时长

>12 weeks

期刊介绍： Maderas-Cienc Tecnol publishes inedits and original research articles in Spanish and English. The contributions for their publication should be unpublished and the journal is reserved all the rights of reproduction of the content of the same ones. All the articles are subjected to evaluation to the Publishing Committee or external consultants. At least two reviewers under double blind system. Previous acceptance of the Publishing Committee, summaries of thesis of Magíster and Doctorate are also published, technical opinions, revision of books and reports of congresses, related with the Science and the Technology of the Wood. The journal have not articles processing and submission charges.