Preparation of Modified Melamine-Urea-Formaldehyde Resin with Blended Powder and Its Application in Medium Density Fiberboards

LIN Jinxiu; CHEN Wenyuan; LING Shangxian; TAO Jing; HU Zhenguang

doi:10.12326/j.2096-9694.2024062

RESEARCH PAPERS | Views : 0 下载量: CSCD: 0 CNKI被引量: 0 Crossref: 0 Wos: 0 Scopus: 0 更多指标

PDF
Export
Share
Collection
Album

Preparation of Modified Melamine-Urea-Formaldehyde Resin with Blended Powder and Its Application in Medium Density Fiberboards
1.School of Chemistry and Bioengineering，Guilin University of Technology，Guilin 541000，Guangxi，China
2.Guangxi Forest Industry Group Co.，Ltd.，Nanning 530004，Guangxi，China
3.Guangxi Fangchenggang Hengtai Technology Development Co.，Ltd.，Fangchenggang 538000，Guangxi，China
Vol. 38, Issue 6, Pages: 23-31(2024)
Published： 30 November 2024 ，
DOI： 10.12326/j.2096-9694.2024062
稿件说明：

移动端阅览

LIN JINXIU, CHEN WENYUAN, LING SHANGXIAN, et al. Preparation of Modified Melamine-Urea-Formaldehyde Resin with Blended Powder and Its Application in Medium Density Fiberboards. [J]. Chinese journal of wood science and technology, 2024, 38(6): 23-31.
DOI：

LIN JINXIU, CHEN WENYUAN, LING SHANGXIAN, et al. Preparation of Modified Melamine-Urea-Formaldehyde Resin with Blended Powder and Its Application in Medium Density Fiberboards. [J]. Chinese journal of wood science and technology, 2024, 38(6): 23-31. DOI： 10.12326/j.2096-9694.2024062.

摘要

以不同质量比（3∶7、5∶5、7∶3）和添加量（5%、10%、15%）的云母粉与硅藻土（复合粉体）通过物理共混，改性尿素-三聚氰胺-甲醛树脂（melamine-urea-formaldehyde，MUF）胶黏剂，采用多种表征手段探讨改性前后MUF树脂和中密度纤维板（medium density fiberboard，MDF）的性能，以及复合粉体质量比和添加量对MDF性能的影响。结果显示，在MUF树脂中添加复合粉体后，树脂黏度和固体含量增加，固化时间延长，游离甲醛含量降低；改性胶黏剂制备MDF的官能团发生微小变化，热稳定性提高。当复合粉体的质量比为7∶3且以5%的添加量添加时，MDF的静曲强度、弹性模量和内结合强度分别为27.11、2 523和0.81 MPa，比对照板分别提升9%、7%、53%，24 h吸水厚度膨胀率为8.5%，物理力学性能均达到GB/T 11718—2021《中密度纤维板》干燥状态使用的普通型MDF的性能要

求；甲醛释放量由3.50 mg/100 g降至2.85 mg/100 g，降低了19%，达到T/CNFPIA 1001—2019《人造板甲醛释放限量》E

级要求。

Abstract

In this study mica powder and diatomaceous earth (composite powder) were physically blended to modify urea melamine formaldehyde (MUF) resin at different mass ratios (3∶7

5∶5

7∶3) and quantities (5%

10%

15%). Multiple characterization methods were used to investigate the properties of MUF resin before and after modification and medium density fiberboards (MDF) made with this resin. The effects of mass ratio and quantity of the blended powder on the properties of fiberboards was discussed. The results showed that adding blended powder to MUF resin increased its viscosity and solid content

extended curing time

and reduced free formaldehyde content. Minor changes in functional groups of fiberboards prepared with the modified adhesive were found. The thermal stability was improved. When the mass ratio of mica powder to diatomaceous earth was 7∶3 with the quantity of 5%

the modulus of rupture

the modulus of elasticity

and the internal bonding strength of the MDF were 27.11

2 523

and 0.81 MPa

respectively

which were 9%

and 53% higher than without modification. The 24-hour water absorption thickness expansion rate was 8.5%. The physical and mechanical properties met the performance requirements of the ordinary MDF used in a dry state according to the GB/T 11718—2021 “

Medium Density Fiberboard

”. The formaldehyde emission decreased from 3.50 mg/100 g to 2.85 mg/100 g

which was a decrease of 19%

meeting the E

level requirement of T/CNFPIA 1001—2019 “

Formaldehyde Emission Limits for Artificial Boards

”.

关键词

复合粉体硅藻土云母粉MUF树脂中密度纤维板

Keywords

blended powderdiatomitemica powderMUF resinmedium density fiberboard

references

梅长彤. 中国人造板工业的发展历程与未来展望[J]. 中国人造板, 2024, 31(3): 29-38.

MEI C T. Evolution and future prospect of china wood-based panels industry[J]. China Wood-Based Panels, 2024, 31(3): 29-38.

中国林产工业协会, 国家林业和草原局产业发展规划设计院. 中国人造板产业报告2023[R]. 北京: 中国林产工业协会, 2023.

冯云, 屈伟, 刘美宏, 等. 三聚氰胺甲醛树脂增韧改性研究进展[J]. 木材科学与技术, 2022, 36(1): 17-21.

FENG Y, QU W, LIU M H, et al. Research review on toughening modification of melamine formaldehyde resin[J]. Chinese Journal of Wood Science and Technology, 2022, 36(1):17-21.

董泽刚, 许芳, 兰天宇. 三聚氰胺改性脲醛树脂工艺条件对体系游离甲醛含量的影响研究[J]. 化工技术与开发, 2018, 47(8): 4-6.

DONG Z G, XU F, LAN T Y. Influence of process conditions of melamine modified urea formaldehyde resin on free formaldehyde content in system[J]. Technology & Development of Chemical Industry, 2018, 47(8): 4-6.

杨春萍, 伍玉娇, 刘昌贵. 聚丙烯/云母复合材料热稳定性能研究[J]. 贵州科学, 2018, 36(3): 56-60.

YANG C P, WU Y J, LIU C G. Thermal stability of polypropylene-mica composite[J]. Guizhou Science, 2018, 36(3): 56-60.

魏松艳, 崔铁花, 付晓霞, 等. 环保阻燃中密度纤维板技术研究[J]. 林产工业, 2018,45(2): 12-15.

ÇAVDAR A D. Effect of zeolite as filler in medium density fiberboards bonded with urea formaldehyde and melamine formaldehyde resins[J]. Journal of Building Engineering, 2020, 27: 101000.

罗士平, 陈宇, 谢爱娟, 等. 不同改性剂下的凹凸棒石对脲醛树脂胶黏剂中游离甲醛影响的研究[J]. 非金属矿, 2013, 36(6): 31-35.

LUO S P, CHEN Y, XIE A J, et al. Research of effects of attapulgite on free formaldehyde in urea-formaldehyde resin adhesive under different modifier[J]. Non-Metallic Mines, 2013, 36(6): 31-35.

任藩韬, 唐运表, 李欣欣, 等. 碳酸钙对三聚氰胺脲醛树脂胶黏剂性能的影响[J]. 当代化工, 2024,53(03): 602-605.

REN F T, TANG Y B, LI X X, et al. Effect of calcium carbonate on the properties of melamine urea-formaldehyde resin adhesive[J]. Contemporary Chemical Industry, 2024, 53(3): 602-605.

豆鹏飞. 稀土La2O3改性脲醛树脂的黏度特性研究[J]. 橡塑技术与装备, 2020, 46(3): 26-30.

DOU P F. Study on viscosity properties of rare earth La2O3 modified urea formaldehyde resin[J]. China Rubber/Plastics Technology and Equipment, 2020, 46(3): 26-30.

蒋骞, 卢立, 卿彦, 等. 防潮纤维板用三聚氰胺改性低物质的量比脲醛树脂胶粘剂研究[J]. 中国胶黏剂, 2023,32(9): 9-15.

JIANG Q, LU L, QING Y, et al. Study on low mole ratio urea-formaldehyde resin adhesive modified by melamine for moisture-proof fiberboard[J]. China Adhesives, 2023,32(9): 9-15.

LIU M, WANG Y, WU Y Q, et al. “Greener” adhesives composed of urea-formaldehyde resin and cottonseed meal for wood-based composites[J]. Journal of Cleaner Production, 2018,187: 361-371.

陈文渊, 陈文江, 田湘, 等. 环保高防潮纤维板用改性脲醛树脂胶黏剂的研制[J]. 广西林业科学, 2015, 44(1): 44-46.

CHEN W Y, CHEN W J, TIAN X, et al. Preparation for modified urea formaldehyde rosin adhesive using in fiberboard with low toxic and high moisture-proof[J]. Guangxi Forestry Science, 2015, 44(1): 44-46.

KUMAR A, SHARMA K V, GUPTA A, et al. Optimization of processing parameters of medium density fiberboard using response surface methodology for multiwalled carbon nanotubes as a nanofiller[J]. European Journal of Wood And Wood Products, 2017, 75(2): 203-213.

陈文渊, 胡星隆, 梁杰培, 等. 钢琴外壳用中密度纤维板生产工艺探讨[J]. 中国人造板, 2022, 29(5): 11-14.

CHEN W Y, HU X L, LIANG J P, et al. Discussion on production technology of medium density fiberboard for piano[J]. China Wood-Based Panels, 2022, 29(5): 11-14.

袁巍巍. 硅藻土基多孔矿物复合材料制备及其对有机污染物的吸附/催化性研究[D]. 北京: 中国科学院大学, 2016.

张云云, 张一帆, 何良佳. 氯化铵对酚醛甲阶树脂固化速率和游离甲醛含量的影响[J]. 中国胶粘剂, 2006, 15(10)：11-14.

ZHANG Y Y, ZHANG Y F, HE L J. The influence of NH4Cl on curing speed of resol resins and free formaldehyde content[J]. China Adhesives, 2006, 15(10): 11-14.

李铭哲, 刘阳钰, 郑水林, 等. 改性硅藻土的甲醛吸附性能与吸附机理[J]. 非金属矿, 2019,42(3): 83-86.

LI M Z, LIU Y Y, ZHENG S L, et al. Study on adsorption of modified diatomite for formaldehyde[J]. Non-Metallic Mines, 2019, 42(3): 83-86.

卿彦, 关鹏飞, 詹满军, 等. 纳米TiO2改性脲醛树脂中游离甲醛的光催化降解研究[J]. 中南林业科技大学学报, 2019, 39(7): 108-113, 142.

QING Y, GUAN P F, ZHAN M J, et al. Study on photocatalytic degradation of free formaldehyde in TiO2 nanoparticles modified urea-formaldehyde resin[J]. Journal of Central South University of Forestry & Technology, 2019, 39(7): 108-113, 142.

张文治, 王素鹏, 马龙, 等. 无机矿物改性对脲醛树脂胶粘剂及其制备纤维板性能的影响[J]. 中国胶粘剂, 2021, 30(7):1-6, 12.

ZHANG W Z, WANG S P, MA L, et al. Effects of inorganic mineral modification on properties of urea formaldehyde resin adhesive and its prepared fiberboard[J]. China Adhesives, 2021, 30(7): 1-6, 12.

JI X D, LI B, YUAN B N, et al. Preparation and characterizations of a chitosan-based medium-density fiberboard adhesive with high bonding strength and water resistance[J]. Carbohydrate Polymers, 2017,176: 273-280.

李铭哲, 刘阳钰, 郑水林, 等. 改性硅藻土的甲醛吸附性能与吸附机理[J]. 非金属矿, 2019,42(3): 83-86.

LI M Z, LIU Y Y, ZHENG S L, et al. Study on adsorption of modified diatomite for formaldehyde[J]. Non-Metallic Mines, 2019, 42(3): 83-86.

赵亚红, 于晓芳. H-MMT对低物质的量比脲醛树脂胶粘剂性能的影响[J]. 中国胶粘剂, 2024, 33(1): 27-31.

ZHAO Y H, YU X F. Effect of H-MMT on properties of low molar ratio urea-formaldehyde resin adhesive[J]. China Adhesives, 2024, 33(1): 27-31.

王英, 郭康权, 李家宁, 等. 魔芋葡苷聚糖/壳聚糖共混胶黏剂应用于胶合板的研究[J]. 木材工业, 2009, 23(2):13-15.

WANG Y, GUO K Q, LI J N, et al. Konjac glucomannan/chitosan based adhesive for plywood production[J]. China Wood Industry, 2009, 23(2): 13-15.

Alert me when the article has been cited

提交

Correlation between Characteristic Parameters of Vertical Density Profile and Main Physical and Mechanical Properties of Medium Density Fiberboard

Manufacturing Technology of Medium Density Fiberboard Bonded with Tannin modified Two-component Soybean Flour-based Adhesives

Effect of Milling Tool Rake Angles and Cutting Parameters on Surface Roughness of Medium Density Fiberboard

Mechanical Properties and Sound Insulation Performance of Sandwich Composites Made from MDF and Rubber Damping

Properties of Fire-retardant Medium Density Fiberboard Made with Inorganic Magnesium-Aluminum Layered Double Hydroxide （MgAl-LDH）