Preparation and Properties of Coextruded PVC Foamed Wood Plastic-Laminated Veneer Lumber Composites

CHEN Yuan; CHEN Lei; XING Zhidong; WANG Xiaoyu; HAO Xiaolong

doi:10.12326/j.2096-9694.2025073

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Preparation and Properties of Coextruded PVC Foamed Wood Plastic-Laminated Veneer Lumber Composites
1.Institute of Biomass Engineering，Key Laboratory of Energy Plants Resource and Utilization（Ministry of Agriculture and Rural Affairs），South China Agricultural University，Guangzhou 510642，Guangdong，China
2.Key Laboratory for Biobased Materials and Energy of Ministry of Education，College of Future Biomass，South China Agricultural University，Guangzhou 510642，Guangdong，China
3.College of Arts，South China Agricultural University，Guangzhou 510642，Guangdong，China
Vol. 39, Issue 6, Pages: 53-61(2025)
DOI： 10.12326/j.2096-9694.2025073
稿件说明：

移动端阅览

陈园,陈磊,邢志栋等.PVC发泡木塑-单板层积材共挤复合材料的制备与性能研究[J].木材科学与技术,2025,39(06):53-61. DOI： 10.12326/j.2096-9694.2025073.

CHEN Yuan,CHEN Lei,XING Zhidong,et al.Preparation and Properties of Coextruded PVC Foamed Wood Plastic-Laminated Veneer Lumber Composites[J].Chinese Journal of Wood Science and Technology,2025,39(06):53-61. DOI： 10.12326/j.2096-9694.2025073.

摘要

木塑复合材料因密度大、易蠕变等特点严重限制其在工程结构领域的应用。为解决上述问题，研究以耐水防潮的稻壳/聚氯乙烯发泡复合材料（rice

husk-polyvinyl chloride foamed composites，RHPC）（简称为PVC发泡木塑）为表层，单板层积材（laminated veneer lumber，LVL）为芯层，通过自主搭建设计的多元共挤装置制备PVC发泡木塑-LVL共挤复合材料（RHPC-LVL composites，RHPC-LVL）。结果显示，RHPC-LVL的密度约为0.6 g/cm

，弯曲强度和弯曲模量分别为102.6 MPa与11.4 GPa，介于RHPC和LVL之间；比弯曲强度与比弯曲模量较表层RHPC分别提高了38.1%和96.7%。相较于未封端处理的样品，经封端处理后的RHPC-LVL耐老化性能大幅提升，6次加速老化后弯曲强度和弯曲模量的保留率分别为63.5%和38.6%。当施加载荷增至30%极限强度时，RHPC-LVL的800 h蠕变应变较LVL提高16.5%，RHPC在30 ℃和60 ℃短期蠕变应变较LVL分别提高33%和200%；通过采用典型的蠕变模型对蠕变阶段和恢复阶段分别进行拟合，为RHPC-LVL在工程领域应用中的蠕变预测提供理论基础。本研究为RHPC-LVL的开发和应用提供指导。

Abstract

Traditional wood plastic composites (WPC) are extremely limited in engineering structural applications due to their high density and susceptibility to creep behavior. To address these issues

this study developed a composite using a water-resistant

moisture-proof rice husk-polyvinyl chloride foamed composite (RHPC) as the surface layer and laminated veneer lumber (LVL) as the core layer

via a custom-designed co-extrusion device. The resulting RHPC-LVL composites (RHPC-LVL) exhibited a density of approximately 0.6 g/cm³

with a flexural strength of 102.6 MPa and a flexural modulus of 11.4 GPa

falling between those of RHPC and LVL. Compared to the surface RHPC

the specific flexural strength and specific flexural modulus of RHPC-LVL increased by 38.1% and 96.7%

respectively. After end-capping treatment

the aging resistance of RHPC-LVL was significantly improved

with flexural strength and flexural modulus being 63.5% and 38.6% of the control specimens after six accelerated aging cycles.When the applied load increased to 30% of the ultimate strength

the 800-hour creep strain of RHPC-LVL increased by 16.5% compared to LVL. The short-term creep strain of RHPC at 30 °C and 60 °C increased by 33% and 200% compared to LVL

respectively. By fitting the creep and recovery stages using commonly used creep models

this study provided a theoretical basis for predicting the short-term creep of RHPC-LVL in engineering structural applications. This research could offer guidance for the development and application of RHPC-LVL.

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references

王清文，王伟宏 . 木塑复合材料制造与应用 [M ] . 北京：科学出版社， 2018 .

HAO X L , XU J J , ZHOU H Y , et al . Interfacial adhesion mechanisms of ultra-highly filled wood fiber/polyethylene composites using maleic anhydride grafted polyethylene as a compatibilizer [J ] . Materials & Design , 2021 , 212 : 110182 .

TANG W , XU J J , FAN Q , et al . Rheological behavior and mechanical properties of ultra-high-filled wood fiber/polypropylene composites using waste wood sawdust and recycled polypropylene as raw materials [J ] . Construction and Building Materials , 2022 , 351 : 12 .

ZHOU H Y , LI W J , HAO X L , et al . Recycling end-of-life WPC products into ultra-high-filled, high-performance wood fiber/polyethylene composites: a sustainable strategy for clean and cyclic processing in the WPC industry [J ] . Journal of Materials Research and Technology , 2022 , 18 : 1 - 14 .

CHEN L , TANG W , ZHOU H Y , et al . Constructing a rigid-flexible grid structure for simultaneously strengthening and toughening bamboo flour/plastic composites through the introduction of continuous carbon fabric meshes via multi-layer co-extrusion [J ] . Composites Science and Technology , 2023 , 242 : 10 .

NEGAWO T A , POLAT Y , KILIC A . Effect of compatibilizer and fiber loading on ensete fiber-reinforced HDPE green composites: physical, mechanical, and morphological properties [J ] . Composites Science and Technology , 2021 , 213 : 8 .

牛征北 , 易欣 , 颜涛 , 等 . 全屋整装趋势下实木家具行业的转型策略 [J ] . 木材科学与技术 , 2022 , 36 ( 4 ): 81 - 87 .

NIU Z B , YI X , YAN T , et al . Transformation strategy for solid wood furniture industry under whole-house decor trend [J ] . Chinese Journal of Wood Science and Technology , 2022 , 36 ( 4 ): 81 - 87 .

郝笑龙 , 周海洋 , 孙理超 , 等 . 共挤出成型木塑复合材料研究进展与应用 [J ] . 林业工程学报 , 2021 , 6 ( 5 ): 27 - 38 .

HAO X L , ZHOU H Y , SUN L C , et al . Research progress and application of co-extruded wood plastic composites [J ] . Journal of Forestry Engineering , 2021 , 6 ( 5 ): 27 - 38 .

黄润州 . 芯-表结构木塑复合材料机械性能与热膨胀性能的研究 [D ] . 南京：南京林业大学 , 2012 .

郝笑龙 . 基于壳层增强聚乙烯基共挤出木塑性能研究 [D ] . 哈尔滨：东北林业大学 , 2018 .

XU J J , HAO X L , ZHOU H Y , et al . High-and low-temperature performance of ultra-highly filled polypropylene-based wood plastic composite [J ] . Acta Materiae Compositae Sinica 2021 , 38 ( 12 ): 4106 - 4122 .

XUE C , GAO H , HU Y , et al . Experimental test and curve fitting of creep recovery characteristics of modified graphene oxide natural rubber and its relationship with temperature [J ] . Polymer Testing , 2020 , 87 : 12 .

王小玉 . 木塑实木复合材料建筑窗研究 [D ] . 哈尔滨：东北林业大学 , 2017 .

YANG C , LI X , FANG H , et al . An experimental investigation of static and fatigue behaviour of GFRP sandwich beams with a web reinforced wood core [J ] . Construction and Building Materials , 2020 , 253 : 18 .

ZHAO L L , XI F . Flexural performance of reinforced aluminum-wood-plastic composite beam: An experimental and numerical investigation [J ] . Thin-Walled Structures , 2022 , 180 : 109910 .

FU H , DUN M , WANG H , et al . Creep response of wood flour-high-density polyethylene/laminated veneer lumber coextruded composites [J ] . Construction and Building Materials , 2020 , 237 : 10 .

邢志栋 , 徐俊杰 , 欧荣贤 , 等 . 密度对稻壳/聚氯乙烯发泡复合材料尺寸稳定性及力学性能的影响 [J ] . 木材科学与技术 , 2024 , 38 ( 3 ): 56 - 63 .

XING Z D , XU J J , OU R X , et al . Effect of density on the dimensional stability and mechanical properties of rice husk/polyvinyl chloride foamed composite materials [J ] . Chinese Journal of Wood Science and Technology , 2024 , 38 ( 3 ): 56 - 63 .

ZONG G G , HAO X L , HAO J X , et al . High-strength, lightweight, co-extruded wood flour-PVC/lumber composites: Effects of wood content in shell layer on mechanical properties, creep resistance, and dimensional stability [J ] . Journal of Cleaner Production , 2020 , 244 : 118860 .

CHEN L , HAO X L , ZHOU H Y , et al . A comparative study of the experimental and modeling for the creep-recovery behaviors of bamboo flour/polyethylene composites enhanced with a “rigid-flexible” grid structure [J ] . Industrial Crops and Products , 2025 , 224 : 10 .

CHEN L , GAO F , LIU J , et al . Enhancing wood-plastic composites for high-performance structural applications [J ] . Composites Part B-Engineering , 2025 , 299 : 9 .

TSCHARNUTER D , MULIANA A . Nonlinear response of viscoelastic polyoxymethylene (POM) at elevated temperatures [J ] . Polymer , 2013 , 54 ( 3 ): 1208 - 1217 .

GH/T 1383—2022 ，谷壳再生木 [S ] .

梅生启 , 唐广 , 杨斌 , 等 . 基于分数阶黏弹性模型的木塑复合材料蠕变/回复性能分析 [J ] . 复合材料学报 , 2020 , 37 ( 8 ): 2055 - 2064 .

MEI S Q , TANG G , YANG B , et al . Creep/recovery behavior analysis of wood-plastic composites based on fractional order viscoelastic model [J ] . Acta Materiae Compositae Sinica , 2020 , 37 ( 8 ): 2055 - 2064 .

陈文礼 , 欧荣贤 , 郭雨佳 , 等 . 多元共挤出木塑复合材料界面结合性能 [J ] . 复合材料学报 , 2025 , 42 ( 1 ): 465 - 475 .

CHEN W L , OU R X , GUO Y J , et al . Interfacial bonding properties of multi-phase co-extruded wood-plastic composites [J ] . Acta Materiae Compositae Sinica , 2025 , 42 ( 1 ): 465 - 475 .

唐伟 , 徐俊杰 , 孙理超 , 等 . 轻质高强耐候多元共挤木塑复合材料制备及性能 [J/OL ] . 复合材料学报 . https://doi.org/10.13801/j.cnki.fhclxb.20251020.004 https://doi.org/10.13801/j.cnki.fhclxb.20251020.004 .

TANG W , XU J J , SUN L C , et al . Preparation and properties of lightweight, high-strength and weather-resistant multi-component co-extruded wood-plastic composites [J/OL ] . Acta Materiae Compositae Sinica . https://doi.org/10.13801/j.cnki.fhclxb.20251020.004 https://doi.org/10.13801/j.cnki.fhclxb.20251020.004 .

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