PVC发泡木塑-单板层积材共挤复合材料的制备与性能研究

陈园; 陈磊; 邢志栋; 王小玉; 郝笑龙

doi:10.12326/j.2096-9694.2025073

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PVC发泡木塑-单板层积材共挤复合材料的制备与性能研究
Preparation and Properties of Coextruded PVC Foamed Wood Plastic-Laminated Veneer Lumber Composites
1.华南农业大学生物质工程研究院；农业农村部能源植物资源与利用重点实验室，广东广州 510642
2.华南农业大学生物质学院；生物基材料与能源教育部重点实验室，广东广州 510642
3.华南农业大学艺术学院，广东广州 510642
2025年39卷第6期页码：53-61
DOI： 10.12326/j.2096-9694.2025073
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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 .