CAJ | 학술논문

通过测试PVC基木塑装饰板的物理力学性能，研究复合发泡剂配比和发泡剂添加方式对PVC木塑装饰板的密度、抗弯强度、表面结合强度、板面握螺钉力和72 h吸水厚度膨胀率的影响。结果表明：添加当复合发泡剂AC、ZnO、NaHCO3配比为6∶1∶4时，PVC木塑复合装饰板的抗弯强度、表面结合强度、板面握螺钉力最大，分别为21．08 MPa、0．67 MPa、0．82 kN，达到GB／T 24137—2009《木塑装饰板》的要求；采用直接添加发泡剂的PVC木塑复合装饰板的力学性能优于采用先混合物料后添加发泡剂的PVC木塑复合装饰板的力学性能。
통과측시PVC기목소장식판적물리역학성능，연구복합발포제배비화발포제첨가방식대PVC목소장식판적밀도、항만강도、표면결합강도、판면악라정력화72 h흡수후도팽창솔적영향。결과표명：첨가당복합발포제AC、ZnO、NaHCO3배비위6∶1∶4시，PVC목소복합장식판적항만강도、표면결합강도、판면악라정력최대，분별위21．08 MPa、0．67 MPa、0．82 kN，체도GB／T 24137—2009《목소장식판》적요구；채용직접첨가발포제적PVC목소복합장식판적역학성능우우채용선혼합물료후첨가발포제적PVC목소복합장식판적역학성능。
The effects of the ratios and adding ways of foaming agent on the properties of the PVC wood-plastic composite(WPC)decorative boards by testing the physical and mechanical properties.Results showed that,when the ratio of composite foaming agent AC,ZnO,NaHCO3 was 6∶1∶4,the bending strength,the surface bonding strength,and the screw holding capability of WPC decorative boards to maximum were 21. 08 MPa,0. 67 MPa,0. 82 KN,respectively.And then they met the GB/T 24137—2009standards.The mechanical properties of WPC decora-tive boards with directly adding the composite foaming agent were better than that with first mixing and then adding the foaming agent.