复合阻燃型PE–HD/竹粉木塑复合建筑模板料制备  

Preparation of Flame Retardant PE–HD/Bamboo Powder Composite for Building Formwork

作　　者：王焱[1] 唐杰[1] 王东炜[2] 丁舒媚[1] Wang Yan;Tang Jie;Wang Dongwei;Ding Shumei(School of Urban Construction,Henan Polytechnic Institute,Nanyang 473000,China;School of Civil Engineering,Zhengzhou University,Zhengzhou 450001,China)

机构地区：[1]河南工业职业技术学院城市建设学院,河南南阳473000 [2]郑州大学土木工程学院,郑州450001

出　　处：《工程塑料应用》2018年第6期20-24,共5页Engineering Plastics Application

基　　金：国家自然科学基金项目(51278468)

摘　　要：以高密度聚乙烯(PE–HD)和竹粉为原料,以马来酸酐接枝聚乙烯(PE-g-MAH)为共混增容剂,以膨胀石墨和三聚氰胺为阻燃剂,利用熔融共混法制备了一种阻燃型PE–HD/竹粉木塑复合材料。当体系中PE-g-MAH的质量分数为3%时,随着竹粉用量增加,复合材料的拉伸强度和冲击强度得到明显改善。与单一组分的阻燃剂相比,膨胀石墨/三聚氰胺复合型阻燃剂的阻燃效果更好,而且阻燃剂的添加不仅未对复合材料的力学性能产生不良影响,还在一定程度上降低了复合材料的吸水率。当PE–HD/竹粉/PE-g-MAH/膨胀石墨/三聚氰胺的质量比为60/27/3/5/5时,相应的木塑复合材料的拉伸强度为31 MPa,断裂伸长率为340%,缺口冲击强度为53.0 kJ/m^2,吸水率为5.03%,极限氧指数为30.2%。When high density polyethylene （PE–HD） and bamboo powder were used as raw materials,maleic anhydride grafted polyethylene （PE-g-MAH） was employed as blending solubilizer,expanded graphite and melamine were used as flame retardants,a type of flame retardant PE–HD/bamboo powder wood-plastic composite material was prepared by melt blending method. When the content of PE-g-MAH is higher than 3 wt%,the tensile strength and impact strength of the material are obviously improved with the increase of the amount of bamboo powder. Compared with the single component flame retardant,the expanded graphite/melamine compound flame retardant showed better flame retardancy. The mechanical properties of the material of the obtained polyethylene/bamboo powder wood-plastic composite materials are not affected by the addition of flame retardant,while the water absorption decreased. When the mass ratio of polyethylene/bamboo power/PE-g-MAH/expanded graphite/melamine is 60 /27/3/5/5,the tensile strength of the corresponding wood-plastic composite is 31 MPa,the elongation at break is 340%,the notch impact strength is 53.0 kJ/m2,the water absorption is 5.03%,the limiting oxygen index is 30.2%.

关 键 词：木塑复合材料 高密度聚乙烯 竹粉 复合型阻燃剂 

分 类 号：TQ31[化学工程—高聚物工业]