RECYCLED FIBRES AND FIBRE SLUDGE AS REINFORCEMENT MATERIALS IN INJECTION MOLDED COMPOSITES
Wood flour or sawdust is often used as filler in conventional wood plastic composite(WPC)materials.However,there has been an increasing interest to the use of wood pulp fibres in reinforced plastic applications,because they can provide enhanced strength properties and better biodegradability characteristics for the composite.This research compares the effect of recycled fibres or side streams of paper as reinforcement in polylactic acid(PLA)or polypropylene(PP)composites.Fibre material from liquid packaging board,non-deinked old newspapers and fibre sludge from recycling processes are compared with virgin softwood kraft pulp fibres.Composites were produced by melt processing to a fibre content of 30 wt.%(or 10 wt.%fibre sludge),and the mechanical properties were investigated.Recycled fibres provided comparable,or even higher,plastic reinforcement than virgin softwood fibres.In polypropylene composites,the differences in mechanical properties between different fibre types were relatively small.Fibre sludge decreased the mechanical performance of composites but can be considered as cheap filler in cases when mechanical properties are not crucial.The possibility to use low-cost materials like recovered paper or deinking sludge in wood plastic composites is an interesting option for future sustainable applications.
Elina P(a)(a)kk(o)nen Lisa Wikstr(o)m Heidi Peltola Ky(o)sti Valta Elias Retulainen
Department of Fibres and Biobased Materials,VTT Technical Research Centre of Finland Ltd,Koivurannan Department of Fibres and Biobased Materials,VTT Technical Research Centre of Finland Ltd,Sinitaival
国际会议
第五届制浆造纸新技术国际研讨会(ISETPP)暨第三届国际造纸与环境学术大会(IPEC)
广州
英文
1-6
2016-11-07（万方平台首次上网日期，不代表论文的发表时间）