title: Preparation and characterization of acorn starch/poly(lactic acid) composites modified with functionalized vegetable oil derivates.
abstract: Composites of acorn starch (AS) and poly(1actic acid) (PLA) modified with dimer fatty acid (DFA) or dimer fatty acid polyamide (DFAPA) were produced by a hot-melt extrusion method. The effects of DFA and DFAPA contents on the mechanical, hydrophobic, thermal properties and melt fluidity of the composites were studied under an invariable AS-to-PLA mass ratio of 40/60. SEM and DMA research results show that the compatibility of AS/PLA composites are determined by the dosage of DFA or DFAPA. The hydrophobicity and melt fluidity of composites are improved with the addition of DFA and DFAPA. The glass transition temperatures of the composites are all reduced remarkably by additives DFA and DFAPA. However, DFA and DFAPA exert different effects on the mechanical properties of AS/PLA composites. In the DFAPA-modified system, the tensile and flexural strength first increase and then decrease with the increase of DFAPA dosage; the mechanical strength is maximized when the dosage of DFAPA is 2 wt% of total weight. In the DFA-modified system, the tensile and flexural strength decrease with the increase of DFA dosage.
authors.affiliation: Institute of Chemical Industry of Forestry Products, CAF, Nanjing 210042, China; Key Lab. of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China; National Engineering Lab. for Biomass Chemical Utilization, Nanjing 210042, China; Key and Lab. on Forest Chemical Engineering, SFA, Nanjing 210042, China; Institute of Forest New Technology, CAF, Beijing 100091, China.
authors.forename: Shouhai
authors.initials: S
authors.lastname: Li
authors.affiliation: Institute of Chemical Industry of Forestry Products, CAF, Nanjing 210042, China; Key Lab. of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China; National Engineering Lab. for Biomass Chemical Utilization, Nanjing 210042, China; Key and Lab. on Forest Chemical Engineering, SFA, Nanjing 210042, China; Institute of Forest New Technology, CAF, Beijing 100091, China. Electronic address: xiajianling@126.com.
authors.forename: Jianling
authors.initials: J
authors.lastname: Xia
authors.affiliation: Institute of Chemical Industry of Forestry Products, CAF, Nanjing 210042, China; Key Lab. of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China; National Engineering Lab. for Biomass Chemical Utilization, Nanjing 210042, China; Key and Lab. on Forest Chemical Engineering, SFA, Nanjing 210042, China; Institute of Forest New Technology, CAF, Beijing 100091, China.
authors.forename: Yuzhi
authors.initials: Y
authors.lastname: Xu
authors.affiliation: Institute of Chemical Industry of Forestry Products, CAF, Nanjing 210042, China; Key Lab. of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China; National Engineering Lab. for Biomass Chemical Utilization, Nanjing 210042, China; Key and Lab. on Forest Chemical Engineering, SFA, Nanjing 210042, China.
authors.forename: Xuejuan
authors.initials: X
authors.lastname: Yang
authors.affiliation: Institute of Chemical Industry of Forestry Products, CAF, Nanjing 210042, China; Key Lab. of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China; National Engineering Lab. for Biomass Chemical Utilization, Nanjing 210042, China; Key and Lab. on Forest Chemical Engineering, SFA, Nanjing 210042, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Mao
authors.affiliation: Institute of Chemical Industry of Forestry Products, CAF, Nanjing 210042, China; Key Lab. of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China; National Engineering Lab. for Biomass Chemical Utilization, Nanjing 210042, China; Key and Lab. on Forest Chemical Engineering, SFA, Nanjing 210042, China; Institute of Forest New Technology, CAF, Beijing 100091, China.
authors.forename: Kun
authors.initials: K
authors.lastname: Huang
mesh_terms: D005227:Fatty Acids / Q000737:chemistry; D009754:Nuts / Q000737:chemistry*; D009757:Nylons / Q000737:chemistry; D010938:Plant Oils / Q000737:chemistry*; D010968:Plasticizers / Q000737:chemistry; D011091:Polyesters / Q000737:chemistry*; D029963:Quercus / Q000737:chemistry*; D013213:Starch / Q000737:chemistry*; D013718:Tensile Strength
chemical_list: D005227:Fatty Acids; D009757:Nylons; D010938:Plant Oils; D010968:Plasticizers; D011091:Polyesters; C033616:poly(lactide); D013213:Starch
keywords: Acorn starch; Dimer fatty acid; Dimer fatty acid polyamides; Modified composites; Overall properties; Poly(lactic acid)