The wide use of synthetic plastic causes serious environmental pollution. Starch is used as potential alternative for non-degradable petrochemical polymers to prepare biodegradable plastic. In this work the biodegradable corn starch films were prepared, using poly (lactic acid) (PLA) coating to improve its waterproof performance. Effects of different PLA concentration on the waterproof performance of corn starch films were evaluated. Compared to starch film without PLA coating, the films coated with PLA significantly reduces water solubility and increases the mechanical stability. The film coated with 6% w v−1 PLA exhibited an excellent reduction of 40.74% in moisture absorption and an increase of 46.6% in tensile strength compared to uncoated film.
BonillaJ, AtarésL, VargasM, Properties of wheat starch film-forming dispersions and films as affected by chitosan addition. J Food Eng. 2013;114:303–312. doi: 10.1016/j.jfoodeng.2012.08.005
2.
FabraMJ, López-RubioA, CabedoL, Tailoring barrier properties of thermoplastic corn starch-based films (TPCS) by means of a multilayer design. J Colloid Interface Sci. 2016;483:84–92. doi: 10.1016/j.jcis.2016.08.021
3.
GhanbarzadehB, AlmasiH, OleyaeiSA.A novel modified starch/carboxymethyl cellulose/montmorillonite bionanocomposite film: structural and physical properties. Int J Food Eng. 2013;10:121–130. doi: 10.1515/ijfe-2012-0197
4.
PutriRDA, SetiawanA, AnggrainiPD.Effect of carboxymethyl cellulose (CMC) as biopolymers to the edible film sorghum starch hydrophobicity characteristics. AIP Conference Proceedings 1818; 2017; 020044.
5.
FeiX.Tensile behavior of full-biodegradable PLA/PPC/starch blending film. New Chem Mater. 2011;39:79–80.
6.
OteyFH, MarkAM, MehltretterCL, Starch-based film for degradable agricultural mulch. Ind Eng Chem Prod Res Dev. 1974;13:90–92. doi: 10.1021/i360049a018
7.
XiongHG, TangSW, TangHL, The structure and properties of a starch-based biodegradable film. Carbohydr Polym. 2008;71:263–268. doi: 10.1016/j.carbpol.2007.05.035
8.
JariyasakoolrojP, ChirachanchaiS.Silane modified starch for compatible reactive blend with poly(lactic acid). Carbohydr Polym. 2014;106:255–263. doi: 10.1016/j.carbpol.2014.02.018
9.
SanyangML, SapuanSM, JawaidM, Development and characterization of sugar palm starch and poly (lactic acid) bilayer films. Carbohydr Polym. 2016;146:36–45. doi: 10.1016/j.carbpol.2016.03.051
10.
LeeSY, HannaMA.Preparation and characterization of tapioca starch-poly(lactic acid)-cloisite NA+ nanocomposite foams. J Appl Polym Sci. 2008;110:2337–2344. doi: 10.1002/app.27730
11.
TverdokhlebovSI, ChoinzonovEL, KolokolovaOV, Comparison of titanium mesh implants with PLA-hydroxyapatite coatings for maxillofacial cancer reconstruction. AIP Conf Proc. 2016;1760:020067. doi: 10.1063/1.4960286
12.
ChenY, SongY, ZhangS, Interaction between a high purity magnesium surface and PCL and PLA coatings during dynamic degradation. Biomed Mater. 2011;6:1–8. doi: 10.1088/1748-6041/6/2/025005
13.
RhimJW, LeeJH, HongSI.Increase in water of paperboard by coating with poly(lactide). Packag Technol Sci. 2007;20:393–402. doi: 10.1002/pts.767
14.
BergelBF, LuzLM, SantanaRMC.Effect of poly(lactic acid) coating on mechanical and physical properties of thermoplastic starch foams from potato starch. Prog Org Coat. 2018;118:91–96. doi: 10.1016/j.porgcoat.2018.01.029
15.
VercelhezeAES, FakhouriFM, Dall'AntôniaLH, Properties of baked foams based on cassava starch, sugarcane bagasse fibers and montmorillonite. Carbohydr Polym. 2012;87:1302–1310. doi: 10.1016/j.carbpol.2011.09.016
16.
ZhouXM, ShengJ, LiuX, Preparation and characterization of pea starch /polylactic acid double layer film. Biomass Chem Eng. 2018;52:18–22.
17.
ZhangR, XuW, JiangF.Fabrication and characterization of dense chitosan/polyvinyl-alcohol/poly-lactic-acid blend membranes. Fibers Polym. 2012;13:571–575. doi: 10.1007/s12221-012-0571-4
18.
Salazar-SánchezMR, Campo-ErazoSD, Villada-CastilloHS, Structural changes of cassava starch and polylactic acid films submitted to biodegradation process. Int J Biol Macromol. 2019;129:442–447. doi: 10.1016/j.ijbiomac.2019.01.187
19.
ZhaoX, WuT, LinQ, Synthesis and characterization of optical active PLA degradable materials. Mater Sci Forum. 2015;815:464–469. doi: 10.4028/www.scientific.net/MSF.815.464
20.
WuCS.Characterizing biodegradation of PLA and PLA-g-AA/starch films using a phosphate-solubilizing bacillus species. Macromol Biosci. 2008;8:560–567. doi: 10.1002/mabi.200700181
21.
RhimJW, LeeJH, NgPKW.Mechanical and barrier properties of biodegradable soy protein isolate-based films coated with polylactic acid. LWT - Food Sci Technol. 2007;40:232–238. doi: 10.1016/j.lwt.2005.10.002
22.
GarlottaD.A literature review of poly(lactic acid). J Polym Environ. 2001;9:63–84. doi: 10.1023/A:1020200822435
23.
WanJM, CaoX, CuiL.Effect of chloroform mixed solvent on properties of polylactic acid films. J Wuhan Textile Univ. 2019;32:44–47.
24.
HuRH, SunMY, LimJK.Moisture absorption, tensile strength and microstructure evolution of short jute fiber/polylactide composite in hygrothermal environment. Mater Des. 2010;31:3167–3173. doi: 10.1016/j.matdes.2010.02.030
25.
CaoJ, CaoS, WeiW, Stepwise regression analysis on PLA / tencel knitted fabric structure and performance of moisture absorption and quick dry. Adv Mat Res. 2011;332-334:1114–1117.
26.
ForuzanmehrM, VuillaumePY, ElkounS, Physical and mechanical properties of PLA composites reinforced by TiO2 grafted flax fibers. Mater Des. 2016;106:295–304. doi: 10.1016/j.matdes.2016.05.103
27.
GuoC, GuoX, CaiN, Novel fabrication method of porous poly(lactic acid) scaffold with hydroxyapatite coating. Mater Lett. 2012;74:197–199. doi: 10.1016/j.matlet.2012.01.085
28.
ParrottLJ.Variations of water absorption rate and porosity with depth from an exposed concrete surface: Effects of exposure conditions and cement type. Cem Concr Res. 1992;22:1077–1088. doi: 10.1016/0008-8846(92)90038-W
