Abstract
Loose-fill packaging sponges were extruded from mixtures of 54–62% hydroxypropylated (HP ≍ 5%) amylomaize V (50% amylose) and wheat starches, 17–24% synthetic polymer, ∼13% water, 7% blowing agent(s), and 0.5% nucleating agent. One product made from 28% HP wheat starch, 28% HP amylomaize V starch, 12% ethylene vinyl alcohol (EVOH) copolymer, 8% polystyrene (PS), and 3% polystyrene maleic anhydride (PSMA) copolymer, plus the other raw materials, had a compressibility and resilience that matched those of expanded polystyrene (EPS), although its bulk density was four times higher. The starchy sponge showed 16% shrinkage in volume at 90% relative humidity and was 2% soluble in excess water, both at 25°C. After aging for 18 months near 25°C, the HP starchy sponge gave only a trace of fines in a simulated ship** test, compared to 20% fines from a biodegradable, starch-based, loose-fill sponge of commerce.
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REFERENCES
P. D. Tatarka (1995) Proceedings of the SPE 53rd Annual Technical Conference & Exhibits, Boston, MA, Society of Plastics Engineers, Brookfield, CT, May 7–11, 1995, pp. 2225-2231.
P. D. Tatarka and R. L. Cunningham (1998) J. Appl. Polym. Sci. 67(7), 1157-1176 (1998).
W. M. Doane (1994) Cereal Foods World 39, 556-562.
J. J. G. van Soest, S. H. D. Hulleman, D. DeWit, and J. F. G. Vliegenthart (1996) Carbohydr. Polym. 29, 225-232.
R. L. Shogren, C. L. Swanson, and A. R. Thompson (1992) Starch/Starke 44, 335-338.
R. L. Shogren (1996) Carbohydr. Polym. 29, 57-62.
N. Lacourse and P. Altieri (1991) U.S. Patent 5,043,196.
C. L. Swanson, R. P. Westhoff, and W. M. Doane (1988) Proceedings of Corn Utilization Conference—II, National Corn Grower Association, St. Louis, MO, pp. 499-521.
S. Takagi, M. Koyama, H. Kameyama, and Y. Tokiwa (1994) in Y. Doi and K. Fukuda, (Eds.), Biodegradable Plastic and Polymers, Elsevier, Amsterdam, pp. 437-442.
J. L. Jane and S. T. Lim (1994) J. Environ. Polym. Degrad. 2, 111-120.
F. H. Otey, R. P. Westhoff, and W. M. Doane (1987) Ind. Eng. Chem. Prod. Res. Dev. 26, 1659-1663.
R. L. Shogren, G. F. Fanta, and W. M. Doane (1993) Starch/Starke 45, 276-280.
Y. Yoshida and T. Uemura (1994) in Y. Doi and K. Fukuda (Eds.), Biodegradable Plastics and Polymers, Elsevier, Amsterdam, pp. 443-450.
Koch, H. Roper, and R. Hopcke (1993) in F. Meuser, D. J. Manners, and W. Seibel (Eds.), Plant Polymeric Carbohydrate, Roy. Soc. Chem. Spec. Publ. 134, pp. 157-179.
G. J. Fanta, C. L. Swanson, and W. M. Doane (1992) Carbohydr. Polym. 17, 51-58.
C. Bastioli, V. Bellotti, M. Camia, L. Del Giudice, and A. Rallis (1994) in Y. Doi and K. Fukuda (Eds.), Biodegradable Plastics and Polymers, Elsevier, Amsterdam, pp. 200-213.
R. Chinnaswamy and M. A. Hanna (1991) Starch/Starke 43, 396-402.
R. Vaidya and M. Bhattacharya (1994) J. Appl. Polym. Sci. 52, 617-628.
L. B. Rockland (1960) Anal. Chem. 32, 1375-1378.
A. Xu and P. A. Seib (1997) J. Cereal Sci. 25, 17-26.
E. R. George, T. M. Sullivan, and E. H. Park (1994) Polym. Eng. Sci. 34, 17-26.
K. E. J. Ward, R. C. Hoseney, and P. A. Seib (1994) Cereal Chem. 71, 150-155.
M. T. Kalichevsky, P. D. Orford, and S. G. Ring (1990) Carbohydr. Res. 198, 49-55.
S. Bhatnagar and M. A. Hanna (1996) Cereal Chem. 73, 601-604.
S. Bhatnagar and M. A. Hanna (1995) Trans. ASAE 38, 567-571.
J.-J. G. Van Soest (1997) Agro-Food-Ind. Hi-Tech 2, 17-22.
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Shi, B., Cha, J.Y. & Seib, P.A. Humidity- and Age-Tolerant Starch-Based Sponge for Loose-Fill Packaging. Journal of Polymers and the Environment 6, 133–141 (1998). https://doi.org/10.1023/A:1021865329344
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DOI: https://doi.org/10.1023/A:1021865329344