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- Plastarch Material (PSM) is a biodegradable, thermoplastic resin. It is composed of starch combined with several other biodegradable materials. The starch is modified in order to obtain heat-resistant properties, making PSM one of few bioplastics capable of withstanding high temperatures. PSM began to be commercially available in 2005. PSM is stable in the atmosphere, but biodegradable in compost, wet soil, fresh water, seawater, and activated sludge where microorganisms exist. It has a softening temperature of 257 °F (125 °C) and a melting temperature of 313 °F (156 °C). It is also hygroscopic. The material has to be dried in a material dryer at 150 °F (66 °C) for five hours or 180 °F (82 °C) for three hours. For injection molding and extrusion the barrel temperatures should be at 340° +/- 10 °F (171 °C) with the nozzle/die at 360 °F (182 °C). Due to how similar PSM is to other plastics (such as polypropylene and CPET), PSM can run on many existing thermoforming and injection molding lines. PSM is currently used for a wide variety of applications in the plastic market, such as food packaging and utensils, personal care items, plastic bags, temporary construction tubing, industrial foam packaging, industrial and agricultural film, window insulation, construction stakes, and horticulture planters. Since PSM is derived from a renewable resource (corn starch), it has become an attractive alternative to petrochemical-derived products. Unlike plastic, PSM can also be disposed of through incineration, resulting in non-toxic smoke and a white residue which can be used as fertilizer. However, concerns have been expressed about the impact of such technologies on food prices. (en)
- 可塑性澱粉材料全名為 Plastarch Material (PSM)，是一種可生物降解的熱塑性塑料。PSM於2005年開始商用。經過酯化、交聯、接枝共聚等高分子化學加工工藝製成生物塑膠，通過對玉米澱粉和其他可再生資源的改性和塑化，使其為集剛性、韌性和彈性於一體的新型環保材料，原料可再生、降解。可以與傳統泛用塑料聚乙烯(PE) / 聚丙烯(PP) / 聚苯乙烯(PS) / 聚氯乙烯(PVC) / 乙烯/醋酸乙烯酯共聚物(EVA) / 可熱塑性橡膠(TPR) 等材質共混成為生物基塑料使用。 (zh)
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- 可塑性澱粉材料全名為 Plastarch Material (PSM)，是一種可生物降解的熱塑性塑料。PSM於2005年開始商用。經過酯化、交聯、接枝共聚等高分子化學加工工藝製成生物塑膠，通過對玉米澱粉和其他可再生資源的改性和塑化，使其為集剛性、韌性和彈性於一體的新型環保材料，原料可再生、降解。可以與傳統泛用塑料聚乙烯(PE) / 聚丙烯(PP) / 聚苯乙烯(PS) / 聚氯乙烯(PVC) / 乙烯/醋酸乙烯酯共聚物(EVA) / 可熱塑性橡膠(TPR) 等材質共混成為生物基塑料使用。 (zh)
- Plastarch Material (PSM) is a biodegradable, thermoplastic resin. It is composed of starch combined with several other biodegradable materials. The starch is modified in order to obtain heat-resistant properties, making PSM one of few bioplastics capable of withstanding high temperatures. PSM began to be commercially available in 2005. PSM is stable in the atmosphere, but biodegradable in compost, wet soil, fresh water, seawater, and activated sludge where microorganisms exist. It has a softening temperature of 257 °F (125 °C) and a melting temperature of 313 °F (156 °C). (en)
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- Plastarch material (en)
- 可塑性澱粉材料 (zh)
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