Corn starch-based biodegradable coil is an environmentally friendly material with good development prospects. It can be used to replace traditional plastics to make thermoformed food-grade lunch boxes, trays, etc.

Degradability: With corn starch as the main raw material, it can be gradually decomposed into carbon dioxide and water by microorganisms in the natural environment, which can effectively reduce the generation of plastic waste and reduce environmental pollution.

Safety: It does not contain harmful substances, such as phthalate plasticizers, bisphenol A, etc., meets food contact safety standards, is harmless to human health, and can be used in the field of food packaging with confidence.

Good processing performance: It has similar processing performance to traditional plastics, and can be processed with ordinary plastic processing equipment, such as blow molding, sheet (blister) molding, injection molding (injection molding), foaming molding, etc., which can adapt to different production process requirements. The processing temperature is generally 160℃-180℃.

Excellent physical properties: It has certain strength, toughness and elasticity, and can meet the mechanical performance requirements of thermoformed food-grade lunch boxes, trays, etc. during use. It also has good waterproof, oil-proof and temperature-resistant properties, can withstand a certain degree of high and low temperatures, can be heated in a microwave oven, and can also be refrigerated in a refrigerator.

Application advantages

Significant environmental benefits: With the improvement of environmental awareness, consumers' demand for environmentally friendly products is increasing. Lunch boxes, trays, etc. made of corn starch-based degradable coils can be naturally degraded after being discarded, which helps to reduce white pollution, meets the requirements of sustainable development, and can establish a good environmental image for the company.

Renewable resources: Corn is a widely planted crop, and corn starch resources are abundant and renewable. Compared with the petroleum resources that traditional plastics rely on, the raw material supply of corn starch-based degradable coils is relatively stable, which can effectively reduce dependence on limited petroleum resources.

Policy support: Many countries and regions have introduced relevant policies to encourage the use of degradable materials and restrict the production and use of traditional plastics. Enterprises that use corn starch-based degradable coils for production can enjoy policy preferences and support, which is conducive to the development of enterprises.

Production process

Usually, corn starch is first modified, and the performance of starch is improved through polymer chemical processing such as esterification, cross-linking, graft copolymerization, etc., so that it has thermoplastic properties. Then, the modified corn starch is mixed with other additives (such as plasticizers, stabilizers, etc.), and the coil is made into a coil through heating, melting, extrusion and other processes. During the production process, the process parameters need to be strictly controlled to ensure that the quality and performance of the coil meet the requirements. For example, during the extrusion process, parameters such as temperature, pressure and screw speed should be controlled so that the coil has uniform thickness and good physical properties. For the production of thermoformed food-grade lunch boxes and trays, the coil can be processed into the required shape and size through thermoforming processes such as blister molding and injection molding.

Market status and development prospects

At present, with the popularization of environmental protection concepts and the promotion of relevant policies, the application of corn starch-based degradable coils in the field of food packaging has gradually increased, and more and more companies have begun to pay attention to and adopt this environmentally friendly material. In the future, with the continuous advancement of technology, the performance of corn starch-based biodegradable coils will continue to improve, and production costs are expected to be further reduced. It has broad market prospects and is expected to replace traditional plastics in more fields, providing an effective solution to the problem of plastic pollution.

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