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PSM
PSM - a new environment and ecology protection material

Plastic, which is produced from petrochemical, is the most widely used material on earth, but it will fully pollute the world in next few centuries. Petroleum resources are finite and the oil supply is limited. Therefore it becomes important for human to find plastic substitutes, especially in packaging and disposable applications.

An environmental friendly substitute is always regarded as a "dream product" entering the new Millennium era.

PSM is a polymer that is derived from the natural source of plant starch. Plant starch is a kind of polysaccharide polymer which consists of glucoses. It has two separate forms of linear and branched molecules, named as amylose and amylopectin respectively. During the modification process, plant starch is mixed with cellulose and enzymes in a large stirrer where condensation and polymerization happen to modify the starch properties. Enzyme addition and crosslink technique transforms the molecular structure of starch which has three distinguishable properties:
Change from hydrophile to hydrophobe
Change from heat sensitivity to high temperature resistance
Change from brittleness to plasticity

This modification process of plant starch creates PSM crystals. The crystals will be fed into a twin-screw extruder where starch plasticization happens continuously. The repeated kneading of the plasticized starch increases the rigidity of PSM. Some percentage of water moisture is removed in the extruder. At the end of the extrusion, PSM grains are produced.

PSM application scope
It can be used for a variety of manufacturing processes such as film blowing: film, packaging bag, disposable bag, shopping bag and other membrane products etc.
injection: cutlery, golf pegs, stationery, toys, craftwork etc.
extrusion: PSM plate and sheet for plates, dishes, boxes, bowls etc. 
foaming : shockproof package materials.
Traditional plastic manufacturing machine is good enough to product PSM ranges of products.

PSM MATERIAL CHARACTERISTICS
Plant starch, a renewable resource, is the major raw material of PSM where the supply is abundant and the cost is low and stable in China. 
A unique and revolutionary ecological material that is degraded into harmless substances such as water and carbon dioxide.
A genuine environmental-friendly product from manufacturing to post-use disposal. No wastewater, effluent gas or waste residual discharged throughout the manufacturing process. Excellent product performance properties with water-proof, oil-proof, high melting point, which is superior to those similar products in the domestic market.

INDUSTRIAL OVERVIEW
Application of plastic materials in daily life is regarded as a great invention in the last century, but is causing pollutions around world and consumes our natural resources. It has evident that the ecosystem is considerably disturbed and damaged as a result of the high disposable of plastics all over the world.

INDUSTRIAL OVERVIEW
Application of plastic materials in daily life is regarded as a great invention in the last century, but is causing pollutions around world and consumes our natural resources. It has evident that the ecosystem is considerably disturbed and damaged as a result of the high disposable of plastics all over the world.

Market Trend of Eco-Friendly Plastics

Strong Year-to-Year Growth
Being a revolutionary new material features with a replacement of conventional plastics, a substantial growth is expected where innovative manufacturing practices, market innovation and distinctive product features that are likely to create demand in the next decade.

Cost Reduction Follows Volume Growth
The increasing overall production size within the industry will also bring to economic advantages such as price reduction and enhance the competitiveness with conventional plastics.

Enormous market size of end-product use made from Environmental-friendly plastics
It is estimated that, in the 2010, end-products made from environmental-friendly plastics will reach 10 to 20% of all those made from conventional plastics. The market size for environmental-friendly plastics is enormous which plays a role as a replacement of conventional plastics.

Packaging material is the most popular application
Due to the short-life span of usage in regards of packaging material, it creates a considerable issue on its disposal. Eco-friendly polymer for packaging continues to receive more attention than those designated for any other applications, which have a substantial market potential.

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