Film Blowing Grade Starch Based Compostable Resin

NEXUS 805F Biodegradable Starch Resin

Film blowing grade Starch Based Compostable Resin

Granules are in light yellow, with slight starch fragrance, easily absorb moisture and easily decomposed by microbes within 90 days, anti-static, easily colored. Granules come in cylinder or round shape. The processing temperature is lower than that of conventional plastic. Such granules can be directly processed into finish products without adding any other polyolefin materials like PE, PP, PS, PVC, etc. Applications are for compostable packing film and compostable bags, including shopping bags, garbage bags, pet waste bags, electronic products packing bags, etc.

Typical Properties

Testing Item Standard Unit Result

Appearance Q/320113SSD001–2002 Light yellow

Density GB 1033 g/cm3 1.15–1.30

Moisture Content Q/320113SSD001–202 % 0.5 – 1

Melt Flow Rate GB3682 g/10 min 2 -5

Tensile strength GB 1040 MPa ≥15

Breaking Elongation GB 1040 % ≥350

Bio Substances content Q/320113SSSD001-2002 % ≥98

n-hexane Extracts GB/T5009.58 % ≤4.0

Softening Point GB/1633 oC >70

Degradation rate-100 days ASTM D6400/EN13432 % >99

Processing Equipment

Common film blowing machine, sheet extruder, bag making machine printers, heat seal machine, etc, can be used to process bio-products. The resin is especially suitable for downward blowing and water-cooling systems.

Processing Technology

Using film extruder with a screw of L/D ratio ≥28:1, and the blow-up ratio should be more than 1:3, which will help to achieve maximum production yield and best film quality.

The fresh blown film feels brittle and crisp. Its elongation is fairly low. This is due to the severe dehydration during production. After a 24 hour curing period, it will regain its properties of tensile strength and elongation. Therefore, newly made film needs 24 hours of curing period before further processing like printing or bag-making.

Remarks

Due to the high starch content, the resin easily absorbs moisture. It needs to be stored in a dry environment, and the packaging should be sealed properly to prevent moisture.

In case the resin is damp, it should be dried for 2 hours at 80oC.

During processing, the temperature is correct when the corn starch fragrance can be smelled at the hopper.

It can be decomposed into soil friendly substances under a microbial environment within 90 days.

Nexus Resin Group, LLC has no control over the use to which others may put this material. Nexus Resin Group, LLC does not guarantee that the same results as described will be obtained by the end user. Nexus Resin Group, LLC does not guarantee the effectiveness or safety of any material for the design or the suitability of the material nor the designs of both for the end user’s own particular use. Statements concerning possible or suggested uses of the materials or designs described herein are not to be construed as recommendations for use of such materials or designs.

Nexus Resin Group, LLC

37 Water Street Mystic, CT 06355

860-536-1550 Office 860-536-1275 Fax