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LCD-C 91F
1.Product Description
resin granules in cylindrical crystal shape ,with slight starch fragrance ,in light yellow colour .The resin base on corn starch which is a kind of renewable material .It is a fully biodegradable and compostable polymer resin . Its finished products have a good mechanical strength ,glossy surface ,perfect elongation strength ,good flexibility and toughness . This type of products suit for film blowing .
Applications are bags (compost bags, lawn & leaf bags, pet waste bags, trash bags, grocery bags ,carry-out bags, shopping bags etc), agricultural film, consumer and industrial packaging.
2.Product Properties
project | testing method | Testing condition | unite | standard |
density | ASTM D1505-03 | @23 °C | g/cm3 | 1.10-1.15 |
melt-mass flow rate | ASTM D1238 | @190 °C, 2.16kg | g/10 min | 1.0-3.0 |
Bio-substance content | ASTM D6866 |
| % | ≥6 5 |
Melting point | ASTM 3418 |
| °C | 120 |
3.Procession Equipment
common film blowing machine equipments available
using film extruder rotation screw of L/D ratio ≥30 : 1(diameter 45mm) , which will help the finished film to achieve best film quality
4.Procession Technology
a. the screw rotation should be slow at first ,and then adjust the screw rotation faster to match the request.
b. fleshly blown film product feels a little brittle and crisp ,due to dehydration in production ,after 24 hours ,its function regains to normal plastics .
c. the preferred blow-up ratio is 1:2.5, the height from die of orifice to the nip roll should be higher than 2.5m which to insure full cooling and prevent film blocking.
d. using blowing temperature for reference
phase | Phase I | Phase II | Phase III | Phase VI | Phase V |
Temperature( °C) | 125 | 140 | 140 | 145 | 140 |
biodegradable corn starch additives