What are Biodegradable Polymers?
Biodegradable materials, by definition, change their chemical and potentially physical form upon contact with the biological environment. There are two distinct stages to the biodegradation process, especially in bulk degradation. The first stage is restricted to the random cleavage of molecular linkages. The resulting decrease in molecular weight produces some change in mechanical properties and morphology, but no weight loss (Brannon-Peppas 1997). The second stage involves a measurable weight loss in addition to chain cleavage. It begins when the molecular weight of the polymer has decreased to the point that chain scission produces oligomers that are small enough to solubilize and diffuse out from the network. These oligomers are necessarily released into the adjacent tissue and therefore should be biocompatible. PLA/PP Biodegradable plastic drinking straw extruder
What is included in the straw production machine?
1. The unit is composed of an extruder, mold, forming water tank, traction cutting, etc.
1. It has wide application: PLA Corn starch, Plastic Drink straw making, lollipop stick, cotton stick, medical tube, all kinds of toys tube, etc;
2. Easy to operate. A single operator is able to operate the whole production line;
3. Cut form: Diversified cut-end: 90°/90°, 90°/45°, 90°/60°, 45°/45°, 60°/60°;
4. The production line has a stable output and a wide range of color options.
| Model | Screw diameter (mm) | L/D | Main motor (Kw） | Product size (mm) |
| One colour | Ф50 | 25 | 7.5 | Ф1-Ф10 |
| Two-colour | Ф50*1
Ф25*1 |
25 | 7.5
0.75*1 |
Ф1-Ф13 |
| Three-colour | Ф50*1
Ф25*2 |
25 | 7.5
0.75*2 |
Ф1-Ф13 |
| Model | Screw diameter（mm） | L/D | Main motor（Kw） | Product size (mm) |
| One colour | Ф50 | 25 | 7.5 | Ф1-Ф10 |
| Two-color | Ф50*1
Ф25*1 |
25 | 7.5
0.75*1 |
Ф1-Ф13 |
| Three-color | Ф50*1
Ф25*2 |
25 | 7.5
0.75*2 |
Ф1-Ф13 |
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