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
(Single color, multicolor drinking straw)
What is included in the straw production machine?
1. The unit is composed of an extruder, mold, forming water tank, traction cutting, etc.
Equipped with single-color, double-color, and multi-color co-extrusion models.
2. Having equipped with corresponding molds, that are able to produce: straws, spray pump tubes, label tubes, candy bars, toy tubes, and small-caliber industrial tubes of various specifications.
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 color | 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 |
Technical Parameters of drinking straw machine
| 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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