Difference between PP&PE, raw material of plant support net.
When we cultivate indoor plants or grow climbing plants, we often use plant climbing nets. The grid can be used horizontally to make plants achieve uniform ventilation or light conditions. The grid can also be used vertically to support climbing plants and fruits.
Commonly used plant support nets are usually made of PP material (polypropylene) and PE material (polyethylene).
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So what is the difference between PP material and PE material?
- From the material point of view, PP material is more resistant to high temperature, while PE material is more resistant to low temperature.
- In terms of hardness, PP material is harder and more resistant to scratches, and PE material is more tough (HDPE is also very hard).
- In terms of weight, PP material is lighter and PE material is heavier.
- From the perspective of corrosion resistance, PE materials are more resistant to oxidation.
Moreover, both PP and PE materials have very good toughness, tensile and corrosion resistance, and can meet the requirements of plant support nets.
Polyethylene is abbreviated as PE, which is a kind of thermoplastic resin made by polymerization of ethylene. In industry, it also includes copolymers of ethylene and a small amount of α-olefin. Polyethylene is odorless, non-toxic, feels like wax, has excellent low temperature resistance (the minimum use temperature can reach -70～-100℃), has good chemical stability, and can withstand most acids and alkalis (not resistant to oxidizing properties) The acid), insoluble in general solvents at room temperature, low water absorption.
Polypropylene is abbreviated as PP, which is a thermoplastic resin made by polymerization of propylene. There are three configurations of isotactic, random and syndiotactic. Industrial products are mainly composed of isotactic. Polypropylene also includes copolymers of propylene and a small amount of ethylene. Usually a translucent colorless solid, odorless and non-toxic.
Difference
1. PP has better rigidity, strength and heat resistance than PE. PE is easily decomposed by photo-oxidation, thermal oxidation and ozone.
2. The density of PP is smaller than that of PE, and the density of PP is only 0.90~0.91g/cm
3. The density of PE is 0.91～0.96g/cm3. 3. In terms of temperature resistance, PP is also higher than PE. Generally, PP can withstand pasteurization temperature.
4. The transparency of PP is better than that of PE, but the sealing temperature and heat sealing strength of PE are better than that of PP.
Same point:
1. PE and PP are both milky white, translucent, waxy polymers without coloring.
2. They are all non-polar crystalline polymers with good compatibility.
3. Non-toxic, good chemical stability, easy to shape and process.
From an environmental point of view, because PP materials have more crystals (meaning fewer carbon chains). Therefore, PP materials are easier to degrade under natural conditions. PP material has a more efficient cost advantage. If you consider plant support nets, we can provide a variety of specifications and materials for you to choose from. Welcome to consult.
Thank you for your attention, please contact us for a quote.