Many customers when choosing material films to produce plastic packaging will wonder about PE film and PP film – which is better. But it’s not about being better – the point is – what is your product? What are you wanting to do? Both of these plastics are considered superior for packaging production.
Let’s compare some of the properties of each.
Mechanical Properties:
The density of polypropylene (PP) is between 0.895 and 0.92 g.cm. The density of polyethylene can vary from a low of 0.857 g/cm3 and to a maximum of 0.0975 gm/cm3. As you can see, PP has the lowest density. Polyethylene (PE) is further broken down into weights or densities which is done so the plastic can serve a more specific purpose. This is done during manufacturing.
The categories of Polyethylene are as follows:
Ultra-high-molecular-weight polyethylene (UHMWPE) is tough and resistant to chemicals. It is used to manufacture moving machine parts, bearings, gears, artificial joints, and some bulletproof vests.
High-density polyethylene (HDPE), recyclable plastic no. 2, is commonly used as milk jugs, liquid laundry detergent bottles, outdoor furniture, margarine tubs, portable gasoline cans, drinking water distribution systems, water drainage pipes, and grocery bags.
Medium-density polyethylene (MDPE) is used for packaging film, sacks and gas pipes, and fittings.
Low-density polyethylene (LDPE) is flexible and is used in the manufacture of squeeze bottles, milk jug caps, retail store bags, and linear low-density polyethylene (LLDPE) as a stretch wrap in transporting and handling boxes of durable goods, and as the common household food covering.
Polypropylene which is normally tough and flexible can have its density altered with the addition of fillers.
Chemical Properties:
PP is resistant to fats and almost all organic solvents when it is at room temperature. It can withstand non-oxidizing acids and bases in containers made from polypropylene. Contrast this to polyethylene which is more chemically resistant.
Polyethylene consists of non-polar, saturated, high molecular weight hydrocarbons. Therefore, its chemical behavior is similar to wax or paraffin. The individual macromolecules are not covalently linked. Overall polyethylene is partially crystalline. Higher crystallinity increases density and mechanical and chemical stability.
Optical Properties:
PP can be made translucent when uncolored but it’s not as transparent as acrylic or other plastic. Often colored pigments are added.
PE on the other hand can clear, milky-opaque, or opaque. The color is dependent on the thermal history and film thickness.
Uses of Polypropylene and Polyethylene:
Every day we have contact with PP or PE. Polypropylene is used to make bottles, hinges, packaging materials, parts for automobiles, clear bags, ropes, rugs, roofing membranes, geotextiles, erosion control mats and so much more.
Polyethylene is vastly used in packaging (plastic bags, plastic films), geomembranes, and plastic sheeting to protect the environment for construction projects.
Summary of Properties:
Material
Hardness
Stiffness
UV Resistance
Chemical Resistance
Toughness
Impact Resistance
Temperature Resistant
Price
PP
High
High
Good
Excellent
Excellent
Good
Higher
Higher
PE
Medium
Medium
Fair
Excellent
Excellent
Fair
Lower
Lower
Both Polypropylene and Polyethylene play a huge role in the world as we know it today.
Why is Amiba company always the first choice?
More than 30 years of experience in the plastic and complex film packaging industry
Provide products with high quality
Large production capacity
Cost savings
Large warehouse system, fast delivery
Diverse payment policy
Being a close partner of many large companies and large enterprises
Staff dedicated to the job
The production environment is safe for humans and the environment
Amiba company’s products are widely used by ensuring quality management, environmental protection, and integrated ISO standards:
– It has been assessed and certified to meet the requirements of Hazard Analysis and Critical Control Point (HACCP) Codex Alimentarius
– It has been assessed and certified to meet the requirements of Food Safety System Certification (FSSC) 22000
– It has been assessed and certified to meet the requirements of ISO 22000: 2018
– It has been assessed and certified to meet the requirements of ISO 9001: 2015
If you need to learn more about PP film and PE film, or need advice regarding placing an order or getting a price quotation, please call now +84 966 290 555 for the best support.
CONTACT US
Address: Lot 8, Street Number 16, Viet Nam-Singapore II-A Industrial Park, Tan Uyen Town, Binh Duong Province, Viet Nam.
Office Tower: 25 Ngo Quyen Street, Ward 10, District 5, Ho Chi Minh City
Tel: +84 966 290 555
Email: info@amibapack.com
Website: www.amibapack.com
Want more information on what is pe film? Click the link below to contact us.