Polypropylene Extrusion Profiles

Polypropylene extrusion profiles specification

Material : polypropylene

Color : Origin

Height : 10mm

Width : 180mm

Thickness : 1.5mm

Weight : 0.8kg/meter

Name: Polypropylene (PP) Proportion: 0.9-0.91 g/cm3

Molding shrinkage rate: 1.0-2.5%  Molding temperature: 160-220℃.

Composition structure

PP is a crystalline polymer. Among the commonly used plastics, PP is the lightest, with a density of only 0.91g/cm3(Smaller than water). 

Among the general-purpose plastics, PP has the best heat resistance. Its heat distortion temperature is 80-100°C and can be boiled in boiling water. PP has good stress cracking resistance and high bending fatigue life.

The comprehensive performance of PP is better than that of PE material. PP products have light weight, good toughness and good chemical resistance. Disadvantages of PP: low dimensional accuracy, insufficient rigidity, poor weather resistance, easy to produce “copper damage”, it has post-shrinkage phenomenon, after demolding, it is easy to age, become brittle, and easy to deform. In daily life, the commonly used fresh-keeping box is made of PP material.

characteristic

1.Crystalline material, low moisture absorption, easy to melt fracture, and easy to decompose in long-term contact with hot metal. 

2. Good fluidity, but the shrinkage range and shrinkage value are large, and shrinkage holes, dents, and deformation are easy to occur.  

3. The cooling rate is fast, the pouring system and the cooling system should slowly dissipate heat, and pay attention to controlling the molding temperature. The material temperature is easy to be oriented at low temperature and high pressure. When the mold temperature is lower than 50 degrees, the plastic part is not smooth, which is easy to produce poor welding, flow marks, Warping and deformation are prone to occur above 90 degrees.

4. The plastic wall thickness must be uniform to avoid lack of glue and sharp corners to prevent stress concentration.

company advantage 

1. We have our own PVC granulation workshop to produce PVC raw materials, the quality is easy to control and stable, and there will be no quality problems caused by instability of raw materials.

2. We have a separate mold workshop. The mold masters have many years of experience in mold opening and testing. The mold opening cycle can be within the delivery time. We can make the sample appearance flawless and the size is accurate within the tolerance.

3. Our production workshop has forty machines, continuous production without stopping for 24 hours, which can meet any large-volume orders without delay to the delivery time.

4. The production staff in our workshop have rich experience. At the same time, the quality department also checks the dimensions online in real time to ensure that the mass production products will not have too much error.

5. We also have guarantee for after-sales service. If the product has poor size and affects the assembly and use, we will process the return or replenishment request according to the customer’s requirements.

polypropylene extrusion profiles picture:

Tooling/Mould development time

We can according your drawing to make new tooling/mould for it,usually it takes 15 days,

and we will sent sample to you for checking,after your confirm the sample,we can start

process the order.

we can customize cartons, cardboard, wooden cases, pallets and label paper according to customer packaging requirements.

Trade Term:EXW/FOB/FCA.