As we all know, hospital bedside is made of ABS or PP material. So what is the difference between these two materials?
PP material is also a common material in our life, and it is currently made into a variety of products for our use. PP material has good properties because of its special structure between molecules. Many people want to know the difference between PP material and ABS. Today, the editor will introduce in detail the “characteristics of PP materials and the differences between them and ABS”.
1. Characteristics of PP materials
1. Its molecular structure is similar to that of polyethylene, but the carbon atoms between the carbon chains have a methyl group (-CH3).
2. Usually translucent colorless solid, odorless and non-toxic.
3. Due to its regular structure and high degree of crystallization, its melting point is as high as 167°C. Its outstanding advantages are heat resistance and products that can be sterilized by steam.
4. The density is 0.90g/cm3, which is the lightest general-purpose plastic (10955, -50.00, -0.45%).
5. Corrosion resistance, tensile strength 30MPa, strength, rigidity and transparency are better than polyethylene.
2. The difference between PP materials and ABS
1. Different molding temperatures
Abs material molding temperature: 200-240°C drying conditions: 80-90°C for 2 hours, pp material molding temperature: 160-220°C, specific gravity: 0.9-0.91 g/cm3 molding shrinkage rate: 1.0-2.5%.
2. Different performance and uses
ABS material properties: good overall performance, high impact strength, good chemical stability, good electrical properties. It has good fusion property with 372 plexiglass, and it can be made into two-color plastic parts, which can be chrome-plated and spray-painted. It has the characteristics of high impact resistance, high heat resistance, flame retardant, reinforcement, and transparency.
PP material properties: crystalline material, low hygroscopicity, prone to melt fracture, and easy to decompose when in contact with hot metal for a long time. Good fluidity, but large shrinkage range and shrinkage value, prone to shrinkage dents and deformation.
Post time: Sep-08-2023