Table of Contents
What is the density of ABS plastic?
1.0 – 1.05 g/cm3
Acrylonitrile Butadiene Styrene (ABS) is an ideal material wherever superlative surface quality, colorfastness and luster are required. ABS is a two phase polymer blend….3 Physical Properties.
| Tensile Strength | 40-50 | Mpa |
|---|---|---|
| Thermal Coefficient of expansion | 70 – 90 | x 10-6 |
| Max Cont Use Temp | 80 – 95 | oC |
| Density | 1.0 – 1.05 | g/cm3 |
What determines polymer solution density?
Determine the density for the polymer blend by adding the mass fraction densities together. This is done with the formula 0.70 x 55.51 (polypropylene) + 0.30 x 57.38 (polyethylene) for an answer of 56.07 pounds per cubic foot for the blend.
What is the specific gravity of ABS plastic?
ABS Resin Characteristics & Uses
| Material | ABS + All Alloys |
|---|---|
| Strength | Tensile Strength: 6030 PSI Yield |
| Specific Gravity | 1.04-1.07 |
| Shrinkage | 0.4 to 0.8% |
| Melting Point | 230° F |
What is polymer density?
The molar volume (Vm) of a polymer is defined as the volume occupied by the polymer molecules in units of volume per mole at a given temperature and pressure, and the density (ρ) is defined as the ratio of molar mass and molar volume: ρ = M / Vm.
What affects polymer density?
The more crystalline a polymer, the more regularly aligned its chains. Increasing the degree of crystallinity increases hardness and density.
What is the method of determining density?
Density is obtained by dividing mass by volume. . Mass can be measured with scales or balances, and is expressed in grams or kilograms. By convention, the volume of liquids and gases is often expressed in units of liters or milliliters, measured with glassware.
What are the methods of measuring density?
Different methods of Density Measurement
- Hydrostatic Pressure. This type of density measurement relies on a constant height of liquid and measures the pressure differences.
- Radiation.
- Vibration.
- Differential Pressure.
- Temperature Effects.
What is the ideal defect density?
The most common standard of “good” defect density is one defect per 1000 lines of code (or KLOC).
What are the 3 methods of determining volume to calculate density?
The densities of brass and aluminum will be calculated from mass and volume measurements. To illustrate the effects of precision on data, volumes will be determined by three different methods: geometrically (measuring lengths); water displacement; and pycnometry.
What are the four factors that affect density determination?
The size, mass, and arrangement of atoms affect the density of a substance.
What is acceptable defect density?
Defect Density = Total Defect/Size According to best practices, one defect per 1000 lines (LOC) is considered good.
What 2 factors affect density?
The density of an object or quantity of matter is its mass divided by its volume. This is usually measured under standard conditions for temperature and pressure: 0°C and 1 atmosphere of pressure.
What are the characteristics of ABS plastic?
This thermoplastic material has excellent chemical, stress and creep resistance. ABS offers a good balance of impact, heat, chemical and abrasion resistance, dimensional stability, tensile strength, surface hardness, rigidity and electrical characteristics. ABS plastic remains hard, rigid and tough even at low temperatures.
What is the melting point of ABS plastic?
ABS is amorphous and therefore has no true melting point. ABS is a terpolymer made by polymerizing styrene and acrylonitrile in the presence of polybutadiene. The proportions can vary from 15 to 35% acrylonitrile, 5 to 30% butadiene and 40 to 60% styrene.
What is the chemical composition of ABS?
ABS is a terpolymer made by polymerizing styrene and acrylonitrile in the presence of polybutadiene. The proportions can vary from 15 to 35% acrylonitrile, 5 to 30% butadiene and 40 to 60% styrene.
What are the monomers of ABS?
ABS is made up of three monomers: acrylonitrile, butadiene and styrene: Acrylonitrile: It is a synthetic monomer produced from propylene and ammonia. This component contributes to ABS chemical resistance & heat stability Butadiene: It is produced as a by-product of ethylene production from steam crackers.