1. packing density and dry flow property of powder
Packing density refers to the apparent density under certain compression conditions, usually
10% ~ 30% higher than the apparent density, which is used to balance the properties of
powder. The dry material flowability of the resin can predict th...
Formula machinability that modified plastic formula has machinability, is to meet the
requirements of plastic molding products after modification. For the main manifestation of
the formula processability: The heat resistance of the additive is good, no evaporation loss
and decomposition deacti...
There are many kinds of wax products with different properties, but their properties and
applications have inherent similarities. As a kind of polymer materials, the definition of
“Wax”is more emphasis on appearance description. It is generally believed that wax-based
products should contain t...
Eva Wax (hot melt adhesive) has a wide range of applicability, such as PA (polypropylene) ,
PE (polyethylene) and other non-polar materials, but also can achieve a good bonding effect.
The adhesive layer has good low temperature resistance, water resistance and moisture
resistance.
Because EVA...
Pigments are generally powder, adding and mixing easy to fly, after being inhaled by the
human body will affect the health of operators, so now most manufacturers use color
masterbatch instead of color powder, today, Qingdao Sainuo polyethylene wax
manufacturers take you to understand the colo...
Calcium stearate is used as a heat stabilizer for PVC and as a lubricant and release agent for
a variety of plastics processing. When used as a PVC lubricant, it is generally considered to
be an internal lubricant. Calcium stearate is a stearate of calcium carbonate with strong
polarity, it ha...
Polyethylene wax is an indispensable additive in powder coatings, which plays an important
role in improving wear resistance, smoothness, friction resistance and degassing, here is a
brief introduction to polyethylene wax in powder coatings in the specific effect of it.
What’s powder coating?
P...
When you’re in it, you lose time before you know it. Wait for you to come out, but found
that time has passed a long time-this is the “Black hole time.”.
Why do some apps make us feel like time is being swallowed up? First, there is no sense of
boundaries, one after the other. Unless you’re tir...
PVC pipe can be divided into soft PVC and rigid PVC. Rigid PVC accounted for about 2/3
of the market, soft PVC accounted for about 1/3 of the market. Soft PVC pipes are
commonly used for floor, ceiling and leather surfaces, But because soft PVC contains
plasticizers (which is also the differe...
1. Higher thermal stability
Polyethylene wax needs to have good thermal stability. If its gasification composition is
decomposed, it will have bad effect on color masterbatch and products, Some burning point
materials, such as paraffin wax after thermogravimetric test at 200 °C, paraffin wax wi...
Hard PVC product stabilizer from lead salt into calcium zinc and other environmental
protection stabilizer, the color problem is also a more common, more diverse, relatively
difficult to solve the problem. It takes the following forms:
1. The change of product color resulted from the replacemen...
Injection molding is one of the most widely used methods in plastic processing. This method
applies to all Thermoplastic and parts of the thermosetting polymer, and the number of
finished products is much larger than other conventional metal forming methods. Because
the injection molding proce...
1. Inhibit material degradation
PVC has a large friction heat generation characteristics of materials, materials in the
processing of local overheating and degradation and lead to degradation of materials as
a whole.
2. Modulating resin plasticizing
In plastic thermoplastic processing, the heat...
Color masterbatch can be used for color matching of polyvinyl chloride, polyethylene,
polypropylene, polystyrene and ABS plastics. Its main components are pigments, resins,
dispersants, volume pigments, fluorescent whitening agents, antioxidants, anti-ultraviolet
agents, anti-static agents, to...
Today Qingdao Sainuo pe wax manufacturers continues to take you to understand the last
part process of PVC pipe abnormal phenomenon causes and solutions.
7. PVC pipe brittle
Cause of occurrence:
(1)Not Enough degree of plasticization;
(2)The screw speed of PVC pipe extruder is too fast;
(3)PVC pi...