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July 31, 2019

Factors affecting the weather resistance of PVC plastic windows and measures to prevent aging

Polyvinyl chloride (PVC) plastic window has many advantages and characteristics, it is more resistant to corrosion than wooden windows and steel windows; it has better sealing,...

July 31, 2019

Calcium carbonate "alkalinity" can affect the brittleness and yellowing of PVC. What is the reason?

Calcium carbonate is widely used as an important filler in PVC pipe processing and production. However, many manufacturers produce PVC with different degrees of yellowi...

July 26, 2019

The role of the three functional zones of the PVC extruder

The melting temperature and degradation temperature of PVC are relatively close, and good plasticization is required to prevent degradation of the melt. Therefore, generally according to the work function, wit...

July 23, 2019

Explanation of the "plasticity" of the production process of PVC products

1. The effect of plasticization on product performance:

The performance of PVC products is closely related to the degree of plasticization. The plasticization degree is not good, the products are...

July 17, 2019

The secret of PVC toughening agent is here

There are many factors that determine the impact resistance of PVC products, including the molecular weight of PVC, the surface condition of the material, the thickness of the material, the temperature of use, the type and st...

July 16, 2019

Research of transparent PVC compound/granule/pellet production and formulation 

1 Introduction

The large-scale production of transparent compound/granule/pellet began in the early 1990s, and the production of transparent compound/granule/pellet in China began in the la...

July 12, 2019

Basic specification for twin screw operation

1, driving operation

1.1 Preheating and heating: Put the main power switch and each section of the electric heater power switch on, and set the parameters for each heating zone (about 120 degrees) according to the process to...

July 5, 2019

What are the main reasons for the appearance of graying and blackening of PVC pipes?

The PVC pipe formulation is mainly composed of PVC resin and additives. Among them, the auxiliary agents are further divided into: heat stabilizers, lubricants, processing modifiers, im...

July 3, 2019

Research of Calcium Carbonate in PVC-U Pipe application.

Compared with traditional metal pipe, cement pipe and glass fiber reinforced plastic pipe, it has light weight, corrosion resistance, small water flow resistance, good mechanical strength, environmental protectio...

July 1, 2019

Six basic principles of plastic extrusion processing (feeding, conveying, compressing, melting, mixing, exhausting)

After the plastic is added to the extruder barrel by the hopper, the thread is forced to push the direction of the head with the rotation of the screw. Du...

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The role of the three functional zones of the PVC extruder

March 18, 2019

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