During the rubber processing, there may many questions appear. Let’s talk about these questions this time.
Why we should plasticate rubber
The plastication is to cut the big molecular chain shorter with the function of machine, heat and chemical. This will reduce the elasticity briefly and increase the plasticity to meet the technology requirements. The ingredient will be easier to mix; easier to extrude. The moulding pattern will be more clear. The shape will be stable and the fibre will be easier to permeate into material.
What factors affect the plasticate in internal mixer
The internal mixer plasticate belongs to high temperature plasticate. The temperature is usually over 120℃, normally between 155℃-165℃. There will be strong oxidation in raw rubber with high temperature and mechanical function. And get perfect plasticity in short time. So the influence factors are as follow:
1.The technical property of equipment, like rotation rate
2.Technology conditions like time, temperature and capacity
Why the plasticate features are different with various rubber
The plastication has close relationship with rubber’s chemical constitution, molecular structure, molecular weight and molecular distribution. Because of the structure and property differences between natural rubber and synthetic rubber, the natural rubber plasticate is more easier than the synthetic rubber.
What’s the purpose of mixing
It’s to mix the raw rubber and other ingredients and make the ingredients disperse evenly in the raw rubber with a proportion. It aims to make the mechanical property index even to meet the requirements of formulation. It’s good for the later processes and guarantee the quality.
We talked 3 questions in the rubber processing. Have you ever encountered such problem? EverFlex is a profession manufacturer and exporter of all kinds of hoses and relevant products like PVC hose, rubber hose, hydraulic hose, crimping machine, conveyor belt and fittings. If you have some problem is processing or need our products, welcome to consult. We will offer you the best solution. Contact us now and get more information.