Q:How can rubber products prevent fading?

Light and white rubber products are prone to yellowing in the course of use and storage, thus affecting appearance and quality, resulting in various economic disputes and irreversible losses.

Q:Is mixed silicone rubber dangerous?

Mixed silicone rubber silicone rubber is the synthesis of silicone rubber crosslinking agent + + + + auxiliary catalyst filler in the double roller mixer or a sealed kneading machine.

Q:What about the Poisson's ratio and modulus of elasticity of three yuan ethylene propylene rubber (EPDM)?

Three yuan ethylene propylene rubber is ethylene, propylene and non conjugated diene three yuan copolymer, began commercial production in 1963. The consumption of the whole world is 800 thousand tons every year. The most important feature of EPDM is its superior oxidation resistance, ozone resistance and corrosion resistance. Because three yuan ethylene propylene rubber belongs to polyolefin family, it has excellent curing property. Of all rubbers, EPDM has the lowest specific gravity. It absorbs large amounts of fillers and oils and has little effect on properties. Therefore, rubber compounds with low cost can be made.

Q:What adhesive does rubber and wood have better glue?

Glue is the intermediate between two kinds of materials. It is a kind of fine chemical, which is mainly made of sticky material, physical form, hardening method and classified material. There is a common instant glue (502 common ethyl cyanoacrylate adhesive is a powerful instant), epoxy resin adhesive, anaerobic glue, UV glue (UV curing), hot melt adhesive, pressure-sensitive adhesive, latex etc..

Q:Explain why butyl rubber is more resistant to oxidation and aging than other elastomers, such as natural rubber

The macromolecular structure unit of natural rubber is isoprene, and the macromolecular chain is mainly composed of CIS -1, 4 polyisoprene. NR is the mechanical and processability comprehensive properties of all rubbers

Q:How to distinguish between good and bad silicone rubber gasket?

Hardness and elongation stress reflect the rigid (stiffness) index of rubber material, and they are the necessary force for silica gel products to produce certain deformation. It is also a way to distinguish the quality of silica gel products.

Q:What kind of materials should be used for rubber products to keep the brightness of the mirror for a long time?

It is important to use recycled material as a high light material. If the selected material is not available, then it is not effective. It must be pure, only ABS.PMMA, or PC/ABS. There is material, it is best not to contain white material, mottled with a little transparent, is the best.

Q:What are the hazards of rubber accelerators?

I have been engaged in the rubber industry for many years. I personally think that the accelerator has no harm to people. Wearing gloves, masks and protective measures during operation will not be harmful.

Q:Rubber and metal have to be sealed before they are too strong

The percentage difference between the first compression compression = original section diameter minus the trench size divided by the original O ring diameter O-ring compression is mainly depends on the material hardness and O-ring, O-ring if the hardness is 70 degrees, then the O-ring compression is equal to 20%. Of course, the lower the hardness of the O-ring, O-ring compression is greater, mainly used for low pressure places. Then the O-ring hardness increases the amount of compression of the O-ring is smaller, mainly used for high pressure, pressure resistance, resistance of small environment. And so on, the amount of compression can be any hardness O-ring you need.

Q:How to distinguish between silicone hose and rubber tube by appearance?

Smell, silicone no flavor, rubber flavor, silicone general flexibility better, rubber mechanical better