Q:How to test the abrasion resistance of rubber?

As long as the amount of carbon black is added, the wear resistance will be increased. Have the Akron abrasion resistance test (the rubber disc shape small rubber wheels on the wheel rotating friction, turn a lap after the contrast test before and after the rubber wheel quality, poor quality of smaller, better resistance).

Q:Rubber products on tiles, why tiles yellow?

Rubber products generally contain operating oil, the role is to make rubber easier to process and soft. But the oil runs easily to the surface of the rubber, so it makes the tiles yellow.

Q:Will rubber products fade?

Rubber products will fade, is a rubber aging process, mainly due to external factors, temperature changes, the use of time, light, chemicals, external force and so on.

Q:How does rubber mobile phone cover change yellow?

In physical properties, rubber has swelling, rheological properties and other changes. Tensile strength, elongation at break, impact strength, flexural strength, compression ratio and elasticity decrease.

Q:Is polyurethane and polyurethane rubber one thing?

Plastics, such as Taiwan and Hongkong, are commonly referred to as plastics, so there is little point in distinguishing between plastics and rubber. From a theoretical point of view, the distinction between plastic and rubber is generally based on whether the glass transition temperature (Tg) of the material is above normal or below normal. Polymers that are generally less than Tg at normal temperature are called plastics (e.g., polyethylene, Tg, -78 degrees), while polymers with Tg temperatures higher than normal are called rubber.

Q:Are natural latex rubber products?

In the fresh latex without any substance, the rubber hydrocarbon accounts for only 20%-40% of the total amount, and the remainder is a small amount of non rubber components and water.

Q:Rubber rolling process for making rubber products

Calendering equipment: calender, calender, by roller, frame and bearings, pitch device, roller deflection compensation device, as well asAuxiliary pipe device, motor drive mechanism and thickness detection device and other components.

Q:What is the role of softening plasticizers in rubber? How are they classified?

A rubber plasticizer is a reagent. Rubber plasticizer refers to add certain substances in rubber, can make the force rubber molecules is reduced, thereby reducing the glass transition temperature of the rubber, the rubber plasticity and fluidity, easy calendering and extrusion molding operation, but also can improve the mechanical properties of the vulcanizate of some physical machines, such as the decrease of hardness and elastic constant tensile stress, with high and low heat, improve the cold tolerance.

Q:How do ordinary NBR and EPDM materials differ?

Difference: EPDM density is lower than NBR, the appearance of EPDM is transparent or white, and NBR is yellow or white yellow.

Q:What advantage does ethylene propylene rubber with three yuan compare to two yuan ethylene propylene rubber?

Propylene rubber can be divided into two yuan ethylene propylene, three yuan ethylene propylene, modified ethylene propylene and thermoplastic ethylene propylene. Ethylene propylene rubber in olefin copolymerization of ethylene and propylene as binary ethylene propylene rubber; prepared three EPDM with ethylene, propylene and a small amount of non conjugated diene monomer copolymerization. The molecular chain of ethylene propylene rubber, ethylene and propylene monomer showed irregular arrangement, lost the regularity of polyethylene or polypropylene structure, thus becoming the elastomer, because three EPDM diene in the side chain, so the three rubber can be used not only sulfur curing also maintained, various characteristics of two yuan rubber.