NBR Rubber Sheet

Crestmat is a leading rubber material and rubber product supplier in China. The factory has been devoted in special rubber compounding for more than 30 years. The products mainly include rubber materials like fluorosilicone (FVMQ), arylate rubber (ACM), Hydrogenated Nitrile (HNBR), fluoroelastomer (FKM) and rubber calendering products such as HNBR sheet, FKM sheet, fluorosilicone sheet and rubber extruded products such as fkm o ring cord, HNBR rubber cord, fkm profile and high quality ffkm oring. The products are widely used in aviation, automobile, petroleum, marine, semi-condutor and many other fields. The rubber compounding factory is well equiped with Japan-made banburies, two-roller mixers, reaction kettle, strainer; the rubber product factory is equiped with Rotocure machine, press machine, extruder. The lab is equiped with Rheometer, Hardness Testor, Elongation Testor, Rotary Viscosimeter, Biochemitry Incubator.

This is an interesting question. Though there is a significant difference in the way both are produced, and in the ideal application of each, one is not necessarily better than the other. Both are polymers, which are substances made up of large molecules composed of many repeated sub-units. Each display highly valued properties and are used in many industrial and household applications.

The first, most obvious, difference between natural rubber and nitrile rubber is source.
Natural rubber is made from the sap of trees, called Heveabrasiliensis, which grow on plantations in South America and South Asia. The sap, a sticky, milky liquid, is harvested through a process called tapping where incisions are made in the trees causing natural latex to trickle into containers. Because It is a natural product and ecologically friendly, it is the perfect material for environmentally-conscious consumers. Though it is an important raw material and used in many industries, natural rubber can be difficult to process.

Another difference is product consistency.
There is no variation in natural rubber. It is generally all harvested and processed the same way, which produces the same product universally. Natural rubber is generally more-supple than other rubber types and can be used in a variety of forms. It is ideal for use in wiper blades, machine skirting, and even as drum practice pads. It is also used to make tires, gloves, and rubber mats.

Natural Rubber Properties
Despite having highly valued properties, natural rubber demonstrates poor resistance to atmospheric oxygen, ozone, oils, and various hydrocarbon solvents. In addition, natural rubber products do not have the same high levels of chemical and temperature resistance as nitrile rubber. This is because synthetic rubbers, in general, are engineered to include certain properties, such as resistance to specific substances, whereas natural rubber is a product which has been derived from nature. In terms of industrial uses, natural rubber is more suited for light to medium grade applications that do not involve overly abrasive temperatures and chemical conditions. When you think of natural rubber, think rubber bands – no other product has elongation like natural rubber. Natural rubber is also used in wiper blades and machine skirting.

Nitrile Rubber is a Man-Made Polymer.
By way of contrast, nitrile rubber, also known as NBR or Buna-N, is a man-made polymer produced under controlled conditions. It was developed during World War II in response to a growing need for oil-resistant rubber that could serve as a more durable alternative to natural rubber. It is produced using petroleum-based materials, and is a synthetic rubber copolymer of acrylonitrile (ACN) and butadiene. This means that it is not a natural product and its production can have some detrimental effects to the environment. Despite this, the demand for nitrile rubber continues to grow.

Nitrile Pubber Properties
NBR has properties that make it an excellent solution for sealing applications. Unlike natural rubber, it has a superior level of resistance against synthetic and natural grease products and is highly recommended for use in areas where petroleum products are present. It can be used to provide long-lasting machinery components which might be exposed to fuel or lubricants. In commercial kitchens, it is common for cooking oil or food grease to spill or splatter. Nitrile rubber sheeting ensures that kitchen products will remain effective longer. Nitrile sheets can also be used in laboratories, where spills of caustic agents are likely. It can be found in disposable non-latex gloves, automotive transmission belts, hoses, O-rings, gaskets, oil seals, V belts, synthetic leather, printer's form rollers, and as cable jacketing; NBR latex can also be used in the preparation of adhesives and as a pigment binder.

What is the maintenance method of NBR rubber sheet? Rubber plate itself has a certain weight, has a good grip, can be directly attached to the ground, generally do not need glue fixed. The joints can be cut into 45 degrees of slope with wallpaper knife. No obvious gap can be guaranteed through alignment and joint stitching, which does not affect the beauty and normal use of insulation glue.

Insulation pad should avoid direct sunlight or sharp metal scratches, storage should avoid and heat source distance too close, to prevent worsening aging deterioration, so as to reduce the insulation performance.
In use, the ground should be flat, no sharp hard objects. And in the process of use found cracks, scratches, thickness reduction and other insufficient to ensure the insulation performance, should be replaced in time.

The insulating rubber pad should be kept dry and clean, and should be prevented from contacting with acid, alkali and various oils to avoid aging, cracking or stickiness after corrosion, thus reducing the insulation performance.

In the process of use, the ground should be flat, no sharp hard objects, rubber plate laying, rubber plate joint should be smooth, there will be no crimping phenomenon, to prevent operators from falling during equipment inspection or parking operations. Such as cracks, scratches, thinning thickness is not enough to ensure the insulation performance, should be replaced 5 mm NBR rubber sheet in time, avoid direct sunlight or metal sharp piercing, storage to avoid close to the heat source, so as not to occur aging and deterioration, reduce the insulation performance.

The insulating NBR rubber sheet should be kept dry and clean. Pay attention to preventing contact with acid, alkali and various oil substances, so as to avoid aging, cracking or corrosion after insulation or viscosity reduction. The 6 mm NBR rubber sheet should be cleaned with soap and dried with talcum powder at a temperature of not more than 65 ℃. If the insulating pad is coated with tar and paint, immediately wipe the contaminated area with an appropriate solvent. Avoid excessive use of solvent gasoline, paraffin and pure alcohol for cleaning, which can be used to clean tar and paint. Wet NBR rubber sheet should be dried accordingly, drying temperature should not exceed 65 ℃.