Does SMR and industry related ?

Does SMR and industry related ?

 The first rubber material used by humans was natural rubber. Most of this material is obtained from the trees of “Hua brasilinsis” (native tree of Brazil). However, it can be obtained from about 50 types of trees, shrubs and other types of plants. Undoubtedly, the accidental or intentional injury of these trees, which caused their leachate to leak, aroused human curiosity and paved the way for his access to this substance, which is an obvious and unquestionable necessity in the field of industry today.

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The name of rubber was chosen by the South American Indians for this material: “Cao” means tears and “Achu” means tree. Most of this material is obtained from the trees of “Hua brasilinesis” (native tree of Brazil).  The production method of most SMR rubbers is such that first these rubbers are shredded by certain physical and chemical actions and then washed and dried. The pieces are then compressed into bundles weighing approximately 70 to 75 pounds and wrapped in a layer of polyethylene and packed in one-tonne wooden pallets. Types of natural rubber

Natural rubber

Mechanical properties

Constant viscosity rubber (SMRCV)

Hardness

SMRL

Tensile Strength

SMR WF

Increase in length to the point of rupture (Elongation)

SMR 10,20,50

Tear Resistance

SMR 5

Elastic Rebound

SMR GP

Damping and dynamic fatigue resistance

 

Resistance to wear and heat

 

Aging Resistance

 

Heat Resistance

 

Resistance to ozone and atmospheric agents

 

Flexibility at low temperatures

 

Compression Set

In recent years , a wide range of rubber parts (Mechanical Rubber Goods), strips and profiles, car rubber parts, insoles, hot water bags, hose-shaped parts, vibration-transmitting bases, shock absorbers, dust collectors, sponge strips around the door, which range They have a wide range of applications, are made of natural rubber or its alloy with SBR. Provides very high tensile strength, high elongation, excellent processability, good mixing with SBR and BR rubbers, resistance, very good against abrasion and tearing, provides excellent adhesion and viscosity in multi-component product manufacturing processes and Clamped (such as tires, conveyor belts and other fiber-reinforced parts) and metal parts are very important. Offering very good jumping and competitive with BR and very good resistance to dynamic tensions, has provided a wide range of applications for this rubber. The relatively cheap price of this rubber and its availability and offering very desirable physical properties, even when consuming a small amount of booster filters in the formulas, has made these rubbers as the most significant and widely used rubber used in the rubber industry.