Foundation of Malaysian rubber
Natural rubber must first be collected from a rubber-producing tree, then processed with chemicals and heat to be used in production. In this process, the tree is cut down and its sap is poured into a container. One-third of the latex at this stage is rubber, which is held in a colloidal suspension, and the other third is water. To treat latex into rubber, latex is mixed with formic acid to coagulate the rubber, then washed and compressed into a block or sheet, and then smoked. Then, through machining, other changes are made in the rubber to make it more efficient, then it is mixed with chemicals to improve its properties. Eventually, it is extruded into desired shapes and then vulcanized, making it more durable and resilient. Vulcanization involves heating the rubber with some sulfur in a pressure cooker at about 320 degrees Fahrenheit, although it can be steamed, microwaved, or passed through a fluidized bed or molten metal salts to be boiled. Vulcanization binds polyisoprene molecular chains together to create physical and chemical resistance and to eliminate crude rubber adhesion. Although synthetic rubber was invented in the 1930s, natural rubber, or rubber, is still widely used, making up just under half of the market.
Applications of natural rubber
Standard Malaysian rubber is a revolutionary change in grading presentation of Malaysian rubber natural rubber in the struggle with synthetic rubber hence the Standard Malaysian rubber scheme has crucial to to play in the process of securing the status quo which , Malaysian natural rubber had been enjoying before the establishment of the synthetic industry. Standard Malaysian rubber (SMR) is fast becoming a household word both among Malaysian natural rubber (NR) producers and consumers. It was first introduced as the result of a long-felt need to improve the system of quality grading and presentation of Malaysian NR. Natural rubber is used in applications that require high resistance to abrasion and heat. Thanks to its strength and compressibility, natural rubber is used in engineering applications such as anti-vibration bases, actuator couplings, springs, bearings, rubber bands and adhesives. But most of them – 50% natural rubber – are used in high-performance tires for racing cars, buses and airplanes because of their strength and heat resistance.
SMR and Hoses
These compounds are also used in hoses, auto parts, floor mats and battery boxes. However, thanks to the adhesive nature of natural rubber, it is even found in rubber cement and soil stabilizers used on new roads. Even raw rubber is sometimes used as an adhesive and as part of a shoe sole. In addition, about 10% of latex harvested from trees is simply reduced to 60% rubber solution for the production of products such as latex gloves or as a cover. Formally launched by the minister for commerce and industry in 1965. The Standard Malaysian rubber Scheme has, over the years, establishment full buyers confidence in the technical grading system adopted and consumers have unreservedly accepted the improvement’s in the presentation of SMR. Four existing grades (SMR CV70, Standard Malaysian rubber LV, Standard Malaysian rubber WF and Standard Malaysian rubber 50) with little market demand have been deleted , whilst 2 new constant viscosity field grades have been incorporated as Standard Malaysian rubber 10CV and Standard Malaysian rubber 20CV, other grades have been incorporated as SMR 10 CV and Standard Malaysian rubber 20 CV other grades (Standard Malaysian rubber CV 60, SMR CV 50 , Standard Malaysian rubber L , Standard Malaysian rubber 5 ,Standard Malaysian rubber GP, Standard Malaysian rubber 10 , and Standard Malaysian rubber 20) have been retained because of their sustained or stable uptake consumer