Natural Rubber high elongation, cold resistant, the elastic modulus and the shear modulus is low

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1. Description of Rubber:

Natural rubber is a kind of polyisoprene as the main component of natural high molecular compound, its composition in 91% ~ 94% is the rubber hydrocarbon(polyisoprene), the protein, fatty acid, carbohydrate, ash and other non rubber substance. Natural rubber is the most widely used general rubber..


2. Main features of Oil Seal:

1) high elasticity, according to the formula, the elastic can reach 80% of the maximum.

2) high elongation, the maximum can reach more than 1000%.

3) the elastic modulus and the shear modulus is low, than some rigid substances such as iron and steel and other low much.

4) cold resistant, the glass transition temperature of minus 72 degrees..


3. Rubber Images:

Natural Rubber high elongation, cold resistant,  the elastic modulus and the shear modulus is low

4. Rubber Application:

Rubber elasticity, good insulation, impermeability and plasticity characteristics of natural rubber, and through the mix after appropriate treatment also has oil resistance, acid and alkali resistance, heat resistance, cold resistance, pressure resistance, wear resistance and other properties, therefore, has the widespread use, mainly used for automobile, machinery, industrial etc. industry as a shock, sealing parts.

5. FAQ

We have organized several common questions for our clientsmay help you sincerely 

How about your company

A world class manufacturer & supplier of Rubber is one of the large scale professional investment casting production bases in China,consisting of both casting foundry forging and machining factory. Annually more than 8000 tons Precision casting and forging parts are exported to markets in Europe,America and Japan. OEM casting and forging service available according to customer’s requirement.

How to guarantee the quality of the products

We have established the international advanced quality management system every link from raw material to final product we have strict quality test; We resolutely put an end to unqualified products flowing into the market. At the same time, we will provide necessary follow-up service assurance.


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Q:What is rubber and plastic materials?
In brief, the most essential difference between plastics and rubber is plastic deformation when plastic deformation occurs, while rubber is an elastic deformation. In other words, it's not easy to restore the original state after plastic deformation, and rubber is relatively easy. Plastic elasticity is very small, usually less than 100%, while rubber can reach 1000% or more. Most of the plastic molding process is completed, the product process will be completed; and after the rubber forming process, but also need vulcanization process.
Q:How does rubber do tensile testing?
Rubber tensile testing machine for rubber, plastic, textile, plastic, film, fiber, nano materials, polymer materials, composite materials, packing tape, paper, wire and cable, optical fiber cable, safety belt, safety belt, leather belt, shoe, tape, polymer, spring steel, bearing steel, stainless steel and other high (the hardness of steel, castings, steel plate, steel), nonferrous metal, auto parts, alloy materials and other non-metallic materials and metal materials tensile, compression, bending, tear, 90 degrees, 180 degrees peel peeling, shear, adhesion, pull-out strength, elongation elongation test.
Q:Can the rubber material be injected into the mold for molding?
Yes, rubber injection machine, silicone is very appropriate.
Q:What chemicals are added to the wiper bar, please?
Auto wipers need good quality and durability. Now wiper manufacturers are grinding costs, so quality will drop a lot, and the average life is 4~6 months;
Q:How many kinds of hardness are indicated in rubber materials?
In mechanics, two very important indexes are generally measured by universal testing machines, and hardness is measured by a hardness tester. In general, universal testing machines and hardness testers are all materials testing machines. The hardness tester, according to the characteristics of different materials, need to use different hardness tester for determination. Among them, the most widely used are Rockwell hardness tester, Brinell hardness tester, shore rubber hardness tester, Vivtorinox hardness tester, and Brinell hardness tester.
Q:What material is the line on the rubber court floor? What's the practice?
Full plastic fixationAll the ground brushing. On the plastic floor can be bonded before laying the foundation for the:Humidity: according to the opinion of the adhesive manufacturer, the moisture content of the foundation (weight percentage) shall be less than 3%, and the air shall be circulated in case of weather or foreign moisture, and the surface moisture shall be wiped out in time.Surface hardness: a sharp chisel is used to cut the surface quickly without any traces or grooves.Surface density: the surface shall not be too rough and shall not have too many pores.Crack: must not have width greater than 3mm crack.Surface cleanliness: oil, wax, paint, paint and other residual substances must be removed.Temperature: not less than 15 degrees centigrade. In addition:Horizontal reference shall be maintained.There should be proper sealing at the settlement joint of the building.
Q:What material is good for yoga mats?
At present, the international market, yoga mats are mainly divided into four kinds of materials: rubber pad (natural rubber) - Royal, linen pad (NATURAL flax + natural rubber) - noble, TPE (special environmental protection material) - high-end professional.
Q:What are the materials for the optical fiber sheath?
Better elasticity should be TPU material.
Q:What materials are used in the rubber track in the stadium?
Plastic runway construction on asphalt or cement foundation, the basic approach and road construction is about the same. The basic surface smoothness requirement is higher, in order to guarantee the plastic surface thickness uniformity, the elasticity is even, the foundation quality request is as follows:1, slope: horizontal <1% (bend 8 per thousand, straight way 5 per thousand, semicircle area 5 per thousand), vertical <1 per thousand, high jump area <0.4%, surface should be flat and smooth, drainage smooth.2, flatness: flatness pass rate of 95% or more, 3 meters ruler error 3mm.3, positioning: for accurate construction and painting lines, the use of strong and distinct markers to mark the runway site of the four semicircle, tangent point and two centers.4. Drainage: drainage system must be discharged two hours after heavy rain. In the frozen area, a buffer layer of geotextile should be added between the asphalt and macadam. The foundation along the drain trench shall be specially treated against water.
Q:What kind of material does rubber leather paint belong to?
Rubber paint, also known as leather paint, hand paint, fluff paint. Spray on the surface of an object, a matte or semi matte, feel very delicate, smooth, elegant and solemn. Scratch resistance, weatherability, excellent abrasion resistance. In line with green printing, without any harm to human body. Good workability and good adhesion. Can mask the general defect or clip water injection

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