The rubber industry is an important foundational industry closely related to the national economy and daily life. Below, I will systematically outline the core knowledge of the rubber industry, including classification, industry chain, market pattern, key technologies, and trends.
Any quesitons about rubber and plastic,please feel free contact:cathy@brightrubberplastic.com
1, Classification of Rubber
Rubber is mainly divided into two categories, which is the starting point for understanding the entire industry.
natural rubber
Source: It is extracted and processed from the lotion of rubber trees (mainly Brazilian clover).
Characteristics: Good comprehensive performance, high elasticity, low heat generation, but average oil and weather resistance. The yield is greatly affected by climate and geography.
Main producing countries: Thailand, Indonesia, Vietnam, China (mainly in Hainan and Yunnan).
synthetic rubber
Source: Made from petroleum and natural gas as raw materials through chemical synthesis methods.
Characteristics: Strong targeting, specific performance can be obtained by adjusting the formula (such as oil resistance, wear resistance, high and low temperature resistance).
Main varieties:
Universal rubber: styrene butadiene rubber, butadiene rubber, isoprene rubber (synthetic substitute for natural rubber). The largest amount is mainly used for tires.
Special rubber: used in harsh environments. For example:
Nitrile rubber: Good oil resistance, used for oil seals and fuel pipes.
Ethylene propylene rubber: weather resistant, ozone resistant, and aging resistant, used for automotive sealing strips and roof waterproofing membranes.
Silicone rubber: resistant to high and low temperatures (-60 ℃~250 ℃), used for medical, infant products, and seals.
Fluororubber: resistant to high temperatures and chemical corrosion, used for sealing in aerospace and high-end automobiles.
2, Overview of the Rubber Industry Chain
The rubber industry has a long industrial chain and close upstream and downstream connections.
Upstream: Raw material supply
Natural rubber: plantations, rubber farmers → raw material buyers → processing plants (producing standard rubber, tobacco film rubber, etc.).
Synthetic rubber: petroleum/natural gas → petrochemical enterprises (producing monomers such as butadiene and styrene) → synthetic rubber plants.
Midstream: Rubber product manufacturing
Core industry: Tire manufacturing, consuming approximately 70% of the world's rubber. Next are hoses, tapes, seals, shock absorbers, shoe materials, etc.
Key auxiliary materials: Rubber cannot be used alone and must undergo "blending" and "vulcanization".
Reinforcing agent: The most important ones are carbon black and white carbon black (silica), which can greatly improve the strength and wear resistance of rubber.
Vulcanizing agent: usually sulfur, which changes the linear structure of rubber molecules into a mesh structure, obtaining elasticity.
Antioxidants: delay rubber aging.
Processing aids: accelerators, plasticizers, etc.
Downstream: Application Fields
The largest market: the automotive industry (tires, various rubber components).
Other important fields: construction machinery, rail transportation, aerospace, medical and health care, building materials, daily consumer goods, power electronics, etc.
3, Global market pattern and characteristics
Supply and demand separation:
Production: Natural rubber is mainly produced in Southeast Asia; Synthetic rubber is mainly consumed in East Asia (China), North America, and Europe.
Consumption: China is the world's largest consumer and importer of rubber, accounting for nearly half of the global consumption and highly dependent on the international market.
The factors affecting price are complex:
Natural rubber: greatly affected by weather, pests and diseases, policies, trade flows, exchange rates (especially Thai baht), and Shanghai Futures Exchange futures prices in the main producing countries.
Synthetic rubber: closely related to crude oil prices and downstream (especially tire factories) operating rates.
High industry concentration:
In the tire industry, it is dominated by international giants such as Michelin, Bridgestone, and Goodyear, as well as leading Chinese companies such as Zhongce, Linglong, and Sailun.
Non tire components: The market is fragmented, but the technological barriers are high. High end fields such as automotive and aerospace seals are dominated by multinational companies such as Parker Hannifin, Trelleborg, and NOK.