先纠正一个认知错位：很多人以为丁苯橡胶（SBR）副牌和普通塑料副牌是一回事，都是“指标差点的正牌”。但做轮胎和橡胶杂件的都知道，SBR是合成橡胶，副牌的门道在门尼粘度和结合苯乙烯含量——门尼差五个单位，混炼胶的加工性就变一档；结合苯乙烯差两个百分点，扯断强度和耐磨就跟着变。今天把中石化齐鲁、中石油吉林、中石油兰州这三家国产SBR头部企业的副牌，横评一遍。
结论先说：SBR副牌能用，但门尼粘度和结合苯乙烯含量必须先测，测不准就进混炼车间，整锅胶都可能报废。
SBR是什么？国内产能格局
SBR是丁苯橡胶，丁二烯和苯乙烯共聚的合成橡胶，耐磨、耐热、耐老化、加工性能均衡，是产量大、用途广的通用合成橡胶，大量用于轮胎胎面和胎侧、橡胶管带、鞋材、橡胶杂件、改性沥青。乳聚SBR（ESBR）是主流品种。
国内SBR产能主要集中在中石化和中石油两大体系。中石化齐鲁石化是国内老牌合成橡胶基地，乳聚SBR年产能约25万吨以上，排在国内前列；中石油吉林石化约14万吨/年；中石油兰州石化约15万吨/年。此外燕山石化、扬子石化、浙江信汇等也是重要产能方。两大体系合计占了国内SBR产能的大头。
SBR副牌：门尼粘度和苯乙烯含量是两道闸门
SBR副牌，是原厂同一牌号体系里检验指标小幅偏离的批次。SBR这个料，偏差常出现在三项：门尼粘度波动、结合苯乙烯含量偏差、扯断强度和伸长率波动。
为什么盯这三项？门尼粘度是橡胶加工性的核心指标，门尼高了混炼吃力、流动性差，门尼低了胶料发软、压延出片不稳定。结合苯乙烯含量决定SBR的硬度和强度，含量高则耐磨耐抓地好、含量低则生热低柔韧好。这两项偏了，配方就得跟着调。
和回料的区别：SBR回料是废轮胎、鞋底、橡胶杂件破碎再造粒，已经老化过一次，性能波动极大；SBR副牌是原厂原生合成橡胶，只是个别指标小幅偏离。做轮胎胎面，用副牌是“门尼够不够加工”的问题，用回料是“敢不敢上胎面”的问题。
中石化齐鲁石化：乳聚SBR老牌基地
中石化齐鲁石化橡胶厂是国内老牌合成橡胶基地，乳聚SBR设计产能约25万吨以上，代表牌号如1502、1712等通用牌号，产品在轮胎和橡胶制品圈有几十年口碑。
副牌料的特点：央企体系批次管理规范，门尼和苯乙烯含量记录齐全；通用牌号副牌适合轮胎厂、橡胶制品厂掺混和一般制品；山东产能，华东客户运输距离适中。
适用场景：轮胎胎面和胎侧、橡胶管带、鞋材、橡胶杂件、改性沥青。
中石油吉林石化：东北SBR主力
中石油吉林石化是东北重要的合成橡胶基地，SBR年产能约14万吨，依托中石油乙烯和丁二烯资源，产品在东北、华北轮胎和橡胶圈有稳定客户。
副牌料的特点：央企体系检测规范，产品稳定性有保障；东北产能到华东运距远，适合批量大、不赶急单的轮胎和橡胶制品；通用牌号副牌性价比突出。
适用场景：轮胎、橡胶管带、鞋材、橡胶杂件、一般制品掺混。
中石油兰州石化：西北SBR基地
中石油兰州石化是西北重要的合成橡胶基地，SBR年产能约15万吨，依托中石油西北炼化资源，产品在西北、西南橡胶圈有稳定客户，近年也在向官能化SSBR方向布局。
副牌料的特点：央企体系批次管理规范；西北产能到华东运距远，交货周期要提前规划；通用乳聚SBR副牌适合对成本敏感、批量大的橡胶杂件和管带制品。
适用场景：橡胶管带、橡胶杂件、鞋材、一般轮胎制品、改性掺混。
SBR副牌避坑指南
第一，门尼粘度必须先测。SBR副牌门尼波动比正牌大，进混炼车间前先确认门尼区间，别拿低门尼副牌去打需要强度的胎面。
第二，结合苯乙烯含量必须核。含量偏差直接影响硬度和耐磨，配方要跟着调，别拿错含量的副牌直接上机。
第三，胎面和安全件别用副牌。轮胎胎面、有安全要求的橡胶件，副牌要谨慎，认证件走正牌。
第四，分清原生副牌和再生胶。市场上再生胶量大，原生SBR副牌是原厂合成橡胶，再生胶是废胶再造，认准大厂原厂原包。
科隆仓库现货｜国产SBR批次留样可溯
科隆在宁波仓库常备国产SBR副牌现货，主推品牌覆盖中石化齐鲁、中石油吉林、中石油兰州三家国内头部企业。主要牌号涵盖1502、1712等通用乳聚SBR常用型号，包装分大包装与小包装两种，按牌号分批备货。
仓库现货通常在2000-5000吨：小包副牌备货300-600吨，箱装副牌备货150-300吨，大包料/吨包料备货1500-4100吨。
供应保障走批次留样可溯：每批SBR副牌留样归档，门尼粘度、结合苯乙烯含量、扯断强度随货记录；小包副牌和箱装副牌方便胶厂小批量试混炼，大包料和吨包料适合轮胎和制品厂批量切料，来料出问题可按批次追溯。
选型口诀与案例
国产SBR副牌怎么选？记住四句话：门尼先测再上机，苯乙烯含量要核对，安全件别碰副牌，原生再生要分清。
金华一家做橡胶管带的制品厂，此前一直用齐鲁SBR正牌做胶料，每吨成本高。今年改用科隆供的中石油兰州SBR副牌通用牌号，先拿两吨小样测门尼和结合苯乙烯含量，都在配方接受范围内，批量切料后胶料加工性和扯断强度都达标，每吨原料成本降了近一千元。厂长说：做管带非安全件，副牌指标够，为什么要花正牌的钱？
First, correct a misconception: Many people think styrene-butadiene rubber (SBR) secondary brands and ordinary plastic secondary brands are the same, both "genuine brands with weaker specs." But anyone who makes tires and rubber miscellaneous parts knows that SBR is synthetic rubber. The key to sub-brands lies in Mooney viscosity and bind styrene content—if Mooney differs by five units, the processability of the compound rubber; If combined with styrene differs by two percentage points, the breaking strength and wear resistance also change. Today, I'll give a comprehensive review of the sub-brands of Sinopec Qilu, PetroChina Jilin, and PetroChina Lanzhou, three leading domestic SBR companies.
Conclusion First: SBR secondary brands can be used, but Mooney viscosity and bind styrene content must be tested first. If you can't measure them correctly, the compound goes to the mixing workshop, and the whole batch of rubber could be scrapped. What is
SBR? Domestic production capacity
SBR is styrene-butadiene rubber, synthetic rubber copolymerized with butadiene and styrene, which is wear-resistant, heat-resistant, aging-resistant, and has balanced processing performance. It is a general-purpose synthetic rubber with high output and wide applications, widely used in tire tread and sidewall, rubber pipes and belts, footwear materials, rubber miscellaneous parts, and modified asphalt. Emulsion SBR (ESBR) is the mainstream variety.
Domestic SBR capacity is mainly concentrated in Sinopec and PetroChina. Sinopec Qilu Petrochemical is a long-established synthetic rubber base in China, with an annual emulsion SBR capacity of over 250,000 tons, ranking among the top in China; PetroChina Jilin Petrochemical about 140,000 tons/year; PetroChina Lanzhou Petrochemical about 150,000 tons/year. Additionally, Yanshan Petrochemical, Yangtze Petrochemical, and Zhejiang Xinhui are also important capacity players. Together, these two systems account for the majority of domestic SBR capacity.
SBR sub-brand: Mooney viscosity and styrene content are the second
SBR gates , representing batches with slight deviations in inspection indicators within the same original factory grade system. SBR material often shows deviations in three categories: Mooney viscosity fluctuations, styrene content deviation, and fluctuations in breaking strength and elongation.
Why focus on these three? Mooney viscosity is the core indicator of rubber processing properties. High Mooney makes mixing difficult and flows poorly; low Mooney causes the compound to soften and unstable calendering. The styrene content determines SBR's hardness and strength. High content means better wear resistance and grip; lower content means low heat generation and good flexibility. If these two are off, the formula must be adjusted accordingly. Difference between
and recycled material: SBR recycled material is made by crushing and pelletizing waste tires, soles, and rubber miscellaneous parts, which have already aged once, causing significant performance fluctuations; SBR secondary brand is original virgin synthetic rubber, with only slight deviations in a few indicators. For tire tread, using secondary brands is a matter of "whether Mooney is sufficient for processing," while recycled materials are a matter of "whether you dare to apply tread."
Sinopec Qilu Petrochemical: Ruju SBR established base
Sinopec Qilu Petrochemical Rubber Factory is a long-established synthetic rubber base in China. Ruju SBR has a designed production capacity of over 250,000 tons, with representative grades such as 1502 and 1712 and other generic grades. The products have enjoyed decades of reputation in the tire and rubber products industry.
Characteristics of sub-brand materials: Standardized batch management within the central SOE system, complete records of moonny and styrene content; General sub-brands are suitable for tire factories and rubber product factories for blending and general products; Shandong production capacity, moderate transportation distance for customers in East China.
Applicable scenarios: tire tread and sidewall, rubber pipes and belts, shoe materials, rubber miscellaneous parts, modified asphalt.
PetroChina Jilin Petrochemical: Main SBR in Northeast China
PetroChina Jilin Petrochemical is an important synthetic rubber base in Northeast China, with an annual SBR capacity of about 140,000 tons. Relying on PetroChina's ethylene and butadiene resources, its products have stable customers in the tire and rubber circles of Northeast and North China. Features of
Sub-brand Materials: Standardized testing by central SOE systems, ensuring product stability; Northeast production capacity has long transportation distances to East China, suitable for large batches and tires and rubber products that do not require urgent orders; General grades with sub-brands offer outstanding cost-performance.
Applicable Scenarios: tires, rubber hoses and belts, footwear materials, rubber miscellaneous parts, general product blending.
PetroChina Lanzhou Petrochemical: Northwest SBR base
PetroChina Lanzhou Petrochemical is an important synthetic rubber base in Northwest China, with an annual SBR capacity of about 150,000 tons. Relying on PetroChina's northwest refining resources, its products have stable customers in the Northwest and Southwest rubber circles, and in recent years it has also been expanding towards functional SSBR.
Characteristics of sub-brand materials: standardized batch management within a central enterprise system; Northwest capacity is transported far to East China, so delivery cycles must be planned in advance; General emulsion SBR sub-brand is suitable for cost-sensitive and large-batch rubber miscellaneous parts and pipe and belt products.
Applicable scenarios: rubber pipes and belts, rubber miscellaneous parts, shoe materials, general tire products, modified blending.
SBR Secondary Plate Pitfall Guide
First, the Mooney viscosity must be measured first. SBR secondary plate Mooney fluctuates more than genuine ones. Before entering the mixing workshop, check the Mooney range; do not use low Mooney side plates to hit the tread that requires strength.
Second, be sure to check the styrene content. Content deviations directly affect hardness and wear resistance; adjust the formula accordingly and don't use the wrong secondary plate directly.
Third, do not use secondary plates for tread and safety parts. For tire tread surfaces and rubber parts with safety requirements, be cautious with secondary plates; certified parts should be genuine.
Fourth, distinguish between original secondary brands and recycled rubber. There is a large volume of reclaimed rubber on the market; the secondary brand of original SBR is original synthetic rubber, while the reclaimed rubber is recycled from waste rubber. Look for original original packaging from major manufacturers.
Cologne Warehouse Stock | Domestic SBR batch samples traceable
Cologne maintains domestic SBR secondary brand stock at the Ningbo warehouse, with main brands covering three leading domestic enterprises: Sinopec Qilu, PetroChina Jilin, and PetroChina Lanzhou. Main grades include commonly used general emulsion SBR models such as 1502 and 1712, with packaging in large and small packages, stocked in batches according to grade.
Warehouse stock is usually between 2000-5000 tons: small sub-brand stock is 300-600 tons, boxed sub-brand stock is 150-300 tons, and large package/ton is 1500-4100 tons.
Supply Guarantee Batch Traceability: Each batch SBR sub-brand is archived and recorded, with Mooney viscosity, combined styrene content, and breaking strength recorded with the cargo; Small sub-brand and boxed sub-brand are convenient for rubber factories to trial mixing in small batches, while large and ton sub-brands are suitable for batch cutting by tire and product factory. If issues arise with incoming materials, traceability can be done by batch.
Selection Mnemonics and Cases
How to Choose Domestic SBR Sub-brand? Remember these four points: test the styrene before machine installation, verify the styrene content, avoid safety parts from secondary brands, and distinguish between original and recycled parts.
Jinhua is a factory specializing in rubber pipe belts, which previously used genuine Qilu SBR for compounds, with high cost per ton. This year, they switched to using the general sub-brand grade of PetroChina Lanzhou SBR supplied by Cologne. They first tested Menni and bind styrene content with two tons of samples, both within the formula's acceptable range. After batch cutting, the compound material's processing and breaking strength met standards, reducing raw material costs by nearly 1,000 yuan per ton. The factory director said: For pipe belts with non-safety parts, the secondary brand quota is sufficient, so why spend money on genuine products?
