Pioneering BIPB Innovation: The Story of Guangxi Donglan’s revolutionary product.

Introducing Guangxi Donglan Co., Ltd

Established in 2021, this dynamic company quickly emerged as a trailblazer in China’s advanced chemical materials sector. With its base in Qinbei District’s Huangma Fine Chemical Industrial Park, the firm’s team is a blend of domestic and international fine chemical expertise. Donglan’s commitment to research and development in high-end chemical materials sets it apart. Its vision to lead in specialty polymer materials is backed by cutting-edge technology and an expert team. In 2023, Donglan commenced the production of 5,000 tons annually of an eco-friendly cross-linking agent BIPB, known as “1,3-bis(tert-butylperoxyisopropyl)benzene,” a first of its kind in terms of purity and structure in China.

The cross-linking mechanism and advantages of BIPB

The company’s cross-linking technology with peroxides offers distinctive advantages. The process begins with peroxides evenly splitting into radical oxides, followed by these radicals snatching hydrogen atoms from polymer chains, thus forming macromolecular radicals. The final step involves these radicals combining to form a cross-linking bond.

B13, Donglan’s proprietary product, stands out for its high purity level owing to its exclusive meta-structure, offering stability along with a shorter half-life compared to traditional mixed-position BIPB. Additional advantages of B13 include higher storage temperature limits, efficient structural initiation, and stronger cross-linking strength. B13 facilitates simple and flexible cross-linking formulations, enabling co-vulcanization of saturated and unsaturated elastomers and thermoplastic plastics. Products manufactured using B13 formulas exhibit markedly improved hardness and strength over traditional formulas. B13 can also be used in conjunction with sulfur, converting high-sulfur polymer systems to medium-sulfur systems, thereby enhancing the tensile strength, elongation, compression set, and aging properties of the high-sulfur systems.

Product Line and Innovations:

• BIPB B13: An independently produced product by Guangxi Donglan, B13 is a pure meta-structured 1,3-bis(tert-butylperoxyisopropyl)benzene with a purity exceeding 98%. It is characterized by low odor and high active oxygen content and outperforms domestic competitors in cross-linking efficiency and density.
• Odorless B13: The company is set to launch a new generation of low-odour B13 products this year, addressing issues like 2-P-2-P excess and odor emission efficiency. This product will feature an even lower bag-opening odor and reduced odor during liquid formation in ovens.
• B13S: A pioneering ultra-high purity B13S in China, completely odorless with a purity exceeding 99.5%, displaying a singular peak distribution in gas chromatography. It’s designed to thoroughly remove all resolved issues like 2-P-2-P and acetophenone excess in shoe material testing.
• Customized Products: Catering to customer needs, Donglan has introduced B13-40GE/SR, CC/SR (anti-scorch), B13-40BC (non-anti-scorch), and BIPB B13-40GR (non-anti-scorch) formulations.
• Upcoming Development: Heat Air Vulcanizable B13 is currently under development. It addresses the challenge of peroxides interacting with oxygen in widely used hot air vulcanization processes, often resulting in sticky surfaces on products. Overcoming this challenge would substantially expand the market for peroxides, particularly PIPB. Donglan is investing resources and collaborating with partner companies to develop this product, aiming to offer an alternative to high-priced foreign products bound by strict customer restrictions and confidentiality agreements.

Guangxi Donglan New Material Co., Ltd. is not only revolutionizing the fine chemical industry with its innovative products but also setting new benchmarks in environmental sustainability and material performance. As the company continues to expand its product range and refine its technologies, it firmly establishes itself as a beacon of innovation and quality in the global fine chemicals market.