"Low-key luxury" can not be more appropriate to describe the HDPE【[BUTYL RUBBER REACTIVE BONDING LAYER FOR PRE-PAVING REACTIVE-BONDING WATERPROOFING COILED MATERIAL] of BJDF Waterproof Material Technology Group. After more than ten years of technological accumulation, it has broken foreign monopolies, won the second prize of the National Science and Technology Progress Award, and successively obtained invention patent authorizations from Australia, the United States, Singapore, and Europe. Multiple sets of pre-laid anti-adhesive application systems have built BJDF's excellent HDPE product base, with an average growth rate of 99.67% in the past three years, which confirms its development path of "accumulation and thinning" growth.
In 2007, BJDF and the Advanced Elastomer Materials Research Center of Beijing University of Chemical Technology established a polymer material waterproof material research and development center. In 2008, the research and development of the production technology of "HDPE self-adhesive membrane waterproofing membrane" was officially started.
Matching R&D technology is independent production capacity. In 2011, BJDF built the world's first large-width, multi-material, multi-layer polymer waterproofing membrane continuous composite automatic production line, which has broken the foreign technology monopoly on polymer waterproofing membranes.
BJDF high-density polyethylene (HDPE) self-adhesive film waterproofing membrane, with "one fortification, first-level waterproofing" as the core point, using ExxonMobil, BASF and other well-known raw materials at home and abroad, with special high-density polyethylene film The main waterproof layer is provided with a self-adhesive layer, an anti-environmental change protection layer and an isolation layer, and a self-adhesive lap side is reserved on the long side of the coil. Its self-adhesive layer and anti-environmental change protective layer can be combined with concrete without gaps to prevent hidden dangers of water channeling between layers, and can effectively improve the reliability of the waterproof system. It is suitable for waterproofing of various underground caverns, tunnels, subways, municipal constructions, etc. Impermeable engineering.
In 2014, it was awarded the Strategic Innovative Product Project of the National Key New Product Plan of the Ministry of Science and Technology of China. Leading technology, excellent product performance, construction technology, and supporting service system have laid a solid foundation for HDPE to stand on the stage of the National Science and Technology Progress Award.
Technical strength: Ten years of polishing, won the National Science and Technology Progress Award
In 2019, BJDF competed for the highest award in the field of science and technology, broke through numerous barriers, stood out from more than 1,600 submitted projects, and finally won the second prize of the "National Science and Technology Progress Award".
From the official launch to the market to the second prize of the “National Science and Technology Progress Award”, BJDF’s HDPE has gone through ten years. In terms of products, six mainstream product systems and complete auxiliary materials systems have been formed; mainstream products are targeted at different Use scenarios, develop seven pre-laying anti-adhesive application systems, such as HDPE pre-laying anti-adhesive subway system, underground integrated pipe gallery system, industrial and civil construction underground system, cave system, nuclear power system, planting system and mountain tunnel system, and establish and Continuously improve the standardized construction system of HDPE pre-laid anti-adhesive waterproofing system.
In terms of production capacity, BJDF has established and put into production a number of HDPE production R&D and production bases, with advanced design, manufacturing precision, high-level automation, complete functions, and environmentally friendly production lines, forming a complete set of technology and industry for material research and development, manufacturing and engineering applications. It provides a guarantee for the use function and construction safety of underground space engineering.
In terms of patented technology, BJDF's HDPE has achieved a number of innovations, and has obtained more than 20 authorized patents, including more than 10 invention patents. In terms of overseas patent layout, it has applied for HDPE overseas patents since 2015, and has successively obtained Australian knowledge Invention patents granted by the Intellectual Property Office, the United States Patent and Trademark Office, the Singapore Intellectual Property Office, and the European Patent Office.
Outstanding performance: the market broke out, with an average growth rate of 99.67% in the past three years
The accumulation of product technology, application systems, and construction techniques has prepared the prerequisites for the HDPE market to break out. In recent years, the downstream demand for polymer products has been strong, coupled with policy promotion, BJDF's HDPE "fortification together, first-class waterproofing" concept quickly ignited the market. In 2018 alone, the individual growth rate of HDPE products exceeded 93%, and the pace of rapid growth has been started since then.
HDPE products have been used in multiple projects in underground space such as subways, highways (railway) tunnels, comprehensive pipe corridors, underground buildings, etc., and have participated in Beijing Line 15, Jiangxi Nanchang Honggu Tunnel, and Beijing Expo Park. Key projects such as the pipe gallery, the comprehensive pipe gallery along the Beijing Daxing International Airport expressway, and the Liupanshui underground comprehensive pipe gallery have also solved the problem of waterproofing in the shield tunnels of the South-to-North Water Transfer Project. They have also been applied and recognized in projects in the United States, Singapore, Israel and other countries. The annual single overseas shipment volume exceeds one million square meters.