Polyurethane foaming agent green instead of multi-point flowering

Time after time information preparation, on-site testing, product testing, Beijing Hengju Polyurethane Co., Ltd. General Manager Yang Xihong busy nearly a year. He breathed a little relief after the dust settled on the tender results. In Beijing in April, the spring is full of
chinese
. After several interviews, the reporter finally interviewed Yang Xihong, general manager of Beijing Hengju Polyurethane Co., Ltd. The company recently bid Zhengzhou Yutong Bus Co., Ltd. high-end passenger car spray polyurethane foam project. "Standing out from a number of well-known polyurethane companies, it shows that the application of fluorine-free chemical foaming agent production of polyurethane, cost, environmental protection, flame retardant, insulation and other indicators have been highly recognized by customers." When it comes to the application of chemical foaming agents, Yang Xihong is full of confidence.
CFA8, a new chemical foaming agent free of chlorofluoroest, has been widely concerned by the industry and won the first prize for technological invention in Shandong Province in March this year. However, the key to technology is in the application. This point, holding the CFA8 patent use rights of the new material technology Co. , Ltd. is very clear. In the last more than a year, the company and a number of enterprises, including Henju polyurethane company, in a number of areas of polyurethane hard foam material industrialization applications have made a breakthrough, cost, environmental protection, performance and other indicators compared to the traditional foaming agent system, the comprehensive advantages are obvious.
"We are currently working with Tonic on the spraying of polyurethane foam for cars. This time Yutong company for high-end passenger car production line, put forward VOCs below 100ppm, oxygen index to reach 26 to 28 and other more stringent requirements, so that many applications of traditional physical foaming agents and full-water foaming system of the enterprise industry is not deterred. We have innovatively developed a dual A combination of CFA8 and water polyether system, the indicators have been recognized by Yutong, the price is also very competitive, and ultimately successfully won the bid. This shows that the dual A system has a strong market competitiveness. Yang Xihong said.
production of polyurethane foams is usually mainly foamed with HCFC-containing physical foaming agents, the most widely used of which is HCFC-141b. However, such substances have a significant impact on the ozone layer, with the signing of the Montreal Protocol, China has made it clear that it will freeze 35 per cent of HCFC-141b production capacity by 2020 and the polyurethane industry will be completely banned by 2025.
this background, many polyurethane manufacturers have turned to new physical foaming agents and full-water foaming systems, but the application is not ideal. "New physical foaming agents are expensive, and they are greenhouse gases. With the gradual increase of domestic environmental protection management, these physical foaming agents are bound to be strictly controlled. And whether it is the application of new physical foaming agent, or environmentally friendly all-water foaming system, in the application of spraying often there are foam cracking, poor dimensional stability and other issues. Yang Xihong told reporters.
in order to give full play to environmental performance, while ensuring performance and cost advantages, Tiantian and Hengrou company on the CFA8 foaming process and mechanism of in-depth research, the development of CFA8 and water combination of the dual A combination. Yang Xihong said that CFA8 has several advantages. First, safety, decomposition temperature of about 60 degrees C, relatively stable, storage and transportation is relatively safe, convenient, non-explosive; Not high, compared with the whole water system consumption isocyanate less, and the foaming agent itself has a small enough molecular weight, in unit mass CO2 release is high; The reaction start-up time with isocyanate is short, which is conducive to the process realization of the spraying system, fifth, the size is stable, the decomposition product "alcoholamine" is suitable as a crosslinking agent, the cross-linking structure significantly enhances the strength of the material, the co2 gas in the bubble hole also supports the bubble hole wall; Is the insulation effect is good, the foaming agent and foam raw material mixing good, the foam material produced in the bubble hole distribution and size are very uniform;
in the gnawing off with polyurethane spraying this hard bone at the same time, the company is also increasing the application of new chlorofluorofluoroesturethane chemical foaming agent in other areas of the promotion efforts, in the external wall spraying, cold storage spraying, sheet, pipe spiral spraying, door panel insulation and other hard foam polyurethane main application areas focused on the application test, the current pipeline winding spraying and other spray applications are up to national standards.
Tinglang Environmental Science and Technology (Kunshan) Co., Ltd. will be a new type of chlorofluoropoluoropolybethane chemical foaming agent for high and low temperature wet heat test box structure components and insulation materials, through the product technical parameters of the relevant demonstration, the product high temperature tolerance, laboratory surface temperature rise, temperature mixing, volatility, stability, mechanical properties, flame retardant properties were tested. The product use report issued by Tinglang Environment shows that the laboratory insulation library plate produced using the new chlorofluorofluoroesturethane chemical foaming agent and its combination polyether has a wide range of applications, excellent insulation performance, no obvious deformation after high temperature testing, good bonding force of foam materials and substrates, flame retardant (no need to add flame retardant materials), product quality is fully in line with the insulation and mechanical properties of the environmental test equipment library.
(Group) Co., Ltd. completed the application test of high-grade anti-theft door insulation filling materials. Mei heart company introduced the company's two brands of combined polyether products, for the production and use of anti-theft doors. After on-the-machine experiments, the two polyurethane compositions meet the production requirements of high and low density doors, and each parameter meets the quality standards of the product. Meisin said that the company's environmentally friendly polyurethane foaming combination material is easy to use, the product production process is normal, do not have to change the existing production process, save enterprise costs, the production process of the whole line of environmental protection energy conservation and emission reduction, to achieve the seamless replacement of existing polyurethane foam.
Yantai Shunda Polyurethane Co., Ltd. completed the application test of external wall spraying, cold storage spraying, pipe spiral spraying, successfully developed a series of combined polyether suitable for cold storage spraying, external wall spraying, pipe spiral spraying, and carried out a batch promotion and application. There are no anomalies in the whole application process, in cold storage, external walls, pipe spraying, strong bonding force, smooth surface, to meet the requirements of various environments for polyurethane foam performance.
" Yutong's spraying line is expected to be ready to be built within a few months. Next, we will continue to expand the application of CFA8, in the automotive, cold storage, pipeline and other fields to accelerate the promotion. The replacement of green chemical foaming agent has great effect. Yang Xihong told reporters.