06:00 | 25/07/2021 Science - Technology
(VEN) - The Research Institute of Pulp and Paper Industry (RIPPI) under the Ministry of Industry and Trade (MoIT) has coordinated with the Van Diem Paper Joint Stock Company to produce a waterproofing agent for industrial packaging paper.
Styrene acrylate copolymer emulsion contributes to improving paper quality
The project is part of the MoIT’s drive to develop high-tech industries.
Project leader Dr. Cao Van Son said industrial packaging paper requires the use of chemicals with waterproof membrane properties.
Waterproofing binder products are considered effective and environmentally friendly. In particular, styrene acrylate copolymer is a waterproofing agent with outstanding advantages such as good form-film properties, low cost and higher waterproofing ability than other substances. In addition, it can provide the paper with immediate waterproofing ability after drying without having to wait for the glue downtime.
The use of styrene acrylate copolymer emulsion contributes to improving and stabilizing paper quality in Vietnam’s climate conditions, facilitating control of the waterproofing level and required quality of paper products. The emulsion disintegrates in water and does not affect the recycling of paperboard packaging materials.
Dr. Dang Van Son said his team has completed the technological process of producing the emulsion in the laboratory and on the production line with a designed capacity of three tonnes per batch and 450 tonnes per year. It has conducted successful trial production of nearly 170 tonnes with stable quality, and also completed its application as a waterproofing agent for industrial packaging paper. The production process does not affect the current environment (wastewater, emissions, solid waste) of the enterprise.
Some 140,429 tonnes of styrene acrylate copolymer emulsion have already been sold on the market. In addition, the project has developed and issued nine basic standards on raw materials, and one on product quality and product quality inspection process.
The project results promote the development of the Van Diem Paper JSC and the RIPPI’s research, application and technological transfer, improving the competitiveness of the company and helping replace some of the current imports.
Deputy General Director in charge of production at the Van Diem Paper JSC Nguyen Manh Anh revealed the company often used the imported alkyl ketene dimmer (AKD) binder to waterproof the surface of industrial packaging paper. Thanks to the support of the RIPPI, it has created styrene acrylate copolymer emulsion product as a good substitute for the AKD.
|In the future, the research team will expand production scale, improve product packaging and label designs, and promote sales in the domestic market.|