Cradle to Consumer
Identity ID
1f64a480-2f85-424c-89f2-8450af6bf505
Materials
Associated ID
754be081-cd97-4ec8-8547-428fa889969c
Included activities starts
Included activities ends
Description
This dataset is a market dataset, representing the consumption market of the region; the dataset includes the transport of the product from the gate to the consumer end, and the transport service is calculated according to the transport situation of this product in this region. Acrylate impact modifier is widely used in fields with requirements for weather resistance and safety, such as PVC processing, engineering plastics modification, coatings and adhesives, medical-grade plastics, and outdoor plastic products. The dataset contains the main raw and auxiliary materials, energy, waste and atmospheric emissions of the production process, in which the waste gas treatment process is included within the dataset boundary, and infrastructure such as the manufacture of production equipment and the construction of plant buildings is not included within the dataset boundary; the data inventory is formed by merging data from multiple sources; the production activities of this product include polymerisation and emulsion post-treatment.
Activity Description
The production activities for this product include polymerization and emulsion post-processing processes.
Process Description
Acrylate impact modifiers are a type of polymer copolymers produced through emulsion polymerization or suspension polymerization with acrylate monomers (such as methyl methacrylate and butyl acrylate) as the core. Common types include core-shell structure acrylate copolymers, graft acrylate copolymers, etc. Most of them appear to be white powder or granules, odorless and tasteless. It has stable chemical properties, good weather resistance and aging resistance, has both rigidity and toughness, and can improve the impact strength of the substrate. Its modification mechanism is a core-shell structure design: the elastic core (such as butyl acrylate homopolymer) can absorb impact energy and inhibit crack expansion; the rigid shell (such as methyl methacrylate homopolymer or copolymer) is closely combined with the base material resin to ensure compatibility and processing fluidity. The core and shell layer work together to greatly improve the impact resistance without significantly reducing the rigidity and heat resistance of the base material. It is mainly used in industry for PVC processing (as a core impact modifier to solve the problem of low-temperature brittleness of PVC) and modification of engineering plastics (to improve its impact resistance and toughness, used in automobile parts and electronic casings); it is also used in coatings and adhesives, and upgrading of plastic products. It can also be used in fields such as medical-grade plastics and outdoor plastic products that require weather resistance and safety.
Time period
2016
2026
Geography
China,Yunnan
Macroeconomic value
Business-as-Usual
Data validation
Yes
Technology
Current Technology
Technology comment
The plant mainly comprises polymerization and emulsion post-treatment (drying).
1. Raw materials are pumped to metering tanks in the polymerization workshop, weighed according to the formulation, mixed uniformly, and transferred by gravity through pipelines to the reactor.
2. Process water, emulsifier, raw materials, initiator, and other ingredients are charged to the reactor in the specified amounts. The agitator is started, nitrogen is introduced to displace the air in the headspace, and the materials are heated to 55-65°C to initiate the reaction. Because the reaction is exothermic, circulating cooling water is used to maintain the required process temperature of approximately 60°C. Once the reaction meets the specified endpoint, steam is supplied to raise the temperature to 80-85°C for the holding stage. After holding, circulating water is supplied to the reactor jacket to cool the contents to the specified temperature, completing polymerization.
3. After polymerization, the bottom discharge valve is opened and the product is transferred by gravity through a pipeline to the bulk emulsion tank. The tank agitator is operated to ensure uniform composition throughout the liquid.
4. The emulsion is conveyed through a pipeline to a liquid filter and then pumped at high pressure to the top of the drying tower for spray drying.