Доброго Дня, Антон! Каучук и полиэтилен напрямую не смешиваются. Их макромолекулы не совместимы. Но вы можете их привить их друг к другу или создать композит, возможно метаматериал. В моей практике были примеры, когда я делал композиты с синергетическими свойствами из ПЭВД и монтморрилонита. Сам полиэтилен очень недружелюбен к дугим материалам, отвергает их, отлипает. Нужно придумать функцию материала и последовательно идти к ее осуществлению.

Polymer blends can be prepared by a variety of techniques, which include solution blending, latex blending, mechanical blending, and mechanochemical blending. Among the different types of thermoplastic elastomers, those prepared by physical blending of an elastomer and a thermoplastic material under high shearing action have gained considerable attention due to the simpler method of preparation and easy attainment of the desired physical properties.

Thermoplastic elastomers based on high-density polyethylene (HDPE) and nitrile rubber (NBR) were prepared by a melt blending technique. These blends couple the elastic and oil-resistance properties of NBR and the excellent mechanical properties, ozone resistance, and processability characteristics of HDPE. Because the system is incompatible, technological compatibilization was sought by the addition of maleic- and phenolic-modified polyethylene. The compatibilizer locates at the interface and reduces the interfacial tension and, thus, provides improved adhesion between the phases. The experimental results could be applied to test the current compatibilization theories of Noolandi and Hong.

Please see this researches that might be useful:

· Polymer Science, Series D, 2019, 12(2), 223–225; DOI:10.1134/S1995421219020084

· Polymers, 2022, 14(12), 2457; DOI:10.3390/polym14122457

· J. App. Pol. Sc., 1995, V. 57, 449-465. CCC 002 1 -8995/95/040449- 17

Best regards,

Dear Doctor

Go To

Rubber-polyethylene Modified Bitumens

• March 2004
• Iranian Polymer Journal 13(2)
• Ali Akbar Yousefi

"Effect of the blends of different polyethylenes (LDPE = low-density polyethylene, LLDPE = linear low density polyethylene and HDPE = high density polyethylene) and rubbers (PBR = polybutadiene rubber, SBR = styrene butadiene random copolymer, NR = natural rubber and SEBS = styrene-ethylene-butylene-styrene block copolymer) on bitumen properties was investigated. PBR-PE Blends form a physical net- work in bitumen medium, whereas their SBR, NR and SEBS counterparts do not. The properties of the resulting bituminous blends are comparable with those of SEBS blends. LLDPE shows a higher rate of effectiveness on bitumen properties as compared with other polyethylenes. SBR Blends show a better elastic recovery and film forming proper- ties. Addition of heavy vacuum slops (HVS) oil into the ternary blends of rubber-PE-bitu- men results in rubber an increase in inclusions volume. The rubber swelling increases as HVS oil concentration increases. An increase in HVS Oil concentration could be adjust- ed depending on the designed performance grade (PG). SBR-PE Blends found to be the most effective blends on bitumen properties."

Method uses machines like two-roll mills or extruders, or internal mixers like Banbury mixers ;

https://www.sciencedirect.com/topics/engineering/banbury-mixer

https://www.sciencedirect.com/science/article/abs/pii/S0950061822037801

The technology commonly used for mixing synthetic rubber and polyethylene involves specialized machinery designed to blend the two materials effectively. One commonly used machine is an internal mixer, such as a Banbury mixer. This type of mixer employs rotors and mixing chambers to shear and mix the materials together under controlled conditions of temperature and pressure.

Another method involves the use of twin-screw extruders. These machines utilize twin screws rotating within a barrel to convey, melt, and mix the rubber and polyethylene together as they pass through the extruder.

Overall,the choice of technology depends on factors such as the desired end product properties, production volume, and processing requirements.

Hello , mixing strongly depended on target properties - not only ultimate, but also dispersion, potentional effect of domeins. Also other ingredients are need to be taken into consideration. But some books regarding mixing Mixing of Rubber Compounds

Author: Limper, A.

Copyright: 2012

ISBN: 9781569904589

Hardcover: 239 pages

measurement-and-control-2019.pdf (vscht.cz)

Measurement and Control of Chemical, Food and Biotechnological Processes - Volume I Process Measurement Restorio.cz

Dear Dr. Anton Kuzmin,

Hopefully, you are doing well, I appreciate your contact.

For more information on the issue of mixing rubber and polyethylene, please see the following researches, hoping that it will be useful to the subject of your study;

1) Strategies for compatibilization of polymer/waste tire rubber systems prepared via melt-blending, (2023), Advanced Industrial and Engineering Polymer Research, https://doi.org/10.1016/j.aiepr.2023.08.001

2) Biodegradability of Polyolefin-Based Compositions: Effect of Natural Rubber. Polymers, (2022), 14, 530. https://doi.org/10.3390/polym14030530

3) Influence of Tire Rubber Particles Addition in Different Branching Degrees Polyethylene Matrix Composites on Physical and Structural Behavior. Polymers, (2021). 13. https://doi.org/10.3390/polym13193213.

4) Waste Rubber Recycling: A Review on the Evolution and Properties of Thermoplastic Elastomers, (2020), Materials 13(3):782, https://doi.org/10.3390/ma13030782

5) Dynamically vulcanized high-density polyethylene/ nitrile butadiene rubber blends compatibilized chlorinated polyethylene, Journal of Thermoplastic Composite Materials, (2018), 1–19 https://doi.org/10.1177/0892705718761557

Well! If you have more questions, feel free to message me!

Sincerely, Ali