Special coating resin combination for polypropylene heavy-load packaging bag and preparation method thereof
A technology for coating resin and polypropylene homopolymer, which is applied to flexible coverings, packaging, wrapping paper, etc., can solve the problems of large fluctuations in melt flow rate, failure to meet environmental protection requirements, and low peeling strength of coating films. Small difference in peel strength, excellent rheological properties during processing, and weak film orientation
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Example Embodiment
[0022] Example 1
[0023] Take 1000g of the composition, of which: 900g homopolypropylene, melt flow rate of 2.8g / 10min; low density polyethylene (LDPE) 60g; petroleum resin 10g; calcium carbonate 27.7g; hindered phenolic antioxidant 1g; degradation agent 1.3g.
[0024] Add the weighed combined materials into a high-speed mixer and mix for 5 minutes to form a homogeneous mixture. Then, the mixture is added to a twin-screw extruder with a feeder and kneaded and extruded into strips, and then pelletized by a pelletizer to form a special coating resin composition for polypropylene heavy-duty container bags. The processing technology is: the temperature of the first zone of the twin-screw extruder is 170°C, the temperature of the second zone is 175°C, the temperature of the third zone is 185°C, the temperature of the fourth zone is 190°C, the temperature of the fifth zone is 195°C, the temperature of the sixth zone is 200°C, and the temperature of the seventh zone is 200°C. ℃, eight z...
Example Embodiment
[0026] Example 2
[0027] Take 1000 g of the composition, including 890 g of homopolypropylene; 60 g of low-density polyethylene (LDPE); 20 g of petroleum resin; 27.7 g of calcium carbonate; 1 g of antioxidant; and 1.3 g of degrading agent.
[0028]Add the weighed combined materials into a high-speed mixer and mix for 5 minutes to form a homogeneous mixture. Then, the mixture is added to a twin-screw extruder with a feeder and kneaded and extruded into strips, and then pelletized by a pelletizer to form a special coating resin composition for polypropylene heavy-duty container bags. The processing technology is: the temperature of the first zone of the twin-screw extruder is 170°C, the temperature of the second zone is 175°C, the temperature of the third zone is 185°C, the temperature of the fourth zone is 190°C, the temperature of the fifth zone is 195°C, the temperature of the sixth zone is 200°C, and the temperature of the seventh zone is 200°C. ℃, eight zone temperature 200℃; ...
Example Embodiment
Specific implementation mode 3:
[0030] Take 1000 g of the composition, including 885 g of homopolypropylene; 60 g of low-density polyethylene (LDPE); 25 g of petroleum resin; 27.7 g of calcium carbonate; 1 g of antioxidant; and 1.3 g of degrading agent.
[0031] Add the weighed combination materials into a high-speed mixer and mix for 4 minutes to form a homogeneous mixture. Then, the mixture is added to a twin-screw extruder with a feeder and kneaded and extruded into strips, and then pelletized by a pelletizer to form a special coating resin composition for polypropylene heavy-duty container bags. The processing technology is: the temperature of the first zone of the twin-screw extruder is 170°C, the temperature of the second zone is 175°C, the temperature of the third zone is 185°C, the temperature of the fourth zone is 190°C, the temperature of the fifth zone is 195°C, the temperature of the sixth zone is 200°C, and the temperature of the seventh zone is 200°C. ℃, eight zone ...
PUM
Property | Measurement | Unit |
---|---|---|
Melt flow rate | aaaaa | aaaaa |
Melt flow rate | aaaaa | aaaaa |
Tensile strength | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap