Starch-based degradable bioplastic and preparation method thereof
A bioplastic and starch-based technology, applied in the field of degradable bioplastics, can solve problems such as poor descriptive properties, decreased mechanical strength, and poor results
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0018] 6kg of polypropylene, 1.5kg of highly hydrophobic potato starch, 200g of hydrogenated oil, 10g of manganese stearate, 200g of paraffin, 50g of stearic acid, 30g of borax, and 1.5kg of talcum powder were put into a high-speed mixer and stirred for 20 minutes, then added to double In a screw extruder, a 2.5mm masterbatch is made. Use this masterbatch to make lunch box through injection molding machine. This product contains 15.7% of highly hydrophobic starch material and has strong hardness. After two weeks of burying in moist soil, most of the surface was moldy.
Embodiment 2
[0020] High-density polyethylene 8.5kg, high hydrophobicity wheat starch 1.5kg, rapeseed oil 200g, stearic acid 10g, manganese naphthenate 10g, after putting into the high-speed mixer and stirring for 30min, join in the twin-screw extruder, 180 ℃ extrusion granulation, air-cooled hot cut into 2mm granules. The pellets were blown into a 25 µm thick film. After testing, its longitudinal tensile strength is 16MPa, the longitudinal elongation at break is 140%, the transverse tensile strength is 13MPa, and the transverse elongation at break is 530%. After two weeks in moist soil, the area of mold spots accounted for 48% of the total area, and after six months, only some small fragments remained.
Embodiment 3
[0022] 2kg of polystyrene, 800g of highly hydrophobic rice starch, 200g of refined soybean oil, 20g of lecithin, 50g of perbenzoic acid, and 5g of iron naphthenate were put into a high-speed mixer and stirred for 30 minutes before being added to a twin-screw extruder. Made of 2.5mm masterbatch. Use this masterbatch to make dinner plates through an injection molding machine. This product was buried in moist soil, and after two weeks, most of the surface was covered with mildew, and after eight months, it was broken, and the fragments were gray-black. In addition, the plate placed outdoors for eight months is gray in color, shattered at the touch of a touch, and basically has no mechanical strength.
PUM
Property | Measurement | Unit |
---|---|---|
tensile strength | aaaaa | aaaaa |
tensile strength | aaaaa | aaaaa |
elongation at break | 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, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com