Hydroxymethyl acrylamide-acrylate copolymer toughened and modified polylactic acid material and preparation method thereof
A technology of methylolacrylamide and polylactic acid materials, applied in the field of toughened modified polylactic acid materials and their preparation, can solve the problems of inapplicability, opacity, poor extensibility of microporous materials, etc., and achieve fast polymerization reaction, The effect of short production cycle and easy industrial promotion and application
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0029] Stir and mix methylol acrylamide and butyl acrylate in a weight ratio of 1:40, and 0.1% azobisisobutyronitrile based on the total weight of the reaction monomers, and polymerize at 60°C for 1.5 hours, that is Obtain number-average molecular weight and be 18,000 copolymer toughening agents; The number-average molecular weight after drying is 80,000 PLA92 parts and 8 parts of copolymer toughening agents are premixed, then premix is put into internal mixer, The toughened and modified PLA material can be obtained by melting and masticating for 5 minutes at a masticating temperature of 170°C.
[0030] The tensile strength of the material is 40Mpa, the elongation at break is 150%, and the Izod impact strength is 7KJ / m 2 .
Embodiment 2
[0032] Stir and mix methylolacrylamide and ethyl acrylate in a weight ratio of 1:40, and 2.0% azobisisobutyronitrile based on the total weight of the reaction monomers, and polymerize at 60°C for 2.0 hours, that is Obtain the copolymer toughening agent that the number average molecular weight is 23,000; Premix 92 parts of PLA and 8 parts of copolymer toughening agent that the number average molecular weight is 100,000 after drying, then put the premix into the twin-screw extruder Medium-melt plasticizing extrusion, so that the melt temperature of extrusion granulation is 170 ° C, to obtain toughened modified PLA material.
[0033] The tensile strength of the material is 47Mpa, the elongation at break is 80%, and the Izod impact strength is 6.5KJ / m 2 .
Embodiment 3
[0035] Stir and mix methylol acrylamide and butyl acrylate in a weight ratio of 1:30, and 0.5% azobisisobutyronitrile based on the total weight of the reaction monomers, and polymerize at 70°C for 2.5 hours, that is Obtain the copolymer toughening agent that the number average molecular weight is 35,000; Premix 95 parts of PLA and 5 parts of copolymer toughening agent that the number average molecular weight is 150,000 after drying, then put the premix into the twin-screw extruder Medium-melt plasticizing extrusion, so that the melt temperature of extrusion granulation is 170 ° C, to obtain toughened modified PLA material.
[0036] The tensile strength of the material is 50Mpa, the elongation at break is 50%, and the Izod impact strength is 5KJ / m 2 .
PUM
Property | Measurement | Unit |
---|---|---|
tensile strength | aaaaa | aaaaa |
impact strength | 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, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com