Polypropylene resin composition for hot channel injecting formation and production thereof
A polypropylene resin, hot runner injection molding technology, applied in the field of hot runner injection molding, can solve the problems of difficult product brand conversion, poor processing fluidity, and reduced rigidity, so as to reduce melt anisotropy, improve strength and bending strength. Good results
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
specific Embodiment approach 2
[0025] Most of it is the same as Example 1, and the difference is that the raw material ratio is: homopolypropylene S820 930g; Ethylene-propylene rubber (EPDM) 31g, 3745P in the Norde1 IP series, superfine styrene-butadiene powder rubber Narpow VP101 31g; Nucleating agent Millad3988 2g; primary antioxidant Irganox1010 2g; secondary antioxidant Irgafos168 3g; rheology modifier Viton FreeFlow Z200 1g; screw speed 250 rpm, feeder speed 80 rpm.
[0026]Melt index MI: 18.1g / 10min; Tensile strength: 34.60MPa; Flexural strength: 33.9MPa; Flexural modulus: 1589MPa; Normal temperature notched impact strength: 80.05J / m; Longitudinal molding shrinkage: 1.03%, transverse molding Shrinkage, 0.93%, longitudinal molding shrinkage / transverse molding shrinkage 1.06.
[0027] While toughening and modifying polypropylene, the modified composition has significantly better processing flow properties than polypropylene base resin and other modified systems with similar composition ratios, and the m...
specific Embodiment approach 3
[0028] Most of it is the same as Example 1, except that the raw material ratio is: homopolypropylene S820 950g; ethylene-propylene rubber (EPDM) 21g, 3745P in the Nordel IP series, superfine styrene-butadiene powder rubber Narpow VP101 21g; Nucleating agent Millad3988 2g; main antioxidant Irganox1010 2g; secondary antioxidant Irgafos168 3g; rheology modifier Viton FreeFlow Z200 1g; screw speed 220 rpm, feeder speed 30 rpm.
[0029] Melt index MI: 19.3g / 10min; Tensile strength: 35MPa; Flexural strength: 38.3MPa; Flexural modulus: 1593MPa; Normal temperature notched impact strength: 77.2J / m; Longitudinal molding shrinkage: 1.02%, transverse molding shrinkage Rate, 0.95%, longitudinal molding shrinkage / transverse molding shrinkage 1.03.
[0030] While toughening and modifying polypropylene, the modified composition has significantly better processing flow properties than polypropylene base resin and other modified systems with similar composition ratios, and the melt flow rate is...
specific Embodiment approach 4
[0031] Most of it is the same as Example 1, and the difference is that the raw material ratio is: homopolypropylene S820 930g; Ethylene-propylene rubber (EPDM) 30g, 3745P in the Nordel IP series, superfine styrene-butadiene powder rubber Narpow VP101 28.5g; Nucleating agent Millad3988 2g; primary antioxidant Irganox1010 2.5g; secondary antioxidant Irgafos168 5g; rheology modifier Viton FreeFlow Z200 2g.
[0032] Melt index MI: 18.1g / 10min; Tensile strength: 34.9MPa; Flexural strength: 36.7MPa; Flexural modulus: 1571MPa; Normal temperature notched impact strength: 83.61J / m; Longitudinal molding shrinkage: 1.03%, transverse molding Shrinkage, 0.98%, longitudinal molding shrinkage / transverse molding shrinkage 1.04.
[0033] While toughening and modifying polypropylene, the modified composition has significantly better processing flow properties than polypropylene base resin and other modified systems with similar composition ratios, and the melt flow rate is stable; rigidity (fle...
PUM
Property | Measurement | Unit |
---|---|---|
particle diameter | aaaaa | aaaaa |
density | 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