High-thermal-conductivity radiation crosslinked polyethylene pipe, and preparation method and application thereof
A radiation cross-linked polyethylene pipe technology is applied in the field of high thermal conductivity radiation cross-linked polyethylene pipes and their preparation, which can solve the problems of low hydraulic resistance, increased brittleness of pipes, easy occurrence of brittle cracks, etc. Wide service temperature, the effect of improving brittleness
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0047] Example 1
[0048] A high thermal conductivity radiation cross-linked polyethylene pipe prepared by the following method (such as figure 1 Shown):
[0049] 1) Preparation of modified masterbatch (such as figure 2 Shown):
[0050] Surface activation: first add 48 parts of 25μm expandable graphite and 2 parts of 5μm boron nitride to the high-speed mixer, stir at 60~70℃ for 5min; then take 1.5 parts of silane coupling agent KH-550 and 3 parts of industrial white After the oil is diluted, add it to the powder and continue to stir for 8 minutes;
[0051] Mixing and granulation: 50 parts of high-density polyethylene 5502, 15 parts of thermoplastic elastomer (10 parts of ethylene-vinyl acetate copolymer and 5 parts of ethylene-propylene copolymer), 2 parts of crosslinking sensitizer Alcohol diacrylate and 0.5 parts of antioxidant (0.3 parts of 1010 and 0.2 parts of 168) were added to the surface-activated powder, and stirred at high speed for 12 minutes. Subsequently, the mixed raw...
Example Embodiment
[0060] Example 2
[0061] A high thermal conductivity radiation cross-linked polyethylene pipe is prepared by the following method:
[0062] 1) Preparation of modified masterbatch:
[0063] Surface activation: first add 16 parts of 45μm natural graphite and 4 parts of 20μm boron nitride to the high-speed mixer, stir at 55~65℃ for 3min; then take 1 part of titanate coupling agent TTS and 3 parts of absolute ethanol Add to the powder after dilution and continue to stir for 7 minutes;
[0064] Mixing and granulation: 20 parts of medium density polyethylene DX800, 5 parts of thermoplastic elastomer (2 parts of ethylene-vinyl acetate copolymer and 3 parts of ethylene-octene copolymer), 2.5 parts of crosslinking sensitizer trimethylol Propane trimethacrylate and 0.5 parts of antioxidant (0.3 parts of 1010 and 0.2 parts of 1178) were added to the surface-activated powder, and stirred at high speed for 10 minutes. The same as in Example 1.
[0065] 2) Extrusion of heat conducting pipe:
[006...
Example Embodiment
[0069] Example 3
[0070] A high thermal conductivity radiation cross-linked polyethylene pipe is prepared by the following method:
[0071] 1) Preparation of modified masterbatch:
[0072] Surface activation: first add 100 parts of 15μm colloidal graphite and 25 parts of 2μm boron nitride to the high-speed mixer, stir at 70~80℃ for 5min; then take 5 parts of aluminum-titanium composite coupling agent HY-133 and 10 parts industrial After diluting the white oil, add it to the powder and continue to stir for 10 minutes;
[0073] Mixing and granulation: 40 parts of medium density polyethylene SP980, 45 parts of thermoplastic elastomer (35 parts of ethylene-vinyl acetate copolymer and 10 parts of ethylene-butene copolymer), 3 parts of crosslinking sensitizer trimethylol Propane triacrylate and 1 part of antioxidant (0.7 part of 754 and 0.3 part of 168) were added to the powder after surface activation, and stirred at high speed for 15 minutes. The same as in Example 1.
[0074] 2) Extrus...
PUM
Property | Measurement | Unit |
---|---|---|
Thermal conductivity | 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