Environment-friendly preparation method of polyamide microspheres
A polyamide and environment-friendly technology, applied in the field of environment-friendly preparation of polyamide microspheres, can solve problems such as unfavorable environmental protection, chemical danger, increase of preparation cost, etc., and achieves avoiding cost increase, good particle size consistency, and avoiding process Complicated effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0020] Example 1
[0021] Weigh 95g of butyrolactam, heat it to a molten state of 30°C, add 5g of polystyrene in it, stir and dissolve; after the polystyrene is completely dissolved, turn on the vacuum pump, carry out vacuum distillation to the above-mentioned melt mixture, and remove a trace amount of it. water, then add 0.05g of sodium and 0.05g of toluene-2,4-diisocyanate, mix quickly and evenly, pour it into a preheated mold with a temperature of 120 ° C, and carry out butyrolactam anion ring-opening polymerization reaction, constant temperature reaction 1 The polyamide / polystyrene alloy was obtained by cooling and demoulding after 10 minutes; the polyamide / polystyrene alloy was crushed, and then added to 200 g of molten butyrolactam at 30°C, fully dissolved and filtered, and the obtained insoluble matter was Polyamide microspheres; the remaining filtrate is a butyrolactam melt mixture containing 5 g of polystyrene, and 5.27 g of polystyrene are added to the melt mixture t...
Example Embodiment
[0022] Example 2
[0023] Weigh 50 g of caprolactam, heat it to 180 ° C to melt, add 50 g of polyacrylonitrile to it, stir and dissolve; after the polyacrylonitrile is completely dissolved, turn on the vacuum pump, carry out vacuum distillation to the above-mentioned melt mixture, remove a trace amount of water, and then Add 1 g of sodium hydride and 1 g of benzoyl chloride, mix quickly and evenly, pour it into a preheated mold with a temperature of 180 ° C, carry out anionic ring-opening polymerization of caprolactam, react at a constant temperature for 30 minutes, and then cool and demould to obtain polyamide / polyamide. Acrylonitrile alloy. The polyamide / polyacrylonitrile alloy is crushed, then added to 5000g of molten caprolactam at 180°C, fully dissolved and filtered, and the obtained insoluble matter is polyamide microspheres; the obtained filtrate is the caprolactam containing 50g of polyacrylonitrile. Melt mixture, add 4450g of polyacrylonitrile to the melt mixture to ...
Example Embodiment
[0024] Example 3
[0025] Weigh 75 g of enantholactam, heat it to 105 ° C to melt, add 25 g of polymethyl methacrylate to it, stir and dissolve; after the polymethyl methacrylate is completely dissolved, turn on the vacuum pump, and carry out vacuum distillation to the above-mentioned melt mixture , remove the trace amount of water, then add 0.56g of sodium ethoxide and 0.56g of maleic anhydride, mix quickly and evenly, pour it into a preheated mold with a temperature of 150 ° C, carry out enantiolactam anion ring-opening polymerization reaction, constant temperature reaction After 15 minutes, it was cooled and demolded to obtain a polyamide / polymethyl methacrylate alloy. The polyamide / polymethyl methacrylate alloy was crushed, then added to 2600g of molten enantholactam at 105°C, fully dissolved and filtered, and the obtained insoluble matter was polyamide microspheres; the obtained filtrate contained 25g Enantholactam melt mixture of polymethyl methacrylate, add 840 g of po...
PUM
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