Method and system for preparing polymer polyol
A polyol and polymer technology, applied in chemical instruments and methods, mixers, chemical/physical processes, etc., can solve the problems of increasing labor intensity and energy consumption of workers, shorten the cooling time of materials, reduce labor intensity, The effect of improving quality
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0042] This example relates to a system for preparing polymer polyols.
[0043] Specifically, such as figure 1 As shown, the system for preparing polymer polyols includes a first feed unit 1 , a second feed unit 2 and a reactor 3 . The first feed unit 1 and the second feed unit 2 are arranged side by side, and the reactor 3 is connected to both the first feed unit 1 and the second feed unit 2 .
[0044] Wherein, the first feeding unit 1 is used for mixing the first material and delivering the first material to the reactor 3 , and the second feeding unit 2 is used for delivering the second material to the reactor 3 . Specifically, the first material is raw materials other than the basic polyether, usually including vinyl monomer A, chain transfer agent B, dispersant C and initiator D, and the second material is the basic polyether.
[0045] Optionally, in this embodiment, the first feeding unit 1 includes a batching tank 11 , a cooling system 12 and a dropping tank 13 . Amon...
Embodiment 2
[0055] This embodiment relates to a method for preparing polymer polyols, which is applied to the system provided in Example 1, and specifically includes the following steps:
[0056] S1. Vinyl monomer (acrylonitrile 1.05kg and styrene 2.45kg), chain transfer agent isopropanol 2.20kg, dispersant 1.30kg and initiator dimethyl azobisisobutyrate 0.20kg at 14 ℃ according to Proportional mixing to obtain the first material;
[0057] S2. Simultaneously transport 7.20kg of the first material and 30.00kg of the basic polyether to the reactor for polymerization.
[0058] Tested according to the GB / T12008.7 standard, the viscosity of the polymer polyol is 850mPa.s, the solid content is 10.05%, and the particle size distribution of the product is wide and uniform.
[0059] It takes 15 hours to produce 37.20kg of polymer polyol, and the batching frequency is once. After calculation, the energy consumption is 6.84 yuan / kg.
Embodiment 3
[0061] This embodiment relates to a method for preparing polymer polyols, which is applied to the system provided in Example 1, and specifically includes the following steps:
[0062] S1. Vinyl monomer (acrylonitrile 5.32kg and styrene 12.42kg), chain transfer agent isopropanol 2.66kg, dispersant 1.46kg and initiator dimethyl azobisisobutyrate 0.14kg at 14°C Proportional mixing to obtain the first material;
[0063] S2. Transport 22.00kg of the first material and 20.00kg of the basic polyether to the reactor for polymerization at the same time.
[0064] Tested according to the GB / T12008.7 standard, the viscosity of the polymer polyol is 3680mPa.s, the solid content is 45.08%, and the particle size of the product is evenly distributed.
[0065] It takes 17 hours to produce 42.00kg of polymer polyol, and the batching frequency is 2 times. After calculation, the energy consumption is 6.92 yuan / kg.
PUM
Property | Measurement | Unit |
---|---|---|
viscosity | aaaaa | aaaaa |
viscosity | aaaaa | aaaaa |
viscosity | 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