Preparation method of high-hardness polyurethane forklift wheel
A polyurethane and high-hardness technology, applied in the field of polyurethane, can solve the problems of damage to bones and skin, low hardness of fork wheels, and high labor intensity, etc., and achieve the effects of good fatigue resistance, low rolling resistance, and low cost
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0019] A method for preparing a high-hardness polyurethane forklift wheel, comprising the steps of:
[0020] S1. Mix 2g of sepiolite powder, 1.5g of lecithin, and 50g of water, heat up to 95°C and stir for 15min at a stirring speed of 5400r / min, adjust the pH of the system to 5-5.7, heat up to 60°C and continue stirring for 15min, centrifuge, The precipitate is washed with water, and spray-dried to obtain pretreated sepiolite;
[0021] S2. Mix 100g of polyurethane prepolymer, 20g of pretreated sepiolite, and 5g of neopentyl glycol evenly, place it in a mold, demould after 50min, heat up to 95°C and keep it warm for 5h to obtain a high-hardness polyurethane forklift wheel.
Embodiment 2
[0023] A method for preparing a high-hardness polyurethane forklift wheel, comprising the steps of:
[0024] S1. Mix 8g of sepiolite powder, 0.5g of lecithin, and 100g of water, heat up to 85°C and stir for 35min, the stirring speed is 5000r / min, adjust the pH value of the system to 5-5.7, heat up to 70°C and continue stirring for 5min, centrifuge, The precipitate is washed with water, and spray-dried to obtain pretreated sepiolite;
[0025] S2. Mix 140g of polyurethane prepolymer, 5g of pretreated sepiolite, and 15g of neopentyl glycol evenly, place it in a mold, demould after 30min, heat up to 105°C and keep it warm for 2h to obtain a high-hardness polyurethane forklift wheel.
Embodiment 3
[0027] A method for preparing a high-hardness polyurethane forklift wheel, comprising the steps of:
[0028] S1. Mix 4g of sepiolite powder, 1.2g of lecithin, and 60g of water, heat up to 92°C and stir for 20min, the stirring speed is 5300r / min, adjust the pH value of the system to 5-5.7, heat up to 64°C and continue stirring for 12min, centrifuge, The precipitate is washed with water, and spray-dried to obtain pretreated sepiolite;
[0029] S2. Mix 110g of polyurethane prepolymer, 15g of pretreated sepiolite, and 8g of neopentyl glycol evenly, place it in a mold, demould after 45min, heat up to 98°C and keep it warm for 4h to obtain a high-hardness polyurethane forklift wheel.
PUM
Property | Measurement | Unit |
---|---|---|
elastic recovery rate | 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