Calcium sulfate modified polylactic acid material and preparation method thereof
A polylactic acid material and calcium sulfate technology, applied in the field of calcium sulfate modified polylactic acid material and its preparation, can solve the problems of insufficient impact strength, poor water resistance, limited application scope, etc., and achieve high impact strength and good dimensional stability. , good water resistance
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0017] The raw material weight ratio of the calcium sulfate-modified polylactic acid material in this embodiment is: polylactic acid (PLA) 15 Kg, calcium sulfate 4 Kg, coupling agent vinyltriethoxysilane 1 Kg.
[0018] Preparation:
[0019] (1) Surface modification of calcium sulfate: dissolve the coupling agent vinyltriethoxysilane in 250ml of absolute ethanol, stir at 45°C for 5 hours, repeat cleaning and suction filtration 5 times until the impurities are removed; 500ml of absolute ethanol to obtain a suspension; then add calcium sulfate, stir for 25 minutes, sonicate for 10 minutes, and stir for another 25 minutes; filter with absolute ethanol, wash 5 times, and then dry in a vacuum oven at 50°C for 24 hours to obtain dryness Modified anhydrous calcium sulfate;
[0020] (2) Put polylactic acid and the modified anhydrous calcium sulfate obtained in step (1) into a high-speed stirrer, and stir for 30 minutes at room temperature to obtain a mixture of modified anhydrous calc...
Embodiment 2
[0024] The raw material weight ratio of the calcium sulfate-modified polylactic acid material in this embodiment is: polylactic acid (PLA) 14Kg, calcium sulfate 3Kg, coupling agent vinyltriethoxysilane 3Kg.
[0025] Preparation:
[0026] (1) Surface modification of calcium sulfate: Dissolve the coupling agent vinyltriethoxysilane in 250ml of absolute ethanol, stir at 45°C for 5 hours, repeat cleaning and suction filtration 5 times until the impurities are removed; then add 450ml of absolute ethanol to obtain a suspension; then add calcium sulfate, stir for 25 minutes, sonicate for 10 minutes, and stir for another 25 minutes; filter with absolute ethanol, wash 5 times, and then dry in a vacuum oven at 50°C for 24 hours to obtain dryness Modified anhydrous calcium sulfate;
[0027] (2) Put polylactic acid and the modified anhydrous calcium sulfate obtained in step (1) into a high-speed stirrer, and stir for 30 minutes at room temperature to obtain a mixture of modified anhydrou...
Embodiment 3
[0031] The weight ratio of the raw materials of the calcium sulfate-modified polylactic acid material in this embodiment is: polylactic acid (PLA) 17Kg, calcium sulfate 1Kg, coupling agent vinyltriethoxysilane 2Kg.
[0032] Preparation:
[0033] (1) Surface modification of calcium sulfate: Dissolve the coupling agent vinyltriethoxysilane in 250ml of absolute ethanol, stir at 45°C for 5 hours, repeat cleaning and suction filtration 5 times until the impurities are removed; then add 500ml of absolute ethanol to obtain a suspension; then add calcium sulfate, stir for 25 minutes, sonicate for 10 minutes, and stir for another 25 minutes; filter with absolute ethanol, wash 5 times, and then dry in a vacuum oven at 50°C for 24 hours to obtain dryness Modified anhydrous calcium sulfate;
[0034] (2) Put polylactic acid and the modified anhydrous calcium sulfate obtained in step (1) into a high-speed stirrer, and stir for 30 minutes at room temperature to obtain a mixture of modified ...
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, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com