Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Compound chitin -potassium titanate crystal whisker membrane and preparation method thereof

A technology of potassium titanate whiskers and chitin whiskers, which is applied in the field of chitin-potassium titanate composite whisker films and its preparation, can solve the problem of not finding composite films made of chitin whiskers and potassium titanate whiskers Relevant research and other issues, to achieve excellent antibacterial, wide source, wide application effect

Inactive Publication Date: 2015-08-26
QINGDAO UNIV OF SCI & TECH
View PDF5 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In the prior art, there is no relevant research on the composite film made of chitin whiskers and potassium titanate whiskers

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Compound chitin -potassium titanate crystal whisker membrane and preparation method thereof
  • Compound chitin -potassium titanate crystal whisker membrane and preparation method thereof
  • Compound chitin -potassium titanate crystal whisker membrane and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Preparation of chitin-potassium titanate composite whisker film:

[0049] Take a beaker filled with 90mL of cold water at 20°C, slowly add 10mL of 15% polyvinyl alcohol into it and stir, after fully swelling, dispersing and volatile substances escape, transfer the 30mL solution in the beaker to the In a four-neck flask containing 10 g of potassium hexatitanate whiskers, the temperature of the water bath was gradually raised to 80°C, stirred for 30 minutes, transferred to a watch glass to dry, dried at 80°C for 3 hours, and cooled to room temperature to obtain polyvinyl alcohol modified Potassium hexatitanate whisker products.

[0050] Weigh 5.0g of chitin whiskers, add it to 95mL of 88% formic acid solution, ultrasonicate for 30min, disperse evenly, seal it, place it in -10℃ for 24h, take it out, and thaw it at room temperature; and perform another freeze-thaw operation , and then get chitin whisker colloid viscous liquid. The viscous solution was placed in a dialysis...

Embodiment 2

[0052] Preparation of chitin-potassium titanate composite whisker film:

[0053] Take a beaker containing 90mL of cold water at 22°C, slowly add 10mL of 15% PDMC into it and stir, after fully swelling, dispersing and volatile substances escape, transfer the solution in the 30mL beaker to a container containing 10g of six In a four-necked flask containing potassium titanate whiskers, the water bath was gradually heated to 85°C, stirred for 40 minutes, then transferred to a watch glass to dry, dried at 85°C for 2 hours, and cooled to room temperature to obtain PDMC-modified hexatitanic acid Potassium whisker products.

[0054] Weigh 5.0g of chitin whiskers, add it to 95mL of 88% formic acid solution, sonicate for 20min, disperse evenly, seal it, place it in -20℃ for 20h, take it out, and thaw it at room temperature; and perform another freeze-thaw operation , and then get chitin whisker colloid viscous liquid. The viscous solution was placed in a dialysis bag, and dialyzed wit...

Embodiment 3

[0056] Preparation of chitin-potassium titanate composite whisker film:

[0057] Take a beaker containing 90mL of cold water at 25°C, slowly add 12mL of 15% polyvinyl alcohol into it and stir, after fully swelling, dispersing and volatile substances escape, transfer the solution in the 30mL beaker to a container with In a four-necked flask containing 10 g of potassium hexatitanate whiskers, the temperature of the water bath was gradually raised to 82°C, stirred for 30 minutes, transferred to a watch glass to dry, dried at 75°C for 4 hours, and cooled to room temperature to obtain polyvinyl alcohol modified Potassium hexatitanate whisker products.

[0058] Weigh 5.0g of chitin whiskers, add them to 95mL of 88% formic acid solution, ultrasonicate for 40min, disperse evenly, seal, place in -15°C for 26h, take out, and thaw at room temperature; times, and then obtain chitin whisker colloid viscous liquid. The viscous solution was placed in a dialysis bag, and dialyzed with deion...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
breaking strengthaaaaaaaaaa
breaking strengthaaaaaaaaaa
Login to View More

Abstract

The invention relates to a compound chitin -potassium titanate crystal whisker membrane. The compound chitin -potassium titanate crystal whisker membrane is mainly prepared from the following raw materials: 3-7wt% of chitin crystal whiskers, 1-5wt% of potassium titanate whiskers, and the balance of a formic acid solution. A preparation method of the compound chitin -potassium titanate crystal whisker membrane comprises the following steps: compounding the formic acid solution of which the chitin crystal whisker concentration is 3-7wt%, after uniformly mixing, sealing the compounded formic acid solution, leaving the sealed formic acid solution to stand at the temperature of (-20)-(-3) DEG C for 20-30 hours' refrigeration, and then unfreezing the refrigerated formic acid solution at a room temperature; placing the obtained colloid viscous liquid in a dialysis bag, and dialyzing the colloid viscous liquid with water to obtain the effluent of which the pH value is 6-7; adding polyvinyl alcohol or the potassium titanate whiskers modified with PDMC in a chitin crystal whisker suspending liquid obtained after dialysis, so that the concentration of the potassium titanate whiskers is 1-5wt%, and then, uniformly mixing the polyvinyl alcohol or the potassium titanate whisker and the chitin crystal whisker suspending liquid; dripping the uniformly mixed colloid viscous liquid to a glass plate to enable the colloid to be uniform and form a membrane, and drying the membrane by baking; putting the glass plate with the membrane in an NaOH solution, soaking and forming the glass plate, washing the soaked and formed glass plate with clean water to ensure that the glass plate is neutral, and drying the neutral glass plate by baking for standby application. According to the compound chitin -potassium titanate crystal whisker membrane disclosed by the invention, the raw materials(namely chitin) are wide in sources, non-toxic and harmless; the preparation technology is simple, and the cost is low; the compound chitin -potassium titanate crystal whisker membrane is strong in stretching performance, that is, the stretching performance of the compound chitin -potassium titanate crystal whisker membrane is 1.84 times of that of a simple chitin crystal whisker membrane.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a chitin-potassium titanate composite whisker film and a preparation method thereof. Background technique [0002] Today, when resources are scarce and environmental pollution is becoming more and more serious, the development and utilization of renewable resources and environmentally friendly materials have received more and more attention. Chitin is an abundant renewable resource on the earth, and it is also a biodegradable material, so the modification and development of chitin has gradually become a research hotspot. The internal molecular chain of chitin has good regularity and strong rigidity, which enables chitin to easily form strong intramolecular and intermolecular hydrogen bonds, so chitin has a good crystal structure. [0003] Whiskers are a type of high-purity fibrous single crystals grown under artificially controlled conditions using crystall...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C08L5/08C08K9/04C08K7/08C08J5/18C08J3/21
Inventor 刘娟李沁国肖宫雪
Owner QINGDAO UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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