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Preparation method and application of composite nanofiber material

A composite nanofiber and hydroxypropyl methylcellulose technology, which is applied in fiber treatment, detergent materials, fiber chemical characteristics, etc., can solve the problem of uneven release rate of active ingredients, inability to maintain toilet cleaning effect for a long time, easy clumping and Collapse and other problems, to achieve the effect of improving the uniformity of the release rate, ensuring the toilet cleaning effect, and slowing down the release rate

Active Publication Date: 2020-09-15
浙江海申新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the slow-release toilet block that only uses hydroxypropyl methylcellulose ether as the skeleton material has problems such as poor dispersion effect, insufficient mechanical strength, easy clumping and collapse, etc., resulting in the release speed of the active ingredients in the slow-release toilet block Unevenness affects the toilet cleaning effect and cannot maintain the toilet cleaning effect for a long time

Method used

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  • Preparation method and application of composite nanofiber material
  • Preparation method and application of composite nanofiber material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The preparation process of the composite nanofiber material: First, weigh 50g of polyvinyl alcohol powder and 50g of sodium alginate powder respectively, add 300mL of deionized water, heat in a constant temperature water bath at 70°C for 3 hours and stir to dissolve; then, add 150g of hydroxypropylmethyl Continue to stir the cellulose ether for 4 hours, cool to room temperature to obtain a colorless and transparent spinning solution, put the spinning solution into the feeding system, use an electrospinning device to process and prepare primary fibers, and then vacuum dry for 48 hours. The electrospinning parameters are: The voltage was 35kV, the solution flow rate was 2mL / h, and the receiving distance was 10cm; finally, the vacuum-dried primary fiber was placed in a closed oven for heat treatment at 110°C for 6h, and cooled to room temperature to obtain a composite nanofiber material.

[0023] Depend on figure 1 , 2 It can be seen that the fiber diameter distribution o...

Embodiment 2

[0027] The preparation process of the composite nanofiber material: First, weigh 50g of polyvinyl alcohol powder and 100g of sodium alginate powder respectively, add 400mL of deionized water, heat in a constant temperature water bath at 70°C for 3 hours and stir to dissolve; then, add 200g of hydroxypropylmethyl Continue to stir the cellulose ether for 4 hours, cool to room temperature to obtain a colorless and transparent spinning solution, put the spinning solution into the feeding system, use an electrospinning device to process and prepare primary fibers, and then vacuum dry for 48 hours. The electrospinning parameters are: The voltage was 35kV, the solution flow rate was 2mL / h, and the receiving distance was 10cm; finally, the vacuum-dried primary fiber was placed in a closed oven for heat treatment at 110°C for 6h, and cooled to room temperature to obtain a composite nanofiber material.

[0028] Application of composite nanofiber materials:

[0029] In terms of mass perc...

Embodiment 3

[0031] The preparation process of the composite nanofiber material: First, weigh 50g of polyvinyl alcohol powder and 150g of sodium alginate powder respectively, add 500mL of deionized water, heat in a constant temperature water bath at 70°C for 3 hours and stir to dissolve; then, add 250g of hydroxypropylmethyl Continue to stir the cellulose ether for 4 hours, cool to room temperature to obtain a colorless and transparent spinning solution, put the spinning solution into the feeding system, use an electrospinning device to process and prepare primary fibers, and then vacuum dry for 48 hours. The electrospinning parameters are: The voltage was 35kV, the solution flow rate was 2mL / h, and the receiving distance was 10cm; finally, the vacuum-dried primary fiber was heat-treated at 110°C for 6h in a closed oven, and cooled to room temperature to obtain a composite nanofiber material.

[0032] Application of composite nanofiber materials:

[0033] In terms of mass percentage, 32% Y...

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Abstract

The invention discloses a preparation method and application of a composite nanofiber material. The preparation method comprises the following steps of firstly, weighing polyvinyl alcohol powders andsodium alginate powders in proportion, adding deionized water, heating in a water bath and stirring and dissolving; adding hydroxypropyl methyl cellulose ether, continuously stirring for 4 hours, cooling to room temperature to obtain a colorless transparent spinning solution, loading the spinning solution into a feeding system, processing a primary fiber by an electrostatic spinning device, and performing vacuum drying for 48 hours; and finally, placing the vacuum dried primary fiber in a closed oven at 110 DEG C for 6 hours, and cooling to room temperature to obtain the composite nanofiber material. According to the preparation method and application of the composite nanofiber material, the preparation process is simple, the cost is low, and a slow-release toilet block prepared by the composite nanofiber material prepared by the method has the characteristics of being not prone to collapsing, long in the service life, uniform in the effective component release speed and good in the toilet cleaning effect.

Description

technical field [0001] The invention belongs to the fine chemical industry field of polymer materials, and in particular relates to a preparation method of a composite nanofiber material, and applies the composite nanofiber material to a slow-release toilet block. Background technique [0002] Sustained-release toilet block is a commonly used household toilet bowl cleaner. Because of its advantages of no irritating smell and low corrosion, it is more and more popular and used by people. Its cleaning effect and use time are its main factors. Two performance indicators. The slow-release toilet blocks currently on the market use sodium stearate or paraffin wax as the skeleton material. The former has insufficient hardness and weak slow-release ability, so it collapses into one piece quickly and dissolves quickly in the water tank, and the use time is short; The latter itself is insoluble in water, which will cause sodium stearate to form a discontinuous skeleton structure, so ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F8/02D01F8/10D01F8/18D01D5/00C11D1/83C11D3/04C11D3/10C11D3/08C11D3/20C11D3/37C11D3/22C11D3/40C11D3/60C11D17/00
CPCD01F8/02D01F8/10D01F8/18D01D5/003C11D1/83C11D3/046C11D3/10C11D3/08C11D3/201C11D3/3707C11D3/222C11D3/225C11D3/40C11D17/00C11D1/22C11D1/04C11D1/72
Inventor 葛志明
Owner 浙江海申新材料有限公司
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