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Konjak gulcomannan closestool gasket and preparation method thereof

A glucomannan toilet and gasket technology, applied in the field of daily necessities, can solve the problems of difficult molding of toilet gasket materials, high requirements on manufacturing precision, poor material degradability, etc., and achieves good antifouling performance, low cost, and improved product performance.

Inactive Publication Date: 2017-06-20
FUJIAN AGRI & FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the toilet gasket material is difficult to form, requires high manufacturing precision, and has poor material degradation

Method used

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  • Konjak gulcomannan closestool gasket and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment 1, a kind of preparation method of konjac glucomannan toilet seat, comprises the following steps:

[0019] (1) Preparation of carboxymethylated mung bean starch: According to the mass components, take 35 parts of mung bean starch and 20 parts of sodium hydroxide, add 170 parts of ethanol solution with a volume ratio of 95%, and place in a constant temperature water bath at 45 °C Stir in the pot at 350r / min for 50min; then add 12 parts of chloroacetic acid, adjust the pH to 7 with 1mol / L hydrochloric acid solution; place it in a constant temperature water bath at 45°C and stir at 350r / min for 1.5h, filter, After washing with an ethanol solution with a volume ratio of 95%, put it into an oven at 55° C. to dry to obtain carboxymethylated mung bean starch, which is set aside;

[0020] (2) Preparation of composite gel solution: Take 30 parts of konjac glucomannan and 11 parts of carboxymethylated mung bean starch obtained in step (1), add 700 parts of water, place...

Embodiment 2

[0023] Embodiment 2, a kind of preparation method of konjac glucomannan toilet seat, comprises the following steps:

[0024] (1) Preparation of carboxymethylated mung bean starch: according to the mass components, take 30 parts of mung bean starch and 15 parts of sodium hydroxide, add 140 parts of ethanol solution with a volume ratio of 95%, and place in a constant temperature water bath at 40 °C Stir in the pot at 300r / min for 45min; then add 10 parts of chloroacetic acid, adjust the pH to 6.5 with 1mol / L hydrochloric acid solution; place it in a constant temperature water bath at 40°C and stir at 300r / min for 1h, filter, and use After being washed with an ethanol solution with a volume ratio of 95%, put it into an oven at 50° C. to dry to obtain carboxymethylated mung bean starch for subsequent use;

[0025] (2) Preparation of composite gel solution: take 25 parts of konjac glucomannan and 10 parts of carboxymethylated mung bean starch obtained in step (1), add 600 parts of ...

Embodiment 3

[0028] Embodiment 3, a kind of preparation method of konjac glucomannan toilet seat, comprises the following steps:

[0029] (1) Preparation of carboxymethylated mung bean starch: according to the mass components, take 40 parts of mung bean starch and 25 parts of sodium hydroxide, add 200 parts of ethanol solution with a volume ratio of 95%, and place in a constant temperature water bath at 50 °C Stir in the pot at 400r / min for 55min; then add 14 parts of chloroacetic acid, adjust the pH to 7.5 with 1mol / L hydrochloric acid solution; place it in a constant temperature water bath at 50°C and stir at 350r / min for 1.5h, filter, After washing with an ethanol solution with a volume ratio of 95%, put it into an oven at 60° C. to dry to obtain carboxymethylated mung bean starch, which is set aside;

[0030] (2) Preparation of composite gel solution: Take 35 parts of konjac glucomannan and 12 parts of carboxymethylated mung bean starch obtained in step (1), add 800 parts of water, pla...

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Abstract

The invention relates to a konjak gulcomannan closestool gasket and a preparation method thereof. The preparation method for the konjak gulcomannan closestool gasket comprises the following steps: preparing carboxymethylation green bean starch, preparing compound gel solution, centrifugally degassing and preparing the konjak gulcomannan closestool gasket. According to the invention, the konjak gulcomannan closestool gasket is prepared by taking the konjak gulcomannan as a main material and the carboxymethylation green bean starch as an auxiliary material. The konjak gulcomannan has excellent plasticity, water resistance and biodegradability. The carboxymethylation green bean starch has the characteristics of thickening, water resistance, adherence and film forming. The combination of the konjak gulcomannan and the carboxymethylation green bean starch can enhance the stability of the konjak gulcomannan and can greatly improve the product property. The invention has the advantages of simple process, low cost, nontoxic and harmless prepared closestool gasket, and the like.

Description

technical field [0001] The invention relates to a sanitary product and a preparation method thereof, in particular to a konjac glucomannan toilet gasket and a preparation method thereof, belonging to the field of daily necessities. Background technique [0002] The toilet gasket is between the toilet lid and the toilet. In order to prevent the skin from directly contacting the toilet body, the toilet gasket is used to prevent infectious diseases and maintain hygiene. Toilet washers are one of the commonly used bathroom products and have become an indispensable item in our daily life. [0003] Currently commercially available toilet washers are generally made of acrylonitrile-butadiene-styrene copolymer (ABS), polypropylene (PP), urea-formaldehyde resin (UF) and other plastic materials. The toilet gasket made of ABS has high mechanical strength, good durability, is not easy to age, and is easy to process and form a thermoplastic polymer material structure, but it will decomp...

Claims

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Application Information

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IPC IPC(8): C08L5/02C08L3/08
CPCC08L5/02C08L2201/06C08L2201/08C08L3/08
Inventor 庞杰王林倪永升吴佳煜袁毅穆若郡刘子奇龚静妮洪馨
Owner FUJIAN AGRI & FORESTRY UNIV
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