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Bagasse calcium phosphate composite material as well as preparation method and application thereof

A technology of bagasse phosphate and composite materials, which is applied in the fields of nursing care, dental care, daily chemicals, and cleaning products, and can solve the problem of preventing calcium phosphate solid particles from cleaning between teeth, reducing the anti-sensitivity performance of calcium phosphate abrasives, and hindering Solve problems such as calcium phosphate inorganic solid particles, achieve excellent biocompatibility, improve cleaning performance, and maintain biocompatibility

Active Publication Date: 2022-07-29
YUNNAN BAIYAO GRP HEALTH PROD CO LTD +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the production cost of calcium phosphate inorganic solid particles is relatively high. Usually, the solid particles directly prepared by precipitation method have a large particle size, which hinders the cleaning effect of calcium phosphate solid particles on the interdental spaces, and also hinders the use of calcium phosphate inorganic solid particles. Particles enter the dentinal tubules, reducing the anti-sensitivity properties of calcium phosphate abrasives
In addition, slightly soluble calcium phosphate inorganic substances will also cause eutrophication pollution to water bodies

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037]The preparation method of the bagasse calcium phosphate composite material provided by the present embodiment comprises the following steps:

[0038] 1) Weigh 100g of bagasse powder and place it in a round-bottomed flask, add 400g of phosphoric acid with a concentration of 38%, heat to 90°C, and react for 4h;

[0039] 2) Add 114.8 g of calcium hydroxide, react at 80°C for 1 hour, and adjust the pH of the system to 7.0 with an aqueous calcium hydroxide solution after the reaction;

[0040] 3) Centrifuge at 1000 r / min for 5 min, the obtained solid phase is dried in a drying oven at 105° C. for 2 h, ground, and passed through an 80-mesh sieve to obtain a bagasse calcium phosphate composite material.

Embodiment 2

[0042] The preparation method of the bagasse calcium phosphate composite material provided by the present embodiment comprises the following steps:

[0043] 1) Weigh 100g of powder into a round-bottomed flask, add 300g of phosphoric acid with a concentration of 60%, heat to 80°C, and react for 3h;

[0044] 2) Add 140 g of calcium hydroxide, continue the reaction at 70°C for 2 hours, and adjust the pH of the system to 7.2 with an aqueous calcium hydroxide solution after the reaction;

[0045] 3) Centrifuge at 1000 r / min for 10 min, the obtained solid is dried in a drying oven at 105° C. for 2 h, ground, and passed through a 100-mesh sieve to obtain a bagasse calcium phosphate composite material.

Embodiment 3

[0047] The preparation method of the bagasse calcium phosphate composite material provided by the present embodiment comprises the following steps:

[0048] 1) Weigh 100g of powder into a round-bottomed flask, add 400g of phosphoric acid with a concentration of 80%, heat to 85°C, and react for 3h;

[0049] 2) Add 151 g of calcium hydroxide, continue the reaction at 90°C for 3 hours, and adjust the pH of the system to 7.3 with an aqueous calcium hydroxide solution after the reaction;

[0050] 3) Centrifuge at 1000 r / min for 10 min, the obtained solid is dried in a drying oven at 105° C. for 3 h, ground, and passed through a 100-mesh sieve to obtain a bagasse calcium phosphate composite material.

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Abstract

The embodiment of the invention discloses a bagasse calcium phosphate composite material as well as a preparation method and application thereof. The preparation method comprises the following steps: taking bagasse as a raw material, sequentially carrying out phosphate esterification reaction and calcium hydroxide neutralization reaction, and then carrying out centrifugal separation, drying and grinding to obtain the bagasse calcium phosphate composite material. According to the bagasse calcium phosphate core-shell composite material prepared by taking bagasse as a raw material, the cleaning performance, the elasticity and the sensitivity resistance of a calcium phosphate abrasive are improved, excellent biocompatibility is kept, in addition, the composite material is applied to an oral care product, the usage amount of the calcium phosphate abrasive can be reduced, and the service life of the oral care product is prolonged. Meanwhile, pollution caused by bagasse and calcium phosphate inorganic salt is reduced.

Description

technical field [0001] The embodiments of the present invention relate to the technical fields of daily chemicals, oral medicine, nursing and cleaning products, and in particular, to a bagasse calcium phosphate composite material and a preparation method and application thereof. Background technique [0002] Calcium phosphate inorganic solid particles and their hydrates are toothpaste abrasives with the best taste and biocompatibility. Among them, the elemental composition of calcium hydrogen phosphate dihydrate, tricalcium phosphate and hydroxyapatite is similar to that of tooth enamel surface. The toothpaste prepared by using the above abrasive has a unique and delicate taste, and has outstanding performance in remineralization of enamel and anti-sensitivity of dentin. However, the production cost of calcium phosphate-based inorganic solid particles is relatively high, and the particle size of the solid particles directly prepared by the precipitation method is usually lar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/9789A61K8/24A61Q11/00A61P31/02A61P31/12
CPCA61K8/9789A61K8/24A61Q11/00A61P31/02A61P31/12A61K2800/28
Inventor 宁科功高峰张秋林郭家文孔祥烨蔡英尚慧潘波
Owner YUNNAN BAIYAO GRP HEALTH PROD CO LTD
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