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A kind of calcium carbonate modified vegetable fiber tableware for children and preparation method thereof

A plant fiber and calcium carbonate technology, applied in the field of tableware materials, can solve the problems of poor water resistance and impact resistance, and achieve the effects of low cost, not easy to crack, and increased bonding strength

Active Publication Date: 2022-08-02
安徽绿之态秸秆制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a calcium carbonate modified plant fiber children's tableware and its preparation method, which solves the defects of poor impact resistance and poor water resistance of traditional plant fiber children's tableware

Method used

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  • A kind of calcium carbonate modified vegetable fiber tableware for children and preparation method thereof
  • A kind of calcium carbonate modified vegetable fiber tableware for children and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A calcium carbonate modified vegetable fiber tableware for children, the raw materials of which include 70 parts by weight of composite fiber powder, 15 parts of food-grade calcium carbonate ultrafine powder, 2 parts of vegetable pectin, 1 part of shellac resin, 1 part of carboxymethyl chitosan and 1 part epoxy silane. The raw materials were taken and mixed well, preheated at 90° C. for 2 minutes, and then molded at 145° C. for 8 minutes under the conditions of a pressure of 30 MPa to obtain children’s tableware.

[0025] Among them, the composite fiber is made by mixing straw fiber and wood fiber, and the composite fiber powder is obtained by mixing the fiber raw materials with 5wt% malic acid solution, then treating at 40°C and 2MPa for 18h, and finally drying and grinding.

[0026] Wherein, food-grade calcium carbonate ultrafine powder is obtained by the following operations:

[0027] (1) one-time treatment: under the condition of stirring, the calcium carbonate slu...

Embodiment 2

[0030] A calcium carbonate-modified vegetable fiber tableware for children, the raw materials by weight include 80 parts of composite fiber powder, 20 parts of food-grade calcium carbonate ultrafine powder, 4 parts of vegetable pectin, 3 parts of shellac resin, 2 parts of carboxymethyl chitosan and 2 parts styrylsilane. The raw materials were taken and mixed, preheated at 95°C for 1.5 minutes, and then molded at 150°C under the conditions of 32 MPa for 6 minutes to obtain children's tableware.

[0031] Among them, the composite fiber is made by mixing straw fiber and bagasse fiber, and the composite fiber powder is obtained by mixing the fiber raw materials with 35wt% tartaric acid solution, then treating at 80°C and 5MPa for 10 hours, and finally drying and grinding.

[0032] Wherein, food-grade calcium carbonate ultrafine powder is obtained by the following operations:

[0033] (1) one-time treatment: under the condition of stirring, the calcium carbonate slurry that the so...

Embodiment 3

[0036] A calcium carbonate-modified vegetable fiber tableware for children, the raw materials of which include 90 parts by weight of composite fiber powder, 25 parts of food-grade calcium carbonate ultrafine powder, 5 parts of vegetable pectin, 5 parts of shellac resin, and 4 parts of carboxymethyl. base chitosan and 3 parts vinyl silane. The raw materials were taken and mixed, preheated at 100° C. for 1 min, and then molded at 155° C. for 0.5 min under the conditions of a pressure of 35 MPa to obtain children’s tableware.

[0037] Among them, the composite fiber is made by mixing bagasse fiber and bamboo pulp fiber, and the composite fiber powder is obtained by mixing the fiber raw materials with 70wt% malic acid solution, then treating at 120°C and 8MPa for 0.5h, and finally drying and grinding.

[0038] Wherein, food-grade calcium carbonate ultrafine powder is obtained by the following operations:

[0039] (1) one-time treatment: under the condition of stirring, the calciu...

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Abstract

The invention discloses a calcium carbonate-modified vegetable fiber tableware for children and a preparation method thereof. The raw materials include, by weight, 70-90 parts of composite fiber powder, 15-25 parts of food-grade calcium carbonate ultrafine powder, and 2-5 parts by weight. Plant pectin, 1-5 parts of shellac resin, 1-4 parts of carboxymethyl chitosan and 1-3 parts of silane coupling agent. The invention makes full use of the advantages of the plant fiber material itself, and by adding food-grade calcium carbonate ultrafine powder as a filler and cooperating with the use of other additives, the mechanical properties of the material are improved, the impact strength is improved, and the impact resistance is effectively prevented. It eliminates the adhesion of moisture and oil on the surface of the material and the penetration of the fiber wall cavity, so that the prepared tableware has high strength, is not easy to crack, is resistant to falling, has high surface gloss, and has outstanding water and oil resistance; in addition, the raw materials used are widely sourced, low in cost, and Green and environmentally friendly, non-toxic, very suitable for children's tableware.

Description

technical field [0001] The invention relates to the technical field of tableware materials, in particular to a calcium carbonate modified vegetable fiber children's tableware and a preparation method thereof. Background technique [0002] Plant fibers are derived from crop straws and fast-regenerating plants. They are inexhaustible renewable resources in nature. They have the advantages of high strength, natural and simple surface texture, bright colors and novel textures, and are suitable for multiple production. , Repeatedly used items can replace some plastic, glass, pottery, porcelain and other products, such as the most common tableware, plant fiber materials can be used to produce children's tableware due to the characteristics of environmental protection and non-toxicity. [0003] However, in the pulping process of plant fibers, many micropores will be formed on the surface of the cell wall, resulting in poor mechanical properties of tableware, especially poor impact ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L97/02C08L5/06C08L93/02C08L5/08C08K3/26C08K9/04
Inventor 刘海林崔巍潘杨笠刘和文赵原
Owner 安徽绿之态秸秆制品有限公司
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