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Preparation method for water-soluble cellulose acetate propionate mould-pressing and aluminium-plating emulsion

A technology of cellulose acetate propionate and molding aluminum plating is applied in the chemical field, which can solve the problems of polluting the environment and a large number of organic solvents, and achieves the effects of wide application, good peelability and good aluminum plating adhesion.

Inactive Publication Date: 2013-08-21
上海百道成新材料科技有限公司
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Problems solved by technology

[0003] In order to solve the above-mentioned technical problems in the prior art, the invention provides a kind of preparation method of water-soluble cellulose acetate propionate molded aluminized emulsion, the preparation of described this water-soluble cellulose acetate propionate molded aluminized emulsion The method solves the technical problem of requiring a large amount of organic solvents and polluting the environment in the process of preparing cellulose acetate propionate in the prior art

Method used

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Embodiment 1

[0012] The invention provides a method for preparing a water-soluble cellulose acetate propionate molded aluminum-plating emulsion, comprising a step of weighing each substance according to the weight ratio, and the substances are cellulose acetate propionate, methyl methacrylate, Butyl methacrylate, ethyl acrylate, dicyclopentadienyl acrylate, acrylic acid and N-hydroxyethyl acrylamide, the weight ratio of the above substances is 40-60:40-60:15-25:8-12: 3-8: 3-8: 5-15, also includes a step of preparing the premixed solution, in the step of preparing the premixed solution, put the cellulose acetate propionate and the organic solvent into the reaction kettle and mix first, Then mix the initiator and part of the monomers and add them at once, raise the temperature to 80-90°C for 1.5-2.5 hours, and stir at a speed of 180-200 rpm; a step of preparing a pre-emulsion is also included. In the step of preparing the pre-emulsion, the nonionic emulsifier and the anionic emulsifier are f...

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Abstract

The invention discloses a preparation method for water-soluble cellulose acetate propionate mould-pressing and aluminium-plating emulsion. The preparation method comprises a step of weighing the substances of cellulose acetate propionate, methyl methacrylate, butyl methacrylate, ethyl acrylate, dicyclopentadienyl acrylate, acrylic acid and N-hydroxyethyl acrylamide in a weight ratio, a step of preparing a pre-mixing solution, namely, performing mixed reaction on cellulose acetate propionate, an organic solvent, an initiator and a part of monomers, and a step of preparing pre-emulsion, namely, mixing a non-ionic emulsifier with an anionic emulsifier at first, and then adding the remainder substances to prepare the pre-emulsion, adding the pre-emulsion in a reaction kettle to react after the initiator is completely dissolved, dropwise adding ammonia water to neutralize, and finally diluting until the solid content is 35%, and then cooling and discharging. With the adoption of the preparation method disclosed by the invention, the problem of discharge for volatile organic compounds is solved; and the obtained product is good in water resistance after being dried, and improved in hardness, glossiness and plasticity after film-forming.

Description

technical field [0001] The invention belongs to the field of chemical industry, in particular to a water-soluble cellulose acetate propionate, in particular to a water-soluble cellulose acetate propionate molded aluminized emulsion, specifically a water-soluble cellulose acetate propionate molded aluminized Method for the preparation of the emulsion. Background technique [0002] Cellulose acetate propionate (CAP) has the advantages of stable heat resistance, good film-forming properties, excellent toughness, good alignment of gold and silver powder, good adhesion to aluminum plating, etc., but has disadvantages such as low gloss and poor solvent resistance, and Insoluble in water, it consumes a lot of organic solvents when used, which is not good for environmental protection. Contents of the invention [0003] In order to solve the above-mentioned technical problems in the prior art, the invention provides a kind of preparation method of water-soluble cellulose acetate p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F251/02C08F220/14C08F220/18C08F220/40C08F220/06C08F220/58C08F2/26C08F2/30
Inventor 黄世伟黄世容杨新峰谭珍何琴
Owner 上海百道成新材料科技有限公司
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