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Plastic-free waterproof oil-proof water-based emulsion and preparation method thereof

An oil-water-based, emulsion technology, applied in textiles and papermaking, non-fiber pulp addition, papermaking, etc., can solve the problems of strong bioaccumulation, high production costs, unfavorable promotion, etc., to improve efficiency, excellent water and oil resistance, and solve the problem of plastics pollution effect

Pending Publication Date: 2021-08-06
格润纳(中山)科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the waterproof and oil-repellent effect is excellent, such waterproof and oil-repellent agents are usually polymers containing perfluoroalkyl groups, which have the disadvantages of strong bioaccumulation and refractory degradation. Toxicity, especially prohibited in the field of food packaging, and high production costs, which is not conducive to the promotion of products

Method used

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  • Plastic-free waterproof oil-proof water-based emulsion and preparation method thereof
  • Plastic-free waterproof oil-proof water-based emulsion and preparation method thereof

Examples

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Effect test

Embodiment 1

[0022] A method for preparing a plastic-free waterproof and oil-repellent aqueous emulsion, comprising the following steps:

[0023] S1. Preparation of pre-emulsion: add 15 parts of methacrylate, 10 parts of styrene hard monomer, 0.25 parts of op-10 and sodium lauryl sulfate to 10 parts of water, in a high-speed homogeneous emulsifier, the stirring speed At 2000r / min, emulsify into nucleated pre-emulsion A; also add 2 parts of methacrylic acid, 15 parts of methacrylate soft monomer, 0.25 parts of op-10 and 10 parts of sodium lauryl sulfate to emulsify the shell Monomer Pre-emulsion B.

[0024] S2. Preparation of polymerization stock solution: Take 0.25 parts of APS100, 0.25 parts of sodium bicarbonate and appropriate amount of nanocellulose in a reaction kettle, add 20 parts of water, stir and dissolve at 50°C, and prepare solution C. Weigh 0.25 parts of ammonium persulfate, dissolve it in deionized water to prepare initiator solution D, and put it in a refrigerator for later...

Embodiment 2

[0028] A method for preparing a plastic-free waterproof and oil-repellent aqueous emulsion, comprising the following steps:

[0029] S1. Preparation of pre-emulsion: add 20 parts of methacrylate, 15 parts of styrene hard monomer, 0.5 parts of op-10, and sodium lauryl sulfate to 10 parts of water, and in a high-speed homogeneous emulsifier, the stirring speed At 2000r / min, emulsify into nucleated pre-emulsion A; also add 3 parts of methacrylic acid, 20 parts of methacrylate soft monomer, 0.3 parts of op-10 and sodium lauryl sulfate to 10 parts of water to emulsify the shell Monomer Pre-emulsion B.

[0030] S2. Preparation of stock solution for polymerization reaction: Take 0.3 parts of APS100, 0.3 parts of sodium bicarbonate and appropriate amount of nanocellulose in a reaction kettle, add 20 parts of water, stir and dissolve at 50°C, and prepare solution C; weigh 0.3 parts Ammonium persulfate was dissolved in deionized water to prepare initiator solution D, which was put into...

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Abstract

The invention discloses a plastic-free waterproof and oil-proof water-based emulsion and a preparation method thereof, and the plastic-free waterproof and oil-proof water-based emulsion comprises the following components in parts by mass: 10-30 parts of styrene, 15-45 parts of methacrylate, 15-45 parts of methacrylate, 1-5 parts of methacrylic acid, 0.5-2 parts of an emulsifier, 0.25-1.5 parts of a protective agent, 0.25-1 part of an initiator and 30-50 parts of deionized water. The plastic-free emulsion disclosed by the invention has waterproof and oil-proof functions after being coated on the surface of paper, can be used as food packaging paper, and compared with coated paper, the plastic-free paper can be recycled by 100%, a large amount of energy and cost treatment are not needed in the recycling process, the cost is saved, the benefit is greatly improved, and the problem of plastic pollution is solved.

Description

technical field [0001] The invention relates to the technical field of preparation of a plastic-free waterproof and oil-repellent water-based emulsion, in particular to a plastic-free waterproof and oil-proof water-based emulsion and a preparation method thereof. Background technique [0002] With the rapid development of society and the enhancement of people's awareness of environmental protection, laws and regulations on plastic restriction and ban in various countries have been promulgated one after another, and paper packaging has become a research hotspot. Paper packaging is one of the largest packaging materials used in catering, food, medical packaging and other fields. Since it is in contact with food containing oil, fat or water, paper packaging must be waterproof, oil-proof and impermeable. [0003] In order to obtain the waterproof and oil-proof effect, most of the current paper packaging is coated with a thin layer of polyethylene plastic on the paper to form a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F265/06C08F220/10C08F220/06C08F2/26C08F2/30D21H21/14
CPCC08F265/06C08F2/26C08F2/30D21H21/14C08F220/10C08F220/06
Inventor 张赶年李蔚陈觉凯
Owner 格润纳(中山)科技有限公司