Water-based high-solid antistatic coating and preparation method thereof

A high-solids, antistatic technology, applied in the field of coating science, can solve the problems of affecting the conductivity and physical properties of the coating, not easy to generate a homogeneous system, and insufficient fullness of the paint film, and achieve good hand and fullness. Antistatic properties, durable color and yellowing effect

CN104403543BInactive Publication Date: 2016-08-17广州益景春环保材料科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2016-08-17
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a water-based high-solid antistatic coating and a preparation method thereof. The coating comprises the following raw materials: hydroxyl polyurethane resin, conductive filler, functional powder, a functional additive, a coalescing agent, a pH modifier and the balance of water; the functional powder comprises carboxyl polyester resin with the acid value greater than 100, carboxyl polyester resin with the acid value of 25 to 100, and carboxyl polyester resin with the acid value smaller than 25, wherein the weight ratio of the three kinds of carboxyl polyester resin is (1-2):(1-2):(1-2). The water-based high-solid antistatic coating is characterized in that hydroxyl polyurethane water-base resin, water-based conductive filler and carboxyl polyester resin powder different in acid value gradient are compounded into a whole through cross-linking reaction, so that a compact film can be formed. The film formed by the coating has high solid content and good antistatic performance, has good chemical resistance, water resistance and excellent physical properties at the same time, and can be applied to the field of packaging and electromagnetic shielding of electronic products, furniture and the like.
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Description

technical field

[0001] The invention belongs to the field of paint science and technology, in particular to a water-based high-solid antistatic paint and a preparation method thereof. Background technique

[0002] In recent years, a large number of electronic products have been damaged by static electricity every year, and the loss has reached more than 10 billion US dollars. As far as furniture is concerned, especially in the dry autumn and winter seasons, static electric shocks are prone to numbness, and furniture is also easily stained and dirty due to electrostatic adsorption.

[0003] Oil-based paint products contain a large amount of benzene, toluene, xylene and their derivatives, which have high VOC emissions and directly endanger human health. Heavy pollution and serious damage to the environment. Oil-based paint is a highly flammable item, and there are great safety hazards in the process of storage and transportation. With the promulgation of relevant laws and r...

Examples

Embodiment 1

[0028] Embodiment 1 water-based high solid antistatic coating

[0029] In this embodiment, a water-based high-solid antistatic coating comprises the raw material components in the following mass percentages as shown in Table 1:

[0030] The water-based high solid content antistatic coating material of table 1 embodiment 1

[0031]

[0032]

[0033]

[0034] The specific preparation steps of the water-based high-solid antistatic coating of the present embodiment are as follows:

[0035] First, add hydroxyl polyurethane resin and functional additives into the reactor at room temperature and stir for 15 minutes to fully emulsify, then add functional powder and conductive fillers to the reactor in sequence, stir at 1500rpm, and disperse at high speed to obtain a uniformly dispersed emulsion. The film-forming aid, pH regulator and water are added to the reactor to adjust the pH and viscosity of the system, and the water-based high-solid antistatic coating is obtained afte...

Embodiment 2

[0036] Embodiment 2 water-based high solid antistatic coating

[0037] This embodiment is a kind of water-based high-solid antistatic coating, and the raw material components comprising the following mass percentages are shown in Table 2:

[0038] The water-based high solid content antistatic coating raw material of table 2 embodiment 2

[0039]

[0040]

[0041] The specific preparation method of the water-based high-solid antistatic coating of this embodiment is the same as that of Embodiment 1.

Embodiment 3

[0042] Embodiment 3 water-based high solid antistatic coating

[0043] The present embodiment is a kind of water-based high-solid antistatic coating, and the raw material components comprising the following mass percentages are shown in Table 3:

[0044] The water-based high solid content antistatic coating material of table 3 embodiment 3

[0045]

[0046]

[0047]

[0048] The specific preparation method of the water-based high-solid antistatic coating of this embodiment is the same as that of Embodiment 1.