Rapid curing of reactive low-odor amine catalyst ZR-70 in environmentally friendly coatings

March 7, 2025by admin0

Rapid curing of reactive low-odor amine catalyst ZR-70 in environmentally friendly coatings

Introduction

With the increasing awareness of environmental protection and the increasingly strict environmental protection regulations, environmentally friendly coatings are becoming more and more widely used in the fields of construction, automobiles, furniture, etc. Environmentally friendly coatings not only require low VOC (volatile organic compounds) emissions, but also require excellent properties such as rapid curing, good adhesion, weather resistance, etc. As a new environmentally friendly catalyst, the reactive low-odor amine catalyst ZR-70 has shown excellent rapid curing performance in environmentally friendly coatings, becoming the focus of industry attention.

This article will introduce the product parameters, working principles, application advantages of ZR-70 and its rapid curing mechanism in environmentally friendly coatings in detail, and help readers to fully understand this innovative product through tables and data comparisons.

1. ZR-70 product parameters

ZR-70 is a highly efficient reactive low-odor amine catalyst designed for environmentally friendly coatings. The following are its main product parameters:

Parameters	Value/Description
Chemical Name	Reactive low-odor amine catalyst
Appearance	Colorless to light yellow transparent liquid
Density (25°C)	1.02 g/cm³
Viscosity (25°C)	50-100 mPa·s
Flashpoint	>100°C
odor	Extremely low, almost no irritating odor
Solution	Easy soluble in water, alcohols and most organic solvents
Recommended additions	0.1%-1.0% (based on the total weight of the coating)
Applicable temperature range	5°C-40°C
Storage Stability	12 months (sealed, cool and dry place)

2. Working principle of ZR-70

The core function of ZR-70 is to accelerate the cross-linking reaction between resin and curing agent in the coating through catalytic reaction, thereby achieving rapid curing. Its working principle mainly includes the following aspects:

Catalytic Activity
ZR-70 molecules contain highly active amine groups, which can react with epoxy groups or isocyanate groups in the coating, significantly reducing the reaction activation energy and thereby accelerating the curing process.
Low Odor Characteristics
ZR-70 has undergone special process treatment to remove volatile components in traditional amine catalysts, so that it produces almost no irritating odor during the curing process, and meets environmental protection requirements.
Response Selectivity
ZR-70 is highly selective for the reaction between resin and curing agent, and can achieve efficient catalysis at lower temperatures, while avoiding side reactions and ensuring the stability of coating performance.
Environmental Adaptation
ZR-70 can maintain efficient catalytic activity within a wide temperature range (5°C-40°C), and is suitable for construction environments under different climatic conditions.

III. Advantages of ZR-70 in environmentally friendly coatings

The application of ZR-70 in environmentally friendly coatings has significant advantages, which are mainly reflected in the following aspects:

1. Rapid curing

ZR-70 can significantly shorten the curing time of the coating and improve construction efficiency. The following is the curing time comparison between ZR-70 and traditional catalysts:

Catalytic Type	Photo dry time (25°C)	Practical Work Time (25°C)
ZR-70	15-30 minutes	2-4 hours
Traditional amine catalysts	30-60 minutes	4-8 hours
Catalyzer-free	2-4 hours	8-12 hours

2. Low VOC emissions

The low odor characteristics of ZR-70 make it hardly produce VOC during the curing process, comply with environmental protection regulations and are suitable for a variety of indoor and outdoor scenarios.

3. Excellent coating performance

The coating produced by ZR-70 catalyzed has the following characteristics:

High gloss
Excellent adhesion
Good weather resistance and chemical resistance
Uniform surface effect

4. Construction convenience

The wide temperature adaptability of ZR-70 allows it to maintain efficient catalytic activity under different climatic conditions, reducing the limitations of the construction environment.

IV. Rapid curing mechanism of ZR-70 in environmentally friendly coatings

The rapid curing mechanism of ZR-70 is mainly based on its efficient catalytic activity and reaction selectivity. The following is a detailed analysis of its curing process:

1. Catalytic reaction process

ZR-70 catalyzes the crosslinking reaction of the resin and the curing agent through the following steps:

Adhesion stage: ZR-70 molecules are adsorbed on the surface of the resin to form an active center.
Activation stage: The amine group of ZR-70 reacts with the epoxy group or isocyanate group in the resin to reduce the reaction activation energy.
Crosslinking stage: The resin and the curing agent are rapidly cross-linked under the catalysis of ZR-70 to form a three-dimensional network structure.
Currecting completion: The coating film reaches the surface dry and hard state, and has excellent physical and chemical properties.

2. Effect of temperature on curing speed

The curing speed of ZR-70 at different temperatures is shown in the following table:

Temperature (°C)	Show drying time	Practical time
5	45-60 minutes	6-8 hours
15	30-45 minutes	4-6 hours
25	15-30 minutes	2-4 hours
35	10-20 minutes	1.5-3 hours

3. Effect of addition amount on curing performance

The amount of ZR-70 added has a significant impact on the curing speed of the coating and the performance of the coating. The following is a performance comparison under different addition amounts:

Addition (%)	Show drying time	Practical time	Coating gloss	Adhesion (level)
0.1	40 minutes	6 hours	85	1
0.5	20 minutes	3 hours	90	0
1.0	15 minutes	2 hours	92	0

V. Application cases of ZR-70

1. Building paint

The application of ZR-70 in architectural coatings significantly improves construction efficiency, especially in low temperature environments, and can maintain rapid curing. For example, after using ZR-0.5% ZR-70 for a building exterior wall paint, the surface drying time is shortened from 60 minutes to 20 minutes, and the practical drying time is shortened from 8 hours to 3 hours.

2. Automotive paint

In automotive coatings, ZR-70 not only improves coating efficiency, but also significantly improves the gloss and weather resistance of the coating film. After a certain automotive paint manufacturer used the ZR-70, the gloss of the coating film increased from 85 to 92, and the weather resistance test results increased by 20%.

3. Furniture paint

The use of ZR-70 in furniture coatings makes it excellent in low odor and rapid curing, especially suitable for the painting needs of interior furniture. After using ZR-70 for a certain furniture paint, VOC emissions were reduced by 30% and curing time was reduced by 50%.

VI. ZR-70’s future development prospects

With the increasing strict environmental regulations and the increasing demand for high-performance products in the coatings industry, ZR-70, as an efficient and environmentally friendly catalyst, has broad market prospects. In the future, the ZR-70 is expected to make greater breakthroughs in the following areas:

Development of New Environmentally Friendly Coatings: The low VOC characteristics of ZR-70 make it an ideal choice for the development of new environmentally friendly coatings.
Intelligent coating technology: The rapid curing characteristics of ZR-70 can be combined with intelligent coating equipment to further improve production efficiency.
Application of multifunctional coatings: The high catalytic activity of ZR-70 provides technical support for the development of multifunctional coatings (such as antibacterial coatings, self-cleaning coatings).

Conclusion

Reactive low-odor amine catalyst ZR-70 has become an important innovative product in the field of environmentally friendly coatings due to its advantages of rapid curing, low VOC emissions, and excellent coating performance. Through the detailed introduction of this article, I believe that readers have a comprehensive understanding of the product characteristics, working principles and application advantages of ZR-70. In the future, the ZR-70 will continue to promote the development of the environmentally friendly coating industry and inject new vitality into green coating technology.