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Waterborne viscosity increasing emulsion plays a very important role in waterborne acrylic pressure sensitive adhesive. It can improve the adhesive strength and initial viscosity of pressure sensitive adhesive on high and low energy surfaces, so as to achieve the best balance point and improve the application range and grade of pressure sensitive products.
Today we are going to show you the application of waterborne tacky emulsion in waterborne pressure sensitive adhesive.
Viscosity increasing emulsion plays a very important role in pressure sensitive adhesives. It plays an important role in improving the peel strength and initial viscosity of adhesives. According to different adhesive polymers, different thickening emulsions should be selected.
The waterborne rosin viscosity increasing emulsion is a rosin modified emulsion dispersion, which has 55% high solid content, 100% solvent free and no APE. It has a very narrow particle size distribution and a small average particle size, which is used to improve the adhesion performance of water-based pressure-sensitive adhesive / adhesive. And it has excellent low foam, storage and mechanical stability. It has excellent compatibility with acrylic acid, SBR, NR and other common polymers.
Waterborne tacky emulsion is mainly used in pressure sensitive adhesive, paper adhesive, industrial tape, film adhesive and other water-based adhesives.
New product recommendation:
NH series waterborne tacky emulsion
1、 Overview
This series of products is a high solid content emulsion made from modified rosin polyester and polymer surfactant. It is emulsified by special homogenization process. The product and preparation process do not use any organic solvent, and belong to green water viscosity increasing agent. Due to the use of polymer emulsifier, it has significant tackifying effect and wide compatibility, and can be widely used for tackifying or thickening of all kinds of water-based adhesives.
2、 Features
1. The unique high polymer surfactant makes the product have remarkable tackifying effect, good compatibility, wide compatibility and many suitable varieties.
2. Special emulsification process, narrow particle size distribution, stable quality, long storage period.
3. Rosin modified polyester is suitable for a wide pH value and can be used in near neutral or weak alkaline conditions.
4. low surface tension, small foam, uniform coating.
5. After adding, the initial viscosity, adhesion and peel strength can be increased obviously, and the best balance point can be achieved.
6. The preparation uses water as solvent, free of any organic solvent, green and environmental protection.
3、 Technical indicators
Model: nh-36 nh-136 nh-138 nh-39 nh-139
Appearance: white emulsion, white emulsion, brown viscous liquid white emulsion, white emulsion.
PH value: 5 ± 15 ± 19 ± 26 ± 26 ± 2
Solid content: 50 ± 2% 50 ± 2% 50 ± 2% 50 ± 2% 50 ± 2% 50 ± 2%
Particle size: ≤ 0.5 μ m ≤ 0.5 μ m ≤ 0.1 μ m ≤ 0.3 μ m ≤ 0.3 μ M
Ionic type: anion anion anion anion anion anion
Stability (25 ℃): three months, three months, twelve months, three months, three months
Hard water resistance: stable in hard water, stable in hard water, stable in hard water
4、 Compatibility
1. Acrylic: mutual compatibility
2. Styrene butadiene rubber (SBR): Compatibility
3. Chloroprene rubber (CR): mutual compatibility
4. Vinyl acetate copolymer (EVA): compatibilities
5. TPR (SIS, SBS, SEBS): mutual compatibility
6. NBR: Compatibility
7. Natural rubber (NR): mutual compatibility
8. Phenolic resin: mutual compatibility
5、 Application scope
It is suitable for a variety of solventless water emulsion adhesives, and can be widely used in pressure-sensitive label adhesives, laminating adhesives and other adhesives.
6、 How to use
1. Directly add the tackifier into the adhesive system in proportion, stir evenly, and the adding temperature shall not exceed 50 ℃.
2. The recommended dosage is 5-30%.
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