Let Pearl sparkle in the package

"Coupling agent is a pearl in additives," which is an industry expert's comment. This was a strange term in the plastics, inks, coatings, and rubber industries before the 1990s. By the end of the 20th century, China began to apply in the above industries. Its coupling agents ranged from silane to titanate, zirconate, and aluminum-titanium composites to the development of boric acid and aluminum zirconium composite series for our packaging plastic products and printing. The quality of inks, coatings, pigments, compound adhesives, etc. can be referred to as miracles in the additive series in terms of improving the quality, shortening the production time, and increasing the utilization of resources.

Tianyang Chemical Factory is facing the toughest domestic and foreign manufacturers, adhering to cutting-edge technologies and developing marketable products. The plastics, pigments, paper, and inks that are already in the electronics, automotive, construction, and packaging industries. Titanate series have been introduced in coatings, rubbers, rubbers, etc. to improve processability and increase the amount of fillers. For silica fillers and glass products, silane series were introduced to strengthen the composite material. The product's dispersion, inorganic and organic bridging modification and flexibility, has a good coupling effect, is playing an important role in the composite packaging and printing products plastics, pigments, inks, paper, magnetic materials, etc. Roles, for these industries we have to save energy, improve ergonomics, improve quality, reduce costs and other targets can not be achieved, and become the industry's only country-free products.

In order to obtain a firm adhesive interface layer between the ink, paint, adhesive, coating oil system, and the surface of the adhesive, printing, and coating material, a coupling agent containing a reactive group is often used for the above printing. Chemical bonds are formed on the surface of the object. After more than ten years of hard work, R&D, and summarization, the Tianyang people are even more innovative. See the comparison of the following coupling agent products in this factory.

A. Comparison of titanate coupling agent and silicon coupling agent:
Applicable range Titanate silane
(1)Adaptive thermosetting resins and thermoplastic resins are only suitable for thermosetting resins
(2) Applicability to inorganic fillers Wide range of applications Limited application
(3) The main characteristics of the performance do not increase the strength, give the flexing to increase the strength, give rigidity
(4) Others mainly play a role in process performance and have obvious advantages and disadvantages.
B, the ratio of the application of the filler to the filler:
Results Silane Coupling Agents Titanate Coupling Agents Excellent effects of silica, glass, calcium carbonate, barium sulfate, aluminum hydroxide, titanium dioxide, etc. Most inorganic fillers have a certain effect of talc, iron powder, alumina, hydrogen Alumina, magnesium oxide, calcium oxide, mica, silica, glass and other less effective asbestos, iron oxide, titanium dioxide, zinc oxide talc, carbon black,
Invalid calcium carbonate, calcium sulfate, barium sulfate, graphite, boron graphite
C, comparison of chemical structure of titanate and silane:
Symbol Description Titanate R1-O-Ti-(O-X1-R2-Y) Silane (R1-O)2-Si-R2-Y
RO alkoxy 1 three alkoxy chelating functions are unstable if needed to eliminate the immediate alcohol by-product can not form a monolayer can not be hydrolyzed low medium ~ high and CaCO3 reaction can not
Adverse effects when -C transesterification reaction -X-bonded polyester can be excessive Excessive Occasionally Occurrence of X-bonding energy without using unsaturated structure
X1 Adjacent group Functionality Thermal stability if not necessary Sulfonyl - Thixotropy Not phosphate - Flame retardant Not phosphite - Anti-aging Effect Can
The length of the R2 R2 group is long to short and the length of the reduced viscosity is obviously not to medium. The effect of improving the impact resistance of the thermoplastic is excellent. No to medium flash point high to medium low
Y functional group 3 1
n Trifunctional Monofunctionality Hydrolysis Stability Good ~ Excellent ~ Poor
D, titanium, zirconium, aluminum coupling agent comparison:
Nature sequence reactivity (large) Al>Ti≥Zr (small)
Storage stability (good) Ti=Zr>Al (bad)
Chemical resistance (good) Ti=Zr>Al (bad)
Price (low) Al>Ti>Zr (high)
Species (More) Ti>Al>Zr (less)
Note: The reactivity of aluminum is larger than that of titanium and zirconium. Due to its strong activity, it usually reacts during storage, so the storage period is short.

From the above four tables, the overall advantages of the titanium coupling agent are: (1) Plastics, paper, inks, pigments, rubber, coatings, magnetic materials, and fillers are almost covered in the market; (2) Domestic At present, there are close to dozens of species that are close to nearly sixty Kenrich companies in the United States; (3) Especially water-soluble species can be stored for several years; (4) Moderate price (less than silicon, slightly higher than aluminum) .

Yizheng Tianyang Chemical Factory focuses on the development of titanium coupling agents in the development of coupling agent series products. Because this product is acute oral poisoning is lower than salt. Example: (1) For example, the LD50 values ​​of titanium coupling agents are all above 5g/kg. Compared with the LD50 value of salt that we eat in daily life 3.8g/kg, we can say that the acute toxicity of titanate coupling agent is Relatively low. (2) The irritation to the skin, although we know that the product is more irritating to the skin, the pH of the titanate in the aqueous solution is acidic - PH = 2.4 to 4.1. (3) According to the results of the pre-test set out in the foreign document of Japan dated March 8, 1979, the titanate coupling agent was negative, indicating that the variability of its carcinogenicity or genetic factors was very small in the United States. The same test results were also obtained. Therefore, the safety of the product is very high and it can be used safely in the above industries.

Tianyang Chemical Factory, in the actual packaging and printing, pigments, plastics modification, paper, ink, and coating manufacturing processes, as long as we add a coupling agent, it can be clearly seen that the material is not promoting the same Bonding between materials (such as inorganic filler or fiber and polymer substrate). Because the article has two different end group materials, one end is compatible with the inorganic surface and the other end is compatible with the polymer. Therefore, people call it a "bridge" role. Further, if the surface of the above-mentioned product after the coupling agent treatment is modified, the solubility parameters of the solvent in the coupling agent molecule are similar, and the wettability of the surface of such a product is greatly improved. In addition, the functional groups in the R group can be cross-linked with reactive functional groups in inks, coatings, compound adhesives, and coating oils, thereby greatly improving the adhesion of inks, coatings, adhesives, and coating layers to products. Focus on.

After the surface treatment of the coupling agent, it is also possible to improve the surface properties such as wear resistance, scratch resistance, dew condensation resistance, float color resistance, anti-flowering, and antistatic properties of the film surface.

A. Change the surface conditions of filler materials such as light and heavy calcium carbonate, wollastonite, kaolin, aluminum hydroxide, lithopone and low-grade titanium dioxide, and change from inorganic surface to organic surface (ie, the organicization of inorganic substances). Reduce the viscosity, increase the density, increase the fluidity, reduce the porosity, increase the amount of primer and ink, and thus improve the grinding. Filler is easy to grind, and can make ink, coating, pigment bright color, improve the adhesion of TM-P coupling agent.

B. Swelling ink, paint swelling, viscosity regression, can make the gel ink, paint, coating "return to life", baking and high temperature resistant ink can reduce the baking temperature, the metal cans coated with ink, ship The paint can inhibit the adsorption of microorganisms, and can make domestic titanium dioxide, lithopone, iron powder, carbon black, aluminum silicate and other polymers infiltrate with affinity, uniform dispersion, consistent viscosity stability, overcome surface ink film, uneven film, Defective TM-3 coupling agent such as loss of light.

C, all kinds of pigment wetting, dispersion is good, so that ink, paint does not produce water lines, floating color, hair, etc., and can improve the grinding dispersion efficiency, shorten the production of ink, paint, paint and improve its adhesion and Reduce the cost of materials, increase the brightness of the bright and beautiful, usually as a color ink, paint fine dispersant, stabilizer, brightener TM-27 coupling agent.

D. Pigments have high wetting and strong penetration, but also have antistatic effect, make general pigments become highly active pigments, easy to disperse, easy to grind, anti-sink, anti-floating, anti-flowering, improve the adhesion of ink film and coating film. Focus on the TM-950 coupling agent.

E. Dispersion of Titanium and Carbon Black is particularly noticeable. Fineness is achieved quickly in grinding, ergonomics are improved, and the dispersion system achieves a stable effect without returning to coarse, non-caking TM-931 coupling agents. Therefore, it is a black ink. , paint the best dispersion stabilizer.

F, can be mixed with any proportion, can increase the amount of filler in the ink, paint, and thixotropy, not sagging, and improve the ink coating film water resistance, abrasion resistance and washing resistance, so that the printing graphics bright, attached Strengthen the strength and improve the freeze resistance of inks and coatings, and extend the storage period of TM-200S coupling agent.
H. Excellent cross-linking agent for starch, carboxymethyl cellulose, CMC-NA, Sesbania, guar gum, cross-linking agent for water-based polyester and silicone resin, and viscosity-reducing dispersant for epoxy resin SiO2. Excellent thixotropic agent for cellulose latex paints, TM-TET coupling agents for room temperature drying water-soluble resins, drier for alkyd resins, and the like.

In order to strive for excellence and transform imitation and innovation, Tianyang Chemical Factory has completely taken its own path and has been thinking globally. It has independently developed a new type of A8 ink coating coupling aid. Ma Zhenshan, senior engineer, told the author: This completely edible coupling agent is compatible with China's packaging printing inks, coatings, adhesives, varnish, and paper products (towards non-toxicity) to environmentally-friendly, economical, and low cost. The rapid change of direction. At the same time, it also indicates that China's coupling agent additives can be comparable to foreign counterparts; it marks another major breakthrough in China's environment-friendly inks, coatings, pigments, and papermaking auxiliaries, overcoming the swelling of pigments and fillers in the aforementioned systems. Poor printing and coating applicability, and can effectively overcome the disadvantages of ink and paint, such as PH value or dispersion viscosity, resulting in poor pinhole and gloss, even difficult to level out, avoiding the traditional phosphate ester, two Methyl silicone oil and other harmful personal health substances. At the same time, it can reduce the cost of water-based inks, water-based paints, water-based adhesives, and papermaking materials, and it also effectively promotes the utilization of human resources.

Liu Jiaju Source: China Yinguang Network