Aluminate coupling agent dl 411 pvc filler powder surface activation modified compatible aluminate coupling agent

Product Overview

Description

 

This product is DL411 Rare earth coordination aluminate coupling agent, containing chelating group dioxyl with certain stability to water, can overcome or reduce the association of the final product, increase steric hindrance, and further improve hydrolysis resistance, so it can be used to treat humidity soil. The product is superior to titanate coupling agent in terms of color, thermal stability, lubricity, synergistic thermal stability, and economic benefits.

 

 

 

1. DL411 Scope of application of products:

Suitable for various inorganic fillers ( Such as calcium carbonate, wollastonite powder, talcum powder, barium sulfate, pyrophyllite powder, gypsum powder, fly ash, foam stone, alumina, etc. ) , inorganic flame retardant ( Such as magnesium hydroxide, aluminum hydroxide, zinc borate, antimony trioxide, etc. ) And pigments ( Such as oxidized red, zinc barium white, titanium dioxide, zinc oxide, lithopone, etc. ) The table painting is activated and modified. The modified fillers, flame retardants and pigments can be applied to composite products such as plastics, rubber, coatings, inks, laminates and binders.

 

 

Quality standard:

Item      purpose	Single bit	means    Bid
Outside    View	/	White solid
Melting temperature	℃	0.9-1.06
Viscosity reduction amplitude	%	≥98.0
Refractive index	/	1.450
thermal decomposition temperature	℃	≥70
Melting time	/	≤4

 

Suitable for various inorganic fillers ( Such as calcium carbonate, wollastonite powder, talcum powder, barium sulfate, pyrophyllite powder, kaolin, fly ash, sepiolite, alumina, etc. ) Inorganic flame retardant ( Such as magnesium hydroxide, aluminum hydroxide, zinc borate, antimony trioxide, etc. ) And pigments ( Such as iron oxide red, zinc barium white, titanium dioxide, zinc oxide, lithopone, etc. ) Surface activation modification.

 

The modified fillers, color masterbatches, flame retardants and pigments can be applied to composite products such as plastics, rubber, coatings, inks, laminates and binders.

 

(1) surface particle size of inorganic powder 400-600 The amount of eye coupling agent is 0.5% .

    Inorganic powder surface particle size 800 The amount of eye coupling agent is 0.8% .

    Inorganic powder surface particle size 1250 The amount of the coupling agent is the amount of the filler. 1 %.

    Other process molded products or foamed soft products, with the amount of filler. 0.5 ~ 1.0 %.
For carbon black, aluminum hydroxide, magnesium hydroxide, brucite powder, etc., it has a high specific surface or a high active surface.      

    The amount of coupling agent should be appropriately increased 1.5 ~ 2.5 %.

 

Coupling agent modified inorganic powder is mainly applicable to medium and low polarity composite products such PP , PVC , PE , PS , ABS etc. or other natural rubber, the general addition amount is 0.5-2%

 

 

Features and effects :

 

 

1 , with other coupling agents ( Such as titanate, borate, etc. ) Compared with the aluminate coupling agent DL-411 In addition to stable quality, the inorganic powder after activation and modification has light color, environmental protection, low taste and good quality. PVC The synergistic thermal stability and lubricity have a wide range of applications, no diluent, easy to use, and low price.

 

 

2 Jing DL Various inorganic powders activated and modified by series of aluminate coupling agents form an organic molecular layer due to chemical or physical effects on the surface, which changes from hydrophilicity to organophilicity. Practice has proved that the surface of inorganic powder is used in composite products after the aluminate coupling agent is used. The inorganic end and the organic end of the coupling agent can react with the surface of the inorganic filler and the organic resin respectively or form an entanglement structure. Enhance the interfacial compatibility between inorganic powder and organic resin, so the modification of aluminate coupling agent can not only improve the processing performance of plastic products filled with inorganic powder, but also can significantly improve the physical and mechanical properties of the product, so that the product water absorption rate is reduced, the oil absorption is reduced, and the filling and releasing dispersion is uniform.

 

 

3 , in the production of pigments, inks, coatings grinding color ( Fill in ) In the material process, the coupling agent can be directly put into the measurement, which plays a role in changing the color. ( Fill in ) The dispersion of the material, shorten the grinding time, improve the fineness, brightness and reduce the viscosity to increase the obvious effect of the adhesion of the material.

 

 

4 , DL411 Modification CaCO3 The more you use PvC The profile pipe can increase the filling amount with large spokes, while retaining the excellent mechanical properties of the material such as tensile strength, impact strength, and the modified production of this type of coupling agent. Pvc The smooth surface of the tube profile surface shows that the aluminate coupling agent is a kind of excellent coupling agent that can enhance the filling effect. At the same time, it has good stability.

 

 

5 It is a suitable coupling agent for anti-mold and denatured plastic products. Widely used in box grade plastic packaging products.

 

 

6 , DL-411 Filling masterbatch, transparent masterbatch, water-absorbing masterbatch and degradation masterbatch produced by coupling agent. Flame retardant masterbatch; its amount is significantly higher than that of the production of common coupling agent. And the mechanical properties are stable; the broken product stretches well.

 

 

7 Because this type of coupling agent does not contain paraffin, white oil. Activating the political inorganic powder is fixed and applied to dry powder coatings, plastic products, strong adhesion, not easy to fade and other characteristics.

 

 

Filler activation modification treatment method:

1 , pretreatment method: the filler is first in the high-speed mixer ( Preheating to material temperature up 100-110 ℃ ) Medium stirring and drying (open mouth )

15 minutes, so that the water content of the filler is lower 0.63% , slow addition of metered pinched coupling agent ( Be careful not to stir the coupling agent to the inner wall of the mixer. ) , modification time 3~5 Minutes.

 

2 , direct addition method: if the water content of the filler is lower 0.3% . The coupling agent can be added directly during kneading in a high-speed machine Fadong 1 . However, attention should be paid to components containing carboxyl and carboxyl groups such as stearic acid and organic alcohol. Be sure to enter the modified raw sodium at the later stage when adding the filler of the combination agent, and never enter it at the same time as the coupling agent to avoid the failure of the coupling agent.

The above 2 methods: the previous method has achieved good results.

 

  The key to successful application of coupling agents:

1 , To ensure the effect of coupling agent on the activation and modification of the filler, use a high-speed mixer heated by the jacket to activate and modify the filler.

2 , PE , PP , ABS , PS For composite products with granular resin as raw material, it is best to make masterbatch or granular material form first, and then mix with these granular resins for application. The filling masterbatch produced by the coupling agent, application and composite system, its elongation at break, filling amount, surface gloss, material toughness and other physical and chemical properties are completely better than other various coupling agents.

3 , to ensure that the coupling agent modified filler and powdered resin ( Such PVC) and its compounding materials have good plasticizing effect. It is recommended to use high-speed kneading and then extruding and cutting after intruding or plasticizing.

4 When used for inorganic powder modification, it is recommended to add a small amount of stearic acid as a synergistic agent, which can reduce the cost on the premise of ensuring quality. The amount of stearic acid is generally powder 0.5 %. The usage is to put a coupling agent into a high-speed mixer to activate the filler.     Sex 3 ~ 5 After minutes, add a small amount of stearic acid and stir at high speed. 3 In minutes, it can work well with the coupling agent.     Effect, be careful not to add the coupling agent first or at the same time. Such as production PVC The pipe is preferably modified by coupling agent. 3 ~  5 After minutes, stearic acid is added, and activated calcium carbonate can be maintained in a large amount. PVC The pipe has good toughness, impact resistance, and can significantly improve the gloss of the product.

 

Storage method:

    During use, the product should be stored in a dry and ventilated place, protected from light and insulated.