Palmer Holland - Dynasylan 1189 - Silanes - Textiles

As a size constituent or finish for glass fiber/glass fabric composites
As an additive to phenolic, furan and melamine resins used in foundry resins
As a primer or additive and for the chemical modification of adhesives and sealants
For pretreatment of fillers and pigments used in mineral- filled polymers
As a primer and additive for improving the adhesion of paints and coatings to the substrate
As a high flexible adhesion promoter in SMPsystems.

The most important product effects that can be achieved using Dynasylan® 1189 include:

Dynasylan® 1189 can also provide improvements in processing properties, such as

Processing Information

For substrate pretreatments (inorganic fibers and fillers) Dynasylan® 1189 can be applied as a primer as a constituent of an aqueous size or solution, neat or added to the polymer as an additive.
For substrate pretreatment a concentration of approx. 0.52 percent is recommended.
Higher concentrations (15 wt. %) achieve chemical modification by reaction with suitable functional monomers or polymers, for example those containing isocyanate groups.

Physical Form

Liquid

Soluble In

Alcohol Soluble,

Product Reactivity

In the presence of water, the methoxy groups of Dynasylan® 1189 hydrolyze to form reactive silanol groups which can bond to a variety of inorganic substrates.
The organophilic n- butylamino group of Dynasylan® 1189 can react with a suitable polymer.
The hydrolysis of Dynasylan® 1189 in water takes place by acid catalysis (e.g. acetic acid at a pH of 3).
To achieve solubility in organic solvents 24 wt.% of water per wt.% of Dynasylan® 1189 should be added. After stirring for 5 hours the solutions are ready for use.
Examples of suitable inorganic substrates are glass, glass fibers, glass wool, wollastonite and kaolin.
Dynasylan® 1189 may be used with such polymers as epoxy, polyurethanes, PA, PBT, EVA, modified PP and silicones.
In particular, Dynasylan® 1189 is a very effective coupling agent for thermoplastics.
Superior mechanical properties can be achieved in reinforced MAAmodified PE or polypropylene matrices as well as polyamide.
Dynasylan® 1189 especially leads to improvement of the impact strength of polyamide.
Dynasylan® 1189 treated fibers and fillers deliver superior performance over standard aminosilanes in challenging environments.
Dynasylan® 1189 can be used as an endcapper for polyurethanes (isocyanatoprepolymer).

Storage Conditions

In the unopened container Dynasylan® 1189 has a shelf life of at least 12 months.

Appearance

Colorless to slight yellowish liquid

Color (SDS)

Colorless to yellowish

Immiscible In (SDS)

Water

Item Number

ITM09068,

Odor

Amine like odor

Odor (SDS)

Slightly ammoniacal

Other Hazards

None

USA/DOT UN Number

Not Applicable

Shelf Life & Stability


	Value	Units	Test Method / Conditions
Shelf Life	12.0 mo	mo

Physical Properties

SDS Physical and Chemical Properties


	Value	Units	Test Method / Conditions
Boiling Point (SDS)	238.0 °C	°C	DIN 51751 at 101.3kPa
Density (SDS)	0.947 g/cm³	g/cm³	DIN 51757 at 20°C
Flash Point (SDS)	min. 95.0 °C	°C	EN ISO 2719
Flash Point (SDS)	min. 95.0 °C	°C	Pensky-Martens Closed Cup (PMCC)
Freeze Point (SDS)	max. -38.0 °C	°C
Ignition Temperature (SDS)	260.0 °C	°C	DIN 51794
Partition coefficient n-octanol/water (SDS)	2.2	-	QSAR, n- octanol/water
Vapor Pressure (SDS)	max. 0.1 hPa	hPa	Internal Method at 20°C
Viscosity (SDS)	2.5 mPa.s	mPa.s	At 20°C
pH (SDS)	10.9	-	at 20°C, 20 g/L