RHOPLEX® ST-954

RHOPLEX® ST-954 is an APE free acrylic emulsion used in the manufacture of soft and durable nonwoven webs such as those used in apparel interlinings or interfacings. Webs using this binder possess excellent resistance to degradation from dry cleaning and laundering together with the softness required of typical apparel applications. Nonwovens bonded with RHOPLEX® ST-954 not only have the strength characteristics of stiffer binders, and binders of comparable softness crosslinked with a melamine- formaldehyde resin, but do so without compromising hand. The improved balance of strength and softness in this acrylic binder results from an advanced emulsion manufacturing technology.

Principal: Dow Adhesives

Chemical Family: Chemical Mixtures & Blends

Functions: Binder, Binder & Resin, Resin

End Uses: Automotive Applications, Interlining, Medical Gowns, Nonwovens, Paper Coating, Tents, Upholstered Furniture, Upholstery

Compatible Substrates & Surfaces: Paper

Enhanced TDS

Identification & Functionality

Blend
No
CASE Ingredients Functions
Chemical Family
Country of Origin
Function
Binder, Resin
Industrial Additives Functions
Plastics & Elastomers Functions
Product Code
MITM15384
Single Ingredient
Yes
Technologies
Product Families

Features & Benefits

Key Features and Benefits
  • The main benefits of using RHOPLEX® ST-954 as the binder for interlinings are:
  • Desirable drape attained in apparel applications
  • Shape and strength retained after repeated laundering
  • Good resistance to drycleaning solvents
  • Reduction or elimination of melamine-formaldehyde resins
  • Easy formulation and application with conventional techniques and equipment.
  • While RHOPLEX® ST-954 is designed specifically for durable applications, it also has potential in disposable uses such as carrier fabrics or medical drapes and gowns. The balance of softness and strength combined with its slightly hydrophobic nature recommends RHOPLEX® ST-954 to these market segments.
Product Features

The balance of strength and softness offered by RHOPLEX® ST-954 can be demonstrated by using the glass transition temperature as an indicator of softness, and tensile measurements for evaluation of strength. Wet tensile strength of nonwovens bonded with RHOPLEX® ST-954 significantly exceeds that of an acrylic emulsion of essentially equal Glass temperature and is equivalent to that of RHOPLEX® 1402, a significantly stiffer binder. RHOPLEX® ST-954 was also compared to the acrylic emulsion of equal softness modified with a melamine-formaldehyde resin (MFR). The tensile strengths of this binder approach those of the MFR-modified emulsion, while the hand of RHOPLEX® ST-954 is significantly softer. These relative strength relationships are maintained on webs wet with water or solvents, indicating the suitability of RHOPLEX® ST-954 for durable and disposable wipe-type applications. These results were obtained by testing commercially produced nonwoven Dacron polyester webs normalized at 0.7 ounces per square yard and a 70/30 fiber/binder ratio.

Applications & Uses

Properties

Physical Form

Safety & Health

Safety Precautions

Dispose in accordance with all local, state (provincial) and federal regulations. Empty containers may contain hazardous residues. This RHOPLEX® ST-954 and its container must be disposed in a safe and legal manner.

Packaging & Availability

Packaging Type

Principal Information

Group Principal Number
S000005
Principal

Storage & Handling

Handling Information
  • CAUTION! Keep combustible and/or flammable products and their vapors away from heat, sparks, flames and other sources of ignition including static discharge. Processing or operating at temperatures near or above product flashpoint may pose a fire hazard.Use appropriate grounding and bonding techniques to manage static discharge hazards.
  • CAUTION! Failure to maintain proper volume level when using immersion heaters can expose tank and solution to excessive heat resulting in a possible combustion hazard, particularly when plastic tanks are used.
Storage Conditions

Store RHOPLEX® ST-954 in tightly closed original containers at temperatures recommended on the product label.

Other

Appearance
Milky white liquid
Color (SDS)
White
Item Number
Odor (SDS)
Acrylic odor
Protect from Freezing
Yes
Temperature Control
Yes
USA/DOT UN Number
Not Applicable
Chemical Properties
ValueUnitsTest Method / Conditions
pH3.5-
Material Composition
ValueUnitsTest Method / Conditions
Solid Content45.5 %%
Mechanical Properties
ValueUnitsTest Method / Conditions
Web Stiffness40.0 ggHandle-O-Meter 4 x 4 inch sample, lower numbers are softer
Physical Properties
ValueUnitsTest Method / Conditions
Density1.04 kg/Lkg/Lat 25°C
Glass Transition Temperature (Tg)-23.0 °C°CDifferential Scanning Calorimetry
Glass Transition Temperature (Tg)-23.0 °C°Csoftness
Storage Temperature34.0-120.0 °F°F
Viscosity30.0 cPscPsBrookfield Viscometer at 25°C, 60 rpm, spindle #1
SDS Physical and Chemical Properties
ValueUnitsTest Method / Conditions
Boiling Point (SDS)100.0 °C°Cat 760 mmHg
Evaporation Rate (SDS)max. 1.0 %%Butyl Acetate=1
Relative Vapor Density (SDS)max. 1.0-Air=1
Specific Gravity (SDS)1.0-1.2-Water = 1
Vapor Pressure (SDS)22.6666667 mm Hgmm Hgat 20°C
Viscosity (SDS)200.0 mPa.smPa.s
Volatile Content (SDS)54.0-56.0 %%
pH (SDS)3.0-4.0-
Shelf Life & Stability
ValueUnitsTest Method / Conditions
Shelf Life0.0 dd