| HS Code | 188007 |
| Product Name | EVAtech EVA 110S/3N/1 Ethylene Vinyl Acetate Copolymer |
| Vinyl Acetate Content | 11% |
| Melt Flow Rate 190 C 2 16kg | 3 g/10min |
| Density | 0.928 g/cm³ |
| Melting Point | 94°C |
| Vicat Softening Point | 68°C |
| Tensile Strength At Break | 15 MPa |
| Elongation At Break | 800% |
| Shore Hardness | 86 Shore A |
| Brittleness Temperature | -70°C |
| Flexural Modulus | 120 MPa |
As an accredited EVAtech EVA 110S/3N/1 Ethylene Vinyl Acetate Copolymer factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Supplied as free-flowing pellets in 25 kg polyethylene-lined bags, with palletized options for safe transport and storage. |
| Container Loading (20′ FCL) | 20′ FCL: EVAtech EVA 110S/3N/1 loaded in 20-foot container, packed on pallets, secured for safe transport. |
| Shipping | EVAtech EVA 110S/3N/1 is shipped as solid pellets in sealed bags, palletized and stretch-wrapped for protection. It is non-hazardous under normal transport conditions. Keep dry, avoid excessive heat and direct sunlight during transit and storage to prevent clumping or degradation. |
| Storage | Store in a cool, dry, well-ventilated area away from direct sunlight, heat, and ignition sources. Keep containers tightly sealed to prevent moisture absorption and contamination. Protect from physical damage and incompatible materials. Under recommended conditions, shelf life is typically 12 months from date of manufacture. |
| Shelf Life | Store in original sealed packaging, away from heat, moisture, and sunlight. Shelf life: 2 years from date of manufacture. |
Hot-melt adhesive formulations incorporating EVAtech EVA 110S/3N/1 are compounded with tackifiers and waxes to balance open time, set speed, and adhesive peel strength. A representative formulation window contains 25–35 wt% EVA copolymer, 30–45 wt% hydrogenated hydrocarbon resin or rosin ester, 15–30 wt% microcrystalline wax, and 0.5–1.0 wt% hindered phenolic antioxidant. The mixer is a jacketed sigma-blade vessel run at 150–175°C under a nitrogen blanket; discharge viscosity is checked by ASTM D3236-15 at 160–180°C and maintained between 1,200–2,400 mPa·s. Ram discharge passes through a heated melt pump into a strand pelletizer, with pellet temperature kept below 40°C to prevent blocking. Low vinyl acetate content, as declared on the batch certificate by ASTM D5594-18, reduces specific adhesion to aluminum and OPP relative to higher vinyl acetate grades but increases thermal stability at application temperatures up to 200°C. For indirect food-contact use, the finished adhesive must satisfy FDA 21 CFR 175.105 and EU Regulation (EC) No 1935/2004. End products include carton-side seam sealing, case erecting, bookbinding, and laminate construction. Lot-specific melt flow rate should be measured by ISO 1133-1:2022 before setting the wax-to-tackifier ratio; published data for this specific 110S/3N/1 configuration is limited and must be supplemented with a supplier certificate.
When EVAtech EVA 110S/3N/1 is used as a hardness modifier in blended EVA footwear compounds, the polymer fraction is typically combined with a higher vinyl acetate EVA resin, with 110S/3N/1 held at 10–30 wt% of the polymer phase to avoid over-stiffening and incomplete expansion. The batch is mixed in an internal mixer with a ram pressure of 0.5–0.7 MPa and a drop temperature of 105–120°C, followed by two-roll milling at 90–100°C. Crosslinking is initiated with dicumyl peroxide at 0.7–1.2 phr; azodicarbonamide blowing agent is dosed at 2.8–4.2 phr; zinc oxide at 1.0–1.5 phr and stearic acid at 0.5–0.8 phr serve as activator and release control. Amine-based stabilizers are excluded from the cure package because they scavenge the free radicals required for crosslinking. Expansion and curing occur in a compression press at 165–175°C under 150–200 kg/cm² for 8–12 min. The resulting foam is conditioned for 24 h at 23±2°C and 50±5% RH before testing. Hardness is measured by ISO 7619-1:2010 on an Asker C scale, tear resistance by ASTM D624-00 or DIN 53516, and flex fatigue by the Ross flex test under ISO 4643:2010. Compliance for this footwear sector includes REACH Regulation (EC) No 1907/2006 Annex XVII restrictions on phthalates and polycyclic aromatic hydrocarbons, and Directive 2011/65/EU RoHS where applicable. Terminal products include injection-moulded sport shoe midsoles, compression-moulded sandal sheets, and unit soles. The processing window is narrow because premature crosslinking in the mixer above 125°C raises compound viscosity and destroys cell uniformity; residence time must not exceed 7–9 min in the internal mixer once peroxide is added.
Halogen-free flame-retardant cable compounds built on EVAtech EVA 110S/3N/1 are processed with aluminum trihydrate and, in some grades, a secondary magnesium dihydrate filler. The upper processing temperature is constrained by ATH dehydration onset near 180–210°C and by EVA deacetylation acceleration above 230°C; barrel setpoints from feed to die are therefore maintained at 130/140/150/160/170/175°C on a 36–44 L/D co-rotating twin-screw extruder. The EVA copolymer contributes to char structure during combustion due to elimination of acetic acid from vinyl acetate units, while the 3N/1 additive package provides processing stabilization and demolding behavior. Residual moisture in the EVA pellets is kept below 0.05% by Karl Fischer titration before extrusion to avoid ATH hydrolysis degradation. Screw speed is set between 250–400 rpm depending on extruder diameter, and specific mechanical energy is kept below 0.25 kWh/kg to limit local shear heating. End products include building wire insulation and outer jacketing for low-smoke zero-halogen cables.
| Ingredient | Formulation A (wt%) | Formulation B (wt%) | Formulation C (wt%) |
|---|---|---|---|
| EVAtech EVA 110S/3N/1 | 25 | 20 | 15 |
| LLDPE | 10 | 10 | 10 |
| Aluminum trihydrate | 50 | 55 | 60 |
| Magnesium dihydrate | 0 | 5 | 10 |
| Zinc borate | 5 | 5 | 5 |
| Maleic anhydride-grafted ethylene copolymer | 5 | 3 | 0 |
| Processing aids and antioxidants | 5 | 2 | 0 |
Flame retardancy is verified by limited oxygen index ISO 4589-2:2017, vertical flame propagation IEC 60332-1-2:2015, smoke density IEC 61034-2:2019, and halogen acid gas release IEC 60754-1:2011 and IEC 60754-2:2019. Tensile properties are measured by ASTM D638-14 after extrusion; elongation at break typically falls below 350% in 60 wt% filler compounds, requiring a minimum EVA/LLDPE ratio of 1.5:1 for process stability in thin-wall sheathing. Compound temperature at the die should not exceed 190°C; higher readings cause surface roughness and pre-drying is required when storage relative humidity exceeds 60%. Amine-terminated stabilizers are incompatible in this system because they can promote premature deacetylation and crosslinking in the EVA phase.
In extrusion coating and lamination, EVAtech EVA 110S/3N/1 is extruded at melt temperatures between 260°C and 295°C to achieve oxidative stability and adhesion to substrates; the exact melt temperature depends on substrate thermal sensitivity and the melt flow rate reported under ISO 1133-1:2022. Coating onto corona-treated PET, aluminum foil, or paper requires a substrate surface energy of 42–46 dyn/cm, measured by ISO 8296:2003; a 3N/1 slip package controls coefficient of friction below 0.4 by ISO 8295:1995 in the final laminate. The extrusion line is typically a single-screw extruder with 24–30 L/D and a barrier screw, feeding a slot die with an opening of 0.5–0.8 mm; coating weight is controlled between 15–30 g/m² for sachets and lidding films. Line speeds from 120–350 m/min are used, with higher speeds requiring a melt flow rate at the upper end of the grade specification. End products include retort lidding, condiment sachets, aseptic brick laminates, and medical peelable webs. Compliance for these food-contact structures is evaluated under Commission Regulation (EU) No 10/2011 for plastics intended for food contact and FDA 21 CFR 177.1350 for ethylene-vinyl acetate copolymers.
| Parameter | Method / Regulation | Typical Limit |
|---|---|---|
| Overall migration in aqueous, acidic, and ethanolic simulants | EU 10/2011 Annex III | 10 mg/dm² |
| Vinyl acetate monomer specific migration | EU 10/2011 with GC-MS | 12 mg/kg food |
| EVA copolymer compliance for food contact | FDA 21 CFR 177.1350 | Vinyl acetate content per listed resins |
| Slip additive migration | EU 10/2011 Annex V | 10 mg/dm² |
Agricultural cladding film incorporating EVAtech EVA 110S/3N/1 is coextruded in three-layer blown-film lines with die diameters from 100–250 mm, die gaps of 1.6–2.2 mm, and blow-up ratios between 2.0 and 2.8. The EVA is dosed into the middle or outer layer at 10–20 wt% of the total film, with the balance split between LLDPE and LDPE; this modification reduces low-temperature brittleness measured by ISO 527-3:2018 at -20°C and lessens stress whitening in folded edges. Film thickness for greenhouse and tunnel covers is maintained at 150–200 μm. Melt temperature is held at 190–210°C to limit acetic acid evolution. The film is tested for tensile stress at break by ISO 527-3:2018, tear resistance by ISO 6383-2:1983, light transmittance by ISO 13468-1:2019, and haze by ASTM D1003-21. Compliance for agricultural films is substantiated under EN 13206:2017 for covering thermoplastic films and REACH Regulation (EC) No 1907/2006. End products include multi-season greenhouse outer covers, low tunnels, and silage pit covers. The narrow processing band arises because EVA with low vinyl acetate content can generate acetic acid at high residence time; frost-line height is set at 1.5–2.0 times the die diameter to stabilize bubble cooling.
In masterbatch production, EVAtech EVA 110S/3N/1 serves as a carrier for organic pigments, carbon black, and slip or antiblock concentrates because the vinyl acetate comonomer increases pigment wetting compared to pure LDPE while preserving compatibility with polyethylene let-down. Pigment loading is set at 20–60 wt% depending on color strength requirements; the carrier is dosed at 30–60 wt%, with the balance consisting of wax dispersants and processing aids. Compounding is performed on a co-rotating twin-screw extruder with 40–50 L/D, side feeding the pigment downstream after polymer melting; barrel temperatures are staged from 160°C at the feed zone to 200–220°C at the die, and screw speed is maintained at 400–600 rpm. Specific energy input ranges from 0.15–0.35 kWh/kg; the 3N/1 stabilizer package controls melt viscosity drift below 8% after 10 min residence time in a Brabender torque rheometer at 200°C. Let-down ratios in film and injection moulding are typically 2–5 wt% of compounded masterbatch. Compliance for color concentrates includes REACH Annex XVII and, where applicable, EN 71-3:2019 migration limits for toys; published data for this exact carrier grade in high-carbon-black masterbatch is limited, so production trials with lot-specific melt flow rate and pigment oil absorption are required. End products include masterbatch pellets for polyethylene film, thin-wall injection moulded packaging, and blow-moulded containers.
Competitive EVAtech EVA 110S/3N/1 Ethylene Vinyl Acetate Copolymer prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8615380400285 or mail to sales2@liwei-chem.com.
We will respond to you as soon as possible.
Tel: +8615380400285
Email: sales2@liwei-chem.com
Flexible payment, competitive price, premium service - Inquire now!
EVAtech EVA 110S/3N/1 Ethylene Vinyl Acetate Copolymer is a statistical ethylene-vinyl acetate copolymer in which the acetate comonomer is introduced along the polyethylene backbone to reduce crystallinity and modify surface interaction. The suffix 110S/3N/1 is an internal manufacturer code for a controlled-viscosity package, a nucleating/clarity system, and a stabilizer formulation; it does not publicly identify the vinyl acetate mass fraction or the melt flow rate. Because published numerical values for this exact configuration are limited, the supplier certificate of analysis is the controlling document for lot-specific limits. Characterisation of the polymer family is conducted by infrared spectroscopy according to ASTM D5594 for comonomer content, by ISO 1133-1:2022 at 190 °C and 2.16 kg for melt mass-flow rate, and by ISO 1183-1:2019 for density. The acetate ester polarity differs from nonpolar low-density polyethylene and contributes to measurable changes in adhesion to aluminium foil, paperboard, and polar inks. The stabiliser system is designed for single-pass extrusion and pellet logistics, not for long-term storage above 40 °C or repeated regrind levels above 30%. Pre-drying at 60 °C to 70 °C for 4 h is applied only after exposure to RH > 60%; unnecessary drying can increase pellet surface tack and hopper instability.
Pendant acetate groups degrade by deacetylation at elevated temperature, releasing acetic acid and forming unsaturation on the ethylene chain. The reaction rate becomes engineering-relevant above approximately 230 °C and accelerates with moisture, residence time, and local shear heating. On a corotating twin-screw extruder with L/D 40:1, barrel set points are commonly profiled from 150 °C in the feed zone to 190 °C to 210 °C in the melting section, with a die body held at 210 °C to 220 °C. Melt temperature measured by an immersion or infrared thermocouple should not exceed 220 °C for extended compounding residence. Kneading-block length should be restricted to 12% to 15% of the processing length because severe shear can generate a local melt-temperature overshoot of 15 °C to 25 °C above barrel set point. Vacuum venting at -0.08 MPa to -0.09 MPa after plastication strips acetic acid and volatile oligomers; when venting is insufficient, carbon steel surfaces downstream can exhibit pitting and gel accumulation. Deacetylation is monitored through yellowness index by ASTM E313 and through oxidation induction time by ISO 11357-6:2021. The processing ceiling is therefore a function of temperature, moisture, and screw energy; published lot-specific degradation data for EVAtech EVA 110S/3N/1 are limited, but the mechanism is well documented for ethylene-vinyl acetate copolymers.
In flexible packaging sealant webs, the resin is introduced as a coextruded skin layer over a polyolefin core. Sealant layer thickness is commonly 10 µm to 30 µm within a total structure of 50 µm to 120 µm. Heat seal initiation and hot-tack strength are measured by ASTM F1921 with a 0.5 s dwell and 0.275 MPa seal pressure; EVA copolymers generally shift seal initiation to a lower temperature than low-density polyethylene and provide a broader hot-tack window than crystalline polypropylene. Haze is measured by ASTM D1003, gloss by ASTM D2457, and coefficient of friction by ISO 8295. The nucleating/clarity package designated in the grade code is intended to control morphological regularity during chill roll quenching at 18 °C to 25 °C. Film converters should validate slip and antiblock levels on the packaging line because coefficient of friction values below 0.3 can produce roll telescoping, while values above 0.6 can disturb tension control. These limits are equipment-specific and are included here as industrial audit criteria, not as universal material specifications.
Capillary rheometry according to ISO 11443:2021 at 190 °C and 210 °C yields apparent shear viscosity, shear-thinning slope, and onset of melt fracture. EVA copolymers in this product class commonly display a zero-shear plateau below 1 s−1, pronounced shear thinning between 1 s−1 and 1000 s−1, and a power-law index in the shear-thinning region between 0.50 and 0.75. Gross melt fracture is typically observed at wall shear stress between 0.2 MPa and 0.4 MPa. For cast film and extrusion coating, melt-pump discharge pressure should remain below 15 MPa; for blown film, die-lip shear rates are generally maintained below 1000 s−1. The exact melt viscosity and die swell for EVAtech EVA 110S/3N/1 must be taken from the supplier’s lot certificate because the suffix 110S/3N/1 is not a public melt flow report. Filled systems shift the viscosity curve upward: addition of 10 wt% talc can increase pressure drop by 15% to 30% depending on particle size distribution, surface treatment, and screw design. Die swell at 100 s−1 for such copolymers is commonly between 1.2 and 1.6, but the value depends on molecular weight distribution and long-chain branching.
Compared with high-vinyl-acetate EVA grades containing 18% to 28% vinyl acetate by mass, grades of the 110S/3N/1 class are expected to retain higher crystallinity, lower surface tack, and a higher Vicat softening point as measured by ISO 306:2022. The lower acetate content reduces solubility parameter matching with highly polar substrates but improves dimensional stability in warm environments. Compared with ionomer resins, the EVA grade lacks ionic clusters that generate high melt strength and seal-through-contamination performance; dart impact and seal strength of ionomers under ASTM D1709 and ASTM F88 are generally higher at equivalent thickness. Compared with metallocene linear low-density polyethylene, EVA provides a broader hot-tack window and lower seal initiation, but it can show higher colour development after repeated regrind because acetate degradation by-products absorb in the visible region. Substitution of EVA 110S/3N/1 for another sealing resin should be validated by a design-of-experiments matrix that includes seal dwell, seal pressure, film thickness, melt temperature, and line speed; single-point laboratory comparisons are insufficient for packaging qualification.
Replacement of LDPE with EVA 110S/3N/1 in extrusion coating changes adhesion to aluminium foil, paperboard, and primed films because acetate dipoles interact with hydroxyl and oxide surfaces. Peel adhesion is evaluated after conditioning at 23 °C and 50% RH for 24 h according to ASTM F904 or ISO 8510-1. LDPE coatings often require ozone priming or a coextruded tie layer for direct foil adhesion, whereas EVA copolymers can provide direct adhesion over a controlled melt-temperature range. The air gap is normally maintained at 10 mm to 25 mm; excessive oxidation at the melt surface can raise adhesion but may generate carbonyl volatiles. Chill roll temperature is set at 15 °C to 25 °C; lower temperatures increase gloss but can freeze stress into the coating. Because EVA is more thermally sensitive than LDPE, adapter and die temperatures should remain below 260 °C, and total residence time should not exceed 15 min. Coating weight is typically 10 g/m² to 25 g/m², corresponding to approximately 10 µm to 25 µm. The nucleating package may reduce curtain flutter by modifying elongational viscosity; however, published data for this exact grade in high-speed extrusion coating are limited to supplier-run trials and confidential line audits.
Compliance for EVAtech EVA 110S/3N/1 depends on the intended food-contact use, conversion temperature, and final packaging simulant. The following standards and declarations are used to assemble a material compliance record; the supplier statement of composition remains necessary to confirm the exact migration behaviour.
| Regulatory or material requirement | Referenced standard/method | Typical target/condition |
|---|---|---|
| Ethylene-vinyl acetate copolymer food-contact compliance, United States | FDA 21 CFR 177.1350(b) | Subject to migration limits and use conditions |
| European Union food-contact plastics | Regulation (EU) No 10/2011, Annex I and II | Overall migration ≤ 10 mg/dm² per EN 1186-1 |
| Melt mass-flow rate | ISO 1133-1:2022 | 190 °C, 2.16 kg |
| Density | ISO 1183-1:2019 | Gradient column at 23 °C |
| Vinyl acetate content | ASTM D5594 / internal FTIR | Lot certificate range |
| Tensile properties | ISO 527-2:2012 | Type 5A or 1B specimen, 50 mm/min |
| Vicat softening temperature | ISO 306:2022 | Method A50 or B50 |
| REACH SVHC screening | Regulation (EC) No 1907/2006 | Supplier declaration |
| RoHS restricted substances | Directive 2011/65/EU | Supplier declaration |
In peroxide-crosslinked foam production, EVA 110S/3N/1 may be compounded with dicumyl peroxide, azodicarbonamide, and zinc oxide in an intermeshing or Banbury mixer. Peroxide is added at a drop temperature below 110 °C to prevent premature decomposition. Cure kinetics are recorded by moving-die rheometry at 160 °C and 180 °C according to ASTM D5289. Lower-acetate EVA grades generate a denser foam than high-acetate grades at equivalent blowing agent loading because crystalline domains restrict cell expansion; closed-cell content is measured by gas pycnometry according to ASTM D6226. Compression set is determined by ASTM D395 after 24 h at 50% compression and 23 °C. The nucleating package can reduce cell diameter and narrow cell-size distribution, but the practical effect must be confirmed by electron microscopy or optical profilometry on the specific line. Injection moulding of this EVA grade requires a moderate compression ratio screw, clamp force calculated from projected area, and a mould temperature of 10 °C to 20 °C; published moulding data for this particular configuration are limited.
