Zytel® 7331J NC010 | PA6 NYLON RESIN

Characteristics

Regional Availability

Asia Pacific

Processing

Injection Moulding

Delivery form

Pellets

Product Text

Common features of Zytel® nylon resin include mechanical and physical properties such as high mechanical strength, excellent balance of stiffness and toughness, good high temperature performance, good electrical and flammability properties, good abrasion and chemical resistance. In addition, Zytel® nylon resins are available in different modified and reinforced grades to create a wide range of products with tailored properties for specific processes and end-uses. Zytel® nylon resin, including most flame retardant grades, offer the ability to be coloured.

The good melt stability of Zytel® nylon resin normally enables the recycling of properly handled production waste. If recycling is not possible, DuPont recommends, as the preferred option, incineration with energy recovery (-31kJ/g of base polymer) in appropriately equipped installations. For disposal, local regulations have to be observed.

Zytel® nylon resin typically is used in demanding applications in the automotive, furniture, domestic appliances, sporting goods and construction industry.

Zytel® 7331J is a lubricated fast cycling polyamide 6 for injection moulding.

Injection molding

PREPROCESSING

Drying recommended = Yes, if moisture content of resin exceeds recommended level

Drying temperature = 80℃

Drying time, dehumidified dryer = 2-4 h

Processing moisture content = <0.2 %

PROCESSING

Melt temperature optimum = 270℃

Melt temperature range = 260-280℃

Mould temperature optimum = 70℃

Mould temperature range = 50-90℃

Maximum Screw tangential Speed : 0.4 m/s

Flow front speed : 150 mm/s

Hold pressure optimum : 85 MPa

Hold pressure range : 50-100 MPa

Back pressure : low

Hold pressure time : 4 s/mm

Maximum hold-up time : 15 min

POSTPROCESSING

Annealing : 30min at 170℃

PROPERTIES

Mechanical properties		dry / cond	Unit	Test Standard
Mech	Tensile Modulus	2900 / -	MPa	ISO 527-1/-2
	Yield stress	80 / -	MPa	ISO 527-1/-2
	Yield strain	4 / -	%	ISO 527-1/-2
	Nominal strain at break	40 / -	%	ISO 527-1/-2
	Charpy notched impact strength,23℃	5 / -	kJ/m²	ISO 179/1eA
Thermal properties		dry / cond	Unit	Test Standard
Therm	Melting temperature,10℃/min	221 / *	℃	ISO 11357-1/-3
	Temp. of deflection under load,1.8 MPa	60 / *	℃	ISO 75-1/-2
	Temp. of deflection under load,0.45 MPa	155 / *	℃	ISO 75-1/-2
Flammability		dry / cond	Unit	Test Standard
Flam	Burning Behav. at 1.5 mm nom. thickn.	V-2 / *	class	IEC 60695-11-10
	Thickness tested	1.5 / *	mm	IEC 60695-11-10
	Burning Behav. at thickness h	V-2 / *	class	IEC 60695-11-10
	Thickness tested	0.8 / *	mm	IEC 60695-11-10
Other properties		dry / cond	Unit	Test Standard
Other	Density	1130 / -	kg/m³	ISO 1183
Rheological calc. properties		Value	Unit	Test Standard
RheoCalc	Min. mould temperature	50	℃	-
	Max. mould temperature	90	℃	-
	Min. melt temperature	260	℃	-
	Max. melt temperature	280	℃	-

Chem

Chemical Media Resistance

Acids

√ Acetic Acid (5% by mass) (23℃)

√ Citric Acid solution (10% by mass) (23℃)

√ Lactic Acid (10% by mass) (23℃)

× Hydrochloric Acid (36% by mass) (23℃)

× Nitric Acid (40% by mass) (23℃)

× Sulfuric Acid (38% by mass) (23℃)

× Sulfuric Acid (5% by mass) (23℃)

× Chromic Acid solution (40% by mass) (23℃)

Bases

× Sodium Hydroxide solution (35% by mass) (23℃)

√ Sodium Hydroxide solution (1% by mass) (23℃)

√ Ammonium Hydroxide solution (10% by mass) (23℃)

Alcohols

√ Isopropyl alcohol (23℃)

√ Methanol (23℃)

√ Ethanol (23℃)

Hydrocarbons

√ n-Hexane (23℃)

√ Toluene (23℃)

√ iso-Octane (23℃)

Ketones

√ Acetone (23℃)

Ethers

√ Diethyl ether (23℃)

Mineral oils

√ SAE 10W40 multigrade motor oil (23℃)

× SAE 10W40 multigrade motor oil (130℃)

× SAE 80/90 hypoid-gear oil (130℃)

√ Insulating Oil (23℃)

Standard Fuels

√ ISO 1817 Liquid 1 (60℃)

√ ISO 1817 Liquid 2 (60℃)

√ ISO 1817 Liquid 3 (60℃)

√ ISO 1817 Liquid 4 (60℃)

√ Standard fuel without alcohol (pref. ISO 1817 Liquid C) (23℃)

√ Standard fuel with alcohol (pref. ISO 1817 Liquid 4) (23℃)

√ Diesel fuel (pref. ISO 1817 Liquid F) (23℃)

√ Diesel fuel (pref. ISO 1817 Liquid F) (90℃)

× Diesel fuel (pref. ISO 1817 Liquid F) (>90℃)

Salt solutions

√ Sodium Chloride solution (10% by mass) (23℃)

× Sodium Hypochlorite solution (10% by mass) (23℃)

√ Sodium Carbonate solution (20% by mass) (23℃)

√ Sodium Carbonate solution (2% by mass) (23℃)

× Zinc Chloride solution (50% by mass) (23℃)

Other

√ Ethyl Acetate (23℃)

× Hydrogen peroxide (23℃)

× DOT No. 4 Brake fluid (130℃)

× Ethylene Glycol (50% by mass) in water (108℃)

√ 1% nonylphenoxy-polyethyleneoxy ethanol in water (23℃)

√ 50% Oleic acid + 50% Olive Oil (23℃)

√ Water (23℃)

× Water (90℃)

× Phenol solution (5% by mass) (23℃)

Symbols used:

√ possibly resistant

Defined as: Supplier has sufficient indication that contact with chemical can be potentially accepted under the intended use conditions and expected service life. Criteria for assessment have to be indicated (e.g. surface aspect, volume change, property change).

× not recommended - see explanation

Defined as: Not recommended for general use. However, short-term exposure under certain restricted conditions could be acceptable (e.g. fast cleaning with thorough rinsing, spills, wiping, vapor exposure).