POM Asahi Kasei TENAC‑C Z3510

POM Asahi Kasei TENAC‑C® Z3510

POM 日本旭化成 Z3510，高粘度共聚 POM‑C，高分子量，高强度、高刚性，韧性优于普通通用 POM，尺寸稳定性、耐磨、抗蠕变、耐疲劳表现突出。

Main Applications

Automotive: fuel‑pump assemblies, fuel‑caps, seat‑belt components and other interior functional parts requiring high rigidity & dimensional‑stability. Electrical & electronic: gears, bearings and structural parts for washing‑machines, refrigerators, shavers and other household appliances. Precision machinery: high‑precision gears, bearings, cams, screws demanding high‑wear‑resistance and low‑friction. Consumer & industrial goods: window‑frame / shutter parts, toys, game‑console components and industrial fittings with high rigidity & dimensional‑stability requirements。

Physical‑Mechanical‑Thermal‑Electrical Properties

表格

Property Category	Item	Test Standard	Value	Unit
Physical Properties	Density	ISO 1183 / ASTM D‑792	1.41	g/cm³
	Water absorption(24 h)	ASTM D‑570	0.20	%
	MFR (190 ℃ / 2.16 kg)	ISO 1133	2.8	g/10 min
	Molding shrinkage (flow)	ISO 294‑4 / ASTM D‑955	1.6‑2.0	%
	Molding shrinkage (cross‑flow)	ISO 294‑4	1.6‑2.0	%
Mechanical Properties	Tensile modulus	ISO 527‑2	2650	MPa
	Tensile yield stress	ISO 527‑2	63.0	MPa
	Tensile strength (break)	ASTM D‑638	61	MPa
	Elongation at break	ISO 527‑2 / ASTM D‑638	60 / 75	%
	Flexural modulus	ASTM D‑790	2600	MPa
	Flexural strength	ASTM D‑790	88	MPa
	Charpy notched impact 23 ℃	ISO 179/1eA	9.0	kJ/m²
	Izod notched impact 23 ℃	ASTM D‑256	78	J/m
	Rockwell hardness M‑scale	ASTM D‑785	78	—
	Taber abrasion (1000 cycles)	ASTM D‑1044	14	mg
Thermal Properties	HDT (1.8 MPa, unannealed)	ISO 75‑2/A	95.0	℃
	HDT (1.8 MPa, unannealed)	ASTM D‑648	110	℃
	HDT (0.45 MPa, unannealed)	ISO 75‑2/B	156	℃
	HDT (0.45 MPa, unannealed)	ASTM D‑648	158	℃
	CLTE (flow)	ASTM E‑831	1.0×10⁻⁴	cm/cm/℃
	Melting point(DSC)	DSC	165	℃
Flammability	UL94(0.81 mm / 1.50 mm)	UL 94	HB	—

Injection‑Molding Parameters

表格

Process Stage	Parameter	Recommended Range	Unit	Remarks
Pre‑drying	Drying temperature	80‑90	℃	Must dry sufficiently; desiccant dryer recommended, avoid silver‑streaks & bubbles旭化成。
	Drying time	2‑4	h
	Target residual moisture	＜0.15	%
Barrel temperature	Rear zone	180‑200	℃	Narrow processing window, strictly＜220 ℃, overheating releases formaldehyde gas。
	Middle zone	190‑210	℃
	Front zone	195‑215	℃
	Nozzle temperature	190‑210	℃	Slightly lower or close to front‑zone, prevent drooling。
	Melt temperature	195‑215	℃
	Mold temperature	80‑100	℃	Higher mold‑temp improves crystallization, gloss and reduces sink‑marks。
Injection parameters	Injection pressure	80‑130	MPa	Adjust by part geometry & wall‑thickness。
	Hold‑up pressure	40‑80	MPa	Sufficient hold‑pressure to compensate shrinkage。
	Back pressure	0.5‑2.0	MPa	Keep low; excessive back‑pressure causes shear‑overheat degradation。
	Injection speed	Medium	—	Avoid excessive shear heat from too‑fast filling or short‑shot from too‑slow filling。
	Screw speed	50‑100	rpm	Do not over‑spin screw to limit shear heat。
Post‑treatment	Annealing	Optional	—	Normally unnecessary; anneal high‑precision parts to release internal‑stress。
	Barrel residence time	＜20	min	Avoid long‑term high‑temperature retention。
Shutdown procedure	Short‑term stop	Cool barrel below 150	℃	Long‑term shutdown purge barrel with PE / PP。

Note: All data for reference only, subject to official TDS and COA。