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DMD 6630 POLYESTER DMD 6630 polyester thin film-non woven fabrics limpness composite material

Product Description：

　　The product is a three-layer limpness composite material（DMD）made by bonding polyester non woven fabrics (D) on two sides of a layer of polyester thin (M). It possesses excellent electric insulation and heat resistance properties ,mechanical strength. and excellent dripping properties, and is suitable for the use as through insulation, phase-to-phase, turn-to-turn and gasket insulations in y-series motor and electric appliance; it belongs to B insulation material. 6630 is harder and is suitable for manual embedding process. Applicable prompt; trough insulation ,gasket and turn-to-turn insulations whish are suitable for mechanical embedding line B class motor can also be used for coil insulation of electric appliance. The performance of limpness composite material is different of nominal thickness of the film used(main performance includes mechanical strength ,breakthrough voltage, limpness and deflection). The users must indicate the thin film’s nominal thickness and product specification.

Table1(unit; mm):

Producet model	Nominal thickeness/mm	Usage
6630	0.05	The material consists of electric insulation one with high dielectric performance which is bonded by two layer of polyester non fabrics with thickness of 0.050mm and polyester thin film,and is suitable for the technological process of mechanical embedding line insulation.
6630A	0.05~0.10	It is according to the more soft electric insulationg material needed for the users,and suitable for the technological process of manual embedding line insulantion.

Table2(DMD 6630)：

Order number	Name of indexes			Unit	Index Value
1	Nominal thickness			mm	0.15	0.18	0.20	0.23	0.25	0.30	0.35	0.40	0.45
2	Allowable deviaion of thickness			mm	±0.020	±0.025	±0.030				±0.035	±0.040	±0.045
3	Nominal quota and allowable deviation			g/m²	140±20	190±28	220±33	260±39	300±45	350±52	425±63	500±75	560±84
4	Thin film nominal thickness			μm	50	75	100	125	150	190	250	300	350
5	Tensile strength≥	Longitudel	Not bending	N/10mm	80	75	140	180	190	270	320	340	370
			Not bending		80	105	120	150	170	200	300	320	350
			After bending		80	105	120	150	170	200	300	320	350
			After bending		70	90	100	120	130	150	200	220	250
6	Extensibility≥	Lateral	Not bending	%	15					－		－
			Not bending		10					5		3
			After bending		20					－		－
			After bending		10					5		2
7	Breakthrough voltage≥			Kv	6	7	9	10	12	15	18	20	22
8	Bond strength at room temo			－	Not laminating
9	Cohesiceness at normal state （155±2°C/10min）			－	Not laminating、not bubbing、not flowing glue