Technical specification for dense color masterbatch for olefin insulation coloring

Author：hlyb Add Time：2016-04-07 15:25:16

1 Scope

This specification specifies the model, requirements, test methods, inspection rules, packaging, marking, transportation and storage of dense color masterbatch for polyolefin insulation coloring (hereinafter referred to as color masterbatch).

2 model

The model of color masterbatch is shown in Table 1.

Table 1 model and color of Masterbatch

Type number	Standard color	Type number	Standard color
YM-1	blue	YM-7	white
YM-2	Orange	YM-8	black
YM-3	green	YM-9	yellow
YM-4	Brown	YM-10	purple
YM-5	ash	YM-11	light green
YM-6	red	-	-

3 requirements and test methods

The requirements and test methods are in accordance with table 2.

Table 2 technical requirements of Color Masterbatch

Items	Indicator	test method
appearance	Uniform particle size: 2.5mm × 2.5mm	Measure with caliper
Medium constant	≤2.35	When f = 1MHz, it is measured by high frequency dielectric loss meter
Dielectric loss tangent	≤10 -4	When f = 1MHz, it is measured by high frequency dielectric loss meter
Tangent of dielectric loss angle after immersion	≤10 -4	When f = 1MHz, it is measured by high frequency dielectric loss meter
Volume resistance Ω· M	≥10 eighteen	GB/T1044
color and lustre	The color difference shall be no less than grade 3 according to iec60304.	GB250
Light fastness	When the neon lamp is irradiated for 120h, the light fastness shall not be lower than grade 4.	GB730
Migration resistance	> grade 4	GB251
Solvent resistance	No migration, no fading	Visual inspection
Stone resistance	No migration, no fading	Visual inspection
Chemical resistance	No migration, no fading	Visual inspection
Fineness of pigment	The pigment particles are uniform and less than 2 μ m	Observe with 400 times microscope
thermal stability	When the temperature is 210 ℃ for 10 min, the color fastness is not lower than grade 3.	GB250

4 inspection rules

4.1 inspection methods and requirements

4.1.1 for the color masterbatch produced by qualified suppliers, the product performance is stable (no quality problem occurs within one year and the product is returned), the inspection shall be conducted in two batches.

4.1.2 each batch of Color Masterbatch supplied by the new manufacturer shall be sampled and inspected. If the sample is qualified for five consecutive times, it shall be transferred to two batches of sampling inspection.

4.1.3 the color masterbatch of the designated manufacturer shall be inspected once, and the unqualified Color Masterbatch shall be sampled and inspected according to the provisions of ￥ supply materials.

4.1.4 for each batch of Color Masterbatch, the quality guarantee or test report of the supplier's material shall be attached.

4.1.5 sampling method

3 bags or more for each batch.

4.2 test items

4.2.1 the detectable items are volume resistivity.

4.2.2 the performance that cannot be tested shall be accepted according to the manufacturer's test report or warranty.

5 packaging and marking

The color masterbatch is sealed with two layers of plastic bags, each bag is 1.25Kg, and the outer bag is marked with color, model and proportion. The outer package is packed in cardboard box, 20kg in a box, and the name, model, manufacturer and production date of the product are indicated on the box.

6 annex

Color Masterbatch shall be delivered with product certificate and quality assurance certificate. The sampling type test report of the legal inspection department shall be attached to the first supply, and the sampling type test report of the legal inspection department of the current year shall be provided once every two years during the normal supply.

7 transportation

The color masterbatch should be loaded and unloaded lightly to avoid the sun and rain. Iron hooks are not allowed to be used to ensure the integrity of the package.

8 storage

The color masterbatch should be stored in a clean and dry place without moisture and high temperature above 50 ℃.

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Technical specification for dense color masterbatch for olefin insulation coloring