Polyurethane Water Heater Polyether Polyol for Blend Polyether Polyol System

• CAS No.: 9016-87-9
• Appearance: Liquid
• Grade Standard: Industrial Grade
• Colour: Brown
• Viscosity 25ºC,MPa.S: 400±50
• Hydroxy Value Mgkoh/G: 380-20
• Model NO.: ZHD-8002WH
• Specific Gravity 25ºC: 1.1±0.5
• Component Temperature: 20-23ºC
• Transport Package: Steel Drum/IBC Drum/Tank
• Specification: 200kgs/Drum
• Trademark: Huide
• Origin: Zibo, China
• HS Code: 3907299090
• Production Capacity: 100, 000tons/Year

Product Description

Blend Polyols for Water Heater Insulation

1.General description

Blend Polyol ZHD-8002WH Series is a semi resin premix combined polyol, based on polyether polyol, formulated with catalyst,blowing agent,stabilizing agents and other additves(if necessary) according to a parameter.It is the mixture of polyol.

2.Simple introduction (product features)

1)excellent flowability

2)foam density distribute uniformity                             

3)low thermal conductivity                                                                       

4)excellent low temperature dimensional stability

3.Technical Quality Conditions:

3-1 Physical characteristics

                                                                                       
Item                            Unit                    Index
                                                                                       
Appearance           light yellow   transparent liquid
Viscosity           25ºC,mPa.S                400±50
Hydroxy Value       mgKOH/g                 380-20
Specific gravity         25ºC             1.1±0.5
                                                                                       

3-2 Process and reactive characteristics( actual value varied depends on the processing conditions)

3-3-1 Foaming condition

3-3-1.1 Manual mixing

Component temperature:20-23ºC

Mixing speed:5000rpm/8 sec

3-3-1.2 Machine

Demould time:8 min

Component temperature: 22-25ºC

 3-3-1.3 Recommended processing property

Product Item		HD01	HD02
Blowing agent	type	HCFC-141b	WATER
Free rise density	Kg/m3	24-26	32~34

Note: ratio varied depends on processing system

3-4 Foam characteristics

ITEM			PROPERTY
Apparent core density (kg/m3)                         ≥			30-40
Initial Thermal conductivity (W/m.k)                     ≤			0.024
Compressive strength                                 ≥			130
Closed-cell rate  (%)                                 ≥			90
water absorption  (V/V) %                            ≤			5
Dimensional stability(%)	Low temperature (-30±3ºC,24hs)	≤	1
	High temperature (100±3ºC,48hs)	≤	1.5
Moisture vapour transmission 38ºC,RHO-88%	Ng/Pa.m.s	≤	6.5 or by negociation

 4. Main Applications:

Rigid PU foam cores for insulation of water heaters in combination with isocyanate (MDI).

5.PACKING SPECIFICATION
200-220KGS/drum, blue paint  drums (Drum Weight: 18 kgs)

6.STORAGE RECOMMENDATIONS
The blend polyol should be stored in the sealed container to avoid the absorption of water vapor. During the transportation, it should avoid serious shake and strong sunlight. It should be stored in ventilated place, avoiding light, water and fire. Recommended storage temperature is 15~25ºC

7.SAFTY PRECAUTIONS
Skin allergies may result from moderate skin irritation and minor eye irritation caused by direct contact with ZHD-8002WH type mix polyol. Respiratory allergies can be brought on by repeatedly breathing in large concentrations of volatile gas; this needs to be addressed right away. Treatment with anti-inflammatory and anti-allergic medications is recommended. Please use caution during the procedure to avoid skin contact and splashing into the eyes. You should also wear the appropriate safety gear, such as gloves, goggles, and work clothing. After splattering on the skin or an eye, immediately rinse the area with water for a minimum of fifteen minutes, and then wash the skin with soapy water. Please get medical attention as soon as possible after swallowing.