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Polyurethane Products

Polyol Blends for Refrigerator (LC-A1140)

LC-A1140 is one of the polyol blends specifically designed for producing the insulation layer of refrigerators and freezers using rigid polyurethane foam. It contains all the necessary raw materials and additives for producing rigid polyurethane foam, excluding the blowing agent (recommended blowing agents include cyclopentane and 245fa). After mixing with a blowing agent, LC-A1140 can react with MDI to produce rigid polyurethane foam.

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Polyol Blends

Product Categories

Polyurethane

Fluorine Chemical

Product Features

  • Alkane and hydrofluorocarbon blowing agents with zero ozone depletion potential (ODP) and low global warming potential (GWP).
  • Excellent compatibility.
  • Good foam flowability with minimal surface voids.
  • Wide processing range.
  • Excellent dimensional stability.
  • Low thermal conductivity

Physicochemical Parameters

Item

LC-A1140

Standard

Appearance

 Reddish-brown transparent liquid

Viscosity (25°C) (mPa.s)

700-1500

Q/0600YPU025-2012

Relative Density at 20°C

1.05±0.05

GB/T15223-2008

Hydroxyl Value (mg KOH/g)

450±30

GB/T12008.3-2009

Water Content (%)

1.0-2.5

GB/T12008.3-2009

Laboratory Test Reaction Parameters

  • (Foaming in wooden box: 200*200*200mm)

Material Temperature

20-22 ℃

Room Temperature

20-25 ℃

Stirring Speed

3000 rpm

Stirring Time

6 seconds

Initiation Time

 8±2 seconds

Gel Time

 60±5 seconds

Free Rise Foam Density

 23.5±0.5 kg/m3

Foam Performance

Item

Test Value

Unit

Test Methods

Foam Core Density

30.5

kg/m3

GB/T 6343

Compression Strength∥

0.20

MPa

GB/T 8813

Compression Strength ⊥

0.15

MPa

GB/T 8813

Thermal conductivity (10°C)

19.2

mW/(m·K)

GB/T 10294

Closed-Cell Content

92

Vol%

GB/T 10799

Dimensional stability (-30°C, 24h)

-0.5

Vol%

GB/T 8811

Dimensional stability (+70°C, 24h)

0.5

Vol%

GB/T 8811

  • Note: The foam is prepared through manual mixing in a horizontal mold (mold size: 300*300*100mm), with a mold temperature of 40°C, manual stirring speed: 3000 rpm. If the foam preparation process conditions are different, the test data may vary from these values.

Packing

200KG/Iron drum, 1000KG/IBC barrel or tanker.

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Storage

Recommended storage temperature: 10-30 °C

Shelf life (in sealed container): 6 months

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About Polyurethane Business Department

The products of the polyurethane segment are handled by two subsidiaries of LECRON SHARE, Shandong Lianrunda Supply Chain Management Co., Ltd. and Shandong Lecron Polymer Co., Ltd. The former is responsible for product exports, raw material imports, and supply chain finance, while the latter is responsible for optimizing the existing polyether/polyester production process, shortening production time, improving equipment utilization, and releasing more production capacity.

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We provide detailed product information covering various aspects, including technical specifications, performance indicators, application cases, etc. These materials will help you better understand the characteristics and advantages of our products in order to make wise decisions.

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