PO-4490
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Features and main uses：
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PO-4490 is an o-benzene type unsaturated polyester resin with high reactivity. Its products have good heat resistance, excellent mechanical properties and good weather resistance. It is widely used in the production of SMC / BMC, water tank, automobile parts and other products.
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Technical index of liquid resin:
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Project
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Company
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Index
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Test Method
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Appearance
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...
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Light yellow liquid
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...
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Viscosity（23℃）
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Pa?s
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0.9~1.1
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A041
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Acid value
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mgKOH/g
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15.0~19.0
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K061
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High temperature gel time（80℃）
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min
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7.0~9.0
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G041
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High temperature curing time（80℃）
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min
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8.0~11.0
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G042
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Maximum exothermic peak at high temperature
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℃
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240~260
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G043
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Moisture content
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%
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Less than 0.1%
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K090
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Physical properties of casting body:
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Project
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Company
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Measured value
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Test Method
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Tensile strength
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MPa
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48.8
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GB/T2567-95
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Tensile modulus of elasticity
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MPa
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3430
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GB/T2567-95
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Breaking extensibility
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...
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1.58%
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GB/T2567-95
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Bending strength
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MPa
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80.6
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GB/T2567-95
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Bending modulus of elasticity
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MPa
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4010
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GB/T2567-95
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Impact strength
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KJ/m2
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5.0
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GB/T2567-95
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Hot deformation temperature
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℃
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120
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GB/T1634-89
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Barcol hardness
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...
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48
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GB/T3854-83
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Note: 1. The preparation method is in accordance with GB / T8237-2005, curing system: Accelerator RCA 1.0%, curing agent Butanox M-50 1.0%.
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2. Casting body post-treatment: room temperature×24 hours + 60 ℃×3 hours + 120 ℃×1 hours.
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Matters needing attention:
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1. Due to the high temperature in summer, please add proper amount of polymerization inhibitor to ensure the storage stability of SMC / BMC.
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2. The product should be stored in a cool place below 25 ℃ to avoid fire and keep away from heat and radiation sources. The shelf life of products stored below 25 ℃ is 3 months.
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In view of the diversity of application conditions, it is necessary for users to confirm the product performance. If you have any questions about the contents of this information or want to know more information, please contact our company. We reserve the right to modify the data.
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http://m.xxzxmr.com/en/chanpinzhongxin_v227.html
