Novel heat-resistant PVC profile and preparation method thereof
A technology of PVC resin powder and profiles, which is applied in the field of new heat-resistant PVC profiles and its preparation, can solve problems such as poor heat resistance, and achieve improved heat resistance, little change in impact strength and tensile strength, and excellent overall performance Effect
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[0018] Example 1:
[0019] 100 parts of PVC resin, 5 parts of heat-resistant modifier, 3.8 parts of stabilizer, calcium carbonate (CaCO 3 ) 18 parts, 9 parts of toughening agent, 0.5 part of processing modifier, 5 parts of titanium dioxide, and 0.7 part of lubricant; mix and discharge the above ingredients; add the pre-mixed dry powder in the above steps into the extruder Production of profiles; high-speed stirring, when the temperature reaches 110 °C, stir for 4 minutes, enter the cold mixer to 45 °C and discharge; the temperature settings of each zone of the extruder: 150 °C in the conveying section, 170 °C in the compression section, 180 °C in the melting section, Head 175°C.
Example Embodiment
[0020] Example 2:
[0021] 100 parts of PVC resin, 10 parts of heat-resistant modifier, 4.3 parts of stabilizer, calcium carbonate (CaCO 3 ) 16 parts, 10 parts of toughening agent, 0.7 part of processing modifier, 6 parts of titanium dioxide, 0.8 part of lubricant; mix and discharge the above various components; add the pre-mixed dry powder in the above steps into the extruder Production of profiles; high-speed stirring, when the temperature reaches 110 °C, stir for 4 minutes, enter the cold mixer to 45 °C and discharge; the temperature settings of each zone of the extruder: 150 °C in the conveying section, 170 °C in the compression section, 180 °C in the melting section, Head 175°C.
Example Embodiment
[0022] Example 3:
[0023] 100 parts of PVC resin, 15 parts of heat-resistant modifier, 4.9 parts of stabilizer, calcium carbonate (CaCO 3 ) 13 parts, 10 parts of toughening agent, 0.9 part of processing modifier, 7 parts of titanium dioxide, 0.1.1 part of lubricant; mix and discharge the above-mentioned various components; add the pre-mixed dry powder in the above steps into extrusion Profiles are produced in the machine; high-speed stirring, when the temperature reaches 110 °C, stir for 4 minutes, then enter the cold mixer to 45 °C for discharge; the temperature settings of each zone of the extruder: 150 °C in the conveying section, 170 °C in the compression section, and 180 °C in the melting section ℃, head 175℃.
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