High-toughness polyvinyl chloride tube
A technology of polyvinyl chloride and chlorinated polyvinyl chloride, which is applied in the direction of rigid pipes, pipes, pipes/pipe joints/fittings, etc., and can solve the problem of reduced impact strength of rigid polyvinyl chloride plastic drainage pipes and impact resistance of PVC pipes Poor, tensile strength decline and other problems, to achieve the effect of improving aging resistance, improving smoothness of lubrication, and improving toughness
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[0016] Prepare each component according to the weight ratio shown in Table 1.
[0017] Table 1 The weight ratio of Example 1 to Example 3
[0018]
[0019]
[0020] The chlorine content of the above-mentioned chlorinated polyvinyl chloride resin is 61-65%.
[0021] The aforementioned stabilizer is an organotin stabilizer.
[0022] The above lubricant is in paraffin polyethylene wax.
[0023] The aforementioned colorant is carbon black.
[0024] The preparation method of the above-mentioned high toughness polyvinyl chloride pipe is:
[0025] S1: Weigh each component in proportion, mix it evenly at a temperature of 90~110℃, and keep it for 20 minutes;
[0026] S2: Add the mixture obtained from S1 to the conical twin-screw extruder. The temperature of the machine is 150℃, 180℃ in the first zone; 190℃ in the second zone; 195℃ in the third zone; 200℃ in the fourth zone; 210℃ in the fifth zone; 30rpm; the feeder speed is 20rpm;
[0027] S3: Vacuum sizing, forming and cutting.
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