Manufacturing method of PP (polypropylene) double-wall corrugated pipe
A double-wall corrugated pipe and a production method technology, applied in the field of engineering plastics processing and manufacturing, can solve the problems of low quality of the double-wall corrugated pipe, ring rigidity, poor ring flexibility, unstable output, etc., and achieve high ring stiffness and ring flexibility. The effect of increasing and plasticizing effect is good
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[0019] Example 1: A manufacturing method of PP double-wall corrugated pipe, including the following steps in sequence:
[0020] Step 1: Prepare materials in parts by weight,
[0021] The outer wall tube is composed of the following parts by weight of raw materials:
[0022] Polypropylene resin: 50-60 parts, recycled materials: 4-7, fixed filler: 20-40 parts, stearic acid: 4-5 parts, desiccant: 3-5 parts, black master: 2-5 parts, Talc: 5-10 parts;
[0023] The inner wall tube is composed of the following parts by weight of raw materials:
[0024] Polypropylene resin: 45 to 65 parts, recycled materials: 4 to 7, fixed fillers: 20 to 40 parts, stearic acid: 4 to 5 parts, desiccant: 3 to 5 parts, blue master: 2 to 5 parts , Talc: 5-10 parts.
[0025] Step 2: Double mixing, put the above-mentioned outer wall pipe and inner wall pipe preparation into a double mixer for mixing, which are divided into two types: inside and outside;
[0026] Vacuum feeding, regular and quantitative forced feeding...
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