Method for molding low-temperature-resistant high-strength polyethylene pipe applied to water supply
A technology for polyethylene pipes and molding methods, which is applied in applications, household appliances, tubular objects, etc., can solve the problems of poor surface smoothness of pipes, large particle size of black masterbatch, rupture of pressure pipes, etc., and achieve hydraulic strength and pipe resistance Improvement of aging performance, improvement of strength and low temperature resistance, and improvement of impact strength of pipes
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Embodiment 1
[0019] A molding method of low-temperature high-strength polyethylene pipe for water supply includes the following steps:
[0020] (1) The pipe includes the following parts by weight: 100 parts of polyethylene, 20 parts of polyolefin, 10 parts of CPVC resin, 1 part of polyvinyl chloride resin, 1 part of barium laurate, 1 part of ACR-201, titanium 5 parts of white powder, 1 part of talc, 0.5 parts of antioxidant 1010; 0.5 parts of antioxidant 1076; the particle size of titanium dioxide is 10nm;
[0021] (2) Vacuum treatment of polyethylene, polyolefin, CPVC resin and polyvinyl chloride resin;
[0022] (3) Add polyethylene and polyolefin to the mixing pot at low speed, start high-speed mixing, add CPVC resin and polyvinyl chloride resin to the mixing pot at 70℃, add barium laurate at 80℃, Add ACR-201, titanium dioxide and talc at 110℃; the speed of high-speed mixing is 430rpm;
[0023] (4) Use a conical twin-screw extruder to extrude into pipes, the barrel temperature is controlled at ...
Embodiment 2
[0025] A molding method of low-temperature high-strength polyethylene pipe for water supply includes the following steps:
[0026] (1) The pipe includes the following components in parts by weight: 100 parts of polyethylene, 27 parts of polyolefin, 13 parts of CPVC resin, 4 parts of polyvinyl chloride resin, 2 parts of barium laurate, 1.4 parts of ACR-201, titanium 8 parts of white powder, 2.7 parts of talc powder, 1.6 parts of antioxidant 1010; the particle size of titanium dioxide is 16nm;
[0027] (2) Vacuum treatment of polyethylene, polyolefin, CPVC resin and polyvinyl chloride resin;
[0028] (3) Add polyethylene and polyolefin to the mixing pot at low speed, start high-speed mixing, add CPVC resin and polyvinyl chloride resin to the mixing pot at 70℃, add barium laurate at 80℃, Add ACR-201, titanium dioxide, and talc at 110℃; the speed of high-speed mixing is 500rpm;
[0029] (4) Use a conical twin-screw extruder to extrude into pipes, the barrel temperature is controlled at 1...
Embodiment 3
[0031] A molding method of low-temperature high-strength polyethylene pipe for water supply includes the following steps:
[0032] (1) The pipe includes the following components in parts by weight: 100 parts of polyethylene, 30 parts of polyolefin, 20 parts of CPVC resin, 5 parts of polyvinyl chloride resin, 3 parts of barium laurate, 2 parts of ACR-201, titanium 10 parts of white powder, 3 parts of talc powder, 2 parts of antioxidant 1076; the particle size of titanium dioxide is 20nm;
[0033] (2) Vacuum treatment of polyethylene, polyolefin, CPVC resin and polyvinyl chloride resin;
[0034] (3) Add polyethylene and polyolefin to the mixing pot at low speed, start high-speed mixing, add CPVC resin and polyvinyl chloride resin to the mixing pot at 70℃, add barium laurate at 80℃, Add ACR-201, titanium dioxide, and talc at 110℃; the speed of high-speed mixing is 860rpm;
[0035] (4) Use a conical twin-screw extruder to extrude into a tube, the barrel temperature is controlled at 150℃,...
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