Plastic pipe machined by using bulk molding compounds
A technology of bulk molding compound and plastic pipe, which is applied in the field of pipelines, can solve the problems of inability to prepare large-diameter pipes, high cost, inconvenient processing and installation, etc., and achieve good application prospects, low cost, and improved impact resistance.
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Embodiment 1
[0029] Formulated by weight ratio: 36 parts of phthalic anhydride-propylene glycol unsaturated polyester, 0.3 parts of cobalt naphthenate, 0.2 parts of methyl ethyl ketone peroxide, 30 parts of 500 mesh and 200 mesh calcium carbonate mixed by weight at 1:1. 0.2 part of electrostatic agent, 0.1 part of antioxidant, 0.2 part of pentabromophenol, which are mixed uniformly with a mixer to obtain a resin paste.
[0030] The prepared resin paste is soaked in a kneader with 28 parts by weight of alkali-free and twist-free glass roving. The glass roving is added within 5 minutes, kneaded for 15 minutes and mixed evenly.
[0031] Extruding the dough infiltrated with glass roving with an extruder, sealing and packaging with polyethylene film, and placing it in a dry environment at room temperature for 24 hours to obtain unsaturated fiber-reinforced agglomerated molding compound.
Embodiment 2
[0033] Formulated by weight ratio: 45 parts of phthalic anhydride-propylene glycol unsaturated polyester, 0.4 parts of cobalt naphthenate, 0.3 parts of methyl ethyl ketone peroxide, 30 parts of 500 mesh calcium carbonate, 0.2 parts of antistatic agent, 0.12 parts of antioxidant , 0.2 parts of pentabromophenol, mix it evenly with a mixer to obtain a resin paste.
[0034] The prepared resin paste is soaked in a kneader with 28 parts by weight of alkali-free and twist-free glass roving. The glass roving is added within 5 minutes, kneaded for 15 minutes and mixed evenly.
[0035] Extruding the dough infiltrated with glass roving with an extruder, sealing and packaging with polyethylene film, and placing it in a dry environment at room temperature for 24 hours to obtain unsaturated fiber-reinforced agglomerated molding compound.
Embodiment 3
[0037] Formulated by weight ratio: 40 parts of isophthalic acid-diethylene glycol unsaturated polyester, 0.4 parts of cobalt naphthenate, 0.3 parts of methyl ethyl ketone peroxide, 30 parts of 500 mesh calcium carbonate, 0.2 parts of antistatic agent, antistatic 0.12 parts of oxygen agent and 0.2 parts of pentabromophenol are mixed uniformly with a mixer to obtain a resin paste.
[0038] The prepared resin paste was soaked in a kneader with 30 parts by weight of carbon fiber, and the carbon fiber was added within 5 minutes, and kneaded for 15 minutes and mixed uniformly.
[0039] The material mass impregnated with carbon fiber is extruded with an extruder, sealed and packaged with polyethylene film, and placed in a dry environment at room temperature for 24 hours to obtain an unsaturated fiber-reinforced mass molding compound.
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