Raw materials for preparing corrugated dual-wall hard PVC pipe
The technology of double-wall corrugated pipes and rigid PVC is applied in the field of materials for preparing rigid PVC double-wall corrugated pipes, and can solve the problems of defective products, increased scrap rate, increased mold damage, and reduced product qualification rate, etc. Achieve the effects of good long-term heat resistance, improved pass rate, and increased Vicat softening temperature
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Embodiment 1
[0022] Present embodiment material adopts following formula (weight unit):
[0023] Polyvinyl chloride 100 Trisalt 6.4
[0024] Lead stearate 0.42 Barium stearate 1.4
[0025] Stearic acid 0.42 Microcrystalline paraffin 0.36
[0026] Polyethylene Wax 0.58 ACR(401) 1.9
[0027] Chlorinated polyethylene 5.8 Superfine calcium carbonate 9
[0028] AC316 0.28
[0029] The formulation of this example is suitable for resins with excellent thermal stability, plasticizing efficiency and fluidity, such as Qilu resin in my country. In this formulation, less stabilizers, lubricants, processing modifiers can be used to maintain normal production.
Embodiment 2
[0031] Present embodiment material adopts following formula (weight unit):
[0032] Polyvinyl chloride 100 Triple salt 6.5
[0033] Lead stearate 0.45 Barium stearate 1.6
[0034] Stearic acid 0.45 Microcrystalline paraffin 0.4
[0035] Polyethylene Wax 0.6 ACR(401) 2.0
[0036] Chlorinated Polyethylene 6.0 Superfine Calcium Carbonate 10
[0037] AC316 0.3
Embodiment 3
[0039] Present embodiment material adopts following formula:
[0040] Polyvinyl chloride 100 Triple salt 6.8
[0041] Lead stearate 0.47 Barium stearate 1.7
[0042] Stearic acid 0.47 Microcrystalline paraffin 0.41
[0043] Polyethylene Wax 0.62 ACR(401) 2.1
[0044] Chlorinated polyethylene 6.3 Superfine calcium carbonate 11
[0045] AC316 0.33
[0046] The above-mentioned embodiments 2 and 3 are aimed at resins with relatively poor stability, such as resins produced in Xuzhou and Suzhou in my country. Due to the lack of self-lubricating properties, it is necessary to add more stabilizers, lubricants, and processing modifiers. However, when adding more modifiers, the amount of filler can be appropriately increased to reduce costs.
[0047] For the material of the present invention, adopt following production technique:
[0048] 1. According to the formula applicable to different resins, various materials are formulated into mixtures.
[0049] 2. Put the mixture into ...
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