High-filling highly-pressure-resistant U-PVC water supply pipe fitting
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A technology for water supply pipe fittings and high-speed mixers, which is applied in the direction of pipes/pipe joints/fittings, pipes, rigid pipes, etc., which can solve the problems of pressure resistance, physical and mechanical performance degradation, silver cracks, etc., and improve interface compatibility , good stability, high pressure and high effect
Active Publication Date: 2014-08-20
YONGGAO CO LTD
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The particle size of the filler is too large or the filler is agglomerated into particles with a larger particle size. When the external force is applied, it will often become the stres
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Embodiment 1
[0026] The raw materials in the following parts by mass are uniformly mixed by a high-speed mixer, and then molded by an injection molding machine at a processing temperature of 160~190°C into a U-PVC water supply pipe fitting with a Φ75mm (inner diameter) tee for water supply of the national standard GBT10002.2.
[0038] 20 parts of superfine activated calcium carbonate;
Embodiment 2
[0051] The raw materials in the following parts by mass are uniformly mixed by a high-speed mixer, and then injection molded by an injection molding machine at a processing temperature of 160~190°C into a Φ50mm (inner diameter) tee for water supply according to American Standard ASTM D2466-02.
[0061] 30 parts of superfine activated calcium carbonate;
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Abstract
A high-filling highly-pressure-resistant U-PVC water supply pipe fitting is provided. Raw materials are uniformly mixed by a mixer, and subjected to injection moulding at 160-190 DEG C. The raw materials comprise 100 parts by weight of polyvinyl chloride resin, 1-10 parts by weight of a heat stabilizer, 0.1-4 parts by weight of a lubricant, 0-5 parts by weight of a processing modifier, 0-8 parts by weight of a shock-resistant modifier, 1-10 parts by weight of a compatilizer, and 5-50 parts by weight of a filing agent, with pigments not included. The heat stabilizer is one or more of organo-tin, a calcium-zinc composite heat stabilizer, and an organic or inorganic heat stabilizer. The lubricant is one or more selected from stearic acid and derivatives thereof, metallic soap, polyesters or a saturated hydrocarbon lubricant. The processing modifier is one or more of a processing modifier with ultra-high molecular weight or a common processing modifier. The anti-shock modifier is one or more of a scheduled elastomer anti-shock modifier, an unscheduled elastomer anti-shock modifier or a transitional anti-shock modifier. The compatilizer is one of maleic anhydride grafted polypropylene, silane grafted polypropylene, glycidyl methacrylate grafted polypropylene or methacrylic acid grafted polypropylene.
Description
technical field [0001] The invention relates to a U-PVC water supply pipe fitting, in particular to a U-PVC water supply pipe fitting with high filling and high pressure resistance. Background technique [0002] Polyvinyl chloride, as an earlier thermoplastic variety, has become one of the five general-purpose plastics due to its unique characteristics of flame retardancy, wear resistance, weather resistance, chemical corrosion resistance and good mechanical properties. It is closely related and is an indispensable and important material. In recent years, with the development of the construction industry and the plastic processing industry, rigid polyvinyl chloride (U-PVC) products have shown rapid development, and the proportion of rigid products has continued to increase. Now the proportion of rigid products is nearly 60%. According to relevant statistics, at present, among enterprises with a production scale of more than 10,000 tons / year, only a few manufacturers mainly ...
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