Heat aging resistant polyvinyl chloride pipe and preparation method thereof
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A polyvinyl chloride, heat-resistant aging technology, applied in the field of PVC materials and its preparation, can solve the problems of poor thermal stability, aging resistance, reduced service life, and deterioration of mechanical properties, and achieve excellent heat aging resistance and excellent wear resistance properties, high tensile strength and elongation at break
Inactive Publication Date: 2014-11-12
六安市协诚车辆配件有限公司
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At present, the PVC pipes on the market have the disadvantages of poor thermal stability and aging resistance, and are prone to deterioration of mechanical properties and structural aging at higher temperatures, which greatly reduces their service life. Therefore, it is urgent to develop a heat-resistant aging PVC pipe. Vinyl pipes to meet market requirements
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[0014] A heat-resistant aging polyvinyl chloride pipe is made of the following raw materials in weight (kg): SG-5 type PVC resin 45, polyamideimide 35, barium cadmium zinc composite stabilizer 2, E wax 5, tertiary ten Dialkyl mercaptan 3.5, Isooctyl thioglycolate 7, Brominated polystyrene 17, Poly-4-methyl-1-pentene 13, Glyceryl monostearate 4, Scorched gemstone powder 12, Beryllium oxide 4 , asbestos powder 8, tris (xylene) phosphate 9, mannitol 2.5, trimethylsilyl crotonate 6, boron acylate 3.5, cadmium ricinoleate 2, lead ricinoleate 1.5, dipropylene glycol two Paraben 12, trimethyl citrate 10, composite nanopowder 18;
[0015] The preparation method of the composite nanopowder is as follows: a. Weigh dolomite, celestite and medical stone in a ratio of 8:6:3 by weight, mix well, calcinate at 880° C. for 1 hour, cool to room temperature, pulverize, and sieve , stand-by, b, take 5 times the weight of the powder obtained in step a, the solid content is 40% of silica sol, ...
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Abstract
The invention discloses a heat aging resistant polyvinyl chloride pipe and a preparation method thereof. The heat aging resistant polyvinyl chloride pipe is prepared from the following raw materials in parts by weight: 35-55 parts of SG-5 PVC resin, 25-45 parts of polyamideimide, 1.5-2.5 parts of a cadmium-barium-zinc compound stabilizer, 4-6 parts of E wax, 2.5-4.5 parts of tert-dodecylmercaptan, 6-9 parts of ethylhexyl thioglycolate, 15-20 parts of brominated polystyrene, 10-15 parts of poly-4-methyl-1-amylene, 3-5 parts of glyceryl monostearate, 10-15 parts of flint clay powder, 3-6 parts of beryllium oxide, 5-10 parts of asbestos powder, 7-11 parts of phosphate tri(xylene) ester, 2-3 parts of mannitol, 4-8 parts of trimethylsilyl crotonate, 2.5-4.5 parts of cobalt boroacylate, 1.5-2.5 cadmium ricinoleate, 1-2 parts of lead ricinoleate, 10-15 parts of dipropylene glycol dibenzoate, 8-12 parts of trimethyl citrate and 15-20 parts of composite nanometer powder. The PVC pipe disclosed by the invention is excellent in heat aging resistance, still can keep high tensile strength and elongation at break at a high temperature, has excellent abrasive resistance, chemical resistance and environmental crack resistance, and is durable and wide in application prospect.
Description
technical field [0001] The invention relates to a PVC material and a preparation method thereof, in particular to a heat-resistant aging polyvinyl chloride pipe material and a preparation method thereof. Background technique [0002] Polyvinyl chloride (PVC) has excellent comprehensive properties such as flame retardant, insulation, corrosion resistance, high strength and low price, and is widely used in the production of plastic pipes. In recent years, with the rapid development of science and technology, the performance requirements of PVC pipes have become higher and higher. At present, the PVC pipes on the market have the shortcomings of poor thermal stability and aging resistance. At higher temperatures, mechanical properties and structural aging are prone to deteriorate, which greatly reduces their service life. Therefore, it is urgent to develop a heat-resistant aging polychlorine vinyl pipes to meet market requirements. SUMMARY OF THE INVENTION [0003] The p...
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