Low-halogen flame retarding PVC (Polyvinyl Chloride) pipe material and preparing method thereof

Abstract

The invention discloses a low-halogen flame retarding PVC (Polyvinyl Chloride) pipe material. The low-halogen flame retarding PVC pipe material comprises the following ingredients in part by weight: 80-120 parts of polyvinyl chloride resin in a grain diameter of 0.1-0.2mm, 20-40 parts of calcium carbonate in a grain diameter of 300-500 mesh, 5-15 parts of an impact modifier ABS, 2-5 parts of a sulfur-containing organic tin salt thermal stabilizer, 0.5-2 parts of lubricant oxidized polyethlene wax, 2-5 parts of structure modified aluminum hydroxide in a grain diameter of 100-150 nanometer, 1-3 parts of magnesium hydroxide in a grain diameter of 1-10 microns and 0.5-2 parts of an auxiliary flame retardant. The low-halogen flame retarding PVC pipe material has excellent flame retarding performance, and the flame retarding oxygen index can reach more than 40. The low-halogen flame retarding PVC pipe has great rigidity, and excellent thermal resistance and ageing resistance. The invention further discloses a preparing method for the PVC pipe material. The preparing method has the advantages of low requirement on equipment, low manufacture cost and simple processing technology.

Description

technical field [0001] The invention belongs to the technical field of polyvinyl chloride composite materials, and in particular relates to a low-halogen flame-retardant PVC pipe material, and also relates to a preparation method of the PVC pipe material. Background technique [0002] At present, polyvinyl chloride products occupy a considerable proportion in construction, transportation, electronic appliances, and household daily necessities. We all know. Polyvinyl chloride itself is flame retardant and made of soft and hard products by adding various additives to make it non-flammable. Once it catches fire, it will cause the flame to spread rapidly and expand thick smoke and poisonous gas, which will bring harm to fire fighting and people's lives and property. to a huge loss. Therefore, endowing high polymer products with flame retardancy has become a top priority. Many countries have formulated various flame retardant standards for polymer materials. It is stipulated ...

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Problems solved by technology

If the flame retardant formula is unreasonable, the flame retardant effect is not ideal. If the flame retardant performance is improved by increasing the amoun

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