Low-temperature and high-impact resistance polypropylene random material

Abstract

The invention provides a low-temperature and high-impact resistance polypropylene random material. A PPR (polypropylene random) pipe comprises the following raw materials in parts by weight: 1.5-3 parts of color masterbatch, 8-20 parts of a toughening agent, 4-20 parts of rigid particles, 73-87.5 parts of PPR, 40-50 parts of a polyolefin resin mixture and 3-10 parts of a modifier. Through addition of an elastomer, the toughness of the low-temperature and high-impact resistance polypropylene random material is improved and thus the rigidity loss of a product is caused; further through addition of the rigid inorganic nanoparticles with the sizes of 5-5000 nanometers, and through surface modification, the compatibility with a base material is improved, the rigidity of the product is improved and the integral effect of the product is ensured.

Description

technical field

[0001] The invention relates to the field of plastic building material production, in particular to a random copolymerization polypropylene material method with low temperature and high impact resistance. Background technique

[0002] Random copolymerized polypropylene (PPR) pipes are widely used in public and civil buildings for cold and hot water transportation, heating, air-conditioning pipes and agricultural irrigation systems. They have excellent heat resistance, impact resistance, hygiene and non-toxicity, heat preservation and energy saving, It has the advantages of long life and hot-melt connection, but due to its insufficient low-temperature toughness, it is very prone to stress-induced cracking, which limits its application field. Contents of the invention

[0003] Aiming at the above problems in the prior art, the present invention provides a random copolymerized polypropylene material method with low temperature and high impact resistance. [0...

Examples

Embodiment 1

[0022] 1.5 parts of masterbatch, 8 parts of ethylene-octene copolymer, ethylene-propylene-butadiene copolymer and styrene-butadiene-styrene ternary block copolymer, 4 parts of rigid particles, and 4 parts of PPR 73 parts, 40 parts of ultra-high molecular weight polyethylene, low density polyethylene, linear low density polyethylene and medium density polyethylene, 3 parts of styrene-based thermoplastic elastomer SBS. Among them, the masterbatch is based on polyethylene, polypropylene or ethylene-vinyl acetate copolymer as the main carrier, after adding dispersant, anti-ultraviolet agent, antistatic agent and carbon black, titanium dioxide, phthalocyanine blue, phthalocyanine green, after Granules formed by extrusion granulation. And the rigid particles are formed by heating, melting and mixing 20-30 parts by weight of inorganic nano-calcium carbonate with a particle size of 5nm-5000nm, 10-15 parts by weight of EVA material, 20-25 parts by weight of aluminum oxide and 30-50 par...

Embodiment 2

[0025] 1.8 parts of color masterbatch, 10 parts of hydrogenated styrene-butadiene-styrene ternary block copolymer, 8 parts of rigid particles, 78 parts of PPR, ultra-high molecular weight polyethylene, low-density polyethylene and linear low The density polyethylene is 42 parts, and the hydrogenated styrene-butadiene block copolymer SEBS is 4 parts. Among them, the masterbatch is based on polyethylene, polypropylene or ethylene-vinyl acetate copolymer as the main carrier, after adding dispersant, anti-ultraviolet agent, antistatic agent and carbon black, titanium dioxide, phthalocyanine blue, phthalocyanine green, after Granules formed by extrusion granulation. The rigid particles are formed by heating, melting and mixing 20-30 parts by weight of inorganic nano-calcium carbonate with a particle size of 5nm-5000nm, 10-15 parts by weight of EVA material, 20-25 parts by weight of aluminum oxide and 30-50 parts by weight of iron oxide.

[0026] Its preparation method is as follow...

Embodiment 3

[0028] Color masterbatch is 2.0 parts, ethylene-propylene-butadiene copolymer, styrene-butadiene-styrene triblock copolymer, hydrogenated styrene-butadiene-styrene triblock copolymer and 15 parts of styrene-isoprene-styrene ternary block copolymer, 10 parts of rigid particles, 80 parts of PPR, medium density polyethylene, high density polyethylene, polypropylene, ethylene propylene copolymer and ethylene octane 45 parts of olefin copolymer and 5 parts of polyolefin plastomer. Among them, the masterbatch is based on polyethylene, polypropylene or ethylene-vinyl acetate copolymer as the main carrier, after adding dispersant, anti-ultraviolet agent, antistatic agent and carbon black, titanium dioxide, phthalocyanine blue, phthalocyanine green, after Granules formed by extrusion granulation.

[0029] The rigid particles are formed by heating, melting and mixing 20-30 parts by weight of inorganic nano-calcium carbonate with a particle size of 5nm-5000nm, 10-15 parts by weight of E...

technical field

[0001] The invention relates to the field of plastic building material production, in particular to a random copolymerization polypropylene material method with low temperature and high impact resistance. Background technique

[0002] Random copolymerized polypropylene (PPR) pipes are widely used in public and civil buildings for cold and hot water transportation, heating, air-conditioning pipes and agricultural irrigation systems. They have excellent heat resistance, impact resistance, hygiene and non-toxicity, heat preservation and energy saving, It has the advantages of long life and hot-melt connection, but due to its insufficient low-temperature toughness, it is very prone to stress-induced cracking, which limits its application field. Contents of the invention

[0003] Aiming at the above problems in the prior art, the present invention provides a random copolymerized polypropylene material method with low temperature and high impact resistance. [0...

Examples

Embodiment 1

[0022] 1.5 parts of masterbatch, 8 parts of ethylene-octene copolymer, ethylene-propylene-butadiene copolymer and styrene-butadiene-styrene ternary block copolymer, 4 parts of rigid particles, and 4 parts of PPR 73 parts, 40 parts of ultra-high molecular weight polyethylene, low density polyethylene, linear low density polyethylene and medium density polyethylene, 3 parts of styrene-based thermoplastic elastomer SBS. Among them, the masterbatch is based on polyethylene, polypropylene or ethylene-vinyl acetate copolymer as the main carrier, after adding dispersant, anti-ultraviolet agent, antistatic agent and carbon black, titanium dioxide, phthalocyanine blue, phthalocyanine green, after Granules formed by extrusion granulation. And the rigid particles are formed by heating, melting and mixing 20-30 parts by weight of inorganic nano-calcium carbonate with a particle size of 5nm-5000nm, 10-15 parts by weight of EVA material, 20-25 parts by weight of aluminum oxide and 30-50 par...

Embodiment 2

[0025] 1.8 parts of color masterbatch, 10 parts of hydrogenated styrene-butadiene-styrene ternary block copolymer, 8 parts of rigid particles, 78 parts of PPR, ultra-high molecular weight polyethylene, low-density polyethylene and linear low The density polyethylene is 42 parts, and the hydrogenated styrene-butadiene block copolymer SEBS is 4 parts. Among them, the masterbatch is based on polyethylene, polypropylene or ethylene-vinyl acetate copolymer as the main carrier, after adding dispersant, anti-ultraviolet agent, antistatic agent and carbon black, titanium dioxide, phthalocyanine blue, phthalocyanine green, after Granules formed by extrusion granulation. The rigid particles are formed by heating, melting and mixing 20-30 parts by weight of inorganic nano-calcium carbonate with a particle size of 5nm-5000nm, 10-15 parts by weight of EVA material, 20-25 parts by weight of aluminum oxide and 30-50 parts by weight of iron oxide.

[0026] Its preparation method is as follow...

Embodiment 3

[0028] Color masterbatch is 2.0 parts, ethylene-propylene-butadiene copolymer, styrene-butadiene-styrene triblock copolymer, hydrogenated styrene-butadiene-styrene triblock copolymer and 15 parts of styrene-isoprene-styrene ternary block copolymer, 10 parts of rigid particles, 80 parts of PPR, medium density polyethylene, high density polyethylene, polypropylene, ethylene propylene copolymer and ethylene octane 45 parts of olefin copolymer and 5 parts of polyolefin plastomer. Among them, the masterbatch is based on polyethylene, polypropylene or ethylene-vinyl acetate copolymer as the main carrier, after adding dispersant, anti-ultraviolet agent, antistatic agent and carbon black, titanium dioxide, phthalocyanine blue, phthalocyanine green, after Granules formed by extrusion granulation.

[0029] The rigid particles are formed by heating, melting and mixing 20-30 parts by weight of inorganic nano-calcium carbonate with a particle size of 5nm-5000nm, 10-15 parts by weight of E...