CN114933762A - High-leakage-tracking high-glow-wire PP (polypropylene) material - Google Patents
High-leakage-tracking high-glow-wire PP (polypropylene) material Download PDFInfo
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- CN114933762A CN114933762A CN202210596246.4A CN202210596246A CN114933762A CN 114933762 A CN114933762 A CN 114933762A CN 202210596246 A CN202210596246 A CN 202210596246A CN 114933762 A CN114933762 A CN 114933762A
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- flame retardant
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- 239000000463 material Substances 0.000 title claims abstract description 39
- -1 polypropylene Polymers 0.000 title claims abstract description 13
- 239000004743 Polypropylene Substances 0.000 title abstract description 46
- 229920001155 polypropylene Polymers 0.000 title abstract description 7
- 239000003063 flame retardant Substances 0.000 claims abstract description 67
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims abstract description 65
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 41
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 41
- 239000010703 silicon Substances 0.000 claims abstract description 41
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 claims abstract description 32
- 239000012745 toughening agent Substances 0.000 claims abstract description 20
- YUWBVKYVJWNVLE-UHFFFAOYSA-N [N].[P] Chemical compound [N].[P] YUWBVKYVJWNVLE-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims abstract description 16
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims abstract description 16
- 239000000314 lubricant Substances 0.000 claims abstract description 15
- 239000002994 raw material Substances 0.000 claims abstract description 13
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 11
- 229910019142 PO4 Inorganic materials 0.000 claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 10
- 239000010456 wollastonite Substances 0.000 claims abstract description 10
- 229910052882 wollastonite Inorganic materials 0.000 claims abstract description 10
- 150000003013 phosphoric acid derivatives Chemical class 0.000 claims abstract description 9
- 229920000877 Melamine resin Polymers 0.000 claims abstract description 8
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims abstract description 8
- FQENQNTWSFEDLI-UHFFFAOYSA-J sodium diphosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])([O-])=O FQENQNTWSFEDLI-UHFFFAOYSA-J 0.000 claims abstract description 8
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims abstract description 8
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims abstract description 8
- 229940048086 sodium pyrophosphate Drugs 0.000 claims abstract description 8
- 235000019818 tetrasodium diphosphate Nutrition 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 239000001488 sodium phosphate Substances 0.000 claims abstract description 7
- 235000011008 sodium phosphates Nutrition 0.000 claims abstract description 7
- 239000000843 powder Substances 0.000 claims abstract description 5
- 238000013329 compounding Methods 0.000 claims abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 14
- 239000000377 silicon dioxide Substances 0.000 claims description 7
- 235000021317 phosphate Nutrition 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 claims description 6
- 229910000160 potassium phosphate Inorganic materials 0.000 claims description 3
- 235000011009 potassium phosphates Nutrition 0.000 claims description 3
- 125000000123 silicon containing inorganic group Chemical group 0.000 claims description 3
- 229910000162 sodium phosphate Inorganic materials 0.000 claims description 3
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical group [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 2
- 239000011707 mineral Substances 0.000 claims description 2
- 235000010755 mineral Nutrition 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 4
- 238000005204 segregation Methods 0.000 abstract description 3
- 230000000704 physical effect Effects 0.000 description 6
- 238000000354 decomposition reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005469 granulation Methods 0.000 description 4
- 230000003179 granulation Effects 0.000 description 4
- 235000012239 silicon dioxide Nutrition 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 3
- 239000010452 phosphate Substances 0.000 description 3
- 238000005215 recombination Methods 0.000 description 3
- 230000006798 recombination Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 230000009977 dual effect Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- VYDNCCLNAHRIST-UHFFFAOYSA-N 13827-38-8 Chemical compound O1P(=O)(O2)O[Si]31OP2(=O)O3 VYDNCCLNAHRIST-UHFFFAOYSA-N 0.000 description 1
- VXEGSRKPIUDPQT-UHFFFAOYSA-N 4-[4-(4-methoxyphenyl)piperazin-1-yl]aniline Chemical compound C1=CC(OC)=CC=C1N1CCN(C=2C=CC(N)=CC=2)CC1 VXEGSRKPIUDPQT-UHFFFAOYSA-N 0.000 description 1
- 239000004114 Ammonium polyphosphate Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910018540 Si C Inorganic materials 0.000 description 1
- 235000019826 ammonium polyphosphate Nutrition 0.000 description 1
- 229920001276 ammonium polyphosphate Polymers 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000004438 eyesight Effects 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 231100000053 low toxicity Toxicity 0.000 description 1
- 230000005226 mechanical processes and functions Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000009965 odorless effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000005049 silicon tetrachloride Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L23/00—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers
- C08L23/02—Compositions of homopolymers or copolymers of unsaturated aliphatic hydrocarbons having only one carbon-to-carbon double bond; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L23/10—Homopolymers or copolymers of propene
- C08L23/12—Polypropene
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/321—Phosphates
- C08K2003/324—Alkali metal phosphate
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/32—Phosphorus-containing compounds
- C08K2003/329—Phosphorus containing acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention relates to a high-leakage-tracking high-glow-wire PP (polypropylene) material which is prepared from the following raw material components in percentage by weight: 50-64% of PP tree finger; 25-30% of phosphorus-nitrogen flame retardant; 2-5% of silicon flame retardant; 3-5% of wollastonite; 4-5% of a toughening agent; 0.3 to 0.5 percent of lubricant; wherein the phosphorus-nitrogen flame retardant is prepared by mixing phosphoric acid, melamine, sodium pyrophosphate, phosphates and sodium hexametaphosphate; the silicon flame retardant is an organic silicon flame retardant and an inorganic silicon flame retardant, and the weight ratio of the organic silicon flame retardant to the inorganic silicon flame retardant is 1: 1, mixing the raw materials; the toughening agent is obtained by compounding grafted POE and a toughening agent POE; the lubricant is a mixture of a lubricant PETS and silicone powder. The invention can greatly improve the flame retardant property of PP products, realizes the double high performance of high CTI and high glow wire, has no obvious segregation phenomenon of materials after passing water, meets the requirements of electronic and electrical appliance industries on the product safety, and is suitable for popularization and application.
Description
Technical Field
The invention relates to the technical field of new materials, in particular to a PP material.
Background
Polypropylene, PP for short, is a colorless, odorless, nontoxic and semitransparent solid substance. Polypropylene is a thermoplastic synthetic resin with excellent performance, and is colorless translucent thermoplastic light general-purpose plastic. The polypropylene has chemical resistance, heat resistance, electrical insulation, high-strength mechanical property, good high-wear-resistance processing property and the like, so that the polypropylene can be rapidly and widely developed and applied in a plurality of fields such as machinery, automobiles, electronic and electric appliances, buildings, textiles, packaging, agriculture, forestry, fishery, food industry and the like since the coming out. In recent years, with the rapid development of the industries such as packaging, electronics, automobiles and the like in China, the development of the industries in China is greatly promoted. And because of its plasticity, polypropylene materials are gradually replacing wooden products, and the mechanical functions of metals have been gradually replaced by high strength toughness and high wear resistance.
With the wide application of PP materials, the performance requirements of PP materials are increased, such as flame retardancy, sufficient tensile strength, bending strength, impact strength, etc., and therefore, auxiliary materials such as flame retardants, glass fibers, etc. are required to be added during the manufacturing process to modify PP. However, the current common flame retardant PP has a low tracking index (PTI) value, the ignition temperature of a glow wire is generally 650-750 ℃, and the material is applied to electronic and electrical products and often brings about potential safety hazards. Therefore, the applicant develops a high tracking and high glow wire PP material by using the professional eye sight and the professional knowledge thereof with the spirit of research innovation and lean and refinement, and then provides the application.
Disclosure of Invention
The invention aims to provide a high-tracking high-glow-wire PP material which meets the requirements of the electronic and electric appliance industries on product safety.
In order to achieve the purpose, the invention adopts the following technical scheme:
the PP material with high tracking and high glow wire is prepared from the following raw material components in percentage by weight: 50-64% of PP tree finger; 25-30% of phosphorus-nitrogen flame retardant; 2-5% of silicon flame retardant; 3-5% of wollastonite; 4-5% of a toughening agent; 0.3 to 0.5 percent of lubricant;
the phosphorus-nitrogen flame retardant is prepared by mixing phosphoric acid, melamine, sodium pyrophosphate, phosphates and sodium hexametaphosphate;
the silicon flame retardant is prepared by mixing an organic silicon flame retardant and an inorganic silicon flame retardant according to the proportion of 1: 1, mixing the raw materials;
the toughening agent is obtained by compounding grafted POE and a toughening agent POE; the weight ratio of the grafted POE to the toughening agent POE is 1: 2-1: 1;
the lubricant is a mixture of a lubricant PETS and silicone powder.
The scheme is further as follows: the organic silicon flame retardant is polysiloxane, and the inorganic silicon flame retardant is a silicon-containing inorganic substance.
The scheme is further as follows: the phosphorus-nitrogen flame retardant is prepared from the following raw material components in percentage by weight: 36% of phosphoric acid, 18% of melamine, 27% of sodium pyrophosphate, 5% of phosphates and 14% of sodium hexametaphosphate; the phosphoric acid is 85% phosphoric acid, and the phosphate is sodium phosphate or potassium phosphate.
The scheme is further as follows: the siliceous mineral is silica.
The invention takes PP as a carrier, and greatly improves the flame retardant property of PP products through the cooperative flame retardant of the phosphorus-nitrogen flame retardant and the silicon flame retardant; meanwhile, wollastonite and a toughening agent are added, the density, tensile strength, toughness and the like of a PP product are greatly improved, the physical properties of the obtained PP are greatly improved, the dual high performance of high CTI and high glow wire is realized, the ignition temperature (GWIT) of the material is more than 750 ℃, the tracking resistance index (PTI) is more than 400V, and the material does not have obvious segregation phenomenon after water passing, so that the requirement of the electronic and electrical industry on the product safety is met, and the PP material is suitable for popularization and application.
The specific implementation mode is as follows:
the conception, specific structure and resulting technical effects of the present invention will be further described in conjunction with the following embodiments, so that the objects, features and effects of the present invention can be fully understood.
The invention provides a high-leakage-tracking high-glow-wire PP material, which is mainly characterized in that the multi-source flame retardance of a phosphorus-nitrogen flame retardant is utilized, the silicon flame retardant is used for assisting in improving the oxidation resistance of a carbon layer, so that the flame retardance of a product is improved, and the physical properties such as the density, the tensile strength and the toughness of PP are improved through wollastonite and a toughening agent, so that the PP material with improved physical properties and meeting the requirements of the electronic and electric industry on the safety of the product is obtained. Specifically, the PP material is prepared from the following raw material components in percentage by weight: 50-64% of PP tree finger; 25-30% of phosphorus-nitrogen flame retardant; 2-5% of silicon flame retardant; 3-5% of wollastonite; 4-5% of a toughening agent; 0.3 to 0.5 percent of lubricant. When in manufacturing, all the components are mixed and then put into a double-screw extruder for molecular decomposition, recombination and granulation, the weak shear thread block combination is adopted, the screw of the double-screw extruder is low in rotation speed, the temperature of a heating zone is controlled at 170-190 ℃, and the needed PP material is manufactured and obtained under the environment. The phosphorus-nitrogen flame retardant is prepared by mixing phosphoric acid, melamine, sodium pyrophosphate, phosphates and sodium hexametaphosphate; the silicon flame retardant is prepared by mixing an organic silicon flame retardant and an inorganic silicon flame retardant according to the weight ratio of 1: 1, a mixture of combinations of the above; preferably, the organosilicon flame retardant is a polysiloxane, the inorganic silicon flame retardant is a silicon dioxide-containing inorganic substance, and the silicon-containing inorganic substance comprises silicon dioxide, silicon tetrachloride and the like. The organic silicon flame retardant can migrate to the surface of the material to form a high molecular gradient material with the surface being an organic silicon flame retardant enrichment layer. Once burned, an inorganic oxygen-and heat-insulating protective layer containing Si bonds and/or Si-C bonds, which is peculiar to polysiloxanes, is formed. This not only prevents the combustion decomposition product from escaping, but also inhibits the thermal decomposition of the high molecular material, and achieves the effects of flame retardance, low smoke, low toxicity and the like. Inorganic silicon flame retardants, such as silica with ammonium polyphosphate, form silicon pyrophosphate polymers at high temperatures, enhance the integrity of the char layer, and provide oxidation and flame resistance, thereby enhancing the flame retardancy of the material. The wollastonite not only has a filling effect, but also can be used for reinforcing materials, so that the tensile strength and the flexural strength are improved, the cost is reduced, and the PP material has better mechanical properties. The toughening agent is obtained by compounding grafted POE and a toughening agent POE; the weight ratio of the grafted POE to the toughening agent POE is 1: 2-1: 1; thereby increasing the bending strength of the PP. The lubricant is a mixture of a lubricant PETS and silicone powder, preferably the ratio of the lubricant PETS to the silicone powder is 1: 1 mode, the two are effectively combined, the extrusion granulation is facilitated, the extrusion in a screw is not slipped, the obtained PP material has stable physical property, and the material is not obviously separated after being washed by water. The PP material prepared by the scheme not only improves the flame retardant property, but also has stable physical properties, improves the strength of breakdown current and the leakage resistance, and has high cost performance.
Example 1:
the preparation method comprises the following steps of extracting the following raw material components in percentage by weight: 57% of PP tree; 30% of phosphorus-nitrogen flame retardant; 3 percent of silicon flame retardant; 5% of wollastonite; 4.7 percent of toughening agent; 0.3 percent of lubricant. All the components are mixed in a high-speed mixer for 1-2 minutes and then put into a double-screw extruder for molecular decomposition, recombination and granulation to obtain the PP material; the combination of weak shearing thread blocks is adopted, the screw rod is low in rotating speed, and the temperature of a heating zone is controlled at 190 ℃. Wherein the silicon flame retardant is an organic silicon flame retardant and an inorganic silicon flame retardant according to the weight ratio of 1: 1 combined mixture; the organic silicon flame retardant is polysiloxane, the inorganic silicon flame retardant is silicon dioxide, and the phosphorus-nitrogen flame retardant is prepared from the following raw materials in percentage by weight: 36% of phosphoric acid, 18% of melamine, 27% of sodium pyrophosphate, 5% of phosphates and 14% of sodium hexametaphosphate; the phosphoric acid is 85% phosphoric acid, and the phosphate is sodium phosphate.
Example 2:
the preparation method comprises the following steps of extracting the following raw material components in percentage by weight: 59% of PP tree; 28 percent of phosphorus-nitrogen flame retardant; 4 percent of silicon flame retardant; 4% of wollastonite; 4.5 percent of toughening agent; 0.5 percent of lubricant. All the components are mixed in a high-speed mixer for 1-2 minutes and then put into a double-screw extruder for molecular decomposition, recombination and granulation to obtain the PP material; the combination of weak shearing thread blocks is adopted, the screw is rotated at a low speed, and the temperature of a heating zone is controlled at 190 ℃. Wherein the silicon flame retardant is an organic silicon flame retardant and an inorganic silicon flame retardant according to the weight ratio of 1: 1, a mixture of combinations of the above; the organic silicon flame retardant is polysiloxane, the inorganic silicon flame retardant is silicon dioxide, and the phosphorus-nitrogen flame retardant is prepared from the following raw materials in percentage by weight: 36% of phosphoric acid, 18% of melamine, 27% of sodium pyrophosphate, 5% of phosphate and 14% of sodium hexametaphosphate; the phosphoric acid is 85% phosphoric acid and the phosphate salt is potassium phosphate.
The invention takes PP as a carrier, and greatly improves the flame retardant property of PP products through the cooperative flame retardant of the phosphorus-nitrogen flame retardant and the silicon flame retardant; meanwhile, wollastonite and a toughening agent are added, the density, tensile strength, toughness and the like of a PP product are greatly improved, the physical properties of the obtained PP are greatly improved, the dual high performance of high CTI and high glow wire is realized, the ignition temperature (GWIT) of the material is more than 750 ℃, the tracking resistance index (PTI) is more than 400V, and the material does not have obvious segregation phenomenon after water passing, so that the requirement of the electronic and electrical industry on the product safety is met, and the PP material is suitable for popularization and application.
Claims (4)
1. The PP material with high tracking and high glow wire is characterized in that: the PP material is prepared from the following raw material components in percentage by weight: 50-64% of PP tree finger; 25-30% of phosphorus-nitrogen flame retardant; 2-5% of silicon flame retardant; 3-5% of wollastonite; 4-5% of a toughening agent; 0.3 to 0.5 percent of lubricant;
the phosphorus-nitrogen flame retardant is prepared by mixing phosphoric acid, melamine, sodium pyrophosphate, phosphates and sodium hexametaphosphate;
the silicon flame retardant is prepared by mixing an organic silicon flame retardant and an inorganic silicon flame retardant according to the weight ratio of 1: 1, mixing the raw materials;
the toughening agent is obtained by compounding grafted POE and a toughening agent POE; the weight ratio of the grafted POE to the toughening agent POE is 1: 2-1: 1;
the lubricant is a mixture of a lubricant PETS and silicone powder.
2. The high tracking high glow wire PP material of claim 1, wherein: the organic silicon flame retardant is polysiloxane, and the inorganic silicon flame retardant is a silicon-containing inorganic substance.
3. The high tracking high glow wire PP material of claim 1, wherein: the phosphorus-nitrogen flame retardant is prepared from the following raw material components in percentage by weight: 36% of phosphoric acid, 18% of melamine, 27% of sodium pyrophosphate, 5% of phosphates and 14% of sodium hexametaphosphate; the phosphoric acid is 85% phosphoric acid, and the phosphate salt is sodium phosphate or potassium phosphate.
4. The high tracking high glow wire PP material of claim 2, wherein: the siliceous mineral is silica.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210596246.4A CN114933762B (en) | 2022-05-30 | 2022-05-30 | High-leakage tracking high-glow wire PP material |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210596246.4A CN114933762B (en) | 2022-05-30 | 2022-05-30 | High-leakage tracking high-glow wire PP material |
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| CN114933762A true CN114933762A (en) | 2022-08-23 |
| CN114933762B CN114933762B (en) | 2024-08-27 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105778281A (en) * | 2016-03-17 | 2016-07-20 | 上海日之升科技有限公司 | High-glow-wire low-smoke flame-retardant polypropylene composite material and preparation method thereof |
| CN107903589A (en) * | 2017-10-31 | 2018-04-13 | 杭州立心新材料有限公司 | A kind of Halogen synergistic flame-retardant PBT material with high glow-wire and preparation method thereof |
| CN108794881A (en) * | 2018-05-16 | 2018-11-13 | 东莞市百思特塑胶有限公司 | Resistance to electric leakage PP materials |
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- 2022-05-30 CN CN202210596246.4A patent/CN114933762B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105778281A (en) * | 2016-03-17 | 2016-07-20 | 上海日之升科技有限公司 | High-glow-wire low-smoke flame-retardant polypropylene composite material and preparation method thereof |
| CN107903589A (en) * | 2017-10-31 | 2018-04-13 | 杭州立心新材料有限公司 | A kind of Halogen synergistic flame-retardant PBT material with high glow-wire and preparation method thereof |
| CN108794881A (en) * | 2018-05-16 | 2018-11-13 | 东莞市百思特塑胶有限公司 | Resistance to electric leakage PP materials |
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| CN114933762B (en) | 2024-08-27 |
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