CN103467978B - A kind of carrying roller multiple elements design modified nylon 6 composites and preparation method thereof - Google Patents
A kind of carrying roller multiple elements design modified nylon 6 composites and preparation method thereof Download PDFInfo
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- CN103467978B CN103467978B CN201310433040.0A CN201310433040A CN103467978B CN 103467978 B CN103467978 B CN 103467978B CN 201310433040 A CN201310433040 A CN 201310433040A CN 103467978 B CN103467978 B CN 103467978B
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- Prior art keywords
- nylon
- carrying roller
- multiple elements
- raw material
- elements design
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Links
- 229920002292 Nylon 6 Polymers 0.000 title claims abstract description 85
- 239000002131 composite material Substances 0.000 title claims abstract description 67
- 238000013461 design Methods 0.000 title claims abstract description 38
- 238000002360 preparation method Methods 0.000 title claims description 17
- 239000003365 glass fiber Substances 0.000 claims abstract description 37
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 34
- 239000000203 mixture Substances 0.000 claims abstract description 30
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000005543 nano-size silicon particle Substances 0.000 claims abstract description 24
- 239000002270 dispersing agent Substances 0.000 claims abstract description 20
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 claims abstract description 14
- 229910000077 silane Inorganic materials 0.000 claims abstract description 14
- 238000001125 extrusion Methods 0.000 claims abstract description 11
- 239000002994 raw material Substances 0.000 claims description 55
- 238000002156 mixing Methods 0.000 claims description 24
- 230000004048 modification Effects 0.000 claims description 24
- 238000012986 modification Methods 0.000 claims description 24
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 18
- VBICKXHEKHSIBG-UHFFFAOYSA-N 1-monostearoylglycerol Chemical group CCCCCCCCCCCCCCCCCC(=O)OCC(O)CO VBICKXHEKHSIBG-UHFFFAOYSA-N 0.000 claims description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 12
- 238000001035 drying Methods 0.000 claims description 12
- 230000001965 increasing effect Effects 0.000 claims description 12
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical group [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 10
- 229910052750 molybdenum Inorganic materials 0.000 claims description 10
- 239000011733 molybdenum Substances 0.000 claims description 10
- 239000002245 particle Substances 0.000 claims description 8
- 238000005453 pelletization Methods 0.000 claims description 7
- 238000012545 processing Methods 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 6
- YQEMORVAKMFKLG-UHFFFAOYSA-N glycerine monostearate Natural products CCCCCCCCCCCCCCCCCC(=O)OC(CO)CO YQEMORVAKMFKLG-UHFFFAOYSA-N 0.000 claims description 6
- SVUQHVRAGMNPLW-UHFFFAOYSA-N glycerol monostearate Natural products CCCCCCCCCCCCCCCCC(=O)OCC(O)CO SVUQHVRAGMNPLW-UHFFFAOYSA-N 0.000 claims description 6
- 235000006408 oxalic acid Nutrition 0.000 claims description 6
- 230000004044 response Effects 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 5
- 229910052582 BN Inorganic materials 0.000 claims description 4
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 4
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims description 4
- 229950000845 politef Drugs 0.000 claims description 4
- OKOBUGCCXMIKDM-UHFFFAOYSA-N Irganox 1098 Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)NCCCCCCNC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 OKOBUGCCXMIKDM-UHFFFAOYSA-N 0.000 claims description 3
- 239000011858 nanopowder Substances 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 17
- 229920000642 polymer Polymers 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 6
- 239000004568 cement Substances 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 17
- 238000004519 manufacturing process Methods 0.000 description 13
- 239000007822 coupling agent Substances 0.000 description 10
- -1 polyethylene Polymers 0.000 description 8
- 229920005989 resin Polymers 0.000 description 8
- 239000011347 resin Substances 0.000 description 8
- 230000008901 benefit Effects 0.000 description 7
- 239000011159 matrix material Substances 0.000 description 7
- 239000004033 plastic Substances 0.000 description 7
- 229920003023 plastic Polymers 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000000945 filler Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 239000004698 Polyethylene Substances 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 230000032683 aging Effects 0.000 description 4
- 239000002585 base Substances 0.000 description 4
- 235000013339 cereals Nutrition 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- 238000005304 joining Methods 0.000 description 4
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 4
- 229920000573 polyethylene Polymers 0.000 description 4
- 230000035939 shock Effects 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000004381 surface treatment Methods 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 3
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 description 3
- 239000004743 Polypropylene Substances 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 230000000996 additive effect Effects 0.000 description 3
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Substances [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 3
- 238000000748 compression moulding Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 239000010439 graphite Substances 0.000 description 3
- 229910002804 graphite Inorganic materials 0.000 description 3
- 239000000314 lubricant Substances 0.000 description 3
- 229920001778 nylon Polymers 0.000 description 3
- 239000011160 polymer matrix composite Substances 0.000 description 3
- 229920013657 polymer matrix composite Polymers 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 239000012779 reinforcing material Substances 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 239000004699 Ultra-high molecular weight polyethylene Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000003831 antifriction material Substances 0.000 description 2
- 239000012752 auxiliary agent Substances 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 229920001577 copolymer Polymers 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 239000011152 fibreglass Substances 0.000 description 2
- 239000002783 friction material Substances 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229920006324 polyoxymethylene Polymers 0.000 description 2
- 238000006748 scratching Methods 0.000 description 2
- 230000002393 scratching effect Effects 0.000 description 2
- 238000005728 strengthening Methods 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 229920001187 thermosetting polymer Polymers 0.000 description 2
- 229920000785 ultra high molecular weight polyethylene Polymers 0.000 description 2
- 229920000305 Nylon 6,10 Polymers 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- 229910021502 aluminium hydroxide Inorganic materials 0.000 description 1
- 230000001458 anti-acid effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000000805 composite resin Substances 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 229910010272 inorganic material Inorganic materials 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000010954 inorganic particle Substances 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- TVWWSIKTCILRBF-UHFFFAOYSA-N molybdenum trisulfide Chemical compound S=[Mo](=S)=S TVWWSIKTCILRBF-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000007348 radical reaction Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 231100000241 scar Toxicity 0.000 description 1
- 229910052604 silicate mineral Inorganic materials 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 235000012222 talc Nutrition 0.000 description 1
- 229920006337 unsaturated polyester resin Polymers 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
- B29C48/875—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling for achieving a non-uniform temperature distribution, e.g. using barrels having both cooling and heating zones
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/9258—Velocity
- B29C2948/9259—Angular velocity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92704—Temperature
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92885—Screw or gear
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
- B29C2948/92895—Barrel or housing
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention belongs to field of polymer composite material, provide a kind of conventional carrying roller high-performance multiple elements design modified nylon 6 composites, this composite is mixed nylon 6, alkali-free glass fibre 10-40 part, Pulvis Talci 5-30 part by 100 parts, nano silicon 0.01～1 part, kollag 1～5 part, anti-wear agent 0.01～3 part, age resister 0.05～1 part, dispersant 0.2～1 part, silane coupler 0.01～0.5 part composition；After material system mix homogeneously, obtain high-performance composite materials through double screw extruder extrusion, pelletize.Have with its carrying roller prepared that intensity is high, wear-resistant, high temperature resistant, lightweight, noise is low, long service life, affordable, the feature such as easy to maintenance, it is possible to be widely used in the places such as the mine except colliery, harbour, grain depot, cement plant, power plant, chemical industry, saltern.
Description
Technical field
The invention belongs to field of polymer composite material, it is specifically related to a kind of employing nano-powder material, glass fibre, polymer and other additive multiple elements design modified high performance nylon 6 composite material and preparation method thereof, particularly to being applicable to manufacture a kind of conventional carrying roller low-cost environment-friendly high performance nylon 6 composite.
Background technology
Belt conveying is the major way of loose unpacked material transport, has been widely used in the material conveying of the industries such as metallurgy, mine, power plant, cement, coal, harbour, grain depot and saltern.Carrying roller is the heart component of ribbon conveyer, and the quality of its performance brings direct impact to the operation of ribbon conveyer.The carrier roller of belt conveyer produced both at home and abroad at present mainly includes the several types such as steel carrying roller, carrier roller, plastic conveyer roller, in use, it has been found that these carrying rollers exist problems.Traditional steel carrying roller, wears no resistance, and particularly after the operation of long period, its surface is easily generated burr, causes scratching, scratching conveyer belt；Because of the error in mechanical processing process and roller weld, the reason such as fixing, affect the concentric co-axial degree of carrying roller, cause duty stability inferior poor, and chemical resistance is poor, when using under high corrosive environment, cause service life more much lower than design load (being generally 2-3 month), therefore, use procedure needs frequent replacing, extensive work amount is added to the maintenance of ribbon conveyer, because of quality weight, Renewal process labor intensity is big, and actually used cost significantly improves；Additionally, there is also the shortcoming that noise is big.Although carrier roller has the advantages such as wearability, resistance to acids and bases and non-oxidizability be good, but exist quality weight, fragility big, inconvenience is installed, use procedure is easily damaged, running produces the shortcomings such as bigger reactive loss, simultaneously because of carrying roller two ends equipped with plastic seal ring, its with pottery, metal thermal coefficient of expansion on there are differences, cause that its actual life is greatly shortened, actually used cost substantially increases.Plastic conveyer roller (such as superhigh molecular weight polyethylene idler) is compared with the above two, there is the advantages such as noise is low in light weight, corrosion-resistant, shock resistance, running, but its heat resistance, weather resistance and intensity are not as pottery and metal roller, and price height causes that its popularization is restricted.In recent years, replace steel, pottery, plastics to manufacture carrying roller with polymer matrix composite and be the important topic of research in this field, be also the Main way of Future Development.Put on market for manufacturing the function admirable of carrying roller, affordable, long service life, changing novel high-performance polymer matrix composite efficiently in the urgent need to research and development in the market.
The patent No. is the patent of invention of ZL93118918.7, the once molding formed technique disclosing a kind of thermosetting resin/fibrous composite adding glass flake manufactures carrying roller, the program is conducive to large-scale industrial production, particularly to the production of various sizes of abnormity carrying roller advantageously.But the method exists clearly disadvantageous, resistance to elevated temperatures as own in material is not good, toughness is little is the common fault of thermosetting resin, it is easily caused carrying roller cracking phenomena when using under high and low temperature environment, die press technology for forming is adopted to cause production efficiency low, production process needs more mould, thus adding production cost etc..Similar deficiency is there is in the patent of invention that the patent No. is ZL98114136.6 with the patent of invention that the patent No. is ZL93118918.7, simultaneously because do not adopt enhancement measures, and its low strength, it is difficult to meet the actual operation requirements of heavy duty bulk cargo.The patent No. is the patent of invention of ZL96115855.7, disclose a kind of with polrvinyl chloride for matrix, the plastic conveyer roller compositions composite of down-hole is can be used for MBS for main modifying agent, the great advantage of this composite is that the good anti-fire resistance that make use of polrvinyl chloride itself to have prepares the compositions roller material with fire resistance, becomes owner of modifying agent MBS and increases impact strength and the toughness of material by adding simultaneously.But this material system exists obvious defect, as not enough in the resistance to elevated temperatures due to base material polrvinyl chloride self, cause that composite is used as to manufacture its resistant to elevated temperatures performance during carrying roller not good；It addition, the tensile strength of this composite system is on the low side, cause that load capacity during transport bulk cargo is difficult to meet instructions for use.The patent of invention that the patent No. is ZL03143221.2 discloses with ultra-high molecular weight polyethylene for base material, and nano-calcium carbonate is modifying agent with coupling agent and other auxiliary addition agent, adopts the method that composite material support roller is prepared in extrusion molding.This invention utilizes ultra-high molecular weight polyethylene to have the performances such as shock-resistant, wear-resistant, the self lubricity of the unrivaled excellence of other plastics, resistance to chemical attack because molecular weight is high, because its selling at exorbitant prices is difficult to promote.The patent of invention that the patent No. is ZL200510046618.2 discloses with glass-cermic powder (having another name called diabase flour) for major ingredient, the method that carrying roller prepared by polypropylene or polyethylene or nylon or polyformaldehyde and the composite that antistatic additive is modifying agent.Its purpose is the advantage utilizing glass-cermic powder to have excellent acid-proof alkaline, the polymer such as polypropylene or polyethylene is adopted to serve as similar binding agent effect, it is easy to the compression molding after plasticizing, this invention still belongs to the category of similar carrier roller in essence, being modifying agent because adopting polypropylene or polyethylene, the resistance to elevated temperatures causing prepared carrying roller is not good.Simultaneously from disclosed molding technological condition, during as adopted polyformaldehyde or nylon, can the purpose that reach to modifiy need further discussion.Publication number is the patent of invention of CN1810879A, adopting unsaturated polyester resin, steel fibre, glass fibre, nylon fiber, graphite, calcium carbonate, aluminium hydroxide and quartz sand is raw material, the scheme of composite material support roller is prepared through compression molding, but there is resistance to elevated temperatures difference in material system itself, during solidification, cubical contraction causes more greatly size to be difficult to ensure, simultaneously because adopting compression molding to cause the notable drawback that production efficiency is not high.Publication number is the patent of invention of CN101423665A, disclose the method preparing polymer matrix composite carrying roller for raw material with polycaprolactam, glass fibre, ceramic powder, lubricant, fire retardant, antistatic additive, age resister, surface modifier, the great advantage of the program is the intensity both having considered carrying roller, it is also contemplated that the toughness of carrying roller.But the specific aim of the program is inconspicuous, because when carrying roller is used under different environmental conditions (such as southern area, northern area), the requirement of performance is different by it.Additionally, when being embodied as by this formula, on the high side, promote existing defects.
Although above technology can solve certain problem, as made carrying roller bring improvement in shock resistance, wear-resistant, corrosion-resistant, anti tear etc., but these technology remain without and its environment used are designed targetedly；Additionally, there are or performance is good, but on the high side or moderate, but performance is difficult to meet the problems such as instructions for use.
Summary of the invention
It is an object of the invention to the deficiency for overcoming prior art to exist, it is desirable to provide a kind of conventional carrying roller multiple elements design modified nylon 6 composites and preparation method thereof.The advantage that this multiple elements design modified nylon 6 composites combines polymer, inorganic material and fiber etc.; there is the advantages such as higher intensity, excellent wearability, heat-resisting quantity, ageing resistance, good dimensional stability, have energy-saving and cost-reducing, to reduce carrying roller manufacturing cost and large-scale production needs simultaneously concurrently.
For achieving the above object, the technical scheme is that
A kind of conventional carrying roller multiple elements design modified nylon 6 composites, raw material components and weight be:
Mixing NYLON610 0 part
Alkali-free glass fibre 10 parts-40 parts
Pulvis Talci 5 parts-30 parts
Nano silicon 0.01 part～1 part
Kollag 1 part～5 parts
Anti-wear agent 0.01 part～3 parts
Age resister 0.05 part～1 part
Dispersant 0.2 part～1 part
Silane coupler 0.01 part～0.5 part；
Described mixing nylon 6 is made up of nylon 6 and low viscous nylon 6 mixing of medium viscosity, and the mass ratio of composition is: the nylon 6 of medium viscosity: low viscous nylon 6=(50～100): (10～50).
Described talcous particle diameter is 100 order～2000 orders, and thickness is arranged in pairs or groups, and the mass ratio of its blend proportion is preferably: 1500 order～2000 order 100 order～1000 orders=(0.1～1) 1.
Described nano silicon is preferably particle diameter≤100nm.
Described kollag is preferably one or more in aquadag powder, politef, boron nitride, fluorographite, and granular size is 100 order～10000 orders.
Described anti-wear agent is preferably molybdenum bisuphide, and granular size is 325 order～2500 orders.
Described dispersant is preferably glycerol monostearate or nano powder dispersant NK1.
Described age resister is preferably one or more in antioxidant 1098, irgasfos 168.
Described silane coupler is preferably one or more in KH-550, KH-560 and KH-570.
The method preparing above-mentioned conventional carrying roller multiple elements design modified nylon 6 composites, comprises the following steps:
(1) pretreatment of raw material:
1. dried: mixing nylon 6, alkali-free glass fibre, Pulvis Talci, kollag, anti-wear agent, nano silicon are separately dried 1～24 hour；
2. surface modification treatment:
A, silane coupler is joined in ethanol, be configured to solution that weight concentration is 4% 6% (silane coupler weight concentration in the solution be 4% 6%), add oxalic acid and regulate solution ph to 3.5～4.5, obtain modification liquid；
B, take pending raw material respectively, according to the ratio that mass ratio is 0.2～1 100, modification liquid is joined in pending raw material according to modification liquid and pending raw material, it is subsequently adding the dispersant of pending raw materials quality 0.2%～1%, carrying out mixing at 50 DEG C～70 DEG C and react, the response time is 1～4 hour；Temperature being finally increased to 80 DEG C～100 DEG C, carries out drying and processing, drying time is 0.5～3 hour, obtains modified pending raw material；Described pending raw material is Pulvis Talci, anti-wear agent and nano silicon；
(2) preparation of multiple elements design modified nylon 6 composites
Except alkali-free glass fibre, accurately weigh the raw material, age resister and the surplus dispersant that processed through above-mentioned steps (1) to be placed in high-speed mixer mix by formula, stirring 1～10min, then adopt double screw extruder that mixture is extruded, alkali-free glass fibre is joined from the aperture of extruder the 4th section extrusion after in mixture melt simultaneously, water cooled, pelletizing, is prepared into multiple elements design modified nylon 6 composites.
Extruder condition setting is preferably: the temperature of first paragraph～ten section respectively 190 DEG C-210 DEG C, 200 DEG C-220 DEG C, 220 DEG C-240 DEG C, 245 DEG C-265 DEG C, 250 DEG C-270 DEG C, 250 DEG C-270 DEG C, 250 DEG C-270 DEG C, 250 DEG C-270 DEG C, 250 DEG C-270 DEG C, 260 DEG C, head temperature is 255 DEG C, engine speed is 330rpm, and feeding rotating speed is 30rpm.
The present invention will be further explained below:
" alkali-free glass fibre " of the present invention refers to the glass fibre after surface treatment.Can be obtained by the surface treatment method of the present invention, it is also possible to by being directly commercially available.
" conventional carrying roller " of the present invention refers to for the carrying roller that the mine except colliery, harbour, grain depot, cement plant, power plant, chemical industry, salt place use.
Nylon 6 raw material of the present invention is mass-produced commodity in the market, it is possible to be directly commercially available.The relative viscosity of described medium viscosity nylon 6 is 2.8～3.4, and the relative viscosity of described low viscosity nylon 6 is 2.2～2.7.Nylon 6 has superior combination property, including mechanical strength, rigidity, toughness, mechanical shock absorption and wearability, has the characteristic such as self-extinguishment, good weatherability, and especially the anti-wear performance of its brilliance is significantly better than other resin matrix.Select nylon 6 as the matrix of composite resin, embody good cost performance.
But when it is used as the material of conventional carrying roller, intensity, wearability etc. can't fully meet the instructions for use of carrying roller.At present, the method improving polymer strength conventional is that it is carried out enhancing modified, generally adopts inorfil to carry out.The present embodiment adopts alkali-free glass fibre as reinforcing material.Owing to glass fibre is different from the polarity of nylon-6 matrix body, Presence of an interface bonds not good problem, therefore, it is necessary to it is carried out surface treatment, namely at fiber surface coating surface inorganic agent, surface conditioning agent includes wetting agent and a series of coupling agent and auxiliary agent.Coupling agent can form an excellent bonds interface between fiber and matrix resin, thus being effectively improved both adhesion strengths, also improves the waterproof of composite, insulation and the performance such as wear-resisting.Existing surface treated alkali-free glass fibre product, therefore, as long as the performance of this product, surface treatment method are carefully contrasted, just can buy the glass fibre meeting instructions for use in the market, thus reducing the cost producing carrying roller.Alkali-free glass fibre used by the present invention can be bought from units such as Shenyang Glass with star light fiber company limited, Tai'an composite company limiteies in length and breadth.
Can wearability be another key technical index of the present embodiment, is a composite key factor affecting length in service life when being used as carrying roller, the key factor promoted in real process especially.According to carrying roller kinematic feature in use, its friction has slips concurrently, rolls and three kinds of forms of rotation, according to its friction surface state, principally falls into mixed film friction type.At present, the conveyer belt that ribbon conveyer uses belongs to elastomer-modified composite, relies primarily on import, and expensive.Being not difficult to find out, the abrasion between carrying roller and conveyer belt is based on fatigue wear, and abrasive wear is auxiliary wear type.Therefore, the present embodiment adopts based on antifriction and lubrication, and increasing rubs is auxiliary general plan.Talcous main component is silicate mineral, owing to the crystal structure of Talcum is in stratiform, easily splits into tending to and special slip of scale so having, and has good alkali lubricious, heat-resisting, antiacid, thermal insulation and to features such as the good adsorptivities of oils.The Pulvis Talci of chemical grade as strengthening upgrading filler, can increase product size stability for chemical industries such as rubber, plastics, paint, increases yield strength, tensile strength, comprcssive strength, bending strength, reduces deformability.Owing to Pulvis Talci contains substantial amounts of element silicon, it has the ultrared effect of obstruct, has the performance of the sun-proof of reinforced composite and infrared resistant, and source is very abundant, and price is extremely cheap.At present, its common granular size is from 100 order～2000 order scopes.Pulvis Talci in the present invention in use adopts the mode that thickness is arranged in pairs or groups, the mass ratio of its blend proportion is preferably: 1500 order-2000 order 100 order-1000 orders=(0.1～1) 1, make carrying roller have good wear-resisting stability in running, improve its service life.In antifriction filler systems, graphite is the current industrial good antifriction material of wide variety of another kind, is also a kind of industrial conventional kollag simultaneously.Graphite also has good conduction, heat conduction and resistance to elevated temperatures.Other kollag (such as politef, boron nitride, fluorographite) also functions to similar effect.Roller material system is added lubricant and can play reduction coefficient of friction, improve friction stability and wearability, reduce the purpose of noise.
For the carrying roller of some specific use in the present invention, it is desirable to when it has higher coefficient of friction, it is possible to suitably increase some in system and increase the material that rubs (namely increasing the agent that rubs) and solve.The agent that rubs of increasing herein is different from the increasing used in conventional friction material and rubs agent because specifically to as if roller material system used by tape conveyor belt, it is desirable to condition premised on the conveyer belt that not scratch, scratch use.Therefore, this programme system is selected molybdenum bisuphide rub agent as increasing.It practice, molybdenum bisuphide is important conventional solid lubricant, it is used as anti-friction agent under normal circumstances.Owing to molybdenum bisuphide is non-conductive, there is the copolymer of molybdenum bisuphide, molybdenum trisulfide and molybdenum trioxide, when because of friction, temperature sharply raises friction material, the molybdenum trioxide particles in copolymer expands along with intensification, thus serving the increasing effect of rubbing.
Meanwhile, in order to improve the weatherability as carrying roller composite, the present invention program adds nano silicon in this formula system.On the one hand, nano silicon has extremely strong uv absorption, infrared external reflection characteristic, on the other hand, big with its specific surface area, superficial attractive forces is strong, and surface can be big, and the Strange properties such as high-strength, high-ductility, good stability of at high temperature still having, realize not only strengthening but also toughness reinforcing purpose in modified system.It addition, for the ageing resistace improving composite further, formula system adds age resister.In order to improve inorganic particle filler and the compatibility of nylon-6 matrix body, wellability, dispersibility, improve composite overall performance, strive that the performance making each component in formula system is to ultimate attainment, adopt coupling agent that Pulvis Talci, kollag, anti-wear agent, nano silicon etc. are carried out pretreatment.At present, the coupling agent on market mainly has two types, and a class is silane coupler, and another kind of is titanate coupling agent.Concrete feature according to this material prescription system, selects silane coupler series.Coupling agent effect in the composite is in that it can with some radical reaction on reinforcing material surface, can react with nylon 6 resin again, a boundary layer is formed between reinforcing material and resin matrix, boundary layer can transmit stress, thus enhancing bonding strength between filler and nylon 6 resin, improve the performance of composite, being also prevented from other medium to contacting permeation simultaneously, improve interface state, be conducive to ageing-resistant, proof stress and the electrical insulation capability of goods.
On the basis of above-mentioned work, in order to make each component in composite-material formula system be uniformly dispersed as far as possible in twin screw extrusion, and then the composite that realization is prepared by after pelletize reaches optimum performance, before extruding pelletization, except glass fibre, by the proportioning of composite, when adding dispersant, above-mentioned each component is joined in high-speed mixer and mixes, make dry blend fully dispersed as far as possible and formed dispersed.The effect of dispersant is to have reduced time required for dispersive process and energy, and modified particle surface nature adjusts the mobility of particle, makes formula materials reach homodisperse purpose.
The positive effect of the present invention:
1, the multiple elements design modified nylon 6 composites of the present invention has higher intensity, excellent wearability, heat-resisting quantity, ageing resistance, stability etc., and cost is low simultaneously, and preparation process energy consumption is low.
2, the multiple elements design modified nylon 6 composites adopting the present invention manufactures roller for belt conveyer, there is the features such as intensity height, wearability is good, lightweight, corrosion-resistant, noise is low, need not increase new production equipment, do not change existing production technology, production efficiency is high, stable and reliable product quality (almost without waste product), cost is low, has excellent cost performance；Produced carrying roller product appearance is bright and clean.These excellent qualities, extend the service life of carrying roller significantly, and maintenance operation is convenient simultaneously, does not damage belt conveyor belt, and performance indications meet or exceed GB/T10595-2009 standard.
Accompanying drawing explanation
Fig. 1 is process chart prepared by a kind of conventional carrying roller multiple elements design modified nylon 6 composites；Wherein, base stock is mixing nylon 6, and filler is Pulvis Talci, kollag, nano silicon, anti-wear agent, and auxiliary agent is age resister, dispersant；
Fig. 2 is the SEM photograph adopting multiple elements design modified nylon 6 composites impact specimen fracture；
Fig. 3 adopts multiple elements design modified nylon 6 composites impact specimen incision position fiberglass surfacing SEM photograph.
As seen from Figure 2, impact specimen fracture surface presents obvious ductile rupture pattern, the glass fibre (bar-like portion and hollow sectors) in figure dispersion ratio in composite system is more uniform, and the fiberglass surfacing being retained in composite system has obvious one layer of covering (Fig. 3), these are it turns out that glass fibre in matrices of composite material median surface bonding better, disperses ratio more uniform.
Detailed description of the invention
Below in conjunction with embodiment, the present invention will be further explained, but protection scope of the present invention is not limited to this.
Embodiment 1:
Carrying roller multiple elements design modified nylon 6 composites for harbour, grain depot and saltern:
Raw materials quality part composition is: mixing nylon 6: alkali-free glass fibre: Pulvis Talci: nano silicon: kollag (graphite powder): anti-wear agent (molybdenum bisuphide): age resister (antioxidant 1098): glycerol monostearate: silane resin acceptor kh-550=100: 15: 18: 0.3: 1: 0.05: 0.1: 0.2: 0.1, and what wherein mix nylon 6 consists of medium viscosity nylon 6 (relative viscosity 2.8～3.4): low viscosity nylon 6 (relative viscosity 2.2～2.7)=90: 10 (mass ratio)；The blend proportion of Pulvis Talci particle diameter is 1000 orders: 1800 orders=1:1.
Preparation method:
(1) pretreatment of raw material:
Dried: mixing nylon 6, alkali-free glass fibre, Pulvis Talci, kollag, anti-wear agent, nano silicon are separately dried 12 hours；
Surface modification treatment:
A, joining in ethanol by silane coupler, the weight concentration being configured to is the solution of 4%, adds oxalic acid and regulates solution ph to 3.5, obtains modification liquid；
B, take pending raw material respectively, according to the ratio that mass ratio is 0.5 100, modification liquid is joined in pending raw material according to modification liquid and pending raw material, being subsequently adding the dispersant of pending raw materials quality 0.2%, carry out mixing and react at 55 DEG C, the response time is 1.5 hours；Finally temperature being increased to 80 DEG C, carry out drying and processing, drying time is 1 hour, obtains modified pending raw material；Described pending raw material is in Pulvis Talci, anti-wear agent and nano silicon.
(2) preparation of multiple elements design modified nylon 6 composites
Except alkali-free glass fibre, the raw material, age resister and the surplus dispersant that processed through above-mentioned steps (1) is accurately weighed by formula, stirring 7～9min, then adopt double screw extruder (CTE-35) that mixture is extruded, alkali-free glass fibre is joined from the aperture of double screw extruder the 4th section extrusion after in mixture melt simultaneously, water cooled, pelletizing, is prepared into multiple elements design modified nylon 6 composites.
Extruder condition setting: the temperature of first paragraph～ten section respectively 190 DEG C-210 DEG C, 200 DEG C-220 DEG C, 220 DEG C-240 DEG C, 245 DEG C-265 DEG C, 250 DEG C-270 DEG C, 250 DEG C-270 DEG C, 250 DEG C-270 DEG C, 250 DEG C-270 DEG C, 250 DEG C-270 DEG C, 260 DEG C, head temperature is 255 DEG C, engine speed is 330rpm, and feeding rotating speed is 30rpm.
Product main performance detection data are as follows:
Hot strength (MPa): 115
Notch impact strength (MPa): 11
Wearing-in period (min): 25
(note, frictional wear experiment condition: pressure 500N, 400 turns/min of rotating speed, runner diameter 40mm, batten length respectively 30mm, 6mm, 7mm, calculate fraction time when wear scar width is 20mm, lower same.)
Embodiment 2:
Carrying roller multiple elements design modified nylon 6 composites for harbour, grain depot and saltern:
Raw materials quality part composition is: mixing nylon 6: alkali-free glass fibre: Pulvis Talci: nano silicon: kollag (fluorographite): anti-wear agent (molybdenum bisuphide): age resister (antioxidant 168): glycerol monostearate: coupling agent KH-560=100: 20: 20: 0.3: 1: 0.1: 0.1: 0.3: 0.12, and what wherein mix nylon 6 consists of medium viscosity nylon 6 (relative viscosity 2.8～3.4): low viscosity nylon 6 (relative viscosity 2.2～2.7)=85: 15 (mass ratio)；Pulvis Talci is made up of 1000 orders and 1500 orders, and its mass ratio is 1: 1.
Preparation method:
(1) pretreatment of raw material
Dried: mixing nylon 6, alkali-free glass fibre, Pulvis Talci, kollag, anti-wear agent, nano silicon are separately dried 12 hours；
Surface modification treatment:
A, joining in ethanol by silane coupler, the weight concentration being configured to is the solution of 4%, adds oxalic acid and regulates solution ph to 4.0, obtains modification liquid；
B, take pending raw material respectively, according to the ratio that mass ratio is 0.5 100, modification liquid is joined in pending raw material according to modification liquid and pending raw material, being subsequently adding the dispersant of pending raw materials quality 0.3%, carry out mixing and react at 60 DEG C, the response time is 2 hours；Finally temperature being increased to 85 DEG C, carry out drying and processing, drying time is 1.5 hours, obtains modified pending raw material；Described pending raw material is the one in Pulvis Talci, anti-wear agent and nano silicon.
(2) preparation of multiple elements design modified nylon 6 composites
Except alkali-free glass fibre, the raw material, age resister and the surplus dispersant that processed through above-mentioned steps (1) is accurately weighed by formula, stirring 7～9min, then adopt double screw extruder that mixture is extruded, alkali-free glass fibre is joined from the aperture of extruder the 4th section extrusion after in mixture melt simultaneously, water cooled, pelletizing, is prepared into multiple elements design modified nylon 6 composites.Extrusion condition is with embodiment 1.
Product main performance detection data are as follows:
Hot strength (MPa): 120
Notch impact strength (MPa): 12
Wearing-in period (min): 30
Embodiment 3:
Carrying roller multiple elements design modified nylon 6 composites for the mine except colliery, cement plant and power plant, its mass parts composition is: mixing nylon 6: alkali-free glass fibre: Pulvis Talci: nano silicon: kollag (boron nitride): anti-wear agent (molybdenum bisuphide): age resister (antioxidant 168): glycerol monostearate: coupling agent kh-570=100: 25: 20: 0.3: 1.2: 0.5: 0.3: 0.6: 0.4, wherein mixing nylon 6 is medium viscosity nylon 6: low viscosity nylon 6=80: 40；Pulvis Talci is made up of 800 orders and 1500 orders, and mass ratio is 1: 1.
Preparation method:
(1) pretreatment of raw material
Dried: mixing nylon 6, alkali-free glass fibre, Pulvis Talci, kollag, anti-wear agent, nano silicon are separately dried 12 hours；
Surface modification treatment:
A, joining in ethanol by silane coupler, the weight concentration being configured to is the solution of 4%, adds oxalic acid and regulates solution ph to 4.5, obtains modification liquid；
B, take pending raw material respectively, according to the ratio that mass ratio is 0.5 100, modification liquid is joined in pending raw material according to modification liquid and pending raw material, being subsequently adding the dispersant of pending raw materials quality 0.8%, carry out mixing and react at 60 DEG C, the response time is 2 hours；Finally temperature being increased to 85 DEG C, carry out drying and processing, drying time is 1.5 hours, obtains modified pending raw material；Described pending raw material is the one in Pulvis Talci, anti-wear agent and nano silicon.
(2) preparation of multiple elements design modified nylon 6 composites
Except alkali-free glass fibre, the raw material, age resister and the surplus dispersant that processed through above-mentioned steps (1) is accurately weighed by formula, stirring 7～9min, then adopt double screw extruder that mixture is extruded, alkali-free glass fibre is joined from the aperture of extruder the 4th section extrusion after in mixture melt simultaneously, water cooled, pelletizing, is prepared into multiple elements design modified nylon 6 composites.Extrusion condition is with embodiment 1.
Product main performance detection data are as follows:
Hot strength (MPa): 135
Notch impact strength (MPa): 15
Wearing-in period (min): 32
Embodiment 4:
Carrying roller multiple elements design modified nylon 6 composites for the mine except colliery, cement plant and power plant, its mass parts composition is: mixing nylon 6: alkali-free glass fibre: Pulvis Talci: nano silicon: kollag (politef): anti-wear agent (molybdenum bisuphide): age resister (antioxidant 168): glycerol monostearate: coupling agent KH-560=100: 30: 20: 0.2: 2.5: 0.7: 0.4: 0.7: 0.5, wherein mixing nylon 6 is medium viscosity nylon 6: low viscosity nylon 6=80: 40；Pulvis Talci is made up of 800 orders and 1500 orders, and mass ratio is 1: 1.
Preparation method:
(1) pretreatment of raw material
Dried: mixing nylon 6, alkali-free glass fibre, Pulvis Talci, kollag, anti-wear agent, nano silicon are separately dried 15 hours；
Surface modification treatment:
A, joining in ethanol by silane coupler, the weight concentration being configured to is the solution of 5%, adds oxalic acid and regulates solution ph to 4.0, obtains modification liquid；
B, take pending raw material respectively, according to the ratio that mass ratio is 0.5 100, modification liquid is joined in pending raw material according to modification liquid and pending raw material, being subsequently adding the dispersant of pending raw materials quality 0.8%, carry out mixing and react at 60 DEG C, the response time is 2 hours；Finally temperature being increased to 80 DEG C, carry out drying and processing, drying time is 2 hours, obtains modified pending raw material；Described pending raw material is the one in Pulvis Talci, anti-wear agent and nano silicon.
(2) preparation of multiple elements design modified nylon 6 composites
Except alkali-free glass fibre, the raw material, age resister and the surplus dispersant that processed through above-mentioned steps (1) is accurately weighed by formula, stirring 7～9min, then adopt double screw extruder that mixture is extruded, alkali-free glass fibre is joined from the aperture of extruder the 4th section extrusion after in mixture melt simultaneously, water cooled, pelletizing, is prepared into multiple elements design modified nylon 6 composites.Expressing technique condition is with embodiment 1.
Product main performance detection data are as follows:
Hot strength (MPa): 115
Notch impact strength (MPa): 12
Wearing-in period (min): 35
The main performance index of above-mentioned 4 examples all can meet the requirement about standard.
Claims (9)
1. a conventional carrying roller multiple elements design modified nylon 6 composites, is characterized in that, raw material components and weight be:
Described mixing nylon 6 is made up of nylon 6 and low viscous nylon 6 mixing of medium viscosity, the relative viscosity of described medium viscosity nylon 6 is 2.8～3.4, the relative viscosity of described low viscosity nylon 6 is 2.2～2.7, and the mass ratio of composition is: the nylon 6 of medium viscosity: low viscous nylon 6=(50～100): (10～50)；
Described talcous particle diameter is 100 order～2000 orders, and thickness is arranged in pairs or groups, and the mass ratio of its blend proportion is 1500 order～2000 orders: 100 order～1000 orders=(0.1～1): 1.
2. conventional carrying roller multiple elements design modified nylon 6 composites according to claim 1, is characterized in that, described nano silicon is particle diameter≤100nm.
3. conventional carrying roller multiple elements design modified nylon 6 composites according to claim 1, is characterized in that, described kollag is one or more in aquadag powder, politef, boron nitride, fluorographite, and granular size is 100 order～10000 orders.
4. conventional carrying roller multiple elements design modified nylon 6 composites according to claim 1, is characterized in that, described anti-wear agent is molybdenum bisuphide, and granular size is 325 order～2500 orders.
5. conventional carrying roller multiple elements design modified nylon 6 composites according to claim 1, is characterized in that, described dispersant is glycerol monostearate or nano powder dispersant NK1.
6. conventional carrying roller multiple elements design modified nylon 6 composites according to claim 1, is characterized in that, described age resister is one or more in antioxidant 1098 or irgasfos 168.
7. conventional carrying roller multiple elements design modified nylon 6 composites according to claim 1, is characterized in that, described silane coupler is one or more of KH-550, KH-560 or KH-570.
8. the conventional carrying roller preparation method of multiple elements design modified nylon 6 composites described in any one of claim 1 to 7, is characterized in that, comprise the following steps:
(1) pretreatment of raw material:
1. dried: mixing nylon 6, alkali-free glass fibre, Pulvis Talci, kollag, anti-wear agent, nano silicon are separately dried 1～24 hour；
2. surface modification treatment:
A, silane coupler is joined in ethanol, be configured to the solution that weight concentration is 4%-6%, add oxalic acid and regulate solution ph to 3.5～4.5, obtain modification liquid；
B, take pending raw material respectively, according to the ratio that mass ratio is 0.2～1:100, modification liquid is joined in pending raw material according to modification liquid and pending raw material, it is subsequently adding the dispersant of pending raw materials quality 0.2%～1%, carrying out mixing at 50 DEG C～70 DEG C and react, the response time is 1～4 hour；Temperature being finally increased to 80 DEG C～100 DEG C, carries out drying and processing, drying time is 0.5～3 hour, obtains modified pending raw material；Described pending raw material is Pulvis Talci, anti-wear agent and nano silicon；
(2) preparation of multiple elements design modified nylon 6 composites:
Except alkali-free glass fibre, accurately weigh the raw material that processed through above-mentioned steps (1) by formula, age resister is placed in high-speed mixer and mixes, stirring 1～10min, then adopt double screw extruder that mixture is extruded, alkali-free glass fibre is joined from the aperture of extruder the 4th section extrusion after in mixture melt simultaneously, water cooled, pelletizing, is prepared into poly modified nylon 6 composite material.
9. the conventional carrying roller preparation method of multiple elements design modified nylon 6 composites according to claim 8, it is characterized in that, extruder condition setting: the temperature of first paragraph～ten section respectively 190 DEG C～210 DEG C, 200 DEG C～220 DEG C, 220 DEG C～240 DEG C, 245 DEG C～265 DEG C, 250 DEG C～270 DEG C, 250 DEG C～270 DEG C, 250 DEG C～270 DEG C, 250 DEG C～270 DEG C, 250 DEG C～270 DEG C, 260 DEG C, head temperature is 255 DEG C, engine speed is 330rpm, and feeding rotating speed is 30rpm.
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| CN114479345B (en) * | 2022-01-18 | 2023-02-10 | 中国科学院兰州化学物理研究所 | Sealing material for fireproof plate hot press and preparation method thereof |
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