CN108456419A - A kind of low viscosity exempts from spray metal silver color daiamid composition and preparation method thereof - Google Patents

A kind of low viscosity exempts from spray metal silver color daiamid composition and preparation method thereof Download PDF

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Publication number
CN108456419A
CN108456419A CN201810443419.2A CN201810443419A CN108456419A CN 108456419 A CN108456419 A CN 108456419A CN 201810443419 A CN201810443419 A CN 201810443419A CN 108456419 A CN108456419 A CN 108456419A
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parts
exempts
low viscosity
daiamid composition
metal silver
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王正有
徐青华
但伟军
夏梦阁
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Nanjing Jumbo New Mstar Technology Ltd
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Nanjing Jumbo New Mstar Technology Ltd
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
    • C08L77/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
    • 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
    • C08K3/02—Elements
    • C08K3/08—Metals
    • C08K2003/0806—Silver
    • 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
    • C08K2201/00—Specific properties of additives
    • C08K2201/011—Nanostructured additives
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2201/00—Properties
    • C08L2201/08—Stabilised against heat, light or radiation or oxydation
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L2205/00—Polymer mixtures characterised by other features
    • C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
    • C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend

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  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
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  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

This application discloses a kind of low viscosities to exempt from spray metal silver color daiamid composition and preparation method thereof, raw material is PA6 resins, silver powder, coupling agent, low viscous polymer substance, lubricant, antioxidant, ultra-violet absorber, montmorillonite, fire retardant, MDI, nano-aluminium oxide, molybdenum disulfide, nano silicon dioxide, polytetrafluoroethylene (PTFE), glass microballoon, polyethylene glycol oxide, glass fibre, chain extender and polyarylate, with low viscosity characteristics, solves the problems, such as product gas line, 80 88MPa of tensile strength, 74 171Pas of viscosity under the conditions of 265 DEG C, barrier property is high, absorb water small 0.1 1%；With spray characteristics, replacing electroplating or vacuum metallization pattern is exempted from, residualinternal stress is small, 2.1 2.5W/ of thermal conductivity（m·K）, shrinking percentage 0.2 0.23%, oxygen index (OI) 24.5 28%, 60 80 kJ/m of impact strength2。

Description

A kind of low viscosity exempts from spray metal silver color daiamid composition and preparation method thereof
Technical field
This application involves polymeric material fields more particularly to a kind of low viscosity to exempt from spray metal silver color daiamid composition And preparation method thereof.
Background technology
Polyamide is also nylon, is to have multiple macromolecule engineering plastics for repeating polyamide group, Buddhist nun on molecular backbone Dragon has excellent mechanical performances, heat resistance, wearability, chemical resistance, easy to process, is to prepare inner and outer decorative parts of automobile ideal material Material.Majority inner and outer decorative parts of automobile is mostly by PC/ polyarylate alloys plating metal or vacuum metallization at present, and the present invention exempts from spraying gold Belong to silver color daiamid composition, metallic silver color is presented in injection-moulded plastic part surface, does not have to vacuum metallization or plating metal, environmental protection and section About cost.The materials such as part metals color polypropylene at present, injection-molded item is at nearly cast gate, the remote cast gate tail end venting of product is unsmooth easily There is the defects of gas line.
Chinese patent 201611242257.3 discloses a kind of PA6 high-performance composite materials and preparation method thereof, uses PA6, silane coupling agent, long carbon fiber, extra-fine nickel powder metal powder, flow ability modifying agent agent and antioxidant prepare PA6 composite materials, It is contemplated that not environmentally friendly enough, with high costs, tail end venting is unsmooth and the technical problems such as gas line easily occurs, the prior art seems summary There is deficiency.
Chinese patent 201110004896.7 discloses a kind of plastic material for having and aggravating texture, using PA6, metal Powder, chain extender, lubricant, dispersant and coupling agent, in the molding of complex model articles for use, manufactured difference articles for use or utensil meet The different use demand of consumer, it is contemplated that it is not environmentally friendly enough, with high costs, tail end venting is unsmooth and easily gas line etc. occur Technical problem, the prior art just seem slightly insufficient.
Chinese patent 201711029354.9 discloses a kind of composite resin material and preparation method thereof, using PA6 resins, It is made by extruding pelletization after antioxidant, alkali-free glass fibre, lubricant, heat stabilizer, glass microballoon, the mixing of magnesium class coupling agent Composite resin material, it is contemplated that it is not environmentally friendly enough, with high costs, tail end venting is unsmooth and easily the technical problems such as gas line occurs, The prior art just seems slightly insufficient.
Chinese patent 201510408731.4 discloses a kind of UV resistant nylon plastic material, by PA6, modified glass fibre Dimension, nano-titanium dioxide, titanate coupling agent, polyethylene wax, zinc stearate, dispersant, toughener, lubricant, antioxidant, Light stabilizer, ultra-violet absorber, metallic compound and the obtained mechanical property of maleic anhydride grafting are good, and UV resistant performance is excellent It is different, plastics with long service life, it is contemplated that it is not environmentally friendly enough, with high costs, tail end venting is unsmooth and easily the skills such as gas line occurs Art problem, the prior art just seem slightly insufficient.
Apply for content
The technical issues of solution：
The application technical issues that need to address be in the prior art not environmentally friendly, with high costs enough, tail end venting it is unsmooth and Easily there are the technical problems such as gas line, propose that a kind of low viscosity exempts from spray metal silver color daiamid composition and preparation method thereof, glues Spend it is low, while add polycaprolactone and other components generate synergistic effect so that, injection moulding process smooth in exhaust.
Technical solution：
A kind of low viscosity exempts from spray metal silver color daiamid composition, and the low viscosity exempts from spray metal silver color polyamide group The raw material of conjunction object is matched by mass fraction is：80-90 parts of PA6 resins, 10-20 parts of silver powder, 0.3 part of coupling agent, low viscous height 1-10 parts of molecular substance, 0.3 part of lubricant, 0.2 part of antioxidant, 0.3 part of ultra-violet absorber, 1-4 parts of montmorillonite, fire retardant 8- 16 parts, MDI20-40 parts, 3-5 parts of nano-aluminium oxide, 5 parts of molybdenum disulfide, 0.1-1 parts of nano silicon dioxide, polytetrafluoroethyl-ne 5-15 parts of alkene, 10-30 parts of glass microballoon, 10-14 parts of polyethylene glycol oxide, 3-7 parts of glass fibre, 10-16 parts of chain extender and poly- virtue 1-5 parts of ester.
A kind of optimal technical scheme as the application：The coupling agent is even using KH-550 silane coupling agents or titanate esters Join agent.
A kind of optimal technical scheme as the application：The low viscous polymer substance uses polycaprolactone.
As a kind of optimal technical scheme of the application, the lubricant uses.
A kind of optimal technical scheme as the application：The antioxidant uses irgasfos 168 or antioxidant 1010.
A kind of optimal technical scheme as the application：The ultra-violet absorber uses UV-327 or UV-P.
A kind of optimal technical scheme as the application：The chain extender uses terephthalyl alcohol.
A kind of optimal technical scheme as the application：The fire retardant uses magnesia, antimony oxide or hydroxide Magnesium.
A kind of optimal technical scheme as the application：The low viscosity exempts from the system of spray metal silver color daiamid composition Preparation Method is：
The first step：Weigh PA6 resins, silver powder, coupling agent, low viscous polymer substance, lubricant, antioxidant, ultraviolet Light absorbers, montmorillonite, fire retardant, MDI, nano-aluminium oxide, molybdenum disulfide, nano silicon dioxide, polytetrafluoroethylene (PTFE), glass Glass microballon, polyethylene glycol oxide, glass fibre, chain extender and polyarylate；
Second step：By PA6 resins, silver powder, coupling agent, low viscous polymer substance, lubricant, antioxidant, ultraviolet light Absorbent is put into blender, and 5-10min is mixed at 100-250r/min；
Third walks：Surplus stock is added, puts into kneader, 20-40min is mediated at 100-120 DEG C, then by squeezing Go out machine frit reaction extrusion, double screw extruder used is divided into 9 sections, set temperature is respectively 100-150 DEG C, 200-250 DEG C, 200-250 DEG C, 200-250 DEG C, 210-260 DEG C, 210-260 DEG C, 210-260 DEG C, 220-270 DEG C, 220-270 DEG C, screw rod turns Speed is 300-600r/min；
4th step：Pelletizing cools down, and obtained low viscosity exempts from spray metal silver color daiamid composition.
Advantageous effect：
A kind of herein described low viscosity exempts from spray metal silver color daiamid composition and preparation method thereof and uses the above skill Art scheme compared with prior art, has the following technical effects：1, there are low viscosity characteristics, solve the problems, such as product gas line, draw Stretch intensity 80-88MPa, elongation at break 48-55%, viscosity 74-171Pas under the conditions of 265 DEG C, barrier property is high, and water suction is small 0.1-1%；2, have and exempt from spray characteristics, replacing electroplating or vacuum metallization pattern, residualinternal stress is small, thermal conductivity 2.1- 2.5W/ (mK), shrinking percentage 0.2-0.23%, oxygen index (OI) 24.5-28%, impact strength 60-80kJ/m2；3, the composition section About great amount of cost and environmentally friendly, relative density 1-1.3, mechanical property is good, 150-200 DEG C of heat distortion temperature, acidproof alkali soluble Agent is excellent, short molding cycle；4, notch impact strength 3.6-7.8kJ/m2, compressive strength 150-170MPa, compressive deformation 17- 21%, charring rate 7.5-9.5%, viscosity is relatively low, injection moulding process smooth in exhaust, solves the nearly cast gate of product, remote cast gate end gas Line problem.
Specific implementation mode
Following embodiment further illustrates present context, but should not be construed as the limitation to the application.Without departing substantially from In the case of the application spirit and essence, to changing and replacing made by the application method, step or condition, the application is belonged to Range.
Unless otherwise specified, the conventional means that technological means used in embodiment is well known to those skilled in the art.
Embodiment 1:
A kind of low viscosity exempts from spray metal silver color daiamid composition, and preparation process is：
The first step：80 parts of PA6 resins, 20 parts of silver powder, KH-550 silane coupling agents 0.3 are weighed by mass fraction proportioning Part, 1 part of polycaprolactone, 0.3 part of lubricant, irgasfos 168 be 0.2 part, 0.3 part of UV-327 ultra-violet absorbers, montmorillonite 1 Part, 8 parts of antimony oxide, MDI20 parts, 3 parts of nano-aluminium oxide, 5 parts of molybdenum disulfide, 0.1 part of nano silicon dioxide, poly- four 1 part of 5 parts of vinyl fluoride, 10 parts of glass microballoon, 10 parts of polyethylene glycol oxide, 3 parts of glass fibre, 10 parts of terephthalyl alcohol and polyarylate；
Second step：By PA6 resins, silver powder, KH-550 silane coupling agents, polycaprolactone, lubricant, irgasfos 168, UV-327 ultra-violet absorbers are put into blender, and 5min is mixed at 100r/min；
Third walks：Surplus stock is added, puts into kneader, 20min is mediated at 100 DEG C, it is then molten by extruder Melt reactive extrursion, double screw extruder used is divided into 9 sections, and set temperature is respectively 100-150 DEG C, 200-250 DEG C, 200- 250 DEG C, 200-250 DEG C, 210-260 DEG C, 210-260 DEG C, 210-260 DEG C, 220-270 DEG C, 220-270 DEG C, screw speed is 300-600r/min；
4th step：Pelletizing cools down, and obtained low viscosity exempts from spray metal silver color daiamid composition.
With low viscosity characteristics, solve the problems, such as product gas line, tensile strength 83MPa, elongation at break 48%, 265 DEG C Under the conditions of viscosity 171Pas, barrier property is high, and water suction is small by 1%；With exempting from spray characteristics, replacing electroplating or vacuum metallization mould Formula, residualinternal stress is small, thermal conductivity 2.1W/ (mK), shrinking percentage 0.23%, oxygen index (OI) 24.5%, impact strength 60kJ/m2； The composition saving great amount of cost is simultaneously environmentally friendly, and relative density 1, mechanical property is good, 150 DEG C of heat distortion temperature, acid and alkali-resistance Solvent borne is excellent, short molding cycle；Notch impact strength 7.8kJ/m2, compressive strength 150MPa, compressive deformation 17%, charring rate 7.5%, viscosity is relatively low, injection moulding process smooth in exhaust, solves the problems, such as the nearly cast gate of product, remote cast gate end gas line.
Embodiment 2：
A kind of low viscosity exempts from spray metal silver color daiamid composition, and preparation process is：
The first step：By mass fraction proportioning weigh 80 parts of PA6 resins, 20 parts of silver powder, 0.3 part of titanate coupling agent, 2 parts of polycaprolactone, 0.3 part of lubricant, irgasfos 168 be 0.2 part, 0.3 part of UV-327 ultra-violet absorbers, 4 parts of montmorillonite, hydrogen 16 parts of magnesia, MDI40 parts, 5 parts of nano-aluminium oxide, 5 parts of molybdenum disulfide, 1 part of nano silicon dioxide, polytetrafluoroethylene (PTFE) 15 Part, 30 parts of glass microballoon, 14 parts of polyethylene glycol oxide, 7 parts of glass fibre, 16 parts of terephthalyl alcohol and 5 parts of polyarylate；
Second step：By PA6 resins, silver powder, titanate coupling agent, polycaprolactone, lubricant, irgasfos 168, UV- 327 ultra-violet absorbers are put into blender, and 10min is mixed at 250r/min；
Third walks：Surplus stock is added, puts into kneader, 40min is mediated at 120 DEG C, it is then molten by extruder Melt reactive extrursion, double screw extruder used is divided into 9 sections, and set temperature is respectively 100-150 DEG C, 200-250 DEG C, 200- 250 DEG C, 200-250 DEG C, 210-260 DEG C, 210-260 DEG C, 210-260 DEG C, 220-270 DEG C, 220-270 DEG C, screw speed is 600r/min；
4th step：Pelletizing cools down, and obtained low viscosity exempts from spray metal silver color daiamid composition.
With low viscosity characteristics, solve the problems, such as product gas line, tensile strength 81MPa, elongation at break 48-55%, 265 Viscosity 146Pas under the conditions of DEG C, barrier property is high, and water suction is small by 0.5%；With exempting from spray characteristics, replacing electroplating or vacuum metallizing Category pattern, residualinternal stress is small, thermal conductivity 2.3W/ (mK), shrinking percentage 0.21%, oxygen index (OI) 26%, impact strength 70kJ/ m2；The composition saving great amount of cost is simultaneously environmentally friendly, and relative density 1.2, mechanical property is good, 180 DEG C of heat distortion temperature, soft Change 280 DEG C of temperature, acid and alkali-resistance solvent borne is excellent, short molding cycle；Notch impact strength 7.6kJ/m2, compressive strength 160MPa, pressure Compression deformation 19%, charring rate 8.5%, viscosity is relatively low, injection moulding process smooth in exhaust, solves the nearly cast gate of product, remote cast gate end Gas line problem.
Embodiment 3:
A kind of low viscosity exempts from spray metal silver color daiamid composition, and preparation process is：
The first step：80 parts of PA6 resins, 20 parts of silver powder, KH-550 silane coupling agents 0.3 are weighed by mass fraction proportioning Part, 5 parts of polycaprolactone, 0.3 part of lubricant, irgasfos 168 be 0.2 part, 0.3 part of UV-P ultra-violet absorbers, 2 parts of montmorillonite, 10 parts of magnesium hydroxide, MDI25 parts, 3 parts of nano-aluminium oxide, 5 parts of molybdenum disulfide, 0.2 part of nano silicon dioxide, polytetrafluoroethyl-ne 2 parts of 8 parts of alkene, 15 parts of glass microballoon, 11 parts of polyethylene glycol oxide, 4 parts of glass fibre, 11 parts of terephthalyl alcohol and polyarylate；
Second step：By PA6 resins, silver powder, KH-550 silane coupling agents, polycaprolactone, lubricant, irgasfos 168, UV-P ultra-violet absorbers are put into blender, and 8min is mixed at 200r/min；
Third walks：Surplus stock is added, puts into kneader, 30min is mediated at 110 DEG C, it is then molten by extruder Melt reactive extrursion, double screw extruder used is divided into 9 sections, and set temperature is respectively 100-150 DEG C, 200-250 DEG C, 200- 250 DEG C, 200-250 DEG C, 210-260 DEG C, 210-260 DEG C, 210-260 DEG C, 220-270 DEG C, 220-270 DEG C, screw speed is 450r/min；
4th step：Pelletizing cools down, and obtained low viscosity exempts from spray metal silver color daiamid composition.
With low viscosity characteristics, solve the problems, such as product gas line, tensile strength 85MPa, elongation at break 55%, 265 DEG C Under the conditions of viscosity 102Pas, barrier property is high, and water suction is small by 0.1%；With exempting from spray characteristics, replacing electroplating or vacuum metallization Pattern, residualinternal stress is small, thermal conductivity 2.5W/ (mK), shrinking percentage 0.2%, oxygen index (OI) 28%, impact strength 80kJ/m2；It should Composition saving great amount of cost is simultaneously environmentally friendly, and relative density 1.3, mechanical property is good, 200 DEG C of heat distortion temperature, softening temperature 300 DEG C of degree, acid and alkali-resistance solvent borne is excellent, short molding cycle；Notch impact strength 7.2kJ/m2, compressive strength 170MPa, compression change Shape 17%, charring rate 9.5%, viscosity is relatively low, injection moulding process smooth in exhaust, solves the nearly cast gate of product, remote cast gate end gas line Problem.
Embodiment 4:
A kind of low viscosity exempts from spray metal silver color daiamid composition, and preparation process is：
The first step：By mass fraction proportioning weigh 80 parts of PA6 resins, 20 parts of silver powder, 0.3 part of titanate coupling agent, 10 parts of polycaprolactone, 0.3 part of lubricant, irgasfos 168 be 0.2 part, 0.3 part of UV-P ultra-violet absorbers, 3 parts of montmorillonite, three Aoxidize 14 parts of two antimony, MDI35 parts, 4 parts of nano-aluminium oxide, 5 parts of molybdenum disulfide, 0.8 part of nano silicon dioxide, polytetrafluoroethyl-ne 4 parts of 12 parts of alkene, 25 parts of glass microballoon, 13 parts of polyethylene glycol oxide, 6 parts of glass fibre, 15 parts of terephthalyl alcohol and polyarylate；
Second step：By PA6 resins, silver powder, titanate coupling agent, polycaprolactone, lubricant, irgasfos 168, UV-P Ultra-violet absorber is put into blender, and 6min is mixed at 150r/min；
Third walks：Surplus stock is added, puts into kneader, 25min is mediated at 105 DEG C, it is then molten by extruder Melt reactive extrursion, double screw extruder used is divided into 9 sections, and set temperature is respectively 100-150 DEG C, 200-250 DEG C, 200- 250 DEG C, 200-250 DEG C, 210-260 DEG C, 210-260 DEG C, 210-260 DEG C, 220-270 DEG C, 220-270 DEG C, screw speed is 550r/min；
4th step：Pelletizing cools down, and obtained low viscosity exempts from spray metal silver color daiamid composition.
With low viscosity characteristics, solve the problems, such as product gas line, tensile strength 88MPa, elongation at break 52%, 265 DEG C Under the conditions of viscosity 98Pas, barrier property is high, and water suction is small by 0.8%；With exempting from spray characteristics, replacing electroplating or vacuum metallization Pattern, residualinternal stress is small, thermal conductivity 2.4W/ (mK), shrinking percentage 0.21%, oxygen index (OI) 27%, impact strength 78kJ/m2； The composition saving great amount of cost is simultaneously environmentally friendly, and relative density 1.23, mechanical property is good, 180 DEG C of heat distortion temperature, softening 290 DEG C of temperature, acid and alkali-resistance solvent borne is excellent, short molding cycle；Notch impact strength 6.9kJ/m2, compressive strength 155MPa, compression Deformation 20%, charring rate 9%, viscosity is relatively low, injection moulding process smooth in exhaust, solves the nearly cast gate of product, remote cast gate end gas line Problem.
Embodiment 5:
A kind of low viscosity exempts from spray metal silver color daiamid composition, and preparation process is：
The first step：90 parts of PA6 resins, 10 parts of silver powder, KH-550 silane coupling agents 0.3 are weighed by mass fraction proportioning Part, 5 parts of polycaprolactone, 0.3 part of lubricant, irgasfos 168 be 0.2 part, 0.3 part of UV-P ultra-violet absorbers, 2 parts of montmorillonite, 12 parts of magnesia, MDI30 parts, 4 parts of nano-aluminium oxide, 5 parts of molybdenum disulfide, 0.5 part of nano silicon dioxide, polytetrafluoroethylene (PTFE) 3 parts of 10 parts, 20 parts of glass microballoon, 12 parts of polyethylene glycol oxide, 5 parts of glass fibre, 13 parts of terephthalyl alcohol and polyarylate；
Second step：By PA6 resins, silver powder, KH-550 silane coupling agents, polycaprolactone, lubricant, irgasfos 168, UV-P ultra-violet absorbers are put into blender, and 8min is mixed at 220r/min；
Third walks：Surplus stock is added, puts into kneader, 35min is mediated at 115 DEG C, it is then molten by extruder Melt reactive extrursion, double screw extruder used is divided into 9 sections, and set temperature is respectively 100-150 DEG C, 200-250 DEG C, 200- 250 DEG C, 200-250 DEG C, 210-260 DEG C, 210-260 DEG C, 210-260 DEG C, 220-270 DEG C, 220-270 DEG C, screw speed is 500r/min；
4th step：Pelletizing cools down, and obtained low viscosity exempts from spray metal silver color daiamid composition.
With low viscosity characteristics, solve the problems, such as product gas line, tensile strength 80MPa, elongation at break 52%, 265 DEG C Under the conditions of viscosity 85Pas, barrier property is high, and water suction is small by 0.8%；With exempting from spray characteristics, replacing electroplating or vacuum metallization Pattern, residualinternal stress is small, thermal conductivity 2.4W/ (mK), shrinking percentage 0.23%, oxygen index (OI) 26%, impact strength 60-80kJ/ m2；The composition saving great amount of cost is simultaneously environmentally friendly, and relative density 1.1, mechanical property is good, 190 DEG C of heat distortion temperature, soft Change 290 DEG C of temperature, acid and alkali-resistance solvent borne is excellent, short molding cycle；Notch impact strength 3.9kJ/m2, compressive strength 165MPa, pressure Compression deformation 20%, charring rate 9%, viscosity is relatively low, injection moulding process smooth in exhaust, solves the nearly cast gate of product, remote cast gate end gas Line problem.
Embodiment 6:
A kind of low viscosity exempts from spray metal silver color daiamid composition, and preparation process is：
The first step：By mass fraction proportioning weigh 90 parts of PA6 resins, 10 parts of silver powder, 0.3 part of titanate coupling agent, 10 parts of polycaprolactone, 0.3 part of lubricant, irgasfos 168 be 0.2 part, 0.3 part of UV-327 ultra-violet absorbers, 3 parts of montmorillonite, 12 parts of antimony oxide, MDI30 parts, 4 parts of nano-aluminium oxide, 5 parts of molybdenum disulfide, 0.6 part of nano silicon dioxide, polytetrafluoro 4 parts of 12 parts of ethylene, 25 parts of glass microballoon, 13 parts of polyethylene glycol oxide, 6 parts of glass fibre, 14 parts of terephthalyl alcohol and polyarylate；
Second step：By PA6 resins, silver powder, titanate coupling agent, polycaprolactone, lubricant, irgasfos 168, UV- 327 ultra-violet absorbers are put into blender, and 9min is mixed at 120r/min；
Third walks：Surplus stock is added, puts into kneader, 38min is mediated at 115 DEG C, it is then molten by extruder Melt reactive extrursion, double screw extruder used is divided into 9 sections, and set temperature is respectively 100-150 DEG C, 200-250 DEG C, 200- 250 DEG C, 200-250 DEG C, 210-260 DEG C, 210-260 DEG C, 210-260 DEG C, 220-270 DEG C, 220-270 DEG C, screw speed is 400r/min；
4th step：Pelletizing cools down, and obtained low viscosity exempts from spray metal silver color daiamid composition.
With low viscosity characteristics, solve the problems, such as product gas line, tensile strength 83MPa, elongation at break 54%, 265 DEG C Under the conditions of viscosity 74Pas, barrier property is high, and water suction is small by 0.22%；With exempting from spray characteristics, replacing electroplating or vacuum metallization Pattern, residualinternal stress is small, thermal conductivity 2.34W/ (mK), shrinking percentage 0.215%, oxygen index (OI) 25.7%, impact strength 77kJ/ m2；The composition saving great amount of cost is simultaneously environmentally friendly, and relative density 1.2, mechanical property is good, 190 DEG C of heat distortion temperature, soft Change 270 DEG C of temperature, acid and alkali-resistance solvent borne is excellent, short molding cycle；Notch impact strength 3.6kJ/m2, compressive strength 16MPa, compression Deformation 17%, charring rate 9.5%, viscosity is relatively low, injection moulding process smooth in exhaust, solves the nearly cast gate of product, remote cast gate end gas Line problem.
Comparative example 1:
A kind of low viscosity exempts from spray metal silver color daiamid composition, and preparation process is：
The first step：80 parts of PA6 resins, 20 parts of silver powder, KH-550 silane coupling agents 0.3 are weighed by mass fraction proportioning Part, 0.3 part of lubricant, irgasfos 168 be 0.2 part, 0.3 part of UV-P ultra-violet absorbers, 2 parts of montmorillonite, 9 parts of magnesium hydroxide, MDI25 parts, 4 parts of nano-aluminium oxide, 5 parts of molybdenum disulfide, 0.3 part of nano silicon dioxide, 8 parts of polytetrafluoroethylene (PTFE), glass are micro- 2 parts of 15 parts of pearl, 11 parts of polyethylene glycol oxide, 4 parts of glass fibre, 11 parts of terephthalyl alcohol and polyarylate；
Second step：PA6 resins, silver powder, KH-550 silane coupling agents, lubricant, irgasfos 168, ultraviolet light are inhaled It receives in agent input blender, 5min is mixed at 100r/min；
Third walks：Surplus stock is added, puts into kneader, 20min is mediated at 100 DEG C, it is then molten by extruder Melt reactive extrursion, double screw extruder used is divided into 9 sections, and set temperature is respectively 100-150 DEG C, 200-250 DEG C, 200- 250 DEG C, 200-250 DEG C, 210-260 DEG C, 210-260 DEG C, 210-260 DEG C, 220-270 DEG C, 220-270 DEG C, screw speed is 300r/min；
4th step：Pelletizing cools down, and obtained low viscosity exempts from spray metal silver color daiamid composition.
With low viscosity characteristics, solve the problems, such as product gas line, tensile strength 82MPa, elongation at break 48-55%, 265 Viscosity 183Pas under the conditions of DEG C, barrier property is high, and water suction is small by 1%；With exempting from spray characteristics, replacing electroplating or vacuum metallization Pattern, residualinternal stress is small, thermal conductivity 2.1W/ (mK), shrinking percentage 0.23%, oxygen index (OI) 24.5%, impact strength 60kJ/ m2；The composition saving great amount of cost is simultaneously environmentally friendly, and relative density 1, mechanical property is good, 150 DEG C of heat distortion temperature, softening 260 DEG C of temperature, acid and alkali-resistance solvent borne is excellent, short molding cycle；Notch impact strength 7.7kJ/m2, compressive strength 150MPa, compression Deformation 21%, charring rate 7.5%, viscosity is relatively low, injection moulding process smooth in exhaust, solves the nearly cast gate of product, remote cast gate end gas Line problem.
Comparative example 2:
A kind of low viscosity exempts from spray metal silver color daiamid composition, and preparation process is：
The first step：By mass fraction proportioning weigh 90 parts of PA6 resins, 10 parts of silver powder, 0.3 part of titanate coupling agent, 0.3 part of lubricant, irgasfos 168 be 0.2 part, 0.3 part of UV-327 ultra-violet absorbers, 2 parts of montmorillonite, antimony oxide 13 Part, MDI33 parts, 4.5 parts of nano-aluminium oxide, 5 parts of molybdenum disulfide, 0.6 part of nano silicon dioxide, 11 parts of polytetrafluoroethylene (PTFE), 4 parts of 22 parts of glass microballoon, 13 parts of polyethylene glycol oxide, 6 parts of glass fibre, 15 parts of terephthalyl alcohol and polyarylate；
Second step：By PA6 resins, silver powder, titanate coupling agent, lubricant, irgasfos 168, UV-327 ultraviolet lights Absorbent is put into blender, and 10min is mixed at 250r/min；
Third walks：Surplus stock is added, puts into kneader, 40min is mediated at 120 DEG C, it is then molten by extruder Melt reactive extrursion, double screw extruder used is divided into 9 sections, and set temperature is respectively 100-150 DEG C, 200-250 DEG C, 200- 250 DEG C, 200-250 DEG C, 210-260 DEG C, 210-260 DEG C, 210-260 DEG C, 220-270 DEG C, 220-270 DEG C, screw speed is 600r/min；
4th step：Pelletizing cools down, and obtained low viscosity exempts from spray metal silver color daiamid composition.
With low viscosity characteristics, solve the problems, such as product gas line, tensile strength 76MPa, elongation at break 54%, 265 DEG C Under the conditions of viscosity 157Pas, barrier property is high, and water suction is small by 0.17%；With exempting from spray characteristics, replacing electroplating or vacuum metallizing Category pattern, residualinternal stress is small, thermal conductivity 2.15W/ (mK), shrinking percentage 0.212%, oxygen index (OI) 26.3%, impact strength 66kJ/m2；The composition saving great amount of cost is simultaneously environmentally friendly, and relative density 1.24, mechanical property is good, heat distortion temperature 168 DEG C, 295 DEG C of softening temperature, acid and alkali-resistance solvent borne is excellent, short molding cycle；Notch impact strength 3.8kJ/m2, compressive strength 155MPa, compressive deformation 18.6%, charring rate 8.4%, viscosity is relatively low, injection moulding process smooth in exhaust, solve the nearly cast gate of product, Remote cast gate end gas line problem.

Claims (9)

1. a kind of low viscosity exempts from spray metal silver color daiamid composition, it is characterised in that：The low viscosity exempts from spray metal silver The raw material of color daiamid composition is matched by mass fraction：80-90 parts of PA6 resins, 10-20 parts of silver powder, coupling agent 0.3 Part, viscous polymer substance 1-10 parts low, 0.3 part of lubricant, 0.2 part of antioxidant, 0.3 part of ultra-violet absorber, montmorillonite 1-4 Part, 8-16 parts of fire retardant, MDI20-40 parts, 3-5 parts of nano-aluminium oxide, 5 parts of molybdenum disulfide, nano silicon dioxide 0.1-1 Part, 5-15 parts of polytetrafluoroethylene (PTFE), 10-30 parts of glass microballoon, 10-14 parts of polyethylene glycol oxide, 3-7 parts of glass fibre, chain extender 10- 16 parts and 1-5 parts of polyarylate.
2. low viscosity according to claim 1 exempts from spray metal silver color daiamid composition, it is characterised in that：The coupling Agent uses KH-550 silane coupling agents or titanate coupling agent.
3. low viscosity according to claim 1 exempts from spray metal silver color daiamid composition, it is characterised in that：It is described low viscous Polymer substance uses polycaprolactone.
4. low viscosity according to claim 1 exempts from spray metal silver color daiamid composition, it is characterised in that：The lubrication Agent uses.
5. low viscosity according to claim 1 exempts from spray metal silver color daiamid composition, it is characterised in that：The antioxygen Agent uses irgasfos 168 or antioxidant 1010.
6. low viscosity according to claim 1 exempts from spray metal silver color daiamid composition, it is characterised in that：It is described ultraviolet Light absorbers use UV-327 or UV-P.
7. low viscosity according to claim 1 exempts from spray metal silver color daiamid composition, it is characterised in that：The chain extension Agent uses terephthalyl alcohol.
8. low viscosity according to claim 1 exempts from spray metal silver color daiamid composition, it is characterised in that：It is described fire-retardant Agent uses magnesia, antimony oxide or magnesium hydroxide.
9. low viscosity described in a kind of claim 1 exempts from the preparation method of spray metal silver color daiamid composition, it is characterised in that Step is：
The first step：PA6 resins, silver powder, coupling agent, low viscous polymer substance, lubricant, antioxidant, ultraviolet light is weighed to inhale Receipts agent, montmorillonite, fire retardant, MDI, nano-aluminium oxide, molybdenum disulfide, nano silicon dioxide, polytetrafluoroethylene (PTFE), glass are micro- Pearl, polyethylene glycol oxide, glass fibre, chain extender and polyarylate；
Second step：By PA6 resins, silver powder, coupling agent, low viscous polymer substance, lubricant, antioxidant, ultraviolet radiation absorption Agent is put into blender, and 5-10min is mixed at 100-250r/min；
Third walks：Surplus stock is added, puts into kneader, 20-40min is mediated at 100-120 DEG C, then passes through extruder Frit reaction squeezes out, and double screw extruder used is divided into 9 sections, and set temperature is respectively 100-150 DEG C, 200-250 DEG C, 200- 250 DEG C, 200-250 DEG C, 210-260 DEG C, 210-260 DEG C, 210-260 DEG C, 220-270 DEG C, 220-270 DEG C, screw speed is 300-600r/min；
4th step：Pelletizing cools down, and obtained low viscosity exempts from spray metal silver color daiamid composition.
CN201810443419.2A 2018-05-10 2018-05-10 A kind of low viscosity exempts from spray metal silver color daiamid composition and preparation method thereof Pending CN108456419A (en)

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CN109852042A (en) * 2018-11-21 2019-06-07 苏州市同发塑业有限公司 A kind of nylon composite materials and preparation method thereof of fire-retardant anti-impact high stable
CN110256666A (en) * 2019-06-28 2019-09-20 华峰集团有限公司 Ultralow bondable polyamide composition and preparation method thereof
CN110540748A (en) * 2019-10-14 2019-12-06 广东圆融新材料有限公司 Spraying-free polyamide 11 material and preparation method thereof

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CN106398136A (en) * 2016-08-31 2017-02-15 上海中镭新材料科技有限公司 Low-viscosity polyester engineering plastic for NMT (nano molding technology) and preparation method thereof
CN106916445A (en) * 2017-04-21 2017-07-04 金旸（厦门）新材料科技有限公司 One kind exempts from spraying transparent glass fiber reinforced nylon resin material and preparation method thereof

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CN103897387A (en) * 2014-03-13 2014-07-02 江苏康非特动力科技有限公司 High strength wearable polyamide composite material and preparation method thereof
CN106398136A (en) * 2016-08-31 2017-02-15 上海中镭新材料科技有限公司 Low-viscosity polyester engineering plastic for NMT (nano molding technology) and preparation method thereof
CN106916445A (en) * 2017-04-21 2017-07-04 金旸（厦门）新材料科技有限公司 One kind exempts from spraying transparent glass fiber reinforced nylon resin material and preparation method thereof

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Publication number Priority date Publication date Assignee Title
CN109852042A (en) * 2018-11-21 2019-06-07 苏州市同发塑业有限公司 A kind of nylon composite materials and preparation method thereof of fire-retardant anti-impact high stable
CN110256666A (en) * 2019-06-28 2019-09-20 华峰集团有限公司 Ultralow bondable polyamide composition and preparation method thereof
CN110256666B (en) * 2019-06-28 2022-01-14 华峰集团有限公司 Ultra-low viscosity polyamide composition and preparation method thereof
CN110540748A (en) * 2019-10-14 2019-12-06 广东圆融新材料有限公司 Spraying-free polyamide 11 material and preparation method thereof
CN110540748B (en) * 2019-10-14 2022-03-25 广东圆融新材料有限公司 Spraying-free polyamide 11 material and preparation method thereof

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