CN106928682B - A kind of laser direct forming material and preparation method thereof with good comprehensive performance - Google Patents
A kind of laser direct forming material and preparation method thereof with good comprehensive performance Download PDFInfo
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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
- C08L69/00—Compositions of polycarbonates; Compositions of derivatives of polycarbonates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
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- 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
- C08K2201/002—Physical properties
- C08K2201/003—Additives being defined by their diameter
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- 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
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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
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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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
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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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
- 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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Abstract
The invention discloses a kind of laser direct forming materials with good comprehensive performance, with good thermal stability and high tenacity, especially suitable for laser direct forming.In percentage by weight, it includes following components: the polycarbonate of 65-95%；The laser direct forming additive of 1-20%, including cupric and stanniferous laser direct forming additive, and the ratio of the two is between 1/10-9/10；The toughener of 1-15wt%；The inorganic nano-particle of 1-10%；Other different additives of 0-2%.The invention also discloses a kind of methods for preparing above-mentioned laser direct forming material.The laser direct forming material obtained by this method shows the notch impact strength of good thermal stability and > 500J/m in process.
Description
Technical field
The invention belongs to laser direct forming technical field of material, are specifically related to a kind of with good thermal stability
With the laser direct forming material of high tenacity and preparation method thereof.
Background technique
LDS is the abbreviation of Laser Direct Structuring, i.e. laser direct forming, and being that a kind of profession is radium-shine adds
The 3D-MID production technology of work, injection and electroplating process, principle are to assign common plastic cement element/circuit board to electric interconnection
The functions such as support, protection of function, support component function and plastic casing, and by mechanical entities in conjunction with conductive pattern and
The functions such as shielding, the antenna of generation are incorporated into one, form so-called 3D-MID, are suitable for local fine rule road production.
LDS can be largely avoided pollution and water consume of the conventional plastic electroplating technology to environment, simplify production stream
Journey, by the flexibility of laser, the plasticity and functional combination of precision and engineering plastics provide flexible and changeable set
Simultaneously fast 3D molding, simultaneous processing high resolution may be implemented in meter space.
This technology can be applicable to antenna for mobile phone, notebook computer antenna, automobile electrical sub-circuit, ATM shell and medical treatment
Grade hearing aid etc..Such as the current most common antenna for mobile phone application, LDS can be directly radium-shine on phone housing by antenna, design spirit
Living, freedom degree height, not only avoids internal mobile phone metal from interfering, more diminution mobile phone volume, plays and saves space and mitigation product weight
The effect of amount.
The production process of LDS is to add metallic addition and auxiliary agent in the plastic, be extruded into particle, be then molded into hair
Blank, then laser is carried out to it, it is therefore an objective to etched area and activator metal are formed, chemical plating is carried out later, in etched area shape
At conductive path, finally assemble.
For in terms of the plastics, key is the selection of metallic addition and auxiliary agent.From theory analysis, laser direct forming
Additive is the metal oxide or metal complex with special crystalline structure mostly, therefore there are one in the complex systems
Determine the free metal ion or atom of content, they will necessarily have an impact the performance of matrix resin.Distinguishingly, for poly- carbon
Acid esters system, free metal ion or atom are the catalyst that catalytic resin is degraded；Meanwhile inorganic metal compound or having
Alkalinity is presented in machine metal mixture to varying degrees, can also be further exacerbated by the degradation reaction degree of polycarbonate compound,
So that material loses practical value.Therefore, it is studied in the complex systems and solves laser direct forming additive to poly-
The influence of carbonic ester system thermodynamics and processing performance is to prepare the core and critical issue of the material.
For the concrete application of material, if the selection of laser direct forming additive is improper, it may cause to be molded
The defects of rear surface generates filamentary silver, point is formed, causes the slow even not plating of later period chemical plating plating and the test of hundred lattice cannot
Pass through；Or mechanical performance decline is obvious after chemical plating, is not able to satisfy the requirement of materials'use performance.
Summary of the invention
The present invention provides a kind of plating performance is good, and the laser with good thermal stability and mechanical performance is straight
Connect moulding material.
Invention also provides a kind of preparation methods of above-mentioned laser direct forming material.
A kind of laser direct forming material with good comprehensive performance (with good thermal stability and high tenacity), it is main
It will be by being mixed following weight percentage components:
As further preferred, the laser direct forming material with good thermal stability and high tenacity, mainly
By being mixed following weight percentage components:
Laser direct forming material of the invention is to include thermoplastic matrix resin, laser direct forming additive, toughening
The thermoplastic compound that agent, inorganic nano-particle and other additives are blended.The thermoplastic compound of obtained blending has good
Good thermal stability and high tenacity can be used in laser direct forming (LDS) method.In various further embodiments, it is blended
Thermoplastic compound thermoplastic matrix resin be polycarbonate.The present invention also relates to the methods or packet that manufacture these compositions
Product containing these compositions.
In the present invention, the polycarbonate includes homo-polycarbonate and copolymerization carbon with repetitive structure carbonate unit
Acid esters can be fatty poly-ester carbonate, one or two kinds of mixture in alicyclic polycarbonate or aromatic copolycarbonate.
In the present invention, suitable polycarbonate can be prepared for example, by the methods of interfacial polymerization and melt polymerization.A kind of specific
In embodiment, polycarbonate is derived from the linear homopolymer of bisphenol-A, i.e., containing the polycarbonate of structure of bisphenol A.Polycarbonate
It is about 18000 to about 35000 by the weight average molecular weight that gel permeation chromatography measures.
In the present invention, the laser direct forming additive (LDS additive) includes middle cupric LDS additive and stanniferous
LDS additive.The cupric LDS additive includes copper and iron spinelle, cupric oxidation magnalium, copper chromium manganese mixed oxides, copper manganese
One or more of Iron mixed oxide, alkali formula cupric phosphate, further preferably alkali formula cupric phosphate.Heretofore described contains
Tin LDS additive include one of zinc stannate, stannous pyrophosphate, phosphoric acid tin, stannic oxide, stannous pyrophosphate, stannous oxide or
It is several, further preferably zinc stannate or stannous pyrophosphate.As still more preferably, the LDS additive is alkali formula phosphoric acid
The composition of copper and stannous pyrophosphate, or the composition for alkali formula cupric phosphate and zinc stannate.
For cupric LDS additive, chemical plating plating is fast, and coat of metal adhesion strength is high, and it is high to belong to modification efficiency
Additive；The disadvantage is that be easy to causeing polycarbonate to degrade, while copper class compound is mostly black, so that the color of final products
It is limited.And the characteristics of stanniferous LDS additive are as follows: chemical plating plating is slow, and coat of metal adhesion strength is not high, and the chemical plating period is long,
Influence the efficiency of large-scale production；But it is smaller on polycarbonate degradation influence, while light color or other colour system LDS materials are set
In respect of advantage.
Cupric LDS additive and stanniferous LDS additive are used cooperatively in the present invention, and constituent content is carried out excellent
Change processing, makes full use of the characteristic of each component to achieve the purpose that synergistic, enables the thermal stability of polycarbonate compound
It is maintained at higher level, and provides wide in range design space for Gao Baidu (value > 90 L) laser formation material.LDS additive is matched
It closes using the mechanical property and processing performance for facilitating enhancing LDS polycarbonate, LDS polycarbonate compound was forming
Resistance to precipitation in journey, solvent resistant, resistance to salinization performance significantly improve, so that final injecting products have enough toughness to meet thin-walled
The requirement of design, while there is upper plating ability well.Existed in the present invention using cupric LDS additive and stanniferous LDS additive
The synergistic of special ratios range solves the balance of laser direct forming material key performance in practical applications: thermal stability,
High tenacity, the holding of light color and speed and coating adhesion strength with chemical plating after laser activation.As further preferred, institute
The mass ratio of the cupric LDS additive and stanniferous LDS additive stated is between 1/10-9/10；It is described as further preferred
Cupric LDS additive and stanniferous LDS additive mass ratio be 2/10-5/10.
Heretofore described toughener includes the rubber toughener and thermoplastic elastomer (TPE) with core-shell structure.Each
In kind of embodiment, the rubber toughener with core-shell structure by being grafted the core structure of the rubber like of one or more shells thereon
At.Core is substantially made of acrylic rubber or butadiene rubber, and shell preferably comprise vinyl aromatic compounds and/
Or (methyl) alkyl acrylate.Core and/or shell usually include the multi-functional chemical combination that can serve as crosslinking agent and/or grafting agent
Object.Preferably, the rubber toughener with core-shell structure is ABS (acrylonitrile-butadiene-styrene (ABS) polymer), MBS
(Methacrylate-butadiene-styrene), silicone rubber (organosilicon/acrylic acid/methylmethacrylate polymer)
The mixture of middle one or two.In various embodiments, thermoplastic elastomer (TPE) include phenylethylene, olefines, diene class,
Esters, organic silicon and vinyl etc..Preferably, the thermoplastic elastomer (TPE) is SBS (s-B-S block
Copolymer), SEBS (styrene-ethylene/butylene-styrene block copolymer), EVA (ethylene-vinyl acetate copolymer), POE
One or two kinds of mixture in (polyolefin elastomer).
Heretofore described inorganic nano-particle includes nano silica, nano aluminium oxide, nanometer calcium carbonate and is received
One or more of rice titanium dioxide.In various embodiments, the average grain diameter of inorganic nano-particle be less than or equal to
About 100 nanometers.In further embodiment, the average grain diameter of inorganic nano-particle is less than or equal to about 80 nanometers.?
It may include the surface treatment of inorganic nano-particle in further embodiment.
Except blend polymer, laser direct forming additive, outside toughener and inorganic nano-particle, plastics of the invention
Molding composite may be embodied in the various additives generally comprised in such resin combination.It can be in the present invention
The example for the additive for including includes, but is not limited to, heat stabilizer, antioxidant, light stabilizer, plasticizer (such as season
Penta tetrol stearate), antistatic agent, release agent, the combination of one or more above-mentioned additives in flow improver additive.As excellent
Choosing, other described additives include heat stabilizer, release agent, antioxidant and plasticizer.
In various embodiments, antioxidant includes main antioxidant and secondary antioxidant.Further
Embodiment in, antioxidant is present in system with the amount of about 0.01wt% to about 0.5wt%.
Plastic compound involved in the present invention laser direct forming material of good comprehensive performance (i.e. with) into
One step includes stabilizer.In various embodiments, stabilizer is to be present in system with the amount of 0.01wt% to about 0.5wt%
In.In further embodiment, stabilizer may include heat stabilizer and light stabilizer.Suitable heat stabilizer include by
Hinder phenols, organic phosphites, phosphoric acid ester, or the combination comprising at least one of above-mentioned heat stabilizer.
The release agent being suitble in the present invention may include metallic stearate, polyethylene wax, organosilicon etc. or comprising above-mentioned
The combination of at least one of release agent.
The flow improver additive being suitble in the present invention may include low molecular weight hydrocarbon resinoid (straight chain or ring-type), polystyrene
And its copolymer.
As specifically preferably, polycarbonate can be 65 parts, 70 parts, 75 parts, 80 parts, 85 parts, 90 parts or 95 in the present invention
Part etc., laser direct forming additive can be 1 part, 2 parts, 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts, 9 parts, 10 parts, 11 parts, 12
Part, 13 parts, 14 parts, 15 parts, 16 parts, 17 parts, 18 parts, 19 parts or 20 parts etc., toughener can be 1 part, 3 parts, 5 parts, 7 parts, 9
Part, 11 parts, 13 parts or 15 parts etc., inorganic nano-particle can for 1 part, 2 parts, 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts, 9 parts or
10 parts etc., other additives can be 0.3 part, 0.5 part, 0.8 part, 1.0 parts, 1.5 parts or 2.0 parts etc..
Another aspect of the present invention provides a kind of side for preparing the above-mentioned plastic compound that can be used for laser direct forming
Method.Preparation method includes the following steps: by mass, by 65-95 parts of polycarbonate, 1-20 parts of LDS additive, toughener 1-
15 parts, premix uniformly, is squeezed 1-10 parts and other additive 0-2 parts of inorganic nano-particle by double screw extruder in certain sequence
Melt blending extruding pelletization out obtains the plastic composite materials that can be used for laser direct forming.
The respective advantage and disadvantage of the present invention comprehensive copper-based LDS additive and tinbase LDS additive, have found copper and tin LDS add
Add agent in the synergistic of special ratios range, reaches the balance in performance.Obtained material has good thermal stability, high-ductility
Property, light color and with characteristics such as the holdings of speed and coating adhesion strength of chemical plating after laser activation.
Plastic compound plating performance after with laser active of the present invention is good, and has good heat
Stability and processing performance, the notch impact strength that standard batten is tested after injection molding is up to 500J/m or more.
Specific embodiment
To further illustrate the technical scheme of the present invention combined with specific embodiments below.Following embodiment is intended to this field
Middle those of ordinary skill provides how to manufacture and evaluate disclosed herein and claimed method, device and system it is complete
Whole disclosure and description are not intended to be limiting the disclosure to be purely exemplary.
Raw material used in the embodiment of the present invention can use commercial product.
Examples 1 to 6
Raw material total amount is 10kg, and by weight percentage, component is as follows:
Polycarbonate 87.2wt%
LDS additive 3wt%
Toughener 4wt%
Inorganic nano-particle 5wt%
Other additive 0.8wt%
Polycarbonate uses the polycarbonate containing structure of bisphenol A in the present embodiment, including two kinds: a kind of polycarbonate exists
300 DEG C, the MFR of 1.2Kg be 8g/min, weight average molecular weight 24000, weight percent amount used is 42wt%；A kind of poly- carbon
Acid esters is 18g/min in the MFR of 300 DEG C, 1.2Kg, and weight average molecular weight 19500, weight percent amount used is 45.2wt%.
LDS additive includes two kinds: LDS-1 (alkali formula cupric phosphate) and LDS-2 (stannous pyrophosphate), total original in the present embodiment
Weight percent amount both in material is 3wt%.
Toughener (IM) is that organosilicon core-shell polymer (uses the beautiful sun Metablen of Mitsubishi in the present embodiment
S2001)。
It is aluminium oxide less than or equal to 80 nanometers that inorganic nano-particle, which is average grain diameter, in the present embodiment.
Other additives include antioxidant 1010, irgasfos 168 and polyethylene wax (three's additional amount difference in the present embodiment
For 0.12wt%, 0.08wt% and 0.6wt%.Polyethylene wax average molecular weight is 2000~3000).
Preparation method: by mass, by polycarbonate, LDS additive, toughener, inorganic nano-particle and other additions
Agent premix uniformly, by double screw extruder squeezes out melt blending extruding pelletization, obtains the plastics that can be used for laser direct forming
Mold compound material.Detailed process are as follows: weigh to required raw material, and with about 1000 revs/min to 3000 revs/min
The revolving speed of clock is pre-mixed in a high speed mixer.Pre-composition is fed into double screw extruder, institute is prepared by melting extrusion
There is sample, using about 260 DEG C to about 280 DEG C of temperature, screw speed is maintained at about 300 revs/min and torque value remains
About 50% to about 60%, and operated under Standard processing conditions well known to those skilled in the art.After pellet is squeezed out,
Before moulding test sample, in about 100 DEG C of dried granules.It is tieed up between temperature is bent for 260 DEG C to 280 DEG C and mold temperature
It holds and carries out molding process in the case where 80 DEG C.
The different ratio of two kinds of LDS additives is illustrated in table 1 to polycarbonate compound thermal stability, mechanical performance
With the influence of plating performance (or changing plating performance).
Here compound thermal stability is characterized with the variation (MFR shift) of melt flow rate (MFR), specific test-strips
Part are as follows: at 300 DEG C, melt flow rate (MFR) is measured under the conditions of 1.2Kg, the sample residence time is respectively set as 6 minutes and 18 minutes,
Obtain the numerical value of MFR1 (6 minutes) and MFR2 (18 minutes).Correspondingly, MFR shift=(MFR2-MFR1)/MFR1*100；It is logical
Often think that this index just can satisfy real requirement less than 30.
Mechanical performance is characterized by notch impact strength (J/m), elongation at break (%), heat distortion temperature (DEG C).
About plating performance, data set is between 1-10, wherein the situation that 10 corresponding plating performances are best.Usually recognize
Being greater than or equal to 9 for this index just can satisfy real requirement.
As it can be seen from table 1 in the case where LDS-1 (alkali formula cupric phosphate) is used alone, composite melt flow rate
Variation highly significant, it is meant that polycarbonate matrix has apparent degradation, and material thermal stability is poor.The correspondingly notch of sample
Impact strength is relatively low.In the case where cupric LDS additive and stanniferous LDS additive are used cooperatively, complex systems melt
The variation of body flow rate is significantly improved, while the notch impact strength of sample and elongation at break are also maintained at compared with Gao Shui
It is flat, show excellent toughness.In addition, all samples all have excellent change plating performance in table.
Table 1
Embodiment 7~11
Raw material total amount is 10kg, by weight percentage, including following component:
Polycarbonate 85wt%
LDS additive 6wt%
Toughener 5wt%
Inorganic nano-particle 3wt%
Other additive 1wt%
Polycarbonate is the polycarbonate containing structure of bisphenol A in the present embodiment, including two kinds: a kind of polycarbonate exists
300 DEG C, the MFR of 1.2Kg be 8g/min, weight average molecular weight 24000, mass fraction used is 40wt%；A kind of polycarbonate
It is 18g/min in the MFR of 300 DEG C, 1.2Kg, weight average molecular weight 19500, mass fraction used is 45wt%.
LDS additive includes two kinds: LDS-1 (alkali formula cupric phosphate) and LDS-3 (zinc stannate), total raw material in the present embodiment
In, the weight percent amount of the two is 6wt%.
Toughener (IM) is methyl methacrylate-butadiene-styrene terpolymer (model in the present embodiment
DOWEXL-2690)。
It is nano-titanium dioxide less than or equal to 80 nanometers that inorganic nano-particle, which is average grain diameter, in the present embodiment.
Other additives include antioxidant 1010 in the present embodiment, and (three adds for irgasfos 168 and pentaerythritol stearate
Entering amount is respectively 0.2wt%, 0.2wt% and 0.6wt%).
The different ratio of two kinds of LDS additives is illustrated in table 2 to polycarbonate compound thermal stability, mechanical performance
With the influence of plating performance.Wherein the evaluation criteria of thermal stability and plating performance is same as above.
Table 2
| Composition | #7 | #8 | #9 | #10 | #11 |
| PC (wt%) | 85 | 85 | 85 | 85 | 85 |
| IM (wt%) | 5 | 5 | 5 | 5 | 5 |
| LDS-1 (wt%) | 4 | 3 | 2 | 1 | 0 |
| LDS-3 (wt%) | 2 | 3 | 4 | 5 | 6 |
| TiO2 (wt%) | 3 | 3 | 3 | 3 | 3 |
| Additives (wt%) | 1 | 1 | 1 | 1 | 1 |
| MFRshift | 94 | 70 | 30 | 25 | 24 |
| Notch impact strength (J/m) | 413 | 508 | 565 | 581 | 650 |
| Elongation at break (%) | 40 | 58 | 72 | 70 | 63 |
| Heat distortion temperature (DEG C) | 123 | 125 | 123 | 124 | 122 |
| Change plating performance | 10 | 10 | 10 | 9 | 8 |
From table 2 it can be seen that in the case where LDS-3 (zinc stannate) is used alone, the change of composite melt flow rate
Change smaller, it is meant that material has preferable thermal stability, but the change plating performance of sample is not able to satisfy functional need.In cupric LDS
In the case that additive and stanniferous LDS additive are used cooperatively, the variation in MFR of complex systems can be controlled
In lower level, while the notch impact strength of sample and elongation at break are higher, show excellent toughness.It is prior
It is that cupric LDS additive and being used cooperatively for stanniferous LDS additive provide excellent change plating performance, excellent combination property.
Claims (9)
1. a kind of laser direct forming material with good comprehensive performance, which is characterized in that mainly by following weight percent
Component be made:
The laser direct forming additive is by cupric laser direct forming additive and stanniferous laser direct forming additive group
At the mass ratio of cupric laser direct forming additive and stanniferous laser direct forming additive is 2/10~5/10.
2. the laser direct forming material according to claim 1 with good comprehensive performance, which is characterized in that described to contain
Copper laser straight forming additive includes copper and iron spinelle, cupric oxidation magnalium, copper chromium manganese mixed oxides, copper manganese iron mixing oxygen
One or more of compound, alkali formula cupric phosphate；The stanniferous laser direct forming additive include zinc stannate, stannous pyrophosphate,
One or more of phosphoric acid tin, stannic oxide, stannous pyrophosphate, stannous oxide.
3. the laser direct forming material according to claim 1 with good comprehensive performance, which is characterized in that described poly-
Carbonic ester is the polycarbonate containing structure of bisphenol A.
4. the laser direct forming material according to claim 1 with good comprehensive performance, which is characterized in that the increasing
Tough dose of one or two kinds of mixture in ABS, MBS, organosilicon core-shell polymer, SBS, SEBS, EVA, POE.
5. the laser direct forming material according to claim 1 with good comprehensive performance, which is characterized in that the nothing
Machine nanoparticle includes one or more of nano silica, nano aluminium oxide, nanometer calcium carbonate and nano-titanium dioxide.
6. the laser direct forming material according to claim 1 with good comprehensive performance, which is characterized in that it is described its
His additive includes one of heat stabilizer, release agent, antioxidant and plasticizer or a variety of.
7. the laser direct forming material according to claim 1-6 with good comprehensive performance, feature exist
In by being mixed following weight percentage components:
8. the laser direct forming material according to claim 1 or 3 with good comprehensive performance, which is characterized in that institute
The molecular weight for stating polycarbonate is 18000-35000.
9. a kind of side for preparing the described in any item laser direct forming materials with good comprehensive performance of claim 1-8
Method, which is characterized in that according to metering ratio, by polycarbonate, laser direct forming additive, toughener, inorganic nano-particle and
Other additive parts uniformly, are squeezed out melt blending extruding pelletization by extruder, obtain can be used for laser direct forming by premix
Plastic composite materials.
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| CN110283360A (en) * | 2019-06-11 | 2019-09-27 | 无锡赢同新材料科技有限公司 | Microencapsulation method of modifying, product and its application of laser direct forming additive |
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| JP2021155572A (en) * | 2020-03-27 | 2021-10-07 | 三菱エンジニアリングプラスチックス株式会社 | Polyamide resin composition for laser direct structuring, resin molding, method for manufacturing plated resin molding, and method for manufacturing component of portable electronic device having antenna |
| CN111440428B (en) * | 2020-04-10 | 2022-09-20 | 常州百佳年代薄膜科技股份有限公司 | Polycarbonate-based laser marking composite material and preparation method thereof |
| CN112662159B (en) * | 2020-12-19 | 2022-10-14 | 杭州本松新材料技术股份有限公司 | Polycarbonate laser direct forming material with good plating property and degradation resistance, preparation method and product |
| CN114479410B (en) * | 2022-02-16 | 2023-08-04 | 无锡赢同新材料科技有限公司 | Low dielectric loss LDS engineering plastic and preparation method thereof |
| CN116082848A (en) * | 2022-12-30 | 2023-05-09 | 无锡赢同新材料科技有限公司 | Dielectric property-adjustable high-modulus LDS engineering plastic and preparation method thereof |
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