CN105504788A - Injection moulded product of different resins, preparation method and applications thereof - Google Patents
Injection moulded product of different resins, preparation method and applications thereof Download PDFInfo
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- CN105504788A CN105504788A CN201410521914.2A CN201410521914A CN105504788A CN 105504788 A CN105504788 A CN 105504788A CN 201410521914 A CN201410521914 A CN 201410521914A CN 105504788 A CN105504788 A CN 105504788A
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- 229920005989 resin Polymers 0.000 title claims abstract description 64
- 239000011347 resin Substances 0.000 title claims abstract description 64
- 238000002360 preparation method Methods 0.000 title claims abstract description 29
- 238000002347 injection Methods 0.000 title abstract description 6
- 239000007924 injection Substances 0.000 title abstract description 6
- 229920005992 thermoplastic resin Polymers 0.000 claims abstract description 78
- 239000011159 matrix material Substances 0.000 claims abstract description 72
- 239000000203 mixture Substances 0.000 claims abstract description 50
- 238000000034 method Methods 0.000 claims abstract description 22
- 238000001746 injection moulding Methods 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims description 78
- 238000000608 laser ablation Methods 0.000 claims description 55
- 239000003365 glass fiber Substances 0.000 claims description 30
- 238000012545 processing Methods 0.000 claims description 26
- 238000005530 etching Methods 0.000 claims description 23
- 239000004065 semiconductor Substances 0.000 claims description 16
- -1 polybutylene terephthalate Polymers 0.000 claims description 14
- 239000004734 Polyphenylene sulfide Substances 0.000 claims description 11
- 150000001408 amides Chemical class 0.000 claims description 11
- 229920000069 polyphenylene sulfide Polymers 0.000 claims description 11
- 239000004417 polycarbonate Substances 0.000 claims description 10
- 229920000515 polycarbonate Polymers 0.000 claims description 10
- 239000011247 coating layer Substances 0.000 claims description 8
- 239000004743 Polypropylene Substances 0.000 claims description 6
- 229920001707 polybutylene terephthalate Polymers 0.000 claims description 6
- 229920001155 polypropylene Polymers 0.000 claims description 6
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 5
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 5
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims description 3
- 239000004793 Polystyrene Substances 0.000 claims description 3
- 229920002223 polystyrene Polymers 0.000 claims description 3
- 239000002657 fibrous material Substances 0.000 abstract description 7
- 238000010329 laser etching Methods 0.000 abstract 2
- 238000012360 testing method Methods 0.000 description 22
- 230000032683 aging Effects 0.000 description 14
- 230000035939 shock Effects 0.000 description 13
- 238000001149 thermolysis Methods 0.000 description 7
- 239000004033 plastic Substances 0.000 description 5
- 229920003023 plastic Polymers 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000005728 strengthening Methods 0.000 description 4
- 229920006351 engineering plastic Polymers 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000004513 sizing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 101100295884 Aedes aegypti SGPRor7 gene Proteins 0.000 description 1
- 101150041122 Orco gene Proteins 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 230000003666 anti-fingerprint Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007306 functionalization reaction Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000009916 joint effect Effects 0.000 description 1
- 238000013532 laser treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- Injection Moulding Of Plastics Or The Like (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses an injection moulded product of different resins, a preparation method thereof, and an application of the injection moulded product in electronic products. The preparation method comprises the following steps: (1) subjecting the matrix of a composition containing a first thermoplastic resin and a fiber material to laser etching so as to expose at least part of the fiber material on the surface of the matrix; (2) after laser etching, carrying out injection moulding on the surface with exposed fiber material of the matrix by using a composition, which comprises a second thermoplastic resin and/or a fiber material, wherein the first thermoplastic resin and second thermoplastic resin are different. The provided method can tightly bind two resins together, the drawing strength is high, and the strength requirements of electronic products can be met.
Description
Technical field
The present invention relates to injection-molded article of different sorts resin and preparation method thereof, and the injection-molded article of the different sorts resin prepared by the method, and the application of this injection-molded article on electronic product.
Background technology
There is sizing agent bonding the method for different sorts resin-bonded in prior art, double-shot moulding and ultrasonic welding.
Wherein, adopt the complicated efficiency of sizing agent bonding process low, there is tolerance in bonding size, pollutes bad border; And double-shot moulding or ultrasonic welding are due to the restriction of resin material self character, different sorts resin-bonded intensity is low, and junction surface is easy to crack, and the special construction strengthenings such as parcel, buckle must be adopted to engage, make Shooting Technique and ultrasonic technique very complicated, and product to be excellent yield low.
Present mobile phone and electronic product be precision and functionalization day by day, such as require waterproof, anti-fingerprint, high strength shatter-resistant etc., different sorts resin-bonded how is made to be convenient to give full play to different sorts resin function, make product perfect cooperation on structure and function, become a manufacture bottleneck of mobile phone and mobile electronic product.
Therefore, how by different types of resin-bonded and prepare injection-molded article that different sorts resin-bonded prepares integration and to need research and development further together.
Summary of the invention
The object of the invention is to overcome above-mentioned defect of the prior art, and injection-molded article of the different sorts resin providing a kind of bond strength high and preparation method thereof, and the injection-molded article of the different sorts resin to be prepared by the method, and the application of this injection-molded article on electronic product.
To achieve these goals, the invention provides a kind of injection-molded article of different sorts resin, wherein, the coating layer that described injection-molded article comprises matrix and is combined with matrix surface, wherein, described matrix is formed by the composition containing the first thermoplastic resin and filamentary material, described coating layer is formed by the composition containing filamentary material containing the second thermoplastic resin and selectivity, described matrix surface has etching groove, exposed in described etching groove have filamentary material, describedly contain the composition that the second thermoplastic resin and selectivity contain filamentary material and be filled in described etching groove, and described first thermoplastic resin is not identical with described second thermoplastic resin.
Present invention also offers a kind of preparation method of injection-molded article of different sorts resin, the method comprises the following steps:
(1) matrix of the composition containing the first thermoplastic resin and filamentary material is carried out laser ablation, make the filamentary material at least part of surface of this matrix out exposed;
(2) composition containing filamentary material with the second thermoplastic resin and selectivity carries out injection moulding on the surface exposing filamentary material of the matrix after step (1) laser ablation;
Wherein, described first thermoplastic resin is not identical with described second thermoplastic resin.
Present invention also offers a kind of injection-molded article of the different sorts resin prepared by the method.
Present invention also offers the application of this injection-molded article on electronic product.
First the present invention selects the matrix of the composition containing a kind of thermoplastic resin and filamentary material, and wherein, this matrix can by carrying out single injection-molded to obtain by the composition of this thermoplastic resin and filamentary material; Then semiconductor infrared laser line generator is adopted to carry out laser ablation to this matrix, processing mode when adopting semiconductor infrared laser line generator to carry out laser ablation is for intersect in length and breadth, like this at the process zone of laser ablation, resin thermolysis on matrix surface and gasification is made by laser, thus the resin on removal matrix surface, only leave the fibrous material portion as strengthening material; Again the matrix after laser treatment is placed in the composition that mould and another kind of thermoplastic resin and selectivity contain filamentary material and carries out injection moulding, the filamentary material relying on the matrix after laser ablation process to stay is embedded in another kind of thermoplastic resin and selectivity contains in the composition of filamentary material, and two kinds of resin brute forces are engaged.
Other features and advantages of the present invention are described in detail in embodiment part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification sheets, is used from explanation the present invention, but is not construed as limiting the invention with embodiment one below.In the accompanying drawings:
Fig. 1 is the schematic diagram adopting the matrix of semiconductor infrared laser line generator to the composition of the first thermoplastic resin and filamentary material to carry out laser ablation in the present invention;
Fig. 2 be in the present invention in the place that laser ablation is crossed by this matrix surface resin remove schematic diagram;
Fig. 3 is the exposed schematic diagram out of filamentary material in the present invention at least part of surface of the place that laser ablation is crossed by this matrix;
Fig. 4 is the schematic diagram in the present invention, the composition that the matrix after step (1) laser ablation and the second thermoplastic resin and selectivity contain filamentary material being carried out injection moulding;
Fig. 5 is the optical microscope photograph on the surface of the matrix of the composition of the first thermoplastic resin and filamentary material in embodiments of the invention 1;
Fig. 6 is the optical microscope photograph on the surface of matrix in embodiments of the invention 1 after laser ablation;
Fig. 7 is the optical microscope photograph on the surface making the exposed matrix out of filamentary material in embodiments of the invention 1.
Description of reference numerals
1 matrix
2 second thermoplastic resins and selectivity contain the composition of filamentary material
3 filamentary material 4 semiconductor infrared laser line generators
The 5 undressed region of laser, laser processing area 6
Embodiment
Below the specific embodiment of the present invention is described in detail.Should be understood that, embodiment described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
According to the injection-molded article that the invention provides a kind of different sorts resin, wherein, the coating layer that described injection-molded article comprises matrix and is combined with matrix surface, wherein, described matrix is formed by the composition containing the first thermoplastic resin and filamentary material, described coating layer is formed by the composition containing filamentary material containing the second thermoplastic resin and selectivity, described matrix surface has etching groove, exposed in described etching groove have filamentary material, describedly contain the composition that the second thermoplastic resin and selectivity contain filamentary material and be filled in described etching groove, and described first thermoplastic resin is not identical with described second thermoplastic resin.
According to the present invention, the filamentary material exposed in etching groove is embedded in described coating layer.
According to the present invention, the length of the filamentary material exposed in etching groove can be 0.01-0.4mm.
According to the present invention, wherein, the pattern of described etching groove can be cruciform, circle, trilateral, square or rectangle, in the present invention, for improving working (machining) efficiency, is preferably cruciform.
According to the present invention, wherein, in the present invention, the degree of depth of the groove on this matrix surface refers to the degree of depth of the removal when carrying out laser ablation with the described processing mode intersected in length and breadth.In the present invention, the depth H of described etching groove can be 0.03-0.15mm, is preferably 0.05-0.1mm, is more preferably 0.07-0.09mm.
In the present invention, adopt laser ablation to remove the resin on matrix surface, namely in laser processing area, under thermolysis and pneumatolysis, the resin on described matrix surface is removed.
According to the present invention, the pattern of described etching groove is cruciform, and the width L1 of groove in the vertical can be 0.01-0.2mm, preferably, L1 is 0.05-0.15mm, and groove and groove spacing L3 each other can be 0.1-0.5mm in the vertical, preferably, L3 is 0.2-0.35mm; The width L2 of groove is in the horizontal 0.01-0.2mm, and preferably, L2 is 0.05-0.15mm, and groove and groove spacing L4 is each other 0.1-0.5mm in the horizontal, and preferably, L4 is 0.2-0.35mm.In the present invention, the width of the groove that this matrix surface is formed refers in multiple etching process, and the surface of this matrix is formed the size of the maximum diameter of the hole of multiple circle.
According to the present invention, with the gross weight of the composition containing the first thermoplastic resin and filamentary material for benchmark, the content of described first thermoplastic resin can be 20-80 % by weight, and the content of described filamentary material can be 20-80 % by weight; Preferably, with the gross weight of the composition containing the first thermoplastic resin and filamentary material for benchmark, the content of described first thermoplastic resin is 40-50 % by weight, and the content of described filamentary material is 50-60 % by weight; In the present invention, the content of described first thermoplastic resin and described filamentary material controls in above-mentioned scope, can once be injection molded into matrix of the present invention.
According to the present invention, described first thermoplastic resin range of application is more extensive, be not particularly limited, as long as environmentally safe, as long as use semiconductor infrared line laser to remove resin, as long as can be the resin of filamentary material of the present invention strengthening, in the present invention, described first thermoplastic resin can be polyphenylene sulfide (PPS), polybutylene terephthalate (PBT), one or more in polymeric amide (PA) and polycarbonate (PC), preferably, described first thermoplastic resin is polyphenylene sulfide (PPS) and/or polymeric amide (PA).
According to the present invention, to contain the gross weight of the composition of filamentary material for benchmark containing the second thermoplastic resin and selectivity, the content of described second thermoplastic resin can be 40-100 % by weight, and the content of described filamentary material can be 0-60 % by weight; Preferably, to contain the gross weight of the composition of filamentary material for benchmark containing the second thermoplastic resin and selectivity, the content of described second thermoplastic resin is 60-70 % by weight, and the content of described filamentary material is 30-40 % by weight; In the present invention, the content that described second thermoplastic resin and selectivity contain filamentary material controls in above-mentioned scope, can with matrix injection moulding preferably.
According to the present invention, described second thermoplastic resin range of application is more extensive, be not particularly limited, as long as environmentally safe, as long as can be the resin of filamentary material of the present invention strengthening, in the present invention, described second thermoplastic resin can be one or more in polypropylene (PP), urethane (TPU), polystyrene series resin (as ABS, AS), polyphenylene sulfide (PPS), polyethylene terephthalate (PET) resin, polymeric amide (PA) and polycarbonate (PC); Preferably, described second thermoplastic resin is polyethylene terephthalate (PET) resin and/or polycarbonate (PC).
According to the present invention, described filamentary material can be glass fibre.
According to the preparation method of injection-molded article that the invention provides a kind of different sorts resin, the method comprises the following steps:
(1) matrix of the composition containing the first thermoplastic resin and filamentary material is carried out laser ablation, make the filamentary material at least part of surface of this matrix out exposed;
(2) composition containing filamentary material with the second thermoplastic resin and selectivity carries out injection moulding on the surface exposing filamentary material of the matrix after step (1) laser ablation;
Wherein, described first thermoplastic resin is not identical with described second thermoplastic resin.
According to the present invention, present inventor is through a large amount of scientific experiments, find to adopt semiconductor infrared laser line generator to carry out laser ablation can effectively the resin of the matrix surface of the composition of thermoplastic resin and filamentary material be removed, and only leave fibrous material portion (make the filamentary material at least one surface of this matrix out exposed); The machined parameters of this semiconductor infrared laser line generator is not particularly limited, in the present invention, under preferable case, the machined parameters of this semiconductor red outside line is: LASER SPECKLE spacing is 0.01-0.02mm, and electric current is 10-20A, and process velocity is 50-3000mm/s, frequency is 5-15kHz, working power is 10-25 watt, and effective vector step-length is 0.001-0.005mm, and between effective vector step, time delay is 10-20us; And in the present invention, the number of times adopting this semiconductor infrared laser line generator to carry out laser ablation is not particularly limited, can for once to etch, also can be multiple etching continuously, in the present invention, be preferably multiple etching continuously, multiple etching can form the hole of multiple circle on the surface of this matrix, the hole of multiple circle may link together, and therefore, can form groove on the surface of this matrix.
According to the present invention, the processing mode of described laser ablation can for intersect in length and breadth, and the processing pattern obtained after intersecting in length and breadth can be cruciform, circle, trilateral, square or rectangle, in the present invention, for improving working (machining) efficiency, is preferably cruciform.
According to the present invention, described injection moulding is not particularly limited, and corresponding molding proces s parameters known in those skilled in the art can be adopted to carry out injection moulding according to different resins material behavior.
Carry out the preparation method of the injection-molded article of different sorts resin according to one embodiment of the present invention, particularly, the method comprises the following steps:
(1) matrix of the composition of the first thermoplastic resin and filamentary material is carried out laser ablation, as shown in Figure 1, to needing the surface engaged to utilize semiconductor infrared laser line generator 4 to carry out laser ablation after taking out matrix, wherein, 1 is matrix, and 4 is semiconductor infrared laser line generator;
(2) laser ablation is carried out with the processing mode intersected in length and breadth, and processing pattern is cruciform, as shown in Figure 2, laser processing area is 5, and undressed region is 6, in laser processing area 5, after laser ablation, the width of the groove formed after laser ablation is in the vertical L1, and groove and groove spacing is each other L3 in the vertical, the width of the groove formed after laser ablation is in the horizontal L2, and groove and groove spacing is each other L4 in the horizontal;
(3) removed by the resin on this matrix surface in the place that laser ablation is crossed, only leave fibrous material portion, as shown in Figure 3, wherein, 3 is filamentary material;
(4) matrix after laser ablation and the second thermoplastic resin and selectivity are contained the composition injection moulding of filamentary material, two kinds of resin brute forces are engaged, as shown in Figure 4,2 be wherein the composition that the second thermoplastic resin and selectivity contain filamentary material;
Wherein, in this specific embodiment, the first thermoplastic resin is different from the second thermoplastic resin, and filamentary material is glass fibre.
Present invention also offers a kind of injection-molded article of the different sorts resin prepared by the method.
Present invention also offers the application of this injection-molded article on electronic product.
Below will be described the present invention by embodiment.
In the following Examples and Comparative Examples, by the condition that the injection-molded article prepared carries out thermal shock be: in the hot-cool environment of-40 DEG C to 85 DEG C, each injection-molded article (sample) is kept 2 hours in each temperature, circulates 5 cycles, continue to carry out 20 hours.
In the following Examples and Comparative Examples, by the condition that the injection-molded article prepared carries out moisture and hot ageing be: in the moisture and hot ageing environment of 25 DEG C to 55 DEG C, from 25 DEG C, 95%RH starts, each 3 hours of heating, cooling, keeps temperature each 9 hours, totally 6 cycles, 6 day time.
In the following Examples and Comparative Examples, semiconductor infrared laser line generator matrix being carried out to laser ablation is EP-25 semiconductor infrared laser line generator purchased from Dazu Laser Science & Tech Co Ltd, Shenzhen City company model; Opticmicroscope is Imager.A1m purchased from the model of German Carl Zeiss Inc.; The pull strength of sample of the present invention is characterized according to ISO527 standard testing (model purchased from company of Kai Qiangli test apparatus company limited of Shenzhen is WDT2000);
In the following Examples and Comparative Examples, described polyphenylene sulfide is purchased from Qi get engineering plastics company limited; Described polybutylene terephthalate resin is purchased from Qi get engineering plastics company limited; Described pet resin is purchased from Qi get engineering plastics company limited; Described polycarbonate is purchased from Bayer Engineered Plastics; Described polymeric amide is purchased from EMS Engineered Plastics; Described polypropylene is purchased from husky Bick Engineered Plastics; Described urethane is purchased from Bayer Engineered Plastics; Described polystyrene series resin is purchased from Bayer Engineered Plastics; Described glass fibre is purchased from Orco glass fibre factory.
Embodiment 1
The present embodiment is used for injection-molded article that different sorts resin of the present invention is described and preparation method thereof.
(1) composition of polymeric amide (PA) thermoplastic resin of 50 % by weight and the glass fibre of 50 % by weight is carried out the matrix that injection moulding obtains the composition of thermoplastic resin and glass fibre, as shown in Figure 5, to needing the surface engaged to utilize semiconductor infrared laser line generator to carry out laser ablation after this matrix is taken out, wherein, the machined parameters of this semiconductor red outside line is: hole or separation are 0.017mm, electric current is 14A, process velocity is 700mm/s, frequency is 10kHz, working power is 25 watts, effective vector step-length is 0.003mm, between effective vector step, time delay is 15us,
(2) laser ablation is carried out with the processing mode intersected in length and breadth, and processing pattern is cruciform, as shown in Figure 6, in laser processing area, laser Continuous maching 5 times, after laser ablation, the width L1 of the groove formed after laser ablation is in the vertical 0.1mm, groove and groove spacing L3 is each other 0.25mm in the vertical, and the width L2 of the groove formed after laser ablation is in the horizontal 0.1mm, and groove and groove spacing L4 is each other 0.25mm in the horizontal;
(3) depth H removed by the resin on described matrix surface under thermolysis and pneumatolysis is 0.08mm, and only leave exposed glass fiber material part, wherein, the length of exposed glass fiber material is 0.1-0.2mm, as shown in Figure 7;
(4) by the matrix after laser ablation and the injection moulding again of polycarbonate (PC) thermoplastic resin, wherein, injection temperature is 300 DEG C, injection pressure is 2100bar, dwell pressure is 1200bar, and the dwell time is 2s, and two kinds of resin brute forces are engaged; Result obtains the matrix of the composition of polymeric amide (PA) and glass fibre and the injection-molded article S1 of polycarbonate (PC).
Pull strength test is carried out to this injection-molded article S1; And carry out pull strength test again after this injection-molded article S1 is carried out thermal shock and moisture and hot ageing respectively, result is as shown in table 1.
Embodiment 2
The present embodiment is used for injection-molded article that different sorts resin of the present invention is described and preparation method thereof.
Injection-molded article S2 is prepared according to the preparation method identical with embodiment 1, institute's difference is: carry out laser ablation with the processing mode intersected in length and breadth, and processing pattern is cruciform, in laser processing area, laser Continuous maching 5 times, after laser ablation, the width L1 of the groove formed after laser ablation is in the vertical 0.05mm, groove and groove spacing L3 is each other 0.2mm in the vertical, the width L2 of the groove formed after laser ablation is in the horizontal 0.05mm, and groove and groove spacing L4 is each other 0.2mm in the horizontal; And
(3) depth H removed by the resin on described matrix surface under thermolysis and pneumatolysis is 0.05mm, and only leave exposed glass fiber material part, wherein, the length of exposed glass fiber material is 0.05-0.1mm;
Pull strength test is carried out to this injection-molded article S2; And carry out pull strength test again after this injection-molded article S2 is carried out thermal shock and moisture and hot ageing respectively, result is as shown in table 1.
Embodiment 3
The present embodiment is used for injection-molded article that different sorts resin of the present invention is described and preparation method thereof.
Injection-molded article S3 is prepared according to the preparation method identical with embodiment 1, institute's difference is: carry out laser ablation with the processing mode intersected in length and breadth, and processing pattern is cruciform, in laser processing area, laser Continuous maching 5 times, after laser ablation, the width L1 of the groove formed after laser ablation is in the vertical 0.15mm, groove and groove spacing L3 is each other 0.35mm in the vertical, the width L2 of the groove formed after laser ablation is in the horizontal 0.15mm, and groove and groove spacing L4 is each other 0.35mm in the horizontal; And
(3) depth H removed by the resin on described matrix surface under thermolysis and pneumatolysis is 0.1mm, and only leave exposed glass fiber material part, wherein, the length of exposed glass fiber material is 0.15-0.3mm;
Pull strength test is carried out to this injection-molded article S3; And carry out pull strength test again after this injection-molded article S3 is carried out thermal shock and moisture and hot ageing respectively, result is as shown in table 1.
Embodiment 4
The present embodiment is used for injection-molded article that different sorts resin of the present invention is described and preparation method thereof.
Injection-molded article S4 is prepared according to the preparation method identical with embodiment 1, institute's difference is: carry out laser ablation with the processing mode intersected in length and breadth, and processing pattern is cruciform, in laser processing area, laser Continuous maching 5 times, after laser ablation, the width L1 of the groove formed after laser ablation is in the vertical 0.01mm, groove and groove spacing L3 is each other 0.1mm in the vertical, the width L2 of the groove formed after laser ablation is in the horizontal 0.2mm, and groove and groove spacing L4 is each other 0.5mm in the horizontal; And
(3) depth H removed by the resin on described matrix surface under thermolysis and pneumatolysis is 0.03mm, and only leave exposed glass fiber material part, wherein, the length of exposed glass fiber material is 0.01-0.3mm;
Pull strength test is carried out to this injection-molded article S4; And carry out pull strength test again after this injection-molded article S4 is carried out thermal shock and moisture and hot ageing respectively, result is as shown in table 1.
Embodiment 5
The present embodiment is used for injection-molded article that different sorts resin of the present invention is described and preparation method thereof.
Injection-molded article S5 is prepared according to the preparation method identical with embodiment 1, institute's difference is: carry out laser ablation with the processing mode intersected in length and breadth, and processing pattern is cruciform, in laser processing area, laser Continuous maching 5 times, after laser ablation, the width L1 of the groove formed after laser ablation is in the vertical 0.2mm, groove and groove spacing L3 is each other 0.5mm in the vertical, the width L2 of the groove formed after laser ablation is in the horizontal 0.01mm, and groove and groove spacing L4 is each other 0.5mm in the horizontal; And
(3) depth H removed by the resin on described matrix surface under thermolysis and pneumatolysis is 0.15mm, and only leave exposed glass fiber material part, wherein, the length of exposed glass fiber material is 0.01-0.3mm;
Pull strength test is carried out to this injection-molded article S5; And carry out pull strength test again after this injection-molded article S5 is carried out thermal shock and moisture and hot ageing respectively, result is as shown in table 1.
Embodiment 6
The present embodiment is used for injection-molded article that different sorts resin of the present invention is described and preparation method thereof.
Prepare injection-molded article S6 according to the preparation method identical with embodiment 1, institute's difference is: adopt and the composition of glass fibre of the polymeric amide of 40 % by weight (PA) thermoplastic resin and 60 % by weight is carried out the matrix that injection moulding obtains the composition of polyamide thermoplastic resin and glass fibre;
Pull strength test is carried out to this injection-molded article S6; And carry out pull strength test again after this injection-molded article S6 is carried out thermal shock and moisture and hot ageing respectively, result is as shown in table 1.
Embodiment 7
The present embodiment is used for injection-molded article that different sorts resin of the present invention is described and preparation method thereof.
Prepare injection-molded article S7 according to the preparation method identical with embodiment 1, institute's difference is: adopt and the composition of the polyphenylene sulfide thermoplastic resin of 50 % by weight and the glass fibre of 50 % by weight is carried out the matrix that injection moulding obtains the composition of polyphenylene sulfide thermoplastic resin and glass fibre;
Pull strength test is carried out to this injection-molded article S7; And carry out pull strength test again after this injection-molded article S7 is carried out thermal shock and moisture and hot ageing respectively, result is as shown in table 1.
Embodiment 8
The present embodiment is used for injection-molded article that different sorts resin of the present invention is described and preparation method thereof.
Prepare injection-molded article S8 according to the preparation method identical with embodiment 1, institute's difference is: adopt and the composition of the polybutylene terephthalate thermoplastic resin of 40 % by weight and the glass fibre of 60 % by weight is carried out the matrix that injection moulding obtains the composition of polybutylene terephthalate thermoplastic resin and glass fibre;
Pull strength test is carried out to this injection-molded article S8; And carry out pull strength test again after this injection-molded article S8 is carried out thermal shock and moisture and hot ageing respectively, result is as shown in table 1.
Embodiment 9
The present embodiment is used for injection-molded article that different sorts resin of the present invention is described and preparation method thereof.
Injection-molded article S9 is prepared according to the preparation method identical with embodiment 1, institute's difference is: by the composition injection moulding of the matrix after laser ablation and polycarbonate (PC) thermoplastic resin of 70 % by weight and the glass fibre of 30 % by weight, two kinds of resin brute forces are engaged, and result obtains the injection-molded article S9 of the matrix of the composition of polymeric amide (PA) and glass fibre and the composition of polycarbonate (PC) and glass fibre.
Pull strength test is carried out to this injection-molded article S9; And carry out pull strength test again after this injection-molded article S9 is carried out thermal shock and moisture and hot ageing respectively, result is as shown in table 1.
Embodiment 10
The present embodiment is used for injection-molded article that different sorts resin of the present invention is described and preparation method thereof.
Prepare injection-molded article S10 according to the preparation method identical with embodiment 1, institute's difference is:
By the composition injection moulding of the matrix after laser ablation and the polypropylene thermoplastic resin of 60 % by weight and the glass fibre of 40 % by weight, two kinds of resin brute forces are engaged, and result obtains the injection-molded article S10 of the matrix of the composition of polymeric amide (PA) and glass fibre and the composition of polypropylene and glass fibre.
Pull strength test is carried out to this injection-molded article S10; And carry out pull strength test again after this injection-molded article S10 is carried out thermal shock and moisture and hot ageing respectively, result is as shown in table 1.
Table 1
As can be seen from the data of table 1, the pull strength of the injection-molded article S1-S10 of the different sorts resin prepared in embodiment 1-10 is 22-26MPa, after thermal shock, the pull strength (MPa) of the injection-molded article S1-S10 of different sorts resin is 21-24MPa, after moisture and hot ageing, the pull strength (MPa) of the injection-molded article S1-S10 of different sorts resin is 21-25MPa, result shows: the pull strength of the injection-molded article S1-S10 of different sorts resin is high, meet the requirement of strength of electronic product, can be applied on electronic product, and after thermal shock and moisture and hot ageing, the pull strength of the injection-molded article S1-S10 of different sorts resin is without obvious reduction, Joint Properties is excellent.
More than describe the preferred embodiment of the present invention in detail; but the present invention is not limited to the detail in above-mentioned embodiment, within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition, each concrete technical characteristic described in above-mentioned embodiment, in reconcilable situation, can be combined by any suitable mode, in order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible array mode.
In addition, also can carry out arbitrary combination between various different embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (16)
1. the injection-molded article of a different sorts resin, it is characterized in that, the coating layer that described injection-molded article comprises matrix and is combined with matrix surface, wherein, described matrix is formed by the composition containing the first thermoplastic resin and filamentary material, described coating layer is formed by the composition containing filamentary material containing the second thermoplastic resin and selectivity, described matrix surface has etching groove, exposed in described etching groove have filamentary material, describedly contain the composition that the second thermoplastic resin and selectivity contain filamentary material and be filled in described etching groove, and described first thermoplastic resin is not identical with described second thermoplastic resin.
2. injection-molded article according to claim 1, wherein, the filamentary material exposed in etching groove is embedded in described coating layer.
3. injection-molded article according to claim 1 and 2, wherein, the length of the filamentary material exposed in etching groove is 0.01-0.4mm.
4. injection-molded article according to claim 1, wherein, the depth H of described etching groove is 0.03-0.15mm.
5. the injection-molded article according to claim 1 or 4, wherein, the pattern of described etching groove is cruciform, circle, trilateral, square or rectangle.
6. injection-molded article according to claim 5, wherein, the pattern of described etching groove is cruciform, and in the vertical, the width L1 of groove is 0.01-0.2mm, and groove and groove spacing L3 is each other 0.1-0.5mm; In the horizontal, the width L2 of groove is 0.01-0.2mm, and groove and groove spacing L4 is each other 0.1-0.5mm.
7. injection-molded article according to claim 1, wherein, with the gross weight of the composition containing the first thermoplastic resin and filamentary material for benchmark, the content of described first thermoplastic resin is 20-80 % by weight, and the content of described filamentary material is 20-80 % by weight.
8. injection-molded article according to claim 7, wherein, described first thermoplastic resin is one or more in polyphenylene sulfide, polybutylene terephthalate, polymeric amide and polycarbonate.
9. injection-molded article according to claim 1, wherein, to contain the gross weight of the composition of filamentary material for benchmark containing the second thermoplastic resin and selectivity, the content of described second thermoplastic resin is 40-100 % by weight, and the content of described filamentary material is 0-60 % by weight.
10. injection-molded article according to claim 9, wherein, described second thermoplastic resin be polypropylene, urethane, polystyrene series resin, polyphenylene sulfide, polyethylene terephthalate, polymeric amide and polycarbonate in one or more.
11. injection-molded articles according to claim 1,7 or 9, wherein, described filamentary material is glass fibre.
The preparation method of the injection-molded article of the different sorts resin in 12. claim 1-11 described in any one, the method comprises the following steps:
(1) matrix of the composition containing the first thermoplastic resin and filamentary material is carried out laser ablation, make the filamentary material at least part of surface of this matrix out exposed;
(2) composition containing filamentary material with the second thermoplastic resin and selectivity carries out injection moulding on the surface exposing filamentary material of the matrix after step (1) laser ablation;
Wherein, described first thermoplastic resin is not identical with described second thermoplastic resin.
13. methods according to claim 12, wherein, in step (1), adopt semiconductor infrared laser line generator to carry out laser ablation.
14. methods according to claim 12 or 13, wherein, the processing mode of described laser ablation is for intersect in length and breadth.
The injection-molded article of the 15. different sorts resins prepared according to the method in claim 12-14 described in any one.
16. according to the application of injection-molded article on electronic product of the different sorts resin in claim 1-11 or 15 described in any one.
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