CN101549563A - Aromatic panlite formed piece - Google Patents
Aromatic panlite formed piece Download PDFInfo
- Publication number
- CN101549563A CN101549563A CNA2009101292769A CN200910129276A CN101549563A CN 101549563 A CN101549563 A CN 101549563A CN A2009101292769 A CNA2009101292769 A CN A2009101292769A CN 200910129276 A CN200910129276 A CN 200910129276A CN 101549563 A CN101549563 A CN 101549563A
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- molded article
- injection
- junction portion
- wire junction
- principal stress
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- 125000003118 aryl group Chemical group 0.000 title claims abstract description 17
- 239000004419 Panlite Substances 0.000 title abstract description 5
- 230000005540 biological transmission Effects 0.000 claims abstract description 9
- 238000000465 moulding Methods 0.000 claims description 82
- 229920005989 resin Polymers 0.000 claims description 26
- 239000011347 resin Substances 0.000 claims description 26
- 239000004431 polycarbonate resin Substances 0.000 claims description 16
- 229920005668 polycarbonate resin Polymers 0.000 claims description 16
- 230000015572 biosynthetic process Effects 0.000 claims description 11
- 238000002834 transmittance Methods 0.000 claims description 6
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 5
- 238000005259 measurement Methods 0.000 abstract 3
- 238000000034 method Methods 0.000 description 18
- 239000003086 colorant Substances 0.000 description 17
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 description 10
- 239000011521 glass Substances 0.000 description 8
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 8
- 239000003795 chemical substances by application Substances 0.000 description 7
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N dimethylmethane Natural products CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 238000001746 injection moulding Methods 0.000 description 6
- 239000001294 propane Substances 0.000 description 6
- 238000002347 injection Methods 0.000 description 5
- 239000007924 injection Substances 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229940106691 bisphenol a Drugs 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 239000000835 fiber Substances 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Natural products C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000008188 pellet Substances 0.000 description 4
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- -1 cyclic carbonate compound Chemical class 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 239000005357 flat glass Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000012800 visualization Methods 0.000 description 3
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- OKIRBHVFJGXOIS-UHFFFAOYSA-N 1,2-di(propan-2-yl)benzene Chemical group CC(C)C1=CC=CC=C1C(C)C OKIRBHVFJGXOIS-UHFFFAOYSA-N 0.000 description 2
- ZFFMLCVRJBZUDZ-UHFFFAOYSA-N 2,3-dimethylbutane Chemical compound CC(C)C(C)C ZFFMLCVRJBZUDZ-UHFFFAOYSA-N 0.000 description 2
- ZBMWIKZBITYTCF-UHFFFAOYSA-N 4-[2,3-di(propan-2-yl)phenyl]phenol Chemical compound CC(C)C1=CC=CC(C=2C=CC(O)=CC=2)=C1C(C)C ZBMWIKZBITYTCF-UHFFFAOYSA-N 0.000 description 2
- 125000004203 4-hydroxyphenyl group Chemical group [H]OC1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 2
- CYYZDBDROVLTJU-UHFFFAOYSA-N 4-n-Butylphenol Chemical compound CCCCC1=CC=C(O)C=C1 CYYZDBDROVLTJU-UHFFFAOYSA-N 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 2
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- 239000000654 additive Substances 0.000 description 2
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- VCCBEIPGXKNHFW-UHFFFAOYSA-N biphenyl-4,4'-diol Chemical group C1=CC(O)=CC=C1C1=CC=C(O)C=C1 VCCBEIPGXKNHFW-UHFFFAOYSA-N 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
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- 239000002243 precursor Substances 0.000 description 2
- GHMLBKRAJCXXBS-UHFFFAOYSA-N resorcinol Chemical compound OC1=CC=CC(O)=C1 GHMLBKRAJCXXBS-UHFFFAOYSA-N 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- ODNRTOSCFYDTKF-UHFFFAOYSA-N 1,3,5-Trimethyl-cyclohexan Natural products CC1CC(C)CC(C)C1 ODNRTOSCFYDTKF-UHFFFAOYSA-N 0.000 description 1
- LQWSBXWILISUST-UHFFFAOYSA-N 1,3,5-trimethylcyclohexane Chemical compound CC1[CH]C(C)CC(C)C1 LQWSBXWILISUST-UHFFFAOYSA-N 0.000 description 1
- 150000005208 1,4-dihydroxybenzenes Chemical class 0.000 description 1
- RXNYJUSEXLAVNQ-UHFFFAOYSA-N 4,4'-Dihydroxybenzophenone Chemical compound C1=CC(O)=CC=C1C(=O)C1=CC=C(O)C=C1 RXNYJUSEXLAVNQ-UHFFFAOYSA-N 0.000 description 1
- VPWNQTHUCYMVMZ-UHFFFAOYSA-N 4,4'-sulfonyldiphenol Chemical compound C1=CC(O)=CC=C1S(=O)(=O)C1=CC=C(O)C=C1 VPWNQTHUCYMVMZ-UHFFFAOYSA-N 0.000 description 1
- VWGKEVWFBOUAND-UHFFFAOYSA-N 4,4'-thiodiphenol Chemical compound C1=CC(O)=CC=C1SC1=CC=C(O)C=C1 VWGKEVWFBOUAND-UHFFFAOYSA-N 0.000 description 1
- NZGQHKSLKRFZFL-UHFFFAOYSA-N 4-(4-hydroxyphenoxy)phenol Chemical compound C1=CC(O)=CC=C1OC1=CC=C(O)C=C1 NZGQHKSLKRFZFL-UHFFFAOYSA-N 0.000 description 1
- RQCACQIALULDSK-UHFFFAOYSA-N 4-(4-hydroxyphenyl)sulfinylphenol Chemical compound C1=CC(O)=CC=C1S(=O)C1=CC=C(O)C=C1 RQCACQIALULDSK-UHFFFAOYSA-N 0.000 description 1
- GIXNHONPKYUROG-UHFFFAOYSA-N 4-(9h-fluoren-1-yl)phenol Chemical class C1=CC(O)=CC=C1C1=CC=CC2=C1CC1=CC=CC=C12 GIXNHONPKYUROG-UHFFFAOYSA-N 0.000 description 1
- KLSLBUSXWBJMEC-UHFFFAOYSA-N 4-Propylphenol Chemical compound CCCC1=CC=C(O)C=C1 KLSLBUSXWBJMEC-UHFFFAOYSA-N 0.000 description 1
- HXDOZKJGKXYMEW-UHFFFAOYSA-N 4-ethylphenol Chemical compound CCC1=CC=C(O)C=C1 HXDOZKJGKXYMEW-UHFFFAOYSA-N 0.000 description 1
- ZNPSUQQXTRRSBM-UHFFFAOYSA-N 4-n-Pentylphenol Chemical class CCCCCC1=CC=C(O)C=C1 ZNPSUQQXTRRSBM-UHFFFAOYSA-N 0.000 description 1
- 229930185605 Bisphenol Natural products 0.000 description 1
- 239000004604 Blowing Agent Substances 0.000 description 1
- XDTMQSROBMDMFD-UHFFFAOYSA-N Cyclohexane Chemical compound C1CCCCC1 XDTMQSROBMDMFD-UHFFFAOYSA-N 0.000 description 1
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical class CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 229920000914 Metallic fiber Polymers 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- YGYAWVDWMABLBF-UHFFFAOYSA-N Phosgene Chemical compound ClC(Cl)=O YGYAWVDWMABLBF-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 239000002519 antifouling agent Substances 0.000 description 1
- 239000003963 antioxidant agent Substances 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- ROORDVPLFPIABK-UHFFFAOYSA-N diphenyl carbonate Chemical compound C=1C=CC=CC=1OC(=O)OC1=CC=CC=C1 ROORDVPLFPIABK-UHFFFAOYSA-N 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 239000007850 fluorescent dye Substances 0.000 description 1
- 239000006081 fluorescent whitening agent Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 230000002650 habitual effect Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 239000012760 heat stabilizer Substances 0.000 description 1
- 125000004464 hydroxyphenyl group Chemical group 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000004611 light stabiliser Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000004579 marble Substances 0.000 description 1
- 239000010445 mica Substances 0.000 description 1
- 229910052618 mica group Inorganic materials 0.000 description 1
- 239000002667 nucleating agent Substances 0.000 description 1
- IWDCLRJOBJJRNH-UHFFFAOYSA-N p-cresol Chemical compound CC1=CC=C(O)C=C1 IWDCLRJOBJJRNH-UHFFFAOYSA-N 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 238000007146 photocatalysis Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920001230 polyarylate Polymers 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
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- 238000007151 ring opening polymerisation reaction Methods 0.000 description 1
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- 239000000057 synthetic resin Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
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- 239000004408 titanium dioxide Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000005809 transesterification reaction Methods 0.000 description 1
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- Injection Moulding Of Plastics Or The Like (AREA)
- Manufacture Of Macromolecular Shaped Articles (AREA)
Abstract
The invention provides an aromatic panlite formed piece, wherein an iridescent linear confluence part can not be observed under sunlight and indoor fluorescent lamp, characterized in that: the linear confluence part can be observed by clamping the formed piece between the two polaroids and irradiated by the transmitted light and a virtual reference line is set to be orthogonal with the linear confluence part and the intersection point of the linear confluence part and the virtual reference line is used as the center and the double-refraction of the transmission direction is measured in the measurement range of 5mm and 300mm and the principal stress of each measurement point obtained by the Brewster principle is marked as S(i)(i=1,2,3... 61), furthermore the absolute value of the principal stress gradient [|S(i)-S(i+1)|/5] obtained by dividing the difference between the principal stress S(i) and principal stress S(i+1) by the measurement range is marked as G(i)(i=1,2,3...,59), satisfying the following formula (1). G(i)+G(i+1)+G(i+2)(i=1,2,3...,59)<0.40(1).
Description
Technical field
The present invention relates to the injection-molded article that forms by aromatic polycarbonate resin.Specifically, relate under sunshine, indoor fluorescent lamp, can not observe the injection-molded article of the wire junction portion of iridescent colors on the surface of moulding product.
Background technology
In recent years, the moulding product that formed by polycarbonate resin are as using with the front panel purposes of the panorama skylight of automobile, windowpane (glazing) member that the back door vehicle window is representative, LCD TV, plasm TV etc.But in the large-scale moulding product of the junction portion with resin etc., the light of sunshine, indoor fluorescent lamp etc. produce with catoptrical form on moulding product surface interferes, and observes the wire junction portion of iridescent colors.The wire junction portion of iridescent colors results from the directional deformation of molecule of the aromatic polycarbonate resin in the moulding product face, junction portion at this resin, because sunshine, indoor fluorescent lamp reflect, therefore the birefringence that produces light is because the continuous variation of color and observe the wire junction portion of iridescent colors in junction portion.Under sunshine, indoor fluorescent lamp, the wire junction portion to iridescent colors can destroy the outward appearance of goods and become problem on reality be used at the surface observation of these moulding product.In addition, also might on the durability such as long-term rerum natura of goods, have problems, wish to have the moulding product that can not observe the wire junction portion of iridescent colors on the surface of moulding product owing to resulting from the interior a kind of welding of moulding product face, therefore thinking.
About the forming method of the weld bond on moulding product surface in the junction portion of eliminating resin, known various opinions.For example, in the synthetic resin by a plurality of hot runner valve cast gate injections, because molten resin collaborates in mould cavity, therefore the junction at resin partly produces weld bond.In order to eliminate this weld bond, the forming method that the weld bond that adopts so-called cascade (cascade) method of forming to improve moulding product surface takes place is known, promptly, by a plurality of hot runner valve cast gates of programme-control, according to being expelled to the open successively cast gate of time that resin in the mould cavity arrives each cast gate, potting resin (non-patent literature 1) simultaneously.
In addition, when make adopting the injection molding moulding product of 1 cast gate, when the mould that has wall shape, an opening shape etc. in use carries out moulding, because molten resin is separated into a plurality of streams in mould cavity, therefore also can be at the junction portion generation weld bond of resin.In order to eliminate this weld bond, the forming method that improves by heating cooling mould molding, local heat mould molding etc. rapidly is known (patent documentation 1 and 2).But, though the moulding product that adopt these injection moulding methods to obtain are for the effective forming method of weld bond of eliminating moulding product surface, the technology opinion of the wire junction portion of still unexposed relevant described iridescent colors.
(patent documentation 1) spy opens the 2001-207062 communique
(patent documentation 2) spy opens the 2001-269978 communique
(non-patent literature 1) Plastics Technology.Dec.2003P38
Summary of the invention
The present invention finishes in view of above-mentioned actual conditions, and its purpose is to provide the moulding that is formed by aromatic polycarbonate resin product, and these moulding product can not observed the wire junction portion of iridescent colors under sunshine, indoor fluorescent lamp.
The inventor etc. further investigate in order to realize this purpose, it found that, observe in the moulding product of wire junction portion being clamped in 2 polarizers by the moulding product that will form and shining transmitted light by aromatic polycarbonate resin, near the variation ratio of the principal stress this wire junction portion is can not observe the moulding product of the wire junction portion of iridescent colors under sunshine, indoor fluorescent lamp at the moulding product of particular range, thereby has finished the present invention.
According to the present invention, (1) injection-molded article is provided, it is characterized in that, form by aromatic polycarbonate resin, by being clipped in these moulding product in 2 polarizers and shining transmitted light, can observe wire junction portion, along by the imaginary datum line of setting with the mode of this wire junction portion quadrature, intersection point with wire junction portion and imaginary datum line is the center, measure the birefringence of transmission direction in the 300mm scope with measuring interval 5mm, the principal stress of each measuring point that will obtain according to the Brewster rule based on the birefringence of this transmission direction is designated as S (i) (i=1,2,3...., 61), and then absolute value that will be by using the principal stress gradient that obtains divided by measuring interval (5mm) with the difference of the principal stress S (i+1) of adjacency [| S (i)-S (i+1) |/5] when being designated as G (i), satisfy following formula (1):
G(i)+G(i+1)+G(i+2)(i＝1、2、3....、59)＜0.40 (1)。
One of preferred version of the present invention relates to the injection-molded article of (2) above-mentioned formation (1), wherein, above-mentioned wire junction portion flows into wire junction portion that molten resin in the molding spaces can fashionable formation and/or is separated into a plurality of streams and flows into the wire junction portion that molten resin in the molding space can fashionable formation being arranged at the wall of mould, peristome from being arranged on a plurality of cast gates on the mould.
One of preferred version of the present invention relates to (3) above-mentioned formation (1) or (2) described injection-molded article, and wherein, injection-molded article is a transparent component.
One of preferred version of the present invention relates to each described injection-molded article of (4) above-mentioned formation (1)～(3), and wherein, injection-molded article is a vehicle windowpane member.
One of preferred version of the present invention relates to each described injection-molded article of (5) above-mentioned formation (1)～(4), and wherein, total light transmittance of measuring by JIS K7361-1 is more than 25%.
One of preferred version of the present invention relates to each described injection-molded article of (6) above-mentioned formation (1)～(5), and wherein, the mobile length from the cast gate to the flow end is 15～300cm, and its maximal projection area is 200～60,000cm
2
One of preferred version of the present invention relates to (7) by the injection-molded article that obtains is removed in each described injection-molded article enforcement thermal flexure of above-mentioned formation (1)～(6) or circumference.
One of preferred version of the present invention relates to (8) by each described injection-molded article of above-mentioned formation (1)～(7) is carried out the injection-molded article that finishing obtains.
Description of drawings
Fig. 1 is the polarisation observation platform.
Fig. 2 is the front skeleton diagram of the moulding product made among the embodiment.
Fig. 3 is the front skeleton diagram of the moulding product made among the embodiment.
Fig. 4 is the mensuration distribution of the principal stress S (i) of the moulding product measured among the embodiment.
Fig. 5 is that the mensuration of the principal stress S (i) of the moulding product measured in the comparative example distributes.
Symbol description
10 polarisation observation platforms
11 glass plates
12 polarizers
13 fluorescent lamps
21 gate portions (the 1st fills cast gate)
22 gate portions (the 2nd fills cast gate)
23 by the observed wire junction of polarizer portion
24 imaginary datum lines
25 gate portions
26 peristomes
The specific embodiment
Below embodiment of the present invention are described in detail.
Moulding product of the present invention are injection-molded articles, it is characterized in that, by being clipped in these moulding product in 2 polarizers and shining transmitted light, can observe wire junction portion, along by the imaginary datum line of setting with the mode of this wire junction portion quadrature, intersection point with wire junction portion and imaginary datum line is the center, measure the birefringence of transmission direction in the 300mm scope with measuring interval 5mm, the principal stress of each measuring point that will obtain according to the Brewster rule based on the birefringence of this transmission direction is designated as S (i) (i=1,2,3...., 61), and then absolute value that will be by using the principal stress gradient that obtains divided by measuring interval (5mm) with the difference of the principal stress S (i+1) of adjacency [| S (i)-S (i+1) |/5] is designated as G (i) (i=1,2,3...., 59) time, following formula (1) is set up.
G(i)+G(i+1)+G(i+2)(i＝1、2、3....、59)＜0.40 (1)
G (i) satisfies the injection-molded article of above-mentioned formula (1), can not observe the wire junction portion of iridescent colors under sunshine, indoor fluorescent lamp.Have, G (i)+G (i+1)+G (i+2) is more preferably less than 0.30 preferably less than 0.35 again.
Have, when finding wire junction portion in a plurality of positions in this injection-molded article, it is necessary that G (i) in whole wire junction portions+G (i+1)+G (i+2) (i=1,2,3...., 59) satisfies above-mentioned formula (1) again.
Have again, as the forming method that is used to satisfy above-mentioned formula (1), can the following method of illustration.
Promptly, can enumerate following forming method, in the moulding of the injection-molded article that is formed by aromatic copolycarbonate, making as the resin temperature during the molten resin interflow in the resin junction portion of the position of the wire junction portion that might produce iridescent colors under sunshine, indoor fluorescent lamp is more than 280 ℃.In order to satisfy this condition, the barrel temperature when preferably making moulding is 285 ℃～335 ℃, more preferably 290 ℃～330 ℃.In addition, mold temperature is preferably 80 ℃～125 ℃, more preferably 85 ℃～120 ℃.
Have, above-mentioned principal stress S (i) calculates by the following method again.
(1) wire junction portion determines
Be arranged on polarisation observation platform (10) the shown in Figure 1 glass plate (11) up and down, polarizer (12) pastes the surface of glass plate in the mode that is configured to cross Nicols.Be pasted with polarizer on place moulding product between the lower glass plate, from bottom (13) the irradiation fluorescent lamp of polarisation observation platform, visualization is determined wire junction portion by the rainbow pattern of the moulding product of the light generation that sees through polarizer and moulding product.
(2) setting of imaginary datum line
The imagination datum line is set as follows,, when at interval wire junction portion being measured birefringence with the direction of above-mentioned definite wire junction portion quadrature and with 5mm, birefringence is shown the point of peak is decided to be intersection point that is.The imagination datum line is that the center is determined with the intersection point portion of wire junction portion, is the scope of long 300mm.Have again, when confirming many places wire junction portion is arranged in the injection-molded article, all adopting the imaginary datum line of setting that uses the same method in the wire junction portion.Have, birefringence uses the double refraction detection device SCA-1500 of StrainopticTechnologies corporate system to measure again.
(3) calculating of principal stress
Along the imaginary datum line of long 300mm, measure birefringence with measuring interval 5mm.The measuring point of per 1 sample is totally 61 points.Have, birefringence uses the determinator SCA-1500 of Strainoptic Technologies corporate system to measure again.Secondly, calculate principal stress S (i) according to the Brewster rule shown in the following formula (2).
S(i)＝C×1/t×R(i) (2)
[in the formula, S (i) represents principal stress, and R (i) represents birefringence, and t represents the thickness of working sample, and C represents intrinsic constant=72.]
Moulding product of the present invention are the injection-molded articles that formed by aromatic polycarbonate resin.As the injection moulding method that uses in the present patent application, not only can the common injection moulding of illustration, can also the moulding of illustration inserts, in-mould coating moulding, dual-color forming, injection compression molding, injection extrusion forming, heat insulation mould molding, heating cooling mould molding and ultrahigh speed injection moulding etc. rapidly.In addition, as runner, can use cold runner mode or hot flow path mode, cast gate can be 1 cast gate, a plurality of cast gate, without limits.The size of the moulding product preferably mobile length from the cast gate to the flow end is 15～300cm, and its maximal projection area is 200～60,000cm
2
The shape of moulding product is writing board shape, R shape, wall shape, opening shape etc., is the moulding product that have resin junction portion in moulding product face.
The thickness of moulding product is so long as the thickness range of the general getable moulding product of injection moulding aromatic polycarbonate resin, and then there is no particular restriction, preferred 1～20mm, more preferably 2～18mm.
Total light transmittance of moulding product preferably has the transmitance more than 25%.More preferably more than 30%, further preferred more than 35%.
The aromatic polycarbonate resin that uses among the present invention reacts dihydric phenol and carbonate precursor and obtains.As reaction method, can enumerate for example the solid phase ester-interchange method of interface polycondensation, melt transesterification process, carbonic ester prepolymer and the ring-opening polymerisation method of cyclic carbonate compound etc.
Typical example as use therein dihydric phenol, can enumerate hydroquinones, resorcinol, 4,4 '-dihydroxybiphenyl, two (4-hydroxy phenyl) methane, two { (4-hydroxyls-3, the 5-dimethyl) phenyl } methane, 1, two (4-hydroxy phenyl) ethane of 1-, 1, two (4-the hydroxy phenyl)-1-diphenylphosphino ethanes of 1-, 2, two (4-hydroxy phenyl) propane (common name bisphenol-A) of 2-, 2, two { (4-hydroxy-3-methyl) phenyl } propane of 2-, 2, two { (the 4-hydroxyls-3 of 2-, the 5-dimethyl) phenyl } propane, 2, two { (3-isopropyl-4-hydroxyl) phenyl } propane of 2-, 2, two { (4-hydroxyl-3-phenyl) phenyl } propane of 2-, 2, two (4-hydroxy phenyl) butane of 2-, 2, two (4-the hydroxy phenyl)-3-methybutanes of 2-, 2, two (the 4-hydroxy phenyls)-3 of 2-, the 3-dimethylbutane, 2, two (4-the hydroxy phenyl)-2-methybutanes of 4-, 2, two (4-hydroxy phenyl) pentanes of 2-, 2, two (4-the hydroxy phenyl)-4-methylpentanes of 2-, 1, the 1-bis(4-hydroxyphenyl)cyclohexane, 1, two (4-the hydroxy phenyl)-4-isopropyl cyclohexanes of 1-, 1, two (the 4-hydroxy phenyls)-3 of 1-, 3, the 5-trimethyl-cyclohexane, 9, two (4-hydroxy phenyl) fluorenes of 9-, 9, two { (4-hydroxy-3-methyl) phenyl } fluorenes of 9-, α, α '-two (4-hydroxy phenyl)-adjacent diisopropyl benzene, α, α '-two (4-hydroxy phenyl)-diisopropyl benzene, α, α '-two (4-hydroxy phenyl)-to diisopropyl benzene, 1, two (the 4-hydroxy phenyls)-5 of 3-, the 7-dimethyladamantane, 4,4 '-dihydroxy-diphenyl sulfone, 4,4 '-dihydroxy diphenyl sulfoxide, 4,4 '-dihydroxy diphenylsulfide, 4,4 '-dihydroxy diphenylketone, 4,4 '-dihydroxydiphenyl ether and 4,4 '-dihydroxy diphenyl etc., they can be used alone or two or more kinds mixed.
Wherein, preferably by being selected from bisphenol-A, 2, two { (4-hydroxy-3-methyl) phenyl } propane, 2 of 2-, two (4-hydroxy phenyl) butane, 2 of 2-, two (4-the hydroxy phenyl)-3-methybutanes, 2 of 2-, two (the 4-hydroxy phenyls)-3 of 2-, 3-dimethylbutane, 2, two (4-the hydroxy phenyl)-4-methylpentanes, 1 of 2-, two (the 4-hydroxy phenyls)-3 of 1-, 3,5-trimethyl-cyclohexane and α, homopolymers or copolymer that at least a kind of bis-phenol in α '-two (4-the hydroxy phenyl)-diisopropyl benzene obtains.Especially preferably use the homopolymers and 1 of bisphenol-A, two (the 4-hydroxy phenyls)-3,3 of 1-, the copolymer of 5-trimethyl-cyclohexane and bisphenol-A, 2, two { (4-hydroxy-3-methyl) phenyl } propane or the α of 2-, the copolymer of α '-two (4-hydroxy phenyl)-diisopropyl benzene and bisphenol-A.As carbonate precursor, use carbonyl halide, carbonic ester or haloformate (Ha ロ ホ Le メ one ト) etc., can enumerate the bishaloformate of phosgene, diphenyl carbonate or dihydric phenol etc. particularly.
The molecular weight of aromatic polycarbonate resin preferred 1 * 10
4～1 * 10
5, more preferably 1.5 * 10
4～3 * 10
4, further preferred 1.7 * 10
4～2.7 * 10
4When use had the aromatic polycarbonate resin of this viscosity average molecular weigh, the moulding product that obtain had enough intensity and good melt fluidity, therefore were to be suitable as the moulding product of vehicle with the windowpane member.
In addition, application target according to the moulding product, in the scope of not destroying transmitance, in aromatic polycarbonate resin, can cooperate habitual additive, for example heat stabilizer, releasing agent, infrared absorbent, ultra-violet absorber, antioxidant, light stabilizer, blowing agent, reinforcing agent (talcum, mica, clay, wollastonite, calcium carbonate, glass fibre, bead, glass marble, milled fiber, sheet glass, carbon fiber, carbon plate, the carbon pearl, the carbon milled fiber, sheet metal, metallic fiber, the washing glass fibre, the washing carbon fiber, the washing sheet glass, silica, ceramic particle, ceramic fibre, the aromatic polyamides particle, aramid fibre, the polyarylate fiber, graphite, conductive carbon black, various whiskers etc.), fire retardant (halogen system, phosphate system, slaine system, red phosphorus, silicon system, fluorine system, metal hydrate system etc.), colouring agent (carbon black, pigment such as titanium oxide, dyestuff), light diffusing agent (acrylic compounds crosslinked particle, the silicon crosslinked particle, sheet glass as thin as a wafer, calcium carbonate particle etc.), fluorescent whitening agent, light-storing paint, fluorescent dye, antistatic additive, flow ability modifying agent, crystallization nucleating agent, inorganic and organic antiseptic, photocatalysis is an anti-fouling agent (particulate titanium dioxide, particulate oxide zinc etc.), with the graft rubber is the impact modifying agent of representative, photochromic agent.
Embodiment
With comparative example the present invention is more specifically described by the following examples, but the present invention is not limited to these embodiment.In addition, the absolute value G (i) of the having or not of the wire junction portion of iridescent colors, total light transmittance, principal stress S (i), principal stress gradient measures, calculates according to following method.
(1) having or not of the wire junction portion of iridescent colors: with room fluorescent lights the light on moulding product surface is reflected, the wire junction portion of visualization iridescent colors has or not.
(2) total light transmittance:, adopt Japanese electric look corporate system NDH-300A to measure according to JIS K7361-1.
(3) principal stress S (i): use and adopt following method manufactured samples, measure principal stress S (i) by the following method.
(i) wire junction portion determines
Be arranged on polarisation observation platform (10) the shown in Figure 1 glass plate (11) up and down, polarizer (12) pastes the surface of glass plate in the mode that is configured to cross Nicols.Be pasted with polarizer on place moulding product between the lower glass plate, from bottom (13) the irradiation fluorescent lamp of polarisation observation platform, determine wire junction portion by the moulding product of the light generation that sees through polarizer and moulding product with visualization.
The (ii) setting of imaginary datum line
The imagination datum line is set as follows,, when at interval wire junction portion being measured birefringence with the direction of above-mentioned definite wire junction portion quadrature and with 5mm, birefringence is shown the point of peak is decided to be intersection point that is.Have, imaginary datum line is that the center is determined with the intersection point portion of wire junction portion, is the scope of long 300mm again.Have, birefringence uses the double refraction detection device SCA-1500 of Strainoptic Technologies corporate system to measure again.Have again, all in embodiment, the comparative example, only observe wire junction portion at 1 place.
The (iii) calculating of principal stress
Use the double refraction detection device SCA-1500 of Strainoptic Technologies corporate system, along the imaginary datum line of long 300mm, with the birefringence (measuring point of per 1 sample is totally 61 points) of measuring interval 5mm mensuration.Secondly, calculate principal stress S (i) according to the Brewster rule shown in the following formula (2).
S(i)＝C×1/t×R(i) (2)
[in the formula, S (i) represents principal stress, and R (i) represents birefringence, and t represents the thickness of working sample, and C represents intrinsic constant=72.]
(4) the absolute value G (i) of principal stress gradient: the principal stress S (i) that obtains is inserted following formula and calculate.
G(i)＝[|S(i)-S(i+1)|/5]
(embodiment 1)
Down will (Supreme Being people changes into corporate system: PANLITE L-1250Z (trade name)) dry 5 hours as the polycarbonate resin pellet of resin material at 110 ℃.Use possess the injectable extrusion forming of 4 parallel controlling organizations large-scale make-up machine (name mechanism do made: MDIP2100, maximum clamping force 33,540kN) this resin material is injected extrusion forming, make thick 4mm shown in Figure 2, long by 1,200mm, wide by 1, the large-scale moulding product of 000mm.In this make-up machine, by pressurized delivered dried pellet is supplied to the make-up machine supply port, be used for moulding.Runner has used the hot flow path (diameter 8mm φ) of the valve gate type of HOTSYS corporate system.
Condition of molding is 310 ℃ of barrel temperatures, 280 ℃ of hot flow path design temperatures, mold temperature is 110 ℃ of movable sides, 110 ℃ of fixation side, compression travel 4.0mm, the translational speed 10mm/ second from middle matched moulds state to final matched moulds state mould, and the dwell time be 150 seconds.The filling of molten resin adopts the following cascade method of forming to carry out: from the cast gate start injection of Fig. 2 (21), and after molten resin arrives the cast gate of (22), the valve gate of open (22).Mould is compressed in filling just will finish preceding beginning, and overlapping is 0.5 second.Behind the end-of-fill immediately the valve-off cast gate and form molten resin can be from the condition of cast gate adverse current to barrel.Pressure during compression section is 17.2MPa, and the pressure during the pressurize operation keeps with half pressure of this pressure.The moveable die die joint does not contact with the fixed mould die joint at final progressive position.Have again, in this moulding,, remain the tan θ that represents tilt quantity and torsional capacity about below 0.000025 by these 4 parallel controlling organizations.
The moulding product that obtain are taken out, after fully cooling off leaving standstill 24 hours under the condition of 23 ℃ of temperature, relative humidity 50%, estimate, show the result in table 1 according to above-mentioned assessment item.
Embodiment 2
Making condition of molding is 310 ℃ of barrel temperatures, 280 ℃ of hot flow path design temperatures, and mold temperature is that 90 ℃, fixation side are 90 ℃ in movable side, and compression travel is 2.0mm, all carries out moulding in addition similarly to Example 1.The moulding product that obtain are estimated, shown the result in table 1.
Embodiment 3
Adopt injection simultaneously to carry out the filling of molten resin, all carry out moulding in addition similarly to Example 1.The moulding product that obtain are estimated, shown the result in table 1.
Embodiment 4
(Supreme Being people is changed into corporate system: PANLITE L-1250Z (trade name) is colored as grey with colouring agent to use polycarbonate resin pellet, total light transmittance is 35% when making 4mm thick) as resin material, all carry out moulding in addition similarly to Example 1.The moulding product that obtain are estimated, shown the result in table 1.
Embodiment 5
The moulding product that obtain are thick 10mm shown in Figure 3, long by 1, the large-scale moulding product of 000mm, wide 900mm with opening shape, and with 1 cast gate injecting molten resin, the dwell time is 540 seconds, all carries out moulding in addition similarly to Example 1.The moulding product that obtain are estimated, shown the result in table 1.
Comparative example 1
Making condition of molding is 270 ℃ of barrel temperatures, 280 ℃ of hot flow path design temperatures, and mold temperature is that 75 ℃, fixation side are 75 ℃ in movable side, and compression travel is 2.0mm, all carries out moulding in addition similarly to Example 1.The moulding product that obtain are estimated, shown the result in table 1.In this condition of molding, the temperature at molten resin interflow is low in the wire junction portion, and it is big that the variation ratio of principal stress becomes, and therefore makes light at the surperficial reflex time of moulding product with room fluorescent lights, observed the wire junction portion of iridescent colors.
Table 1
As shown in Table 1, along imaginary datum line, measure the birefringence of transmission direction in the 300mm scope with measuring interval 5mm, the principal stress of each measuring point that will obtain according to the Brewster rule based on the birefringence of this transmission direction is designated as S (i) (i=1,2,3...., 61), and then absolute value that will be by using the principal stress gradient that obtains divided by measuring interval (5mm) with the difference of the principal stress S (i+1) of adjacency [| S (i)-S (i+1) |/5] when being designated as G (i), satisfy G (i)+G (i+1)+G (i+2) (i=1,2,3...., 59) moulding product＜0.40 are at sunshine, can not observe the wire junction portion of iridescent colors under the fluorescent lamp.
The moulding product that form by aromatic polycarbonate resin of the present invention, under sunshine, indoor fluorescent lamp, can not observe the wire junction portion of iridescent colors, therefore the transparent cribbage-board that is suitable as in the game machines such as front panel purposes, pellet shot from a slingshot of panorama skylight with automobile, windowpane member that the back door vehicle window is representative, LCD TV, plasm TV etc. uses, and the industrialness effect is very big.
Claims (8)
1. injection-molded article, it is characterized in that, form by aromatic polycarbonate resin, by being clipped in these moulding product in 2 polarizers and shining transmitted light, can observe wire junction portion, along by the imaginary datum line of setting with the mode of this wire junction portion quadrature, intersection point with wire junction portion and imaginary datum line is the center, measure the birefringence of transmission direction in the 300mm scope with measuring interval 5mm, the principal stress of each measuring point that will obtain according to the Brewster rule based on the birefringence of this transmission direction is designated as S (i), and then will be by using the absolute value of the principal stress gradient that obtains divided by measuring interval 5mm with the difference of the principal stress S (i+1) of adjacency | S (i)-S (i+1) |/5 when being designated as G (i), satisfies following formula (1):
G(i)+G(i+1)+G(i+2)＜0.40 (1)，
In the formula (1), i=1,2,3...., 59,
Among the S (i), i=1,2,3...., 61,
Among the G (i), i=1,2,3...., 59.
2. injection-molded article according to claim 1, wherein, described wire junction portion flows into wire junction portion that molten resin in the molding spaces can fashionable formation and/or is separated into a plurality of streams and flows into the wire junction portion that molten resin in the molding space can fashionable formation being arranged at the wall of mould, peristome from a plurality of cast gates that are arranged at mould.
3. injection-molded article according to claim 1 and 2, wherein, injection-molded article is a transparent component.
4. according to each described injection-molded article in the claim 1～3, wherein, injection-molded article is a vehicle windowpane member.
5. according to each described injection-molded article in the claim 1～4, wherein, total light transmittance of measuring by JISK7361-1 is more than 25%.
6. according to each described injection-molded article in the claim 1～5, wherein, the mobile length from the cast gate to the flow end is 15～300cm, and its maximal projection area is 200～60,000cm
2
7. an injection-molded article obtains by each described injection-molded article enforcement thermal flexure or circumference in the claim 1～6 are removed.
8. an injection-molded article obtains by each described injection-molded article in the claim 1～7 is carried out finishing.
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| JP2008-098255 | 2008-04-04 | ||
| JP2008098255A JP5273774B2 (en) | 2008-04-04 | 2008-04-04 | Aromatic polycarbonate resin injection molded products |
| JP2008098255 | 2008-04-04 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6477511A (en) * | 1977-10-31 | 1989-03-23 | Discovision Ass | Injection molding equipment for optical disk |
| DE29623540U1 (en) * | 1995-05-29 | 1998-09-24 | Hoechst Research & Technology Deutschland GmbH & Co. KG, 65929 Frankfurt | Amorphous, transparent plate made of a crystallizable thermoplastic |
| CN1339353A (en) * | 2000-08-03 | 2002-03-13 | 佳能株式会社 | Resin molded prism and its mold |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002128909A (en) * | 2000-10-25 | 2002-05-09 | Teijin Chem Ltd | Window product made of resin |
| JP4005408B2 (en) * | 2002-05-08 | 2007-11-07 | 帝人化成株式会社 | Polycarbonate resin composition and molded product thereof |
| JP4017951B2 (en) * | 2002-09-27 | 2007-12-05 | 帝人化成株式会社 | Antistatic polycarbonate resin composition |
| JP4351468B2 (en) * | 2003-05-12 | 2009-10-28 | 帝人化成株式会社 | Resin molded products for vehicles |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6477511A (en) * | 1977-10-31 | 1989-03-23 | Discovision Ass | Injection molding equipment for optical disk |
| DE29623540U1 (en) * | 1995-05-29 | 1998-09-24 | Hoechst Research & Technology Deutschland GmbH & Co. KG, 65929 Frankfurt | Amorphous, transparent plate made of a crystallizable thermoplastic |
| CN1339353A (en) * | 2000-08-03 | 2002-03-13 | 佳能株式会社 | Resin molded prism and its mold |
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