CN107081865A - A kind of preparation method of LED acrylics luminescent characters - Google Patents
A kind of preparation method of LED acrylics luminescent characters Download PDFInfo
- Publication number
- CN107081865A CN107081865A CN201710334872.5A CN201710334872A CN107081865A CN 107081865 A CN107081865 A CN 107081865A CN 201710334872 A CN201710334872 A CN 201710334872A CN 107081865 A CN107081865 A CN 107081865A
- Authority
- CN
- China
- Prior art keywords
- led
- luminescent characters
- acrylics
- word shell
- pmma
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229920003229 poly(methyl methacrylate) Polymers 0.000 title claims abstract description 59
- 229920006397 acrylic thermoplastic Polymers 0.000 title claims abstract description 23
- ISXSCDLOGDJUNJ-UHFFFAOYSA-N tert-butyl prop-2-enoate Chemical compound CC(C)(C)OC(=O)C=C ISXSCDLOGDJUNJ-UHFFFAOYSA-N 0.000 title claims abstract description 23
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- 239000002002 slurry Substances 0.000 claims abstract description 40
- 239000004926 polymethyl methacrylate Substances 0.000 claims abstract description 34
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 32
- 238000000034 method Methods 0.000 claims abstract description 23
- 238000010438 heat treatment Methods 0.000 claims abstract description 21
- 238000001816 cooling Methods 0.000 claims abstract description 19
- 229920006305 unsaturated polyester Polymers 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000001914 filtration Methods 0.000 claims abstract description 7
- 239000008267 milk Substances 0.000 claims abstract description 7
- 210000004080 milk Anatomy 0.000 claims abstract description 7
- 235000013336 milk Nutrition 0.000 claims abstract description 7
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 claims description 14
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 claims description 12
- 238000002156 mixing Methods 0.000 claims description 10
- 239000005336 safety glass Substances 0.000 claims description 10
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 9
- 238000005507 spraying Methods 0.000 claims description 9
- 238000006116 polymerization reaction Methods 0.000 claims description 8
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- SVTBMSDMJJWYQN-UHFFFAOYSA-N 2-methylpentane-2,4-diol Chemical compound CC(O)CC(C)(C)O SVTBMSDMJJWYQN-UHFFFAOYSA-N 0.000 claims description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- OMPJBNCRMGITSC-UHFFFAOYSA-N Benzoylperoxide Chemical class C=1C=CC=CC=1C(=O)OOC(=O)C1=CC=CC=C1 OMPJBNCRMGITSC-UHFFFAOYSA-N 0.000 claims description 6
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 claims description 6
- 235000019400 benzoyl peroxide Nutrition 0.000 claims description 6
- 238000007872 degassing Methods 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 6
- 239000000178 monomer Substances 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- -1 methyl methacrylates Methyl esters Chemical class 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 4
- 239000002253 acid Substances 0.000 claims description 3
- 235000011037 adipic acid Nutrition 0.000 claims description 3
- 239000001361 adipic acid Substances 0.000 claims description 3
- 238000005452 bending Methods 0.000 claims description 3
- JGFBRKRYDCGYKD-UHFFFAOYSA-N dibutyl(oxo)tin Chemical compound CCCC[Sn](=O)CCCC JGFBRKRYDCGYKD-UHFFFAOYSA-N 0.000 claims description 3
- 229940051250 hexylene glycol Drugs 0.000 claims description 3
- 230000010354 integration Effects 0.000 claims description 3
- QQVIHTHCMHWDBS-UHFFFAOYSA-N isophthalic acid Chemical compound OC(=O)C1=CC=CC(C(O)=O)=C1 QQVIHTHCMHWDBS-UHFFFAOYSA-N 0.000 claims description 3
- 238000006068 polycondensation reaction Methods 0.000 claims description 3
- 238000007639 printing Methods 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 230000002787 reinforcement Effects 0.000 claims description 3
- VDMLVOIDGSOUTA-UHFFFAOYSA-N 2-(4-methylanilino)ethane-1,1-diol Chemical class CC1=CC=C(NCC(O)O)C=C1 VDMLVOIDGSOUTA-UHFFFAOYSA-N 0.000 claims description 2
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 150000001335 aliphatic alkanes Chemical class 0.000 claims 1
- 150000002148 esters Chemical class 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000000463 material Substances 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- CWRKVLYZMSXVSI-UHFFFAOYSA-N 2-ethyl-n,n-dihydroxy-4-methylaniline Chemical class CCC1=CC(C)=CC=C1N(O)O CWRKVLYZMSXVSI-UHFFFAOYSA-N 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- BAPJBEWLBFYGME-UHFFFAOYSA-N Methyl acrylate Chemical compound COC(=O)C=C BAPJBEWLBFYGME-UHFFFAOYSA-N 0.000 description 2
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Natural products CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 2
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 150000004702 methyl esters Chemical class 0.000 description 2
- 238000005496 tempering Methods 0.000 description 2
- 239000003086 colorant Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/003—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor characterised by the choice of material
- B29C39/006—Monomers or prepolymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/02—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor for making articles of definite length, i.e. discrete articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C39/00—Shaping by casting, i.e. introducing the moulding material into a mould or between confining surfaces without significant moulding pressure; Apparatus therefor
- B29C39/22—Component parts, details or accessories; Auxiliary operations
- B29C39/38—Heating or cooling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2033/00—Use of polymers of unsaturated acids or derivatives thereof as moulding material
- B29K2033/04—Polymers of esters
- B29K2033/12—Polymers of methacrylic acid esters, e.g. PMMA, i.e. polymethylmethacrylate
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
- B29K2067/06—Unsaturated polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/723—Articles for displaying or advertising
- B29L2031/7232—Signs, symbols, plates, panels, boards
Landscapes
- Macromonomer-Based Addition Polymer (AREA)
Abstract
Prepare the invention discloses a kind of preparation method of LED acrylics luminescent characters, including word shell mould, prepared by PMMA slurries, prepared by unsaturated polyester (UP) solution；PMMA slurries are well mixed with unsaturated polyester (UP) solution according to mass ratio, vacuum defoamation after filtering obtains the PMMA slurries that are in the milk；Then PMMA slurries are poured into word shell, exhaust sealing, is placed in the heating/cooling system that continuous wind, water are combined and polymerize, high-temperature process, the demoulding, deburring obtain acrylic luminescent characters；It finally would be embedded with that LED/light source is installed in the word shell of acrylic luminescent characters, obtain LED acrylic luminescent characters.This method can avoid the acrylic leftover pieces problem in traditional LED acrylics luminescent characters manufacturing process and the light leak and aobvious side problem during use, for a kind of technique is simple, materials are saved, equipment investment is few and engineer applied is feasible, is particularly suitable for the preparation method of the LED acrylic luminescent characters of complicated stroke.
Description
Technical field
The present invention relates to a kind of LED acrylics luminescent characters and preparation method thereof, belong to acrylic ad production field.
Background technology
Traditional acrylic luminescent characters are made up of acrylic panel, luminescent characters casing, the part of luminescent characters light source three.Specifically
Be, according to production program, by Japanese " Mitsubishi " acrylic board, the U.S. " apple " acrylic board, Germany " Luo Meng " acrylic board,
Domestic sheet material TaiWan, China " stretching the spring " acrylic board, TaiWan, China " thousand colors " acrylic board or Xiamen " helping prosperous " acrylic board etc. are passed through
Particular manufacturing craft plastic uptake, is connected using sectionally smooth join mode with luminescent characters casing, and installs LED/light source in luminescent characters casing.This
Plant in LED acrylic luminescent characters manufacturing process, the processing of acrylic board plastic uptake has the light leak during leftover pieces and use
With aobvious side problem, the LED acrylics luminescent characters especially for complicated stroke make, and problem is more serious.
The content of the invention
The purpose of the present invention provides a kind of integral cast polymerization technology of preparing it is intended that LED acrylics luminescent characters make, real
It is seamless integrated that existing acrylic luminescent characters and word shell are connected, it is to avoid the Ya Ke in traditional LED acrylics luminescent characters manufacturing process
Light leak and aobvious side problem during power leftover pieces problem and use.
The present invention is realized by following technical proposals.
A kind of preparation method of LED acrylics luminescent characters, comprises the steps：
1) word shell mould prepares：Word shell is made using special word bending machine integration system, and strip reinforcement is welded in inner side, will
After word shell is cleaned up, lie in a horizontal plane on safety glass, cover the tempering of reserved PMMA slurry casts mouthful again above word shell
Glass, upper clamper；
2) prepared by PMMA slurries：
2a) 0.05-0.2 parts of dibenzoyl peroxides and 10-30 parts of poly- methyl-props are dissolved with 100 parts of methyl methacrylates
E pioic acid methyl ester Moulding powder, obtains PMMA solution, and adds 5-10 parts of printing opacity mill bases thereto, and stir obtained slurry A；
2b) with the trimethylamine of 100 parts of 0.5-1 parts of unsaturated polyester (UP)s dissolvings, obtained solution B；
2c) mixing degassing：By step 2a) made from slurry A with and step 2b) made from solution B according to 10：(1-2) compares
Example is well mixed, and vacuum defoamation after filtering obtains PMMA slurry Cs of being in the milk；
3) word shell cast polymerization:By step 2c) made from PMMA slurry Cs, pour into word shell, sprue gate sealed after exhaust,
It is placed in the heating/cooling system that continuous wind, water are combined and polymerize 4-6h；
4) high-temperature process：80-120 DEG C of drying room processing 1-2h is delivered to, the demoulding, deburring obtain acrylic luminescent characters；
5) LED/light source is installed：LED/light source is installed in the word shell for being embedded with acrylic luminescent characters, LED acrylics hair is obtained
Light word.
Preferably, the unsaturated polyester (UP) be under nitrogen protective effect, by ethylene glycol, hexylene glycol, adipic acid,
Terephthalic acid (TPA), M-phthalic acid, trimethylolpropane monomer in molar ratio 2.1:3.6:2.5:1.6:1.8:0.8 heating is molten
Melt after mixing, add the Dibutyltin oxide of monomer mass total amount 0.09%, polycondensation 2.5h, uses methyl under the conditions of 200 DEG C
Methyl acrylate is diluted to concentration and produced for 45%.
Preferably, the trimethylamine is DMA, N, N- dihydroxyethyl p-toluidines or N, N-
It is one or more of in dihydroxypropyl para-totuidine.
Preferably, the wind, water combine heating/cooling system include blast heating section, spraying water cooling section and
Air blast high-temperature process section, blast heating section temperature control is in 40-50 DEG C, mean residence time 0.5-1h；Water cooling of spraying section temperature
Control is in 25-28 DEG C, mean residence time 2-3h；Air blast high-temperature process section temperature control is in 80-120 DEG C, mean residence time
1.5-2h。
Relative to prior art, the technology of the present invention replaces the secondary plastics sucking moulding of acrylic board, spelling using integral cast polymerization
Connect, technique is simple, materials are saved, equipment investment is few and engineer applied is feasible, the LED acrylics for being particularly suitable for complicated stroke light
The making of word.
Embodiment
With reference to embodiment, the invention will be described in further detail, but be not intended as to invention do any limitation according to
According to.
The preparation method of LED acrylics luminescent characters of the present invention, comprises the steps：
1) word shell mould prepares：Word shell is made using special word bending machine integration system, and strip reinforcement is welded in inner side, will
After word shell is cleaned up, lie in a horizontal plane on safety glass, cover the tempering of reserved PMMA slurry casts mouthful again above word shell
Glass, upper clamper.
2) prepared by PMMA slurries：
2a) 0.05-0.2 parts of dibenzoyl peroxides and 10-30 parts of poly- methyl-props are dissolved with 100 parts of methyl methacrylates
E pioic acid methyl ester Moulding powder, obtains PMMA solution, and adds 5-10 parts of Britain's LR mill bases thereto, and stir obtained slurry A；
2b) with the trimethylamine of 100 parts of 0.5-1 parts of unsaturated polyester (UP)s dissolvings, obtained solution B；
Wherein, unsaturated polyester (UP) be under nitrogen protective effect, by ethylene glycol, hexylene glycol, adipic acid, terephthalic acid (TPA),
M-phthalic acid, trimethylolpropane monomer in molar ratio 2.1:3.6:2.5:1.6:1.8:After 0.8 heating melting mixing, then add
Enter the Dibutyltin oxide of monomer mass total amount 0.09%, polycondensation 2.5h, dilute with methyl methacrylate under the conditions of 200 DEG C
Concentration is interpreted into produce for 45%；
In the DMA of trimethylamine two, N, N- dihydroxyethyl p-toluidines, N, N- dihydroxypropyl para-totuidine
It is one or more of；
2c) mixing degassing：By step 2a) made from slurry A with and step 2b) made from solution B according to 10：(1-2) compares
Example is well mixed, and vacuum defoamation after filtering obtains PMMA slurry Cs of being in the milk.
3) word shell cast polymerization:By step 2c) made from PMMA slurry Cs, pour into word shell, sprue gate sealed after exhaust,
It is placed in the heating/cooling system that continuous wind, water are combined and polymerize 4-6h；
The heating/cooling system that wind, water are combined includes blast heating section, spraying water cooling section and air blast high-temperature process section, drum
Wind bringing-up section temperature control is in 40-50 DEG C, mean residence time 0.5-1h；Water cooling of spraying section temperature control is average at 25-28 DEG C
Residence time 2-3h；Air blast high-temperature process section temperature control is in 80-120 DEG C, mean residence time 1.5-2h.
4) high-temperature process：80-120 DEG C of drying room processing 1-2h is delivered to, the demoulding, deburring obtain acrylic luminescent characters.
5) LED/light source is installed：LED/light source is installed in the word shell for being embedded with acrylic luminescent characters, LED acrylics hair is obtained
Light word.
Specific embodiment is given below to further illustrate the present invention.
Embodiment 1
1) word shell mould prepares：Word shell is made using the above method, cleaning is lain in a horizontal plane on safety glass, in word shell
Top covers the safety glass of reserved PMMA slurry casts mouthful, upper clamper；
2) prepared by PMMA slurries：
2a) 0.05 part of dibenzoyl peroxide and 20 parts of poly-methyl methacrylates are dissolved with 100 parts of methyl methacrylates
Ester Moulding powder, obtains PMMA solution, and adds 5 parts of Britain's LR mill bases thereto, and stir obtained slurry A；
2b) 0.5 part of DMA, obtained solution B are dissolved with 100 parts of unsaturated polyester (UP)s；
2c) mixing degassing：By step 2a) made from slurry A with and step 2b) made from solution B according to 10：1 ratio is mixed
Close uniform, vacuum defoamation after filtering obtains PMMA slurry Cs of being in the milk；
3) word shell cast polymerization:By step 2c) made from PMMA slurry Cs, pour into word shell, sprue gate sealed after exhaust,
It is placed in the heating/cooling system that continuous wind, water are combined, blast heating section temperature control is in 50 DEG C, mean residence time
0.5h；Water cooling of spraying section temperature control is in 25 DEG C, mean residence time 3h；Air blast high-temperature process section temperature control is put down at 100 DEG C
Equal residence time 1.5h；
4) high-temperature process：100 DEG C of drying room processing 1h are delivered to, the demoulding, deburring obtain acrylic luminescent characters；
5) LED/light source is installed：LED/light source is installed in the word shell for being embedded with acrylic luminescent characters, LED acrylics hair is obtained
Light word.
Embodiment 2
1) word shell mould prepares：Word shell is made using the above method, cleaning is lain in a horizontal plane on safety glass, in word shell
Top covers the safety glass of reserved PMMA slurry casts mouthful, upper clamper；
2) prepared by PMMA slurries：
2a) 0.1 part of dibenzoyl peroxide and 10 parts of polymethyl methacrylates are dissolved with 100 parts of methyl methacrylates
Moulding powder, obtains PMMA solution, and adds 10 parts of Britain's LR mill bases thereto, and stir obtained slurry A；
2b) 1 part of N, N- dihydroxyethyl p-toluidines, obtained solution B are dissolved with 100 parts of unsaturated polyester (UP)s；
2c) mixing degassing：By step 2a) made from slurry A with and step 2b) made from solution B according to 10：2 ratios are mixed
Close uniform, vacuum defoamation after filtering obtains PMMA slurry Cs of being in the milk；
3) word shell cast polymerization:By step 2c) made from PMMA slurry Cs, pour into word shell, sprue gate sealed after exhaust,
It is placed in the heating/cooling system that continuous wind, water are combined, blast heating section temperature control is in 40 DEG C, mean residence time 1h；
Water cooling of spraying section temperature control is in 26 DEG C, mean residence time 2h；Air blast high-temperature process section temperature control is average to stop at 80 DEG C
Time 2h；
4) high-temperature process：80 DEG C of drying room processing 2h are delivered to, the demoulding, deburring obtain acrylic luminescent characters；
5) LED/light source is installed：LED/light source is installed in the word shell for being embedded with acrylic luminescent characters, LED acrylics hair is obtained
Light word.
Embodiment 3
1) word shell mould prepares：Word shell is made using the above method, cleaning is lain in a horizontal plane on safety glass, in word shell
Top covers the safety glass of reserved PMMA slurry casts mouthful, upper clamper；
2) prepared by PMMA slurries：
2a) 0.2 part of dibenzoyl peroxide and 30 parts of polymethyl methacrylates are dissolved with 100 parts of methyl methacrylates
Moulding powder, obtains PMMA solution, and adds 8 parts of Britain's LR mill bases thereto, and stir obtained slurry A；
0.6 part of N 2b) is dissolved with 100 parts of unsaturated polyester (UP)s, N- dihydroxyethyl p-toluidines and N, N- dihydroxypropyl are to toluene
Amine mixing trimethylamine, obtained solution B；
2c) mixing degassing：By step 2a) made from slurry A with and step 2b) made from solution B according to 10：1.5 ratio
Well mixed, vacuum defoamation after filtering obtains PMMA slurry Cs of being in the milk；
3) word shell cast polymerization:By step 2c) made from PMMA slurry Cs, pour into word shell, sprue gate sealed after exhaust,
It is placed in the heating/cooling system that continuous wind, water are combined and polymerize, blast heating section temperature control is at 45 DEG C, when averagely stopping
Between 0.5h；Water cooling of spraying section temperature control is in 28 DEG C, mean residence time 2.5h；Air blast high-temperature process section temperature control is 120
DEG C, mean residence time 1.5h；
4) high-temperature process：120 DEG C of drying room processing 1h are delivered to, the demoulding, deburring obtain acrylic luminescent characters；
5) LED/light source is installed：LED/light source is installed in the word shell for being embedded with acrylic luminescent characters, LED acrylics hair is obtained
Light word.
LED acrylics luminescent characters of the present invention make, and can avoid the Ya Ke in traditional LED acrylics luminescent characters manufacturing process
Light leak and aobvious side problem during power leftover pieces problem and use, be that a kind of technique is simple, materials are saved, equipment investment is few and
Engineer applied is feasible, is particularly suitable for the preparation method of the LED acrylic luminescent characters of complicated stroke.
The invention is not limited in above-described embodiment, on the basis of technical scheme disclosed by the invention, the skill of this area
Art personnel are according to disclosed technology contents, it is not necessary to which performing creative labour just can make one to some of which technical characteristic
A little to replace and deform, these are replaced and deformed within the scope of the present invention.
Claims (5)
1. a kind of preparation method of LED acrylics luminescent characters, it is characterised in that comprise the steps：
1) word shell mould prepares：Word shell is made using special word bending machine integration system, and strip reinforcement is welded in inner side, by word shell
After cleaning up, lie in a horizontal plane on safety glass, cover the safety glass of reserved PMMA slurry casts mouthful again above word shell,
Upper clamper；
2) prepared by PMMA slurries：
2a) 0.05-0.2 parts of dibenzoyl peroxides and 10-30 parts of polymethylacrylic acid are dissolved with 100 parts of methyl methacrylates
Methyl esters Moulding powder, obtains PMMA solution, and adds 5-10 parts of printing opacity mill bases thereto, and stir obtained slurry A；
2b) with the trimethylamine of 100 parts of 0.5-1 parts of unsaturated polyester (UP)s dissolvings, obtained solution B；
2c) mixing degassing：By step 2a) made from slurry A with and step 2b) made from solution B according to 10：(1-2) ratio is mixed
Close uniform, vacuum defoamation after filtering obtains PMMA slurry Cs of being in the milk；
3) word shell cast polymerization:By step 2c) made from PMMA slurry Cs, pour into word shell, sprue gate sealed after exhaust, be placed in
It polymerize 4-6h in the heating/cooling system that continuous wind, water are combined；
4) high-temperature process：80-120 DEG C of drying room processing 1-2h is delivered to, the demoulding, deburring obtain acrylic luminescent characters；
5) LED/light source is installed：LED/light source is installed in the word shell for being embedded with acrylic luminescent characters, LED acrylic luminescent characters are obtained.
2. a kind of preparation method of LED acrylics luminescent characters according to claim 1, it is characterised in that described unsaturated poly-
Ester is under nitrogen protective effect, by ethylene glycol, hexylene glycol, adipic acid, terephthalic acid (TPA), M-phthalic acid, trihydroxy methyl third
Alkane monomer in molar ratio 2.1:3.6:2.5:1.6:1.8:After 0.8 heating melting mixing, monomer mass total amount 0.09% is added
Dibutyltin oxide, the polycondensation 2.5h under the conditions of 200 DEG C is diluted to concentration with methyl methacrylate and produces for 45%.
3. a kind of preparation method of LED acrylics luminescent characters according to claim 1, it is characterised in that the trimethylamine
It is one or more of in N- dihydroxyethyl p-toluidines or N, N- dihydroxypropyl para-totuidine for DMA, N.
4. a kind of preparation method of LED acrylics luminescent characters according to claim 1, it is characterised in that the printing opacity mill base
For Britain's LR mill bases.
5. a kind of preparation method of LED acrylics luminescent characters according to claim 1, it is characterised in that the wind, water are combined
Heating/cooling system include blast heating section, spraying water cooling section and air blast high-temperature process section, blast heating section temperature control exists
40-50 DEG C, mean residence time 0.5-1h；Water cooling of spraying section temperature control is in 25-28 DEG C, mean residence time 2-3h；Air blast
High-temperature process section temperature control is in 80-120 DEG C, mean residence time 1.5-2h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710334872.5A CN107081865B (en) | 2017-05-12 | 2017-05-12 | A kind of preparation method of LED acrylic luminescent characters |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710334872.5A CN107081865B (en) | 2017-05-12 | 2017-05-12 | A kind of preparation method of LED acrylic luminescent characters |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107081865A true CN107081865A (en) | 2017-08-22 |
| CN107081865B CN107081865B (en) | 2019-08-13 |
Family
ID=59607299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710334872.5A Active CN107081865B (en) | 2017-05-12 | 2017-05-12 | A kind of preparation method of LED acrylic luminescent characters |
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| CN108481640A (en) * | 2018-03-29 | 2018-09-04 | 广德粤华塑业制品有限公司 | A kind of acrylic board cold-hot heat preservation device |
| CN108773136A (en) * | 2018-08-28 | 2018-11-09 | 陕西理工大学 | A kind of preparation method of light thermal-insulation inner wall of building decorative panel |
| CN109732828A (en) * | 2019-01-25 | 2019-05-10 | 吴献忠 | A kind of casting method and device of super word |
| CN110449679A (en) * | 2019-08-02 | 2019-11-15 | 福建捷思金属科技发展有限公司 | A kind of copper sheet moulding encloses word and haves mercy on side soldering method |
| CN110561666A (en) * | 2019-09-05 | 2019-12-13 | 陈辰 | method for making hard acrylic neon lamp by one-step forming process |
| CN111883015A (en) * | 2020-07-28 | 2020-11-03 | 深圳市时代霓虹电子制品有限公司 | Preparation method of light-emitting character of LED yellow-white acrylic panel |
| CN111968544A (en) * | 2020-08-28 | 2020-11-20 | 广州市品致广告制作有限公司 | Acrylic luminous character manufacturing process flow |
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|---|---|---|---|---|
| CN108481640A (en) * | 2018-03-29 | 2018-09-04 | 广德粤华塑业制品有限公司 | A kind of acrylic board cold-hot heat preservation device |
| CN108773136A (en) * | 2018-08-28 | 2018-11-09 | 陕西理工大学 | A kind of preparation method of light thermal-insulation inner wall of building decorative panel |
| CN108773136B (en) * | 2018-08-28 | 2020-06-09 | 陕西理工大学 | Preparation method of light heat-insulation building interior wall decorative plate |
| CN109732828A (en) * | 2019-01-25 | 2019-05-10 | 吴献忠 | A kind of casting method and device of super word |
| CN110449679A (en) * | 2019-08-02 | 2019-11-15 | 福建捷思金属科技发展有限公司 | A kind of copper sheet moulding encloses word and haves mercy on side soldering method |
| CN110561666A (en) * | 2019-09-05 | 2019-12-13 | 陈辰 | method for making hard acrylic neon lamp by one-step forming process |
| CN111883015A (en) * | 2020-07-28 | 2020-11-03 | 深圳市时代霓虹电子制品有限公司 | Preparation method of light-emitting character of LED yellow-white acrylic panel |
| CN111883015B (en) * | 2020-07-28 | 2022-07-12 | 深圳市时代霓虹电子制品有限公司 | Preparation method of light-emitting character of LED yellow-white acrylic panel |
| CN111968544A (en) * | 2020-08-28 | 2020-11-20 | 广州市品致广告制作有限公司 | Acrylic luminous character manufacturing process flow |
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