CN115651375B - Halogen flame-retardant PBT material, and preparation method and application thereof - Google Patents
Halogen flame-retardant PBT material, and preparation method and application thereof Download PDFInfo
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- CN115651375B CN115651375B CN202211319149.7A CN202211319149A CN115651375B CN 115651375 B CN115651375 B CN 115651375B CN 202211319149 A CN202211319149 A CN 202211319149A CN 115651375 B CN115651375 B CN 115651375B
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- flame retardant
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- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 239000003063 flame retardant Substances 0.000 title claims abstract description 56
- 239000000463 material Substances 0.000 title claims abstract description 43
- 229910052736 halogen Inorganic materials 0.000 title claims abstract description 31
- 150000002367 halogens Chemical class 0.000 title claims abstract description 31
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- 239000003365 glass fiber Substances 0.000 claims abstract description 12
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 4
- 239000011347 resin Substances 0.000 claims abstract description 3
- 229920005989 resin Polymers 0.000 claims abstract description 3
- BIKXLKXABVUSMH-UHFFFAOYSA-N trizinc;diborate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]B([O-])[O-].[O-]B([O-])[O-] BIKXLKXABVUSMH-UHFFFAOYSA-N 0.000 claims description 26
- 239000011324 bead Substances 0.000 claims description 23
- 239000011521 glass Substances 0.000 claims description 23
- 239000002245 particle Substances 0.000 claims description 13
- 238000002844 melting Methods 0.000 claims description 11
- 230000008018 melting Effects 0.000 claims description 11
- 239000003963 antioxidant agent Substances 0.000 claims description 6
- 230000003078 antioxidant effect Effects 0.000 claims description 6
- 239000000314 lubricant Substances 0.000 claims description 6
- -1 3, 5-di-tert-butyl-4-hydroxyphenyl Chemical group 0.000 claims description 4
- 239000004593 Epoxy Substances 0.000 claims description 4
- 239000004793 Polystyrene Substances 0.000 claims description 4
- GHPGOEFPKIHBNM-UHFFFAOYSA-N antimony(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Sb+3].[Sb+3] GHPGOEFPKIHBNM-UHFFFAOYSA-N 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 4
- 239000004033 plastic Substances 0.000 claims description 4
- 229920003023 plastic Polymers 0.000 claims description 4
- 229920002223 polystyrene Polymers 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 238000005469 granulation Methods 0.000 claims description 3
- 230000003179 granulation Effects 0.000 claims description 3
- RKISUIUJZGSLEV-UHFFFAOYSA-N n-[2-(octadecanoylamino)ethyl]octadecanamide Chemical compound CCCCCCCCCCCCCCCCCC(=O)NCCNC(=O)CCCCCCCCCCCCCCCCC RKISUIUJZGSLEV-UHFFFAOYSA-N 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- JKIJEFPNVSHHEI-UHFFFAOYSA-N Phenol, 2,4-bis(1,1-dimethylethyl)-, phosphite (3:1) Chemical compound CC(C)(C)C1=CC(C(C)(C)C)=CC=C1OP(OC=1C(=CC(=CC=1)C(C)(C)C)C(C)(C)C)OC1=CC=C(C(C)(C)C)C=C1C(C)(C)C JKIJEFPNVSHHEI-UHFFFAOYSA-N 0.000 claims description 2
- 229920000388 Polyphosphate Polymers 0.000 claims description 2
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 claims description 2
- OCKWAZCWKSMKNC-UHFFFAOYSA-N [3-octadecanoyloxy-2,2-bis(octadecanoyloxymethyl)propyl] octadecanoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(COC(=O)CCCCCCCCCCCCCCCCC)(COC(=O)CCCCCCCCCCCCCCCCC)COC(=O)CCCCCCCCCCCCCCCCC OCKWAZCWKSMKNC-UHFFFAOYSA-N 0.000 claims description 2
- CJZGTCYPCWQAJB-UHFFFAOYSA-L calcium stearate Chemical compound [Ca+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O CJZGTCYPCWQAJB-UHFFFAOYSA-L 0.000 claims description 2
- 239000008116 calcium stearate Substances 0.000 claims description 2
- 235000013539 calcium stearate Nutrition 0.000 claims description 2
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 2
- 239000001205 polyphosphate Substances 0.000 claims description 2
- 235000011176 polyphosphates Nutrition 0.000 claims description 2
- VSVVZZQIUJXYQA-UHFFFAOYSA-N [3-(3-dodecylsulfanylpropanoyloxy)-2,2-bis(3-dodecylsulfanylpropanoyloxymethyl)propyl] 3-dodecylsulfanylpropanoate Chemical compound CCCCCCCCCCCCSCCC(=O)OCC(COC(=O)CCSCCCCCCCCCCCC)(COC(=O)CCSCCCCCCCCCCCC)COC(=O)CCSCCCCCCCCCCCC VSVVZZQIUJXYQA-UHFFFAOYSA-N 0.000 claims 1
- 239000004005 microsphere Substances 0.000 claims 1
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 claims 1
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 2
- 239000011707 mineral Substances 0.000 abstract description 2
- 229920001707 polybutylene terephthalate Polymers 0.000 description 27
- 230000000052 comparative effect Effects 0.000 description 22
- 239000010410 layer Substances 0.000 description 6
- 238000011056 performance test Methods 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 238000009472 formulation Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229920000728 polyester Polymers 0.000 description 3
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 239000013065 commercial product Substances 0.000 description 2
- 229920006351 engineering plastic Polymers 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000011325 microbead Substances 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000004416 thermosoftening plastic Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000006060 molten glass Substances 0.000 description 1
- XKIVKIIBCJIWNU-UHFFFAOYSA-N o-[3-pentadecanethioyloxy-2,2-bis(pentadecanethioyloxymethyl)propyl] pentadecanethioate Chemical compound CCCCCCCCCCCCCCC(=S)OCC(COC(=S)CCCCCCCCCCCCCC)(COC(=S)CCCCCCCCCCCCCC)COC(=S)CCCCCCCCCCCCCC XKIVKIIBCJIWNU-UHFFFAOYSA-N 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
Abstract
The invention discloses a halogen flame-retardant PBT material, a preparation method and application thereof, wherein the halogen flame-retardant PBT material comprises the following components in parts by weight: 36-78 parts of PBT resin; 10-30 parts of glass fiber; 1 5-15 parts of flame retardant; 21-5 parts of flame retardant; 31-3 parts of flame retardant; 5-10 parts of minerals; 0.5-1 part of auxiliary agent. The halogen flame-retardant PBT material provided by the invention has excellent flame retardance and CTI performance, so that the PBT material can be applied to the field with high requirements on the electrical performance of the material.
Description
Technical Field
The invention belongs to the technical field of engineering plastics, and particularly relates to a halogen flame-retardant PBT material, and a preparation method and application thereof.
Background
Polybutylene terephthalate (polybutylene terephthalate; abbreviated as PBT) is one of the most important thermoplastic polyesters, and five engineering plastics, which are polyesters produced by polycondensation of terephthalic acid and 1, 4-butanediol. PBT is a milky semitransparent to opaque semi-crystalline thermoplastic polyester, and has the characteristics of high heat resistance (can work for a long time at 140 ℃), toughness, fatigue resistance, self lubrication, low friction coefficient, organic solvent resistance and the like. Because of these excellent properties, PBT finds wide application in the fields of automobiles, mechanical equipment, precision instrument parts, electronic appliances, textiles, and the like. Compared with halogen-free flame-retardant materials, the halogen-containing flame-retardant PBT material has better mechanical properties. However, the halogen flame-retardant PBT material cannot be used on parts with certain high-voltage requirements because of the low CTI value of the current halogen flame-retardant PBT material.
Therefore, how to improve the CTI value of the halogen flame-retardant PBT material and widen the application range of the PBT material is a problem to be solved urgently.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention provides a halogen flame-retardant PBT material, and a preparation method and application thereof. The halogen flame-retardant PBT material provided by the invention has excellent flame retardant property and CTI value.
The method is realized by the following technical scheme:
the halogen flame-retardant PBT material comprises the following components in parts by weight:
the flame retardant 1 is brominated polystyrene and/or brominated epoxy flame retardant;
the flame retardant 2 is antimony white or crystalline polyphosphate;
the flame retardant 3 is zinc borate.
The melting point of the glass beads is 330-400 ℃, and the glass beads are compounded with zinc borate, so that when the material is combusted, the melting point of the glass beads is low, the glass beads can be rapidly melted during combustion, and a compact glass layer is formed on the surface, and the flame retardant property and CTI of the material are obviously improved. Zinc borate can also improve CTI, but the zinc borate is used alone, the addition amount is very high to achieve a certain effect, but the addition amount is too high at the same time to cause the poor mechanical strength of the material, and the zinc borate and the low-melting-point microbeads are compounded, so that the zinc borate and the low-melting-point microbeads can be used cooperatively to facilitate melting, and an insulating layer is formed on the surface more easily.
Further, the particle size of the zinc borate is 2-4 mu m. The zinc borate has small particle size, is easy to disperse in the material, and is favorable for forming an isolation layer.
Further, the particle size of the glass beads is 5-25 μm. The particle size is small, the dispersion is easy, the isolation layer formed during melting is more compact, and the effect of improving CTI value is better.
Further, the weight ratio of the glass beads to the zinc borate is (2-3): 1. The glass beads and the zinc borate particles have certain difference, and the zinc borate with low particle size can compensate the pores generated after the beads with larger relative particle size form the protective layer. The smaller the bead size, the lower the zinc borate ratio. The two mutually complemented, the formed isolation layer is better, so that the CTI value is better improved.
Further, the glass fibers are chopped fibers with a length of 3-5 mm.
Further, the auxiliary agent is an antioxidant and/or a lubricant. Specifically, the antioxidant can be one or more of pentaerythritol tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ], pentaerythritol tetra (3-laurylthiopropionate) and tris [2, 4-di-tert-butylphenyl ] phosphite; the lubricant is one or more of Ethylene Bis Stearamide (EBS), E wax, calcium stearate and pentaerythritol tetrastearate.
The invention also provides a preparation method of the halogen flame-retardant PBT material, which comprises the following steps:
s1: weighing the components according to the proportion, premixing the components except the glass fiber, and then adding the components into an extruder;
s2: and feeding glass fibers into the extruder from the side, and carrying out melt extrusion and granulation to obtain the halogen flame-retardant PBT material.
The invention also provides application of the halogen flame-retardant PBT material in preparing plastic parts of electronic and electric, and is particularly suitable for preparing plastic parts with high requirements on electric performance, such as copper bars for vehicles, circuit breakers of household appliances, current sensors for vehicles and the like.
The beneficial effects are that:
according to the invention, minerals and zinc borate are added into the PBT resin, so that a molten glass layer is formed in the material in the combustion process, the CTI value of the halogen flame-retardant PBT material is improved, and the problem that the halogen flame-retardant PBT material cannot be applied to the field with higher requirements on electrical performance due to low CTI value is solved. The flame retardant grade of the halogen flame retardant PBT material provided by the invention can reach V-0, and the CTI value is 300V-375V.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
< preparation of examples and comparative examples >
The raw materials used in the examples and comparative examples of the present invention are derived from homemade or commercially available materials, but are not limited to these materials:
PBT: brand GX112, purchased from ceremony chemical;
glass fiber: chopped fiber, 3.0mm in length, trade mark ECS11-3.0-534A, purchased from China boulder;
brominated polystyrene: the trademark Saytex 621, available from Yabao, USA;
brominated epoxy flame retardant: brand F-2100, purchased from Israel dead sea;
antimony white: brand S-12N, available from Guangzhou flash Star antimony industry;
zinc borate a: particle size of 2-4 μm, trade name FIREBRAKE 500, available from Rio Tinto, U.S.A.;
the particle size of the zinc borate B is 5-8 mu m, and the zinc borate B is brand HT-207 and is purchased from the fine chemical industry of Taixing;
glass bead A: melting point 330 ℃, grain size 5-15 μm, brand FD46, purchased from Anhui micro-nano;
glass bead B: melting point 400 ℃, particle size 10-25 μm, brand D240, purchased from Anhui micro-nano;
glass bead C: melting point 600 deg.C, particle size 15-20 μm, brand 050-20-215, purchased from Sophitec;
glass bead D: the melting point is 380 ℃, the grain diameter is 30-40 mu m, the brand HS38 is purchased from Santa Clay of Zhengzhou;
an antioxidant: commercial, the same commercial product was used in the parallel experiments;
and (3) a lubricant: commercially available, the same commercial product was used in the parallel experiments.
The preparation methods of the examples and comparative examples of the present invention are as follows:
s1: weighing the components according to the proportion, premixing the components except the glass fiber, and then adding the components into an extruder;
s2: and (3) feeding the glass fiber into the extruder from the side, and carrying out melt extrusion and granulation to obtain the halogen flame-retardant PBT material.
In the present specification, "parts" means "parts by weight" unless specifically stated otherwise.
< Performance test method >
The performance test methods of the respective examples and comparative examples of the present invention are as follows:
flame retardant properties: UL94,1.6mm;
CTI performance: IEC 60112-2020. CTI values of 225-250V are conventional, and exceeding this range is believed to increase CTI.
TABLE 1 EXAMPLES 1 to 6 formulations
| Component (A) | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Example 6 |
| PBT (portion) | 50 | 50 | 36 | 78 | 50 | 50 |
| Glass fiber (part) | 20 | 20 | 30 | 10 | 20 | 20 |
| Brominated polystyrene (part) | 10 | 10 | 15 | 10 | 10 | |
| Brominated epoxy flame retardant (part) | 5 | |||||
| Antimony white (part) | 3 | 3 | 5 | 1 | 3 | 3 |
| Zinc borate A (parts) | 2 | 2 | 1 | 3 | 2 | 2 |
| Glass bead A (part) | 7 | 5 | 10 | 6 | 9 | |
| Glass bead B (part) | 7 | |||||
| Antioxidant (part) | 0.5 | 0.5 | 1 | 0 | 0.5 | 0.5 |
| Lubricant (parts) | 0.5 | 0.5 | 0 | 1 | 0.5 | 0.5 |
TABLE 2 EXAMPLES 7 to 12 formulations
TABLE 3 Performance test results for examples 1-6
| Test item | Example 1 | Example 2 | Example 3 | Example 4 | Example 5 | Example 6 |
| Flame retardant rating | V-0 | V-0 | V-0 | V-0 | V-0 | V-0 |
| CTI(V) | 350 | 350 | 300 | 320 | 325 | 375 |
TABLE 4 Performance test results for examples 7-12
| Test item | Example 7 | Example 8 | Example 9 | Example 10 | Example 11 | Example 12 |
| Flame retardant rating | V-0 | V-0 | V-0 | V-0 | V-0 | V-0 |
| CTI(V) | 325 | 325 | 375 | 375 | 325 | 300 |
TABLE 5 formulation of comparative examples 1-7
TABLE 6 Performance test results for comparative examples 1-7
| Test item | Comparative example 1 | Comparative example 2 | Comparative example 3 | Comparative example 4 | Comparative example 5 | Comparative example 6 | Comparative example 7 |
| Flame retardant rating | V-0 | V-0 | V-0 | V-0 | V-0 | V-0 | V-0 |
| CTI | 250V | 225V | 250V | 250V | 225V | 275V | 225V |
According to the test results of the examples 1-12, the flame retardant grades of the examples 1-12 can reach V-0, and the CTI value is in the range of 300-375V, so that the CTI value of the halogen flame retardant PBT material provided by the invention can be effectively improved, and the halogen flame retardant PBT material can be suitable for electronic and electric plastic parts with higher CTI value requirements.
Comparative examples 1 and 2 comparative example 1 did not increase zinc borate, comparative example 2 did not increase glass beads, resulting in failure to improve CTI of both comparative example 1 and comparative example 2.
Comparative examples 3 and 4 show that the CTI value is not improved or is not remarkably improved when the zinc borate is used in an amount exceeding the range of example 1. This is because zinc borate has a high melting point, and in CTI test, zinc borate itself has a certain auxiliary effect on fluxing, but zinc borate itself cannot be melted, so that an excessive amount of zinc borate cannot make the CTI value of a material higher.
The comparative examples 5 and 6 were not excellent in CTI value improvement effect due to the fact that the glass beads were used in an excessive amount as compared with example 1. If the usage amount of the glass beads is increased after reaching a certain continuous phase, the glass beads have no obvious beneficial effect on CTI.
Comparative example 7 the glass beads have a melting point exceeding the upper limit compared to example 1, resulting in a serious decrease in CTI value of comparative example 7.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the invention are intended to be included within the scope of the invention.
Claims (8)
1. The halogen flame-retardant PBT material is characterized by comprising the following components in parts by weight:
36-78 parts of PBT resin;
10-30 parts of glass fiber;
1 5-15 parts of flame retardant;
21-5 parts of flame retardant;
31-3 parts of flame retardant;
5-10 parts of glass beads;
0.5-1 part of auxiliary agent;
the flame retardant 1 is brominated polystyrene and/or brominated epoxy flame retardant;
the flame retardant 2 is antimony white or crystalline polyphosphate;
the flame retardant 3 is zinc borate;
the melting point of the glass beads is 330-400 ℃;
the particle size of the glass beads is 5-25 mu m;
the particle size of the zinc borate is 2-4 mu m.
2. The halogen flame-retardant PBT material according to claim 1, wherein the weight ratio of the glass microspheres to the zinc borate is (2-3): 1.
3. The halogen-containing flame retardant PBT material of claim 1, wherein the glass fibers are chopped fibers having a length of 3 to 5 mm.
4. The halogen flame retardant PBT material of claim 1, wherein the auxiliary agent is an antioxidant and/or a lubricant.
5. The halogen flame retardant PBT material according to claim 4, wherein the antioxidant is one or more of pentaerythritol tetrakis [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate ], pentaerythritol tetrakis (3-laurylthiopropionate) and tris [2, 4-di-tert-butylphenyl ] phosphite.
6. The halogen flame retardant PBT material of claim 1, wherein the lubricant is one or more of ethylene bis stearamide, E wax, calcium stearate and pentaerythritol tetrastearate.
7. A method of preparing a halogen flame retardant PBT material according to any of claims 1 to 6, comprising the steps of:
s1: weighing the components according to the proportion, premixing the components except the glass fiber, and then adding the components into an extruder;
s2: and feeding glass fibers into the extruder from the side, and carrying out melt extrusion and granulation to obtain the halogen flame-retardant PBT material.
8. Use of the halogen flame retardant PBT material according to any of claims 1 to 6 for the preparation of plastic parts for electronic and electrical applications.
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| CN202211319149.7A CN115651375B (en) | 2022-10-26 | 2022-10-26 | Halogen flame-retardant PBT material, and preparation method and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211319149.7A CN115651375B (en) | 2022-10-26 | 2022-10-26 | Halogen flame-retardant PBT material, and preparation method and application thereof |
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| CN115651375B true CN115651375B (en) | 2024-03-12 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020228255A1 (en) * | 2019-05-10 | 2020-11-19 | 宁波先锋新材料股份有限公司 | High thermal-insulation and flame-retardant fiber thread, manufacturing method therefor, and high thermal-insulation and flame-retardant sunshade fabric based on fiber thread |
| WO2021253771A1 (en) * | 2020-06-15 | 2021-12-23 | 金发科技股份有限公司 | Low-smoke density high-performance halogen-containing flame-retardant reinforced pbt composite and preparation method therefor |
| CN114426763A (en) * | 2022-01-17 | 2022-05-03 | 漳州宏兴泰电子有限公司 | Flame-retardant reinforced PBT (polybutylene terephthalate) material with high CTI (comparative tracking index) and high GWIT (glow wire ignition temperature) and preparation method thereof |
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- 2022-10-26 CN CN202211319149.7A patent/CN115651375B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020228255A1 (en) * | 2019-05-10 | 2020-11-19 | 宁波先锋新材料股份有限公司 | High thermal-insulation and flame-retardant fiber thread, manufacturing method therefor, and high thermal-insulation and flame-retardant sunshade fabric based on fiber thread |
| WO2021253771A1 (en) * | 2020-06-15 | 2021-12-23 | 金发科技股份有限公司 | Low-smoke density high-performance halogen-containing flame-retardant reinforced pbt composite and preparation method therefor |
| CN114426763A (en) * | 2022-01-17 | 2022-05-03 | 漳州宏兴泰电子有限公司 | Flame-retardant reinforced PBT (polybutylene terephthalate) material with high CTI (comparative tracking index) and high GWIT (glow wire ignition temperature) and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 杨家祥 ; 孙菲 ; 吴喜元 ; 陈锐 ; .空心玻璃微珠填充无卤玻璃纤维增强阻燃PA66性能研究.塑料工业.2020,第48卷(第09期),127-129. * |
| 空心玻璃微珠填充无卤玻璃纤维增强阻燃PA66性能研究;杨家祥;孙菲;吴喜元;陈锐;;塑料工业;第48卷(第09期);127-129 * |
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