CN112778716A - Halogen-free flame-retardant reinforced PET material with high heat deformation temperature and preparation method thereof - Google Patents
Halogen-free flame-retardant reinforced PET material with high heat deformation temperature and preparation method thereof Download PDFInfo
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- 239000003063 flame retardant Substances 0.000 title claims abstract description 64
- 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 42
- 239000000463 material Substances 0.000 title claims abstract description 22
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 239000003365 glass fiber Substances 0.000 claims abstract description 26
- DXZMANYCMVCPIM-UHFFFAOYSA-L zinc;diethylphosphinate Chemical compound [Zn+2].CCP([O-])(=O)CC.CCP([O-])(=O)CC DXZMANYCMVCPIM-UHFFFAOYSA-L 0.000 claims abstract description 22
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 16
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 16
- 239000002667 nucleating agent Substances 0.000 claims abstract description 16
- 239000000314 lubricant Substances 0.000 claims abstract description 15
- 150000001875 compounds Chemical class 0.000 claims abstract description 11
- 238000002156 mixing Methods 0.000 claims abstract description 8
- 230000005855 radiation Effects 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 5
- 229920005989 resin Polymers 0.000 claims abstract description 4
- 239000011347 resin Substances 0.000 claims abstract description 4
- 239000002904 solvent Substances 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims abstract description 4
- 239000011230 binding agent Substances 0.000 claims abstract description 3
- HIVGXUNKSAJJDN-UHFFFAOYSA-N [Si].[P] Chemical group [Si].[P] HIVGXUNKSAJJDN-UHFFFAOYSA-N 0.000 claims description 7
- ADCOVFLJGNWWNZ-UHFFFAOYSA-N antimony trioxide Inorganic materials O=[Sb]O[Sb]=O ADCOVFLJGNWWNZ-UHFFFAOYSA-N 0.000 claims description 7
- -1 polyethylene Polymers 0.000 claims description 7
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims description 6
- 229920000877 Melamine resin Polymers 0.000 claims description 4
- 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 4
- 239000004698 Polyethylene Substances 0.000 claims description 4
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 4
- 229920000573 polyethylene Polymers 0.000 claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 3
- 229920000388 Polyphosphate Polymers 0.000 claims description 3
- 125000001931 aliphatic group Chemical group 0.000 claims description 3
- 150000007942 carboxylates Chemical class 0.000 claims description 3
- 239000003484 crystal nucleating agent Substances 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- 239000001205 polyphosphate Substances 0.000 claims description 3
- 235000011176 polyphosphates Nutrition 0.000 claims description 3
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- WPMYUUITDBHVQZ-UHFFFAOYSA-N 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoic acid Chemical compound CC(C)(C)C1=CC(CCC(O)=O)=CC(C(C)(C)C)=C1O WPMYUUITDBHVQZ-UHFFFAOYSA-N 0.000 claims description 2
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 2
- 229920003171 Poly (ethylene oxide) Polymers 0.000 claims description 2
- 239000004743 Polypropylene Substances 0.000 claims description 2
- BGYHLZZASRKEJE-UHFFFAOYSA-N [3-[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxy]-2,2-bis[3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoyloxymethyl]propyl] 3-(3,5-ditert-butyl-4-hydroxyphenyl)propanoate Chemical compound CC(C)(C)C1=C(O)C(C(C)(C)C)=CC(CCC(=O)OCC(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)(COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)COC(=O)CCC=2C=C(C(O)=C(C=2)C(C)(C)C)C(C)(C)C)=C1 BGYHLZZASRKEJE-UHFFFAOYSA-N 0.000 claims description 2
- TXQVDVNAKHFQPP-UHFFFAOYSA-N [3-hydroxy-2,2-bis(hydroxymethyl)propyl] octadecanoate Chemical compound CCCCCCCCCCCCCCCCCC(=O)OCC(CO)(CO)CO TXQVDVNAKHFQPP-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
- 229920001971 elastomer Polymers 0.000 claims description 2
- 239000000806 elastomer Substances 0.000 claims description 2
- 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 description 2
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 claims description 2
- 229920001155 polypropylene Polymers 0.000 claims description 2
- 229920001296 polysiloxane Polymers 0.000 claims description 2
- 229940037312 stearamide Drugs 0.000 claims description 2
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 2
- 229920002554 vinyl polymer Polymers 0.000 claims description 2
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims 1
- 239000003973 paint Substances 0.000 claims 1
- 239000002131 composite material Substances 0.000 abstract description 20
- 238000000034 method Methods 0.000 abstract description 3
- 239000012752 auxiliary agent Substances 0.000 abstract 1
- 230000002195 synergetic effect Effects 0.000 abstract 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 38
- 239000005020 polyethylene terephthalate Substances 0.000 description 38
- 230000000052 comparative effect Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- REBHQKBZDKXDMN-UHFFFAOYSA-M [PH2]([O-])=O.C(C)[Al+]CC Chemical group [PH2]([O-])=O.C(C)[Al+]CC REBHQKBZDKXDMN-UHFFFAOYSA-M 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000007580 dry-mixing Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 229920000137 polyphosphoric acid Polymers 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
- C08L67/02—Polyesters derived from dicarboxylic acids and dihydroxy compounds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/22—Halogen free composition
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a high-heat-deformation-temperature halogen-free flame-retardant reinforced PET material and a preparation method thereof, wherein the PET material comprises the following components in parts by weight: PET resin: 40-70 parts of a binder; glass fiber: 20-40 parts of a solvent; a compatilizer: 0-15 parts; flame retardant: 5-20 parts of a solvent; antioxidant: 0-1 part; nucleating agent: 0-0.5 parts; lubricant: 0-1 part; the operation steps comprise: (1) putting the dried PET, the compatilizer, the halogen-free flame retardant compound and the antioxidant into a high-speed mixer, and stirring for 2-4 minutes at the rotating speed of 700-900 revolutions per minute; (2) and respectively adding the mixture and the glass fiber into a double-screw extruder through a main feeding port and a side feeding port of the double-screw extruder, and mixing, dispersing, melt extruding and granulating. By using the synergistic flame retardant, the nucleating agent, the lubricant, the self-made compatilizer by using a radiation grafting method and other auxiliary agents, the excellent mechanical property and appearance characteristic of the PET/GF composite material are well kept, and the flame retardance and the heat distortion temperature of the composite material are obviously improved.
Description
Technical Field
The invention relates to the technical field of thermoplastic polymer materials, in particular to a high-heat-deformation-temperature halogen-free flame-retardant reinforced PET material and a preparation method thereof.
Background
Polyethylene terephthalate (PET) is a thermoplastic polyester developed in the 70 th 20 th century, and has wide application prospects in national economy and high-tech industries due to price and source advantages. The composite material formed by the glass fiber modified PET is widely applied to the fields of automobiles, electrical and electronic, machinery and the like. However, the PET/GF composite material generally has the problems of poor flame retardant effect (the limiting oxygen index LOI is 22-25%) and low thermal deformation temperature (70-90 ℃), which greatly limits the application range thereof.
However, the mechanical property of the PET/GF composite material is reduced due to the addition of the flame retardant, and the influence is more obvious along with the increase of the addition amount of the flame retardant.
Disclosure of Invention
The invention aims to provide a high-heat-deformation-temperature halogen-free flame-retardant reinforced PET material, which has excellent mechanical property and flame-retardant property, improves the heat deformation temperature of a composite material to the maximum extent, and is applied to the field of high temperature resistance; the invention also aims to provide a preparation method of the halogen-free flame-retardant reinforced PET material with high heat distortion temperature.
A high-heat-deformation-temperature halogen-free flame-retardant reinforced PET material comprises the following components in parts by weight: PET resin: 40-70 parts of a binder; glass fiber: 0-40 parts; a compatilizer: 0-15 parts; flame retardant: 5-20 parts of a solvent; antioxidant: 0-1 part; nucleating agent: 0-0.5 parts; lubricant: 0 to 1 part.
The PET resin has an intrinsic viscosity of 0.68-0.85 dl/g.
The glass fiber is short alkali-free glass fiber, the diameter of the glass fiber is 13 mu m, and the length of the glass fiber is 3-5 mm.
The compatilizer is one of maleic anhydride radiation grafted polyethylene, maleic anhydride radiation grafted polypropylene and maleic anhydride radiation grafted polyethylene copolymerized elastomer.
The flame retardant is phosphorus-silicon flame retardant or coated with red phosphorus and melamine polyphosphate (MPP) or Sb2O3The weight ratio of the compound of (1) to (2) is 4: 1-2: 1.
The antioxidant is a compound of tris (2, 4-di-tert-butylphenyl) phosphite (antioxidant 168) and tetrakis [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol (antioxidant 1010) in a weight ratio of 1:1 to 2: 1.
The nucleating agent is one of aliphatic long carbon chain saturated carboxylate NAV101 and nanometer polymer rod crystal nucleating agent.
The lubricant is one of calcium stearate, zinc stearate, pentaerythritol stearate, polyethylene oxide wax, silicone master batch, high-melting-point OP wax and vinyl bis-stearamide.
A preparation method of a high-heat-deformation-temperature halogen-free flame-retardant reinforced PET material comprises the following operation steps: (1) putting the dried PET, the compatilizer, the halogen-free flame retardant compound, the antioxidant, the nucleating agent and the lubricant into a high-speed mixer, and stirring for 2-4 minutes at the rotating speed of 700-900 rpm; (2) and (2) adding the mixture obtained in the step (1) and the glass fiber into a double-screw extruder through a main feeding port and a side feeding port of the double-screw extruder respectively, and mixing, dispersing, melt extruding and granulating.
The double-screw extruder in the step (2) has a length-diameter ratio of 36:1, and comprises eight zones, wherein the temperature of each zone is as follows: the temperature of the first zone is 270-280 ℃, the temperature of the second zone is 270-280 ℃, the temperature of the third zone is 270-280 ℃, the temperature of the fourth zone is 260-270 ℃, the temperature of the fifth zone is 260-270 ℃, the temperature of the sixth zone is 260-270 ℃, the temperature of the seventh zone is 265-280 ℃, the temperature of the eighth zone is 265-280 ℃ and the temperature of the machine head is 280-290 ℃. The rotating speed of a screw of the main machine is 35-45 HZ, the rotating speed of a feeding screw is 25-35 HZ, and the vacuum degree is-0.05 to-0.8 MPa.
Compared with the prior art, the method for measuring the performance of the product has the following beneficial effects: adopting phosphorus-silicon flame retardant or coating red phosphorus and melamine polyphosphate (MPP) or Sb2O3The composite flame retardant remarkably improves the flame retardant property and the thermal deformation temperature of the PET/GF composite material; the mechanical property of the flame-retardant reinforced PET material is well maintained by using the compatilizer self-prepared by a radiation grafting method; the prepared PET material has good appearance characteristics. Therefore, the invention widens the application effect and application field of the PET/GF composite material.
Detailed Description
In order that the invention may be better understood, the following further description is provided, taken in conjunction with the accompanying examples, so that the advantages and features of the invention will be more readily understood by those skilled in the art. It should be noted that the following description is only a preferred embodiment of the present invention, but the present invention is not limited to the following embodiment. In fact, it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the scope or spirit of the invention. For instance, features illustrated or described as part of one embodiment, can be used with another embodiment to yield a still further embodiment. Therefore, it is intended that the present invention encompass such modifications and variations within the scope of the appended claims and their equivalents.
The technical solution of the present invention is further described below with reference to specific examples.
Example 1
The halogen-free flame-retardant reinforced PET/GF composite material with high heat deformation temperature comprises the following components in percentage by mass: 52% of PET, 30% of glass fiber, 2% of compatilizer, 15% of halogen-free flame retardant, 0.2% of antioxidant, 0.3% of nucleating agent and 0.5% of lubricant; the halogen-free flame retardant is a compound formed by uniformly mixing 66.7 percent of phosphorus-silicon flame retardant and 33.3 percent of melamine polyphosphoric acid flame retardant.
The preparation method comprises the following steps: (1) putting the dried PET, the compatilizer, the halogen-free flame retardant compound, the antioxidant, the nucleating agent and the lubricant into a high-speed mixer, and stirring for 2-4 minutes at the rotating speed of 700-900 rpm; (2) and (2) adding the mixture obtained in the step (1) and the glass fiber into a double-screw extruder through a main feeding port and a side feeding port of the double-screw extruder respectively, and mixing, dispersing, melt extruding and granulating. Obtaining the halogen-free flame retardant reinforced PET material granules with high heat distortion temperature.
Example 2
The halogen-free flame-retardant reinforced PET/GF composite material with high heat deformation temperature comprises the following components in percentage by mass: 52% of PET, 30% of glass fiber, 2% of compatilizer, 15% of halogen-free flame retardant, 0.2% of antioxidant, 0.3% of nucleating agent and 0.5% of lubricant; the halogen-free flame retardant is a compound obtained by uniformly mixing 80% of phosphorus-silicon flame retardant and 20% of antimony trioxide flame retardant.
The preparation method is the same as that of example 1.
Example 3
The halogen-free flame-retardant reinforced PET/GF composite material with high heat deformation temperature comprises the following components in percentage by mass: 52% of PET, 30% of glass fiber, 2% of compatilizer, 15% of halogen-free flame retardant, 0.2% of antioxidant, 0.3% of nucleating agent and 0.5% of lubricant; the halogen-free flame retardant is a compound formed by uniformly mixing 50% of phosphorus-silicon flame retardant and 50% of antimony trioxide flame retardant.
The preparation method is the same as that of example 1.
Comparative example 1
The halogen-free flame-retardant glass fiber reinforced PET composite material comprises the following components in percentage by mass: 62% of PET, 20% of glass fiber, 2% of compatilizer, 15% of halogen-free flame retardant, 0.2% of antioxidant, 0.3% of nucleating agent and 0.5% of lubricant, wherein the flame retardant is diethyl aluminum phosphinate flame retardant.
The preparation method is the same as that of example 1.
Comparative example 2
The halogen-free flame-retardant glass fiber reinforced PET composite material comprises the following components in percentage by mass: 57% of PET, 30% of glass fiber, 2% of compatilizer, 10% of halogen-free flame retardant, 0.2% of antioxidant, 0.3% of nucleating agent and 0.5% of lubricant, wherein the flame retardant is phosphorus-silicon flame retardant.
The preparation method is the same as that of example 1.
Comparative example 3
The glass fiber reinforced PET composite material comprises the following components in percentage by mass: 67% of PET, 30% of glass fiber, 2% of compatilizer, 0.2% of antioxidant, 0.3% of nucleating agent and 0.5% of lubricant.
The preparation method comprises the following steps: (1) putting the dried PET, the compatilizer, the antioxidant, the nucleating agent and the lubricant into a high-speed mixer for dry mixing for 2-4 minutes at the rotating speed of 700-900 revolutions per minute; (2) and (2) adding the mixture obtained in the step (1) and the glass fiber into a double-screw extruder through a main feeding port and a side feeding port of the double-screw extruder respectively, and mixing, dispersing, melt extruding and granulating to obtain the PET/GF composite material.
TABLE 1 Performance test results for PET/GF composites
The results of the performance tests of the PET/GF composite are shown in Table 1. As can be seen from Table 1, the heat distortion temperature performance of the PET/GF composite material in the embodiment is obviously better than that of the comparative example, and the heat distortion temperature can be improved by nearly 150 percent to the maximum. By adjusting the type, the using amount and the proportion of the flame retardant, the PET/GF composite material has higher thermal deformation temperature, excellent flame retardant property and mechanical property and good appearance characteristic.
The foregoing description of the embodiments is presented to enable one of ordinary skill in the art to make and use the invention and is not intended to limit the invention to the particular forms disclosed. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, those skilled in the art should, in light of the present disclosure, appreciate that many changes and modifications can be made in the invention without departing from the scope of the invention.
Claims (10)
1. A high heat distortion temperature halogen-free flame retardant reinforced PET material is characterized in that: the paint comprises the following components in parts by weight: PET resin: 40-70 parts of a binder; glass fiber: 0-40 parts; a compatilizer: 0-15 parts; flame retardant: 5-20 parts of a solvent; antioxidant: 0-1 part; nucleating agent: 0-0.5 parts; lubricant: 0 to 1 part.
2. The high heat distortion temperature halogen-free flame retardant reinforced PET material as claimed in claim 1, characterized in that: the PET is 0.68-0.85 dl/g in intrinsic viscosity, and the drying temperature is 120-140 ℃ for 4-6 hours.
3. The high heat distortion temperature halogen-free flame retardant reinforced PET material as claimed in claim 1, characterized in that: the glass fiber is short alkali-free glass fiber, the diameter of the glass fiber is 13 mu m, and the length of the glass fiber is 3-5 mm.
4. The high heat distortion temperature halogen-free flame retardant reinforced PET material as claimed in claim 1, characterized in that: the nucleating agent is one of aliphatic long carbon chain saturated carboxylate NAV101 and nano polymer rod crystal nucleating agent; the compatilizer is one of maleic anhydride radiation grafted polyethylene, maleic anhydride radiation grafted polypropylene and maleic anhydride radiation grafted polyethylene copolymerized elastomer.
5. The high heat distortion temperature halogen-free flame retardant reinforced PET material as claimed in claim 1, characterized in that: the flame retardant is phosphorus-silicon flame retardant or coated with red phosphorus and melamine polyphosphate (MPP) or Sb2O3The weight ratio of the compound of (1) to (2) is 4: 1-2: 1.
6. The high heat distortion temperature halogen-free flame retardant reinforced PET material as claimed in claim 1, characterized in that: the antioxidant is a compound of tris (2, 4-di-tert-butylphenyl) phosphite (antioxidant 168) and tetrakis [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionic acid ] pentaerythritol (antioxidant 1010) in a weight ratio of 1:1 to 2: 1.
7. The high heat distortion temperature halogen-free flame retardant reinforced PET material as claimed in claim 1, characterized in that: the nucleating agent is one of aliphatic long carbon chain saturated carboxylate NAV101 and nanometer polymer rod crystal nucleating agent.
8. The high heat distortion temperature halogen-free flame retardant reinforced PET material as claimed in claim 1, characterized in that: the lubricant is one of calcium stearate, zinc stearate, pentaerythritol stearate, polyethylene oxide wax, silicone master batch, high-melting-point OP wax and vinyl bis-stearamide.
9. A preparation method of a high-heat-deformation-temperature halogen-free flame-retardant reinforced PET material is characterized by comprising the following operation steps: (1) putting the dried PET, the compatilizer, the halogen-free flame retardant compound and the antioxidant into a high-speed mixer, and stirring for 2-4 minutes at the rotating speed of 700-900 revolutions per minute; (2) and (2) adding the mixture obtained in the step (1) and the glass fiber into a double-screw extruder through a main feeding port and a side feeding port of the double-screw extruder respectively, and mixing, dispersing, melt extruding and granulating.
10. The preparation method of the high heat distortion temperature halogen-free flame retardant reinforced PET material according to claim 9, characterized in that: the length-diameter ratio of the twin-screw extruder in the step (2) is 36:1, and the twin-screw extruder comprises eight zones, wherein the temperature of each zone is respectively as follows: the temperature of the first zone is 270-280 ℃, the temperature of the second zone is 270-280 ℃, the temperature of the third zone is 270-280 ℃, the temperature of the fourth zone is 260-270 ℃, the temperature of the fifth zone is 260-270 ℃, the temperature of the sixth zone is 260-270 ℃, the temperature of the seventh zone is 265-280 ℃, the temperature of the eighth zone is 265-280 ℃ and the temperature of the machine head is 280-290 ℃; the rotating speed of a screw of the main machine is 35-45 HZ, the rotating speed of a feeding screw is 25-35 HZ, and the vacuum degree is-0.05 to-0.8 MPa.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011634598.1A CN112778716A (en) | 2020-12-31 | 2020-12-31 | Halogen-free flame-retardant reinforced PET material with high heat deformation temperature and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011634598.1A CN112778716A (en) | 2020-12-31 | 2020-12-31 | Halogen-free flame-retardant reinforced PET material with high heat deformation temperature and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114571821A (en) * | 2022-03-30 | 2022-06-03 | 浙江海利得地板有限公司 | PET floor and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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