CN114539735B - PBT/POK composite material and application thereof - Google Patents
PBT/POK composite material and application thereof Download PDFInfo
- Publication number
- CN114539735B CN114539735B CN202210266778.1A CN202210266778A CN114539735B CN 114539735 B CN114539735 B CN 114539735B CN 202210266778 A CN202210266778 A CN 202210266778A CN 114539735 B CN114539735 B CN 114539735B
- Authority
- CN
- China
- Prior art keywords
- pbt
- pok
- composite material
- parts
- resin
- 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.)
- Active
Links
- 239000002131 composite material Substances 0.000 title claims abstract description 51
- 229920005989 resin Polymers 0.000 claims abstract description 45
- 239000011347 resin Substances 0.000 claims abstract description 45
- 229920000642 polymer Polymers 0.000 claims abstract description 15
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 14
- 229920000554 ionomer Polymers 0.000 claims abstract description 13
- 239000003365 glass fiber Substances 0.000 claims abstract description 7
- 239000000155 melt Substances 0.000 claims description 10
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 7
- 239000005977 Ethylene Substances 0.000 claims description 7
- 239000006057 Non-nutritive feed additive Substances 0.000 claims description 6
- 239000004611 light stabiliser Substances 0.000 claims description 5
- 239000003963 antioxidant agent Substances 0.000 claims description 4
- 230000003078 antioxidant effect Effects 0.000 claims description 4
- 239000003086 colorant Substances 0.000 claims description 4
- 239000000314 lubricant Substances 0.000 claims description 4
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims 1
- 230000032683 aging Effects 0.000 abstract description 27
- 239000011159 matrix material Substances 0.000 abstract description 7
- 239000002861 polymer material Substances 0.000 abstract description 2
- 229920001707 polybutylene terephthalate Polymers 0.000 description 68
- 229920001470 polyketone Polymers 0.000 description 60
- 230000000052 comparative effect Effects 0.000 description 13
- 230000014759 maintenance of location Effects 0.000 description 12
- 239000002253 acid Substances 0.000 description 8
- 239000000203 mixture Substances 0.000 description 8
- 239000000956 alloy Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 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 description 3
- 229910045601 alloy Inorganic materials 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000003063 flame retardant Substances 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- NIXOWILDQLNWCW-UHFFFAOYSA-M Acrylate Chemical compound [O-]C(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-M 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- -1 Polybutylene terephthalate Polymers 0.000 description 2
- 229920003182 Surlyn® Polymers 0.000 description 2
- KKEYFWRCBNTPAC-UHFFFAOYSA-N Terephthalic acid Chemical compound OC(=O)C1=CC=C(C(O)=O)C=C1 KKEYFWRCBNTPAC-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 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 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 description 2
- 239000006229 carbon black Substances 0.000 description 2
- 238000002425 crystallisation Methods 0.000 description 2
- 230000008025 crystallization Effects 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- 229910002058 ternary alloy Inorganic materials 0.000 description 2
- 229920005657 Surlyn® 9320 Polymers 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 239000005083 Zinc sulfide Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 239000002216 antistatic agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 1
- 239000012964 benzotriazole Substances 0.000 description 1
- CDQSJQSWAWPGKG-UHFFFAOYSA-N butane-1,1-diol Chemical compound CCCC(O)O CDQSJQSWAWPGKG-UHFFFAOYSA-N 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010668 complexation reaction Methods 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000005886 esterification reaction Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000012170 montan wax Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- WXZMFSXDPGVJKK-UHFFFAOYSA-N pentaerythritol Chemical compound OCC(CO)(CO)CO WXZMFSXDPGVJKK-UHFFFAOYSA-N 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 150000008301 phosphite esters Chemical class 0.000 description 1
- 238000006068 polycondensation reaction Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 150000007970 thio esters Chemical class 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 229940124543 ultraviolet light absorber Drugs 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910052984 zinc sulfide Inorganic materials 0.000 description 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 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
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
Abstract
The invention provides a PBT/POK composite material and application thereof, and relates to the technical field of high polymer materials. The PBT/POK composite material provided by the invention comprises the following components in parts by weight: 15-60 parts of PBT resin, 10-50 parts of POK resin, 25-35 parts of glass fiber, 1-3 parts of compatilizer and 0.3-1 part of heat-resistant agent, wherein the compatilizer is polymer ionomer, and the heat-resistant agent is polycarbodiimide. According to the invention, the PBT resin and the POK resin are used as matrix resin, and the compatibility among the components can be improved by introducing a specific compatilizer and a specific heat-resistant agent into the matrix resin, so that the prepared composite material has good high-temperature oil aging resistance.
Description
Technical Field
The invention relates to the technical field of high polymer materials, in particular to a PBT/POK composite material and application thereof.
Background
Polybutylene terephthalate (PBT) is a polymer obtained by the esterification reaction, dehydration and polycondensation of terephthalic acid and butanediol at high temperature, and is a semi-crystalline thermoplastic polyester. PBT has excellent electrical insulation property, heat resistance, processability, high cost performance and dimensional stability, and is widely applied to the fields of automobile electronics, automobile engine periphery and the like. The peripheral parts of the automobile engine are often required to be contacted with various oil products, such as gearbox oil, materials and the oil products are required to have good high-temperature compatibility, the mechanical properties of the PBT composition can be obviously reduced after the PBT composition is exposed to a high-temperature gearbox for a long time, and how to improve the oil performance of the high-temperature-resistant gearbox of the PBT composition is freshly reported.
Patent CN109280346B discloses a high-impact glass fiber reinforced halogen-free flame-retardant POK/PBT alloy and a preparation method thereof. The high-impact glass fiber reinforced halogen-free flame-retardant PBT/POK alloy has excellent normal-temperature impact strength and low-temperature impact strength, and a 1.6mm flame-retardant spline meets the UL 94V-0 level; the alloy provided by the invention has the characteristics of hydrolysis resistance, low warpage, high flow and low cost, and can be widely applied to the fields of LED lamp ornaments, automobile parts and the like. However, the invention does not make further optimization on the high temperature oil resistance of the composition. The antistatic POK/PET/PBT ternary alloy material prepared by adding an antistatic agent and adopting a blending method in the patent CN109825042A has high and durable antistatic performance, and the toughness and hardness of the POK/PET/PBT ternary alloy material can be adjusted according to different requirements. However, the high temperature resistant oil product performance of the composition of the invention is still obviously insufficient.
Disclosure of Invention
In order to solve the defects in the prior art, the main purpose of the invention is to provide a PBT/POK composite material and application thereof.
In order to achieve the above purpose, in a first aspect, the invention provides a PBT/POK composite material, which comprises the following components in parts by weight: 15-60 parts of PBT resin, 10-50 parts of POK (polyketone) resin, 25-35 parts of glass fiber, 1-3 parts of compatilizer and 0.3-1 part of heat-resistant agent, wherein the compatilizer is polymer ionomer, and the heat-resistant agent is polycarbodiimide.
The invention takes PBT resin and POK resin as matrix resin, and introduces specific compatilizer (namely polymer ionomer) and heat-resistant agent (namely polycarbodiimide) into the matrix resin, wherein the polymer ionomer is a polymer which contains a small amount of suspended acid radicals on a main chain of a macromolecule, and the suspended acid radicals are partially or completely neutralized into salt, and the ionic pairs have unique aggregation state structure under the actions of electrostatic attraction, repulsion, complexation and the like. The polymer ionomer can improve the compatibility of the blend through special interactions such as ion-ion, ion-dipole, hydrogen bond, acid-base, charge transfer, transition metal coordination complex and the like, physical cross-linking formed between polymer chains by multiple ion pairs or ion clusters and chemical reaction; while polycarbodiimides can convert/neutralize water and acids generated during thermal degradation of polymers into harmless urea. The invention combines the two materials, and the prepared composite material has good high-temperature oil aging resistance by adding the two materials into matrix resin.
As a preferred embodiment of the PBT/POK composite material of the present invention, the polymer oligomer is at least one of an ethylene acid oligomer, an ethylene acid acrylate oligomer, and an ethylene/methacrylic acid oligomer.
The inventor finds out through a large number of experiments that the prepared PBT/POK composite material can show excellent high-temperature oil aging resistance compared with the conventional compatilizer by adopting the three polymer ionomers as the compatilizer.
As a preferred embodiment of the PBT/POK composite material of the present invention, the relative molecular mass of the polycarbodiimide is 2000-3000g/mol.
The inventor finds that the relative molecular mass of the polycarbodiimide has a larger influence on the high-temperature oil aging resistance of the PBT/POK composite material, and when the relative molecular mass of the polycarbodiimide is 2000-3000g/mol, the high-temperature oil aging resistance of the prepared PBT/POK composite material is better than that of the PBT/POK composite material corresponding to the relative molecular mass of the polycarbodiimide being lower than 2000 g/mol.
As a preferred embodiment of the PBT/POK composite material of the present invention, the PBT resin has an intrinsic viscosity of 0.82-0.99dl/g.
The viscosity test method of the PBT resin is a method A in GB/T14190-2017, namely a capillary viscosimetry method, wherein the mass ratio of phenol to 1, 2-tetrachloroethane is 50:50.
In the technical scheme of the invention, the intrinsic viscosities of the PBT resins are different, and the aging resistance of the high-temperature resistant oil products of the corresponding PBT/POK composite materials are obviously different. When the intrinsic viscosity of the PBT resin is 0.82-0.99dl/g, the prepared PBT/POK composite material has better high-temperature oil aging resistance.
As a preferred embodiment of the PBT/POK composite material of the present invention, the POK resin has a melt mass flow rate of 6-60g/10min at 240℃under a load of 2.16kg according to ISO 1133-2011.
In the technical scheme of the invention, the melt mass flow rate of the POK resin also has a great influence on the aging performance of the high-temperature resistant oil product of the PBT/POK composite material. A large number of experiments show that the PBT/POK composite material prepared by POK resin with the melt mass flow rate of 6-60g/10min has better high-temperature oil aging resistance.
As a preferred embodiment of the PBT/POK composite material, the PBT/POK composite material further comprises 0.1-3 parts by weight of a processing aid.
As a preferred embodiment of the PBT/POK composite material of the present invention, the processing aid includes at least one of an antioxidant, a light stabilizer, a lubricant, and a colorant.
In the technical scheme of the invention, the antioxidant can be selected from at least one of pentaerythritol tetra [ beta- (3, 5-di-tert-butyl-4-hydroxyphenyl) propionate (namely antioxidant 1010), phosphite ester, thioester and hindered phenol; the light stabilizer can be at least one selected from benzotriazole ultraviolet light absorbers and hindered amine light stabilizers; the lubricant can be at least one selected from pentaerythritol stearate, silicone and montan wax; the colorant can be at least one selected from carbon black, zinc sulfide, titanium dioxide and organic dye.
In a second aspect, the invention also provides an application of the PBT/POK composite material in preparing automobile engine parts. Preferably, the automotive engine part is a gearbox.
Compared with the prior art, the invention has the beneficial effects that:
according to the technical scheme, the PBT resin and the POK resin are used as matrix resin, and the compatibility among the components can be improved by introducing a specific compatilizer and a specific heat-resistant agent into the matrix resin, so that the prepared composite material has good high-temperature oil aging resistance.
Detailed Description
For a better description of the objects, technical solutions and advantages of the present invention, the present invention will be further described by means of specific examples.
The raw material sources of the examples and comparative examples of the present invention are as follows:
1. PBT resin
PBT resin 1: intrinsic viscosity 0.68dl/g, brand PBT GX110, available from Middling petrochemical company;
PBT resin 2: intrinsic viscosity 0.82dl/g, brand PBT GX112, available from Middling petrochemical company;
PBT resin 3: the intrinsic viscosity is 0.99dl/g, the brand is PBT GX121, and the product is purchased from China petrochemical instrumentation chemical company;
PBT resin 4: intrinsic viscosity 2.8dl/g, brand PBT GX236, available from Middling petrochemical company;
2. POK resin
POK resin 1: the melt mass flow rate was 6g/10min, brand POK M630A, available from Korea dawn;
POK resin 2: the melt mass flow rate was 60g/10min, brand POK M330A, available from Korea dawn;
POK resin 3: the melt mass flow rate was 150g/10min, brand POK M230A, available from Korea dawn;
3. glass fiber: are commercially available;
4. compatibilizing agent
Vinyl acid ionomers: the trademark Surlyn 8920, available from DuPont;
ethylene acid acrylate ionomers: the trade name Surlyn 9320, available from dupont;
ethylene/methacrylic acid ionomers: the brand Surlyn 9910, available from DuPont;
common compatilizer: styrene-acrylonitrile-glycidyl methacrylate copolymer, trade name SAG-005, commercially available from jia Yi Rong;
5. heat-resistant agent
Polycarbodiimide 1: the relative molecular mass is 362g/mol, with the brand name of Stabilizer, available from RASCHIG GmbH;
polycarbodiimide 2: the relative molecular mass is 2000g/mol, with the trade name Stbaxol P200, available from Rhine chemistry;
polycarbodiimide 3: the relative molecular mass is 3000g/mol, the trade name is Stbaxol P, purchased from Rhine chemistry;
6. processing aid
An antioxidant: antioxidant 1010, commercially available;
light stabilizers: UV-234, commercially available;
and (3) a lubricant: pentaerythritol stearate, commercially available;
coloring agent: carbon black, commercially available.
In the following examples and comparative examples, glass fibers and processing aids were obtained commercially, and the same was used in parallel experiments unless otherwise specified.
The preparation method of the PBT/POK composite material in the embodiment and the comparative example comprises the following steps: the components are added into a high-speed mixer according to the proportion, stirred uniformly, added into a double-screw extruder by a feeder, extruded, cooled, dried and granulated.
The relevant performance test criteria or methods in the examples and comparative examples of the present invention are as follows:
1. initial tensile Strength
The samples were injection molded into 150mm x 10mm x 4mm dumbbell bars and tested for tensile strength according to ISO 527-1-2012, at a tensile speed of 5mm/min;
2. aging resistance of high temperature oil (i.e. high temperature oil resistant tensile strength)
Adding gearbox oil into a high-pressure reaction kettle, soaking 150mm x 10mm x 4mm dumbbell-shaped sample bars into the gearbox oil, then placing the reaction kettle into a baking oven at 150 ℃, taking out the sample bars after 1000 hours, carrying out tensile strength test after conditioning for 24H at 23 ℃/50% RH, and calculating the performance retention rate compared with the original performance.
TABLE 1 content of the components (in parts by weight) of examples 1-9 and comparative examples 1-6
TABLE 2 Performance test results for examples 1-9, comparative examples 1-6
As shown in tables 1 and 2, the PBT/POK composite materials prepared in examples 1-9 have higher initial tensile strength, and the tensile strength retention rate can reach more than 70% after oil aging resistance at 150 ℃.
The PBT/POK composite material prepared in the comparative example 1 has an initial tensile strength lower than that of the PBT/POK composite materials prepared in the examples 3 and 6-7, and the PBT/POK composite materials prepared in the examples 3 and 6-7 have a tensile strength retention rate after oil aging at 150 ℃ which is significantly higher than that of the PBT/POK composite materials prepared in the comparative example 1, indicating that the PBT/POK composite materials prepared by using the polymer interpolymer as the compatibilizer have good initial tensile strength and a tensile strength retention rate after oil aging at 150 ℃.
The relative molecular masses of the heat-resistant agent polycarbodiimides in the example 3 and the examples 8-9 are different, and the tensile strength retention rate of the PBT/POK composite material prepared by the example 8 with the relative molecular mass of 362g/mol is relatively low after oil aging resistance at 150 ℃;
compared with the example 3, the comparative example 2 does not add any compatilizer, and the initial tensile strength and the retention rate of the tensile strength after oil aging resistance at 150 ℃ of the prepared PBT/POK composite material are very low, so that the requirements of automobile engine parts on mechanical properties and oil aging resistance are difficult to meet.
Compared with the example 1, the addition amount of the compatilizer in the comparative example 3 is too high, and ethylene acid or acrylic acid fragments in the polymer ionomer molecular chain can influence the regularity of crystallization of the composition, so that the initial tensile strength and the retention rate of the tensile strength of the prepared PBT/POK composite material after oil aging resistance at 150 ℃ are lower;
compared with the example 3, the comparative example 4 is free from adding the heat-resistant agent, and the initial tensile strength and the retention rate of the tensile strength after oil aging resistance at 150 ℃ of the prepared PBT/POK composite material are very low, so that the requirements of automobile engine parts on mechanical properties and oil aging resistance are difficult to meet.
Compared with the example 1, the addition amount of the heat resistant agent in the comparative example 5 is too high, the melt viscosity of the system is increased, the regularity of the crystallization of the composition is destroyed, the initial tensile strength of the prepared PBT/POK composite material, the retention rate of the tensile strength after oil aging at 150 ℃ is very low, and the extrusion processing of the material is difficult;
compared with the example 3, the addition amount of the PBT resin and the POK resin in the comparative example 6 is not in a limited range, and the tensile strength retention rate of the prepared PBT/POK composite material after oil aging resistance at 150 ℃ is very low, so that the requirements of automobile engine parts on mechanical properties and oil aging resistance are difficult to meet.
The effect of the intrinsic viscosity of the PBT resin and the melt mass flow rate of the POK resin on the performance of the PBT/POK composite material was examined based on the reference of example 2. The content of each component is shown in Table 3.
TABLE 3 content of the components (in parts by weight) of example 2, examples 10-14
TABLE 4 Performance test results for example 2, examples 10-14
As can be seen from tables 3 and 4, the intrinsic viscosities of the PBT resin only in examples 2 and 10-12 are different, and the initial tensile strength and the retention rate of the tensile strength after oil aging resistance at 150 ℃ of the PBT/POK composite materials prepared in examples 2 and 11 are higher than those of examples 10 and 12, which shows that the high-temperature oil aging resistance of the prepared PBT/POK composite materials is better when the intrinsic viscosities of the PBT resins are 0.82-0.99dl/g.
Only POK resins in examples 2 and 13-14 are different in melt mass flow rate, and the PBT/POK composite materials prepared in example 2 and example 13 are higher in initial tensile strength and tensile strength retention rate after oil aging resistance at 150 ℃ than in example 14, so that the PBT/POK composite materials prepared by using the POK resins with the melt mass flow rate of 6-60g/10min are better in high-temperature oil aging resistance.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted equally without departing from the spirit and scope of the technical solution of the present invention.
Claims (8)
1. The PBT/POK composite material is characterized by comprising the following components in parts by weight: 15-60 parts of PBT resin, 10-50 parts of POK resin, 25-35 parts of glass fiber, 1-3 parts of compatilizer and 0.3-1 part of heat-resistant agent, wherein the compatilizer is polymer ionomer, and the heat-resistant agent is polycarbodiimide;
the polymer ionomer is an ethylene/methacrylic acid ionomer.
2. The PBT/POK composite material of claim 1, wherein the polycarbodiimide has a relative molecular mass of 2000-3000g/mol.
3. The PBT/POK composite material of claim 1, wherein the PBT resin has an intrinsic viscosity of 0.82-0.99dl/g according to GB/T14190-2017.
4. The PBT/POK composite material of claim 1, wherein the POK resin has a melt mass flow rate of 6-60g/10min at 240 ℃ under a load of 2.16kg according to ISO 1133-2011.
5. The PBT/POK composite material of claim 1, further comprising 0.1 to 3 parts by weight of a processing aid.
6. The PBT/POK composite material of claim 5, wherein the processing aid comprises at least one of an antioxidant, a light stabilizer, a lubricant, and a colorant.
7. Use of the PBT/POK composite material according to any one of claims 1 to 6 for the manufacture of automotive engine parts.
8. The use of claim 7, wherein the automotive engine part is a gearbox.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210266778.1A CN114539735B (en) | 2022-03-17 | 2022-03-17 | PBT/POK composite material and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210266778.1A CN114539735B (en) | 2022-03-17 | 2022-03-17 | PBT/POK composite material and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114539735A CN114539735A (en) | 2022-05-27 |
| CN114539735B true CN114539735B (en) | 2023-12-08 |
Family
ID=81663463
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210266778.1A Active CN114539735B (en) | 2022-03-17 | 2022-03-17 | PBT/POK composite material and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114539735B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006341021A (en) * | 2005-06-10 | 2006-12-21 | Sri Sports Ltd | Golf ball |
| CN101155874A (en) * | 2005-02-07 | 2008-04-02 | 纳幕尔杜邦公司 | Thermoplastic vulcanisate blend |
| CN105419253A (en) * | 2015-11-20 | 2016-03-23 | 金发科技股份有限公司 | Polybutylene terephthalate composition and preparation method thereof |
| CN108034204A (en) * | 2017-12-28 | 2018-05-15 | 广东聚石化学股份有限公司 | A kind of low-temperature impact-resistant polymer blend and preparation method thereof |
| CN109280346A (en) * | 2018-09-07 | 2019-01-29 | 广东聚石化学股份有限公司 | A kind of high impact resistance fiberglass enhancing halogen-free flameproof POK/PBT alloy and preparation method thereof |
| CN109825042A (en) * | 2019-01-14 | 2019-05-31 | 广东壹豪新材料科技股份有限公司 | A kind of POK/PET/PBT ternary-alloy material and its preparation process |
| CN110698809A (en) * | 2019-11-28 | 2020-01-17 | 青岛中新华美塑料有限公司 | Anti-aging and anti-impact composite material and preparation method thereof |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7094861B2 (en) * | 2003-12-30 | 2006-08-22 | General Electric Company | Thermoplastic composition containing polymeric anti-static salt, method of making, and use thereof |
-
2022
- 2022-03-17 CN CN202210266778.1A patent/CN114539735B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101155874A (en) * | 2005-02-07 | 2008-04-02 | 纳幕尔杜邦公司 | Thermoplastic vulcanisate blend |
| JP2006341021A (en) * | 2005-06-10 | 2006-12-21 | Sri Sports Ltd | Golf ball |
| CN105419253A (en) * | 2015-11-20 | 2016-03-23 | 金发科技股份有限公司 | Polybutylene terephthalate composition and preparation method thereof |
| CN108034204A (en) * | 2017-12-28 | 2018-05-15 | 广东聚石化学股份有限公司 | A kind of low-temperature impact-resistant polymer blend and preparation method thereof |
| CN109280346A (en) * | 2018-09-07 | 2019-01-29 | 广东聚石化学股份有限公司 | A kind of high impact resistance fiberglass enhancing halogen-free flameproof POK/PBT alloy and preparation method thereof |
| CN109825042A (en) * | 2019-01-14 | 2019-05-31 | 广东壹豪新材料科技股份有限公司 | A kind of POK/PET/PBT ternary-alloy material and its preparation process |
| CN110698809A (en) * | 2019-11-28 | 2020-01-17 | 青岛中新华美塑料有限公司 | Anti-aging and anti-impact composite material and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114539735A (en) | 2022-05-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112608595B (en) | Red phosphorus flame-retardant polyamide composition and preparation method and application thereof | |
| CN112194893B (en) | Hydrolysis-resistant reinforced flame-retardant PA6-POK alloy material and preparation method thereof | |
| CN105419253A (en) | Polybutylene terephthalate composition and preparation method thereof | |
| CN105038218A (en) | PA66 composite material and preparation method thereof | |
| CN112795183A (en) | High-strength, low-shrinkage and low-precipitation environment-friendly flame-retardant polyamide composition and preparation method thereof | |
| CN111234498A (en) | PC/ABS alloy with excellent humidity-heat aging resistance and preparation method thereof | |
| CN112852125A (en) | Low-warpage damp-heat aging-resistant high-pressure-resistant flame-retardant polyester material and preparation method thereof | |
| CN107365494B (en) | PA6/PC/PBT ternary alloy material and preparation method thereof | |
| CN114437519A (en) | PBT/PC alloy material and preparation method and application thereof | |
| CN114539735B (en) | PBT/POK composite material and application thereof | |
| CN112662143A (en) | PBT composition with high elongation at break and preparation method thereof | |
| CN115627063B (en) | Flame-retardant PBT/PC alloy material and preparation method and application thereof | |
| CN103897356A (en) | Hydrolysis resistant high temperature resistant thermoplastic polyester elastomer composition | |
| CN113292838B (en) | Halogen-free low-warpage low-linear-expansion-coefficient extrusion-grade thin-wall flame-retardant polycarbonate composite material and preparation method thereof | |
| CN111925655B (en) | Wear-resistant flexible PEI cable material, preparation method thereof and cable | |
| CN111004476B (en) | Engineering plastic composition and preparation method thereof | |
| CN109467907B (en) | PC/PMMA/PBT composite material and preparation method thereof | |
| CN112480630A (en) | Good-appearance halogen-free flame-retardant polycarbonate composition for high-speed rail and preparation method thereof | |
| CN112778716A (en) | Halogen-free flame-retardant reinforced PET material with high heat deformation temperature and preparation method thereof | |
| CN105462225A (en) | Anti-static PC-PBT alloy material and preparation method thereof and safe toe cap | |
| CN114907563B (en) | Flame-retardant modified PA56/5T material and preparation method and application thereof | |
| CN111320856A (en) | Composite material for high-performance PC, PBT and PTFE and preparation method thereof | |
| KR20190139476A (en) | Polybutylene terephthalate resin composition and molded product prepared therefrom | |
| CN115572467B (en) | Polyester composition and preparation method and application thereof | |
| CN115536971B (en) | Heat aging-resistant ASA/PBT composition and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |