CN117777700A - Hydrolysis-resistant PPO alloy material and preparation method thereof - Google Patents
Hydrolysis-resistant PPO alloy material and preparation method thereof Download PDFInfo
- Publication number
- CN117777700A CN117777700A CN202311852745.6A CN202311852745A CN117777700A CN 117777700 A CN117777700 A CN 117777700A CN 202311852745 A CN202311852745 A CN 202311852745A CN 117777700 A CN117777700 A CN 117777700A
- Authority
- CN
- China
- Prior art keywords
- resin
- hydrolysis
- ppo
- alloy material
- parts
- 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.)
- Pending
Links
- 239000000956 alloy Substances 0.000 title claims abstract description 83
- 238000006460 hydrolysis reaction Methods 0.000 title claims abstract description 70
- 230000007062 hydrolysis Effects 0.000 title claims abstract description 69
- 238000002360 preparation method Methods 0.000 title abstract description 7
- 229920005989 resin Polymers 0.000 claims abstract description 79
- 239000011347 resin Substances 0.000 claims abstract description 79
- 239000004593 Epoxy Substances 0.000 claims abstract description 42
- 229920002050 silicone resin Polymers 0.000 claims abstract description 37
- 239000002994 raw material Substances 0.000 claims abstract description 24
- FPYJFEHAWHCUMM-UHFFFAOYSA-N maleic anhydride Chemical compound O=C1OC(=O)C=C1 FPYJFEHAWHCUMM-UHFFFAOYSA-N 0.000 claims abstract description 19
- 239000003365 glass fiber Substances 0.000 claims abstract description 17
- 239000007787 solid Substances 0.000 claims abstract description 11
- 239000010445 mica Substances 0.000 claims description 25
- 229910052618 mica group Inorganic materials 0.000 claims description 25
- 239000000843 powder Substances 0.000 claims description 25
- 239000000203 mixture Substances 0.000 claims description 9
- 229920002302 Nylon 6,6 Polymers 0.000 claims description 8
- 239000008187 granular material Substances 0.000 claims description 8
- 229920000577 Nylon 6/66 Polymers 0.000 claims description 7
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 claims description 7
- 238000009826 distribution Methods 0.000 claims description 6
- 239000011159 matrix material Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 32
- 238000010521 absorption reaction Methods 0.000 description 15
- 229910045601 alloy Inorganic materials 0.000 description 14
- 230000000052 comparative effect Effects 0.000 description 11
- 125000003700 epoxy group Chemical group 0.000 description 9
- 229920002292 Nylon 6 Polymers 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- 238000001514 detection method Methods 0.000 description 6
- 229920001296 polysiloxane Polymers 0.000 description 4
- 239000000920 calcium hydroxide Substances 0.000 description 3
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 3
- 238000004132 cross linking Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000014759 maintenance of location Effects 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 125000003277 amino group Chemical group 0.000 description 2
- 239000000378 calcium silicate Substances 0.000 description 2
- 229910052918 calcium silicate Inorganic materials 0.000 description 2
- OYACROKNLOSFPA-UHFFFAOYSA-N calcium;dioxido(oxo)silane Chemical compound [Ca+2].[O-][Si]([O-])=O OYACROKNLOSFPA-UHFFFAOYSA-N 0.000 description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 230000010494 opalescence Effects 0.000 description 2
- 239000012466 permeate Substances 0.000 description 2
- GVLZQVREHWQBJN-UHFFFAOYSA-N 3,5-dimethyl-7-oxabicyclo[2.2.1]hepta-1,3,5-triene Chemical compound CC1=C(O2)C(C)=CC2=C1 GVLZQVREHWQBJN-UHFFFAOYSA-N 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 229910001125 Pa alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 229920006351 engineering plastic Polymers 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- -1 methylphenyl hydrogen Chemical compound 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical class O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
Landscapes
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The application discloses a hydrolysis-resistant PPO alloy material and a preparation method thereof, wherein the PPO alloy material comprises the following raw materials in parts by weight: 98-121 parts of PPO resin, 4.8-40.6 parts of PA resin, 2.9-10.6 parts of maleic anhydride grafted PPO, 9.6-50.3 parts of inorganic glass fiber, 2.1-8.9 parts of epoxy modified silicone resin (calculated by solid content), and 0.05-0.09 part of epoxy value.
Description
Technical Field
The application relates to an organic synthetic material, in particular to a hydrolysis-resistant PPO alloy material and a preparation method thereof.
Background
PPO, known under the chemical name poly-2, 6-dimethyl-1, 4-phenylene ether, has some properties of heat resistance, electrical insulation and flame retardance, but has the advantages of excessive rigidity, toughness, and a tendency to stress cracking.
Therefore, other engineering plastics are mixed into the PPO, such as nylon or nylon 6 or nylon 66, so that the toughness of the obtained PPO alloy material can be obviously improved, the impact resistance is stronger, and the PPO alloy material is not easy to break under external impact.
However, the inclusion of nylon or nylon 6 or nylon 66 reduces the water resistance of the obtained PPO alloy material, is easy to absorb water and is easy to hydrolyze compared with the original PPB, so that the PPO alloy material mixed with PA resin components is limited in use and cannot be used in outdoor or indoor humid environments for a long time.
Disclosure of Invention
The PPO alloy material resistant to hydrolysis and the preparation method thereof are provided for long-term use of the PPO/PA alloy material in outdoor or indoor humid environments.
The first object of the present invention is achieved by the following technical solutions:
a hydrolysis-resistant PPO alloy material comprises the following raw materials in parts by weight:
98 to 121 parts of PPO resin,
4.8 to 40.6 portions of PA resin,
maleic anhydride grafted PPO 2.9-10.6 weight portions,
9.6 to 50.3 portions of inorganic glass fiber,
2.1 to 8.9 parts of epoxy modified silicone resin (calculated by solid content) and the epoxy value is 0.05 to 0.09.
By adopting the technical scheme, firstly, the inorganic glass fiber is added in the PPO alloy, so that the toughness of the PPO alloy can be improved, meanwhile, the penetration of water into the PPO alloy is blocked from a physical angle, the water absorption of the PPO is reduced, and the PPO is more hydrolysis-resistant;
on the other hand, epoxy modified silicon resin is also added in the application, the epoxy modified silicon resin has better water resistance than PA resin component resin, the addition of the epoxy modified silicon resin can reduce the water absorption of PPO alloy, meanwhile, under the control of the dosage of the epoxy modified silicon resin in the application, the obtained PPO alloy has residual epoxy groups, when water permeates the PPO alloy, the epoxy groups react with water to open loops before the PA resin component, so that the hydrolysis of the PA resin component is slowed down, the epoxy groups are reversely hydrolyzed along with the increase of the permeation of water, react with amino groups and carboxyl groups generated by the hydrolysis of the PA resin component after the opening loops, so that new crosslinking is formed, the water resistance of the PA resin component is improved, and the strength reduction caused by the hydrolysis of the PA resin component is compensated;
therefore, the PPO alloy material resistant to hydrolysis is good in strength and wide in application environment range.
Optionally: the PA resin is one of PA6, PA66 and PA6/66.
Optionally: the PA resin is PA6/66.
By adopting the technical scheme, when PA6, PA66 and PA6/66 are selected as PA resins and the relative viscosity is controlled to be 2.2-2.8, the PA resins and the PPO resins are better in compatibility and more uniform in mixing, and the obtained PPO alloy material is better in toughness and more hydrolysis-resistant, wherein PA6/66 is better.
Optionally: the epoxy value of the epoxy modified silicone resin is 0.08-0.09.
By adopting the technical scheme, the obtained PPO alloy has good toughness and optimal hydrolysis resistance.
Optionally: the dosage of the epoxy modified silicone resin is not less than 19-75wt% of the PA resin.
Through the technical scheme, the PPO alloy material has better performance.
Optionally: also comprises 4.8 to 8.1 parts of mica powder soaked in calcium hydroxide solution.
According to the technical scheme, in the process of immersing the mica powder in calcium hydroxide, silicon dioxide at the fracture and crack position of the surface crack is easy to react with the calcium hydroxide to produce calcium silicate, and the crack is blocked; meanwhile, the strength of the mica powder is enhanced, so that the water-proof property and strength of the obtained mica powder are improved, and after the mica powder is further mixed into a PPO alloy material, the water absorption property of the mica powder can be remarkably reduced, and the hydrolysis resistance of the mica powder is improved.
Optionally: the fineness distribution of the mica powder soaked in the calcium hydroxide solution is 10-50 mu m.
By adopting the technical scheme, the mica powder with the fineness is distributed more uniformly in the PPO alloy material, and has better effect of reducing the water absorption of the PPO alloy material and improving the hydrolysis resistance.
The second object of the present invention is achieved by the following technical solutions:
the preparation method of the PPO alloy material with high strength and hydrolysis resistance comprises the following steps:
s1: accurately weighing raw materials according to the proportion;
s2: adding maleic anhydride grafted PPO, PPO, PA resin into a double-screw extruder, extruding and granulating to obtain matrix granules;
s3, adding the matrix granules and the rest of other raw materials except the inorganic glass fibers into a stirring barrel, and stirring and uniformly mixing to obtain a mixture;
s4: and (3) sending the mixture into a main feeding hopper of a double-screw extruder, sending inorganic glass fibers into a side feeding hopper of the double-screw extruder, and extruding and granulating to obtain granules, namely the product.
Through adopting above-mentioned technical scheme, mix PA resin, PPO resin, maleic anhydride grafting PPO earlier and granulate, make PA resin and PPO resin mix more even while make maleic anhydride grafting PPO go up the grafting chain consumption of maleic anhydride, avoid it to consume epoxy, make the PPO alloy of this application show in toughness, hydrolysis resistance and promote from this.
In summary, the present application has at least the following beneficial effects:
1. by adding the inorganic glass fiber and the epoxy modified silicone resin, the water is prevented from penetrating into the PPO alloy material, and under the control of the dosage of the epoxy modified silicone resin, the epoxy modified silicone resin has residual epoxy groups in the PPO alloy, so that the hydrolysis or new crosslinking of the PA resin component can be slowed down, the waterproofness of the PA resin component is improved, the strength reduction caused by the hydrolysis of the PA resin component is compensated, and the hydrolysis-resistant PPO alloy material is obtained, and has good strength and wide application environment range.
2. The maleic anhydride grafted PPO is used as maleic anhydride grafted PPO, and when the maleic anhydride grafted PPO is mixed at high temperature and high pressure, the grafting chain of the maleic anhydride grafted PPO and the PA resin are crosslinked, and the main chain of the maleic anhydride grafted PPO has high compatibility with the PPO, so that the compatibility of the PPO resin and the PA resin can be obviously improved, and the mixture of the PPO resin and the PA resin is more uniform.
Detailed Description
Raw materials:
epoxy modified silicone resin 1 (IOTA-H-30)
Appearance: pale yellow to colorless transparent liquid, allowing opalescence, and no mechanical impurities;
the solid content is as follows: 50+/-1%;
viscosity: 20-60 seconds (4 cups are coated);
epoxy value: 0.02 to 0.07.
Epoxy modified silicone resin 2 (IOTAH-60)
Appearance: a yellowish transparent liquid, allowing opalescence, free of mechanical impurities;
the solid content is as follows: 50+/-1%;
viscosity: 40-80 seconds (4 cups are coated);
epoxy value: 0.045-0.085.
Epoxy modified silicone resin 3 (IOTAH-E25)
Appearance: pale yellow to colorless transparent liquid, no mechanical impurities;
the solid content is as follows: 50+/-1%;
viscosity: 30-70 seconds (4 cups coated);
epoxy value: 0.03 to 0.06.
The PPO resin is blue star brand LXN045 product.
In the PA resin, PA6 is Pasteff B3UM6, PA66 is Pasteff A3EG6, and PA6/66 is Pasteff PA6/66C40.
Maleic anhydride grafted PPO is E028 of Shanghai round origin.
The inorganic glass fiber is chopped glass fiber, the length is 0.8-0.9 cm, and the diameter is 0.04mm.
The mica powder has three materials with particle size distribution specification of 1-5 μm, 10-50 μm and 100-150 μm respectively.
Example 1
A hydrolysis-resistant PPO alloy material comprises the following raw materials in parts by weight:
118 parts of PPO resin
40.6 parts of PA resin
9.3 parts of maleic anhydride grafted PPO,
43.7 parts of inorganic glass fiber,
8.2 parts of epoxy modified silicone resin (calculated by solid content);
12.1 parts of modified mica powder.
The preparation method of the PPO alloy material with high strength and hydrolysis resistance comprises the following steps:
s1: accurately weighing raw materials according to the proportion;
s2: adding maleic anhydride grafted PPO, PPO, PA resin into a double-screw extruder, extruding and granulating to obtain matrix granules, wherein the temperature of the same-direction double-screw extruder is 250-260 ℃, and the rotating speed of the same-direction double-screw extruder is 250-400 r/min;
s3, adding the matrix granules and the rest of other raw materials except the inorganic glass fibers into a stirring barrel, and stirring and uniformly mixing to obtain a mixture;
s4: the mixture is sent into a main feeding hopper of a double-screw extruder, inorganic glass fibers are sent into a side feeding hopper of the double-screw extruder, the temperature of the same-direction double-screw extruder is 240-250 ℃, the rotating speed of the same-direction double-screw extruder is 300r/min, and the product is obtained through extrusion molding.
Comparative example 1
A hydrolysis-resistant PPO alloy material is different from example 1 in that the raw material does not contain epoxy modified silicone resin, namely the epoxy modified silicone resin is used in an amount of 0.
Comparative example 2
A hydrolysis resistant PPO alloy material differs from example 1 in that the raw material is replaced by an equal mass of silicone (not epoxy modified) instead of epoxy modified silicone.
The silicone (not epoxy modified) was methylphenyl hydrogen-containing silicone IOTA207.
Blank examples
The PPO material is obtained by melt molding the same PPO resin as in the raw material of example 1.
The PPO alloy materials obtained in example 1 and comparative examples 1 to 2 and the PPO of the blank were tested for tensile strength, impact resistance, water absorption, hydrolysis, strength, toughness, water absorption and hydrolysis resistance.
Tensile strength: the test was carried out according to the measurement of the tensile properties of GB/T1040 plastics, the sample type being type II samples, spline dimensions (mm): 115 (length) × (6±0.04) (width of the middle parallel portion) ×2 (thickness), and the stretching speed was 200mm/min.
Impact resistance: according to the following: GB/T1451-2005.
Water absorption: testing was performed according to GB/T1034-2008.
Hydrolysis resistance: preparing a sample with corresponding specification according to the detection requirements of tensile strength and impact resistance, immersing the sample in water, heating to 135 ℃, preserving heat and immersing for 45 hours, taking out and drying for 2 hours at 120 ℃, taking out and naturally cooling to room temperature within 30 minutes, carrying out the detection of tensile strength and impact resistance again, and bringing the obtained result into a formula: hydrolysis retention = post-hydrolysis detection result/unhydrolyzed sample detection result 100%, resulting in a hydrolysis retention rate, the greater the hydrolysis retention, the better the hydrolysis resistance.
The results of the detection are shown in the following table.
TABLE 1 PPO alloy materials test results Table for example 1 and comparative examples 1 to 2
As is clear from Table 1, since the impact resistance of each of examples 1 and comparative examples 1 to 2 is superior to that of the blank examples, it is clear that a PPO alloy excellent in toughness can be obtained by blending a PA resin into a PPO resin.
As can be seen from comparative examples 1 and 1-2, the epoxy-modified silicone resin is added in example 1, and on one hand, the epoxy-modified silicone resin has better water resistance than the PA resin component resin, and the addition of the epoxy-modified silicone resin can reduce the water absorption of PPO alloy; on the other hand, the PPO alloy obtained by the application has residual epoxy groups, when water permeates the PPO alloy, the epoxy groups react with water to open loops before PA resin components react with water, so that hydrolysis of the PA resin components is slowed down, the epoxy groups are reversely hydrolyzed along with the permeation of water and react with amino groups and carboxyl groups generated by the hydrolysis of the PA resin components after the opening loops, new crosslinking is formed, the waterproofness of the PA resin components is improved, and the strength reduction caused by the hydrolysis of the PA resin components is compensated;
in contrast, the silicone resin was not added in comparative example 1, and the silicone resin added in comparative example 1 did not contain an epoxy group, so that the water absorption and hydrolysis resistance of comparative examples 1 to 2 were significantly weaker than those of example 1.
The PPO alloy obtained by the application needs to contain residual epoxy groups, so the use amount of the epoxy modified silicone resin is critical to the application.
Examples 2 to 5
The hydrolysis-resistant PPO alloy material is different from the PPO alloy material in example 1 in the weight parts of raw material proportion, and the weight parts are shown in the following table.
TABLE 2 raw materials proportioning Table for examples 2 to 5
| Unit/kg | Example 2 | Example 3 | Example 4 | Example 5 |
| PPO resin | 118 | 118 | 118 | 118 |
| PA resin | 40.6 | 40.6 | 40.6 | 40.6 |
| Maleic anhydride grafted PPO | 9.3 | 9.3 | 9.3 | 9.3 |
| Inorganic glass fiber | 43.7 | 43.7 | 43.7 | 43.7 |
| Epoxy modified silicone resin (based on solid content) | 6 | 7.8 | 8.9 | 10 |
| Modified mica powder | 6.7 | 6.7 | 6.7 | 6.7 |
Examples 6 to 10
The hydrolysis-resistant PPO alloy material is different from the PPO alloy material in example 1 in the weight parts of raw material proportion, and the weight parts are shown in the following table.
Table 3. Raw materials ratios of examples 6 to 10
| Unit/kg | Example 6 | Example 7 | Example 8 | Example 9 |
| PPO resin | 118 | 118 | 118 | 118 |
| PA resin | 22.4 | 22.4 | 22.4 | 22.4 |
| Maleic anhydride grafted PPO | 9.3 | 9.3 | 9.3 | 9.3 |
| Inorganic glass fiber | 43.7 | 43.7 | 43.7 | 43.7 |
| Epoxy modified silicone resin (based on solid content) | 3 | 4.9 | 6.1 | 7 |
| Modified mica powder | 6.7 | 6.7 | 6.7 | 6.7 |
Examples 10 to 13
The hydrolysis-resistant PPO alloy material is different from the PPO alloy material in example 1 in the weight parts of raw material proportion, and the weight parts are shown in the following table.
Table 4. Raw materials ratios of examples 10 to 13
The PPO alloy materials of examples 2 to 13 were tested for water absorption and hydrolysis resistance, and the test results are shown in the following table.
TABLE 5 PPO alloy materials of examples 2 to 13 were examined for their water absorption and hydrolysis resistance
As can be seen from Table 5, the PPO alloy materials of examples 3 to 4, examples 7 to 8 and examples 11 to 12 are superior in water resistance to the PPO alloy materials of example 2, example 5, example 6, example 9, example 10 and example 13, so that the relationship between the amount of PA resin and the amount of epoxy-modified silicone resin in the PPO alloy material in the present application affects the effect of improving the PPO alloy material by the epoxy-modified silicone resin in the present application.
Examples 14 to 17
The hydrolysis-resistant PPO alloy material is different from the PPO alloy material in example 1 in the weight parts of raw material proportion, and the weight parts are shown in the following table.
TABLE 6 raw materials proportioning Table for examples 14 to 17
The PPO alloy materials of examples 14 to 17 were examined for hydrolysis resistance, and the results are shown in the following table.
TABLE 7 PPO alloy materials detection results Table for examples 14 to 17
As can be seen from Table 7, the hydrolysis resistance of examples 14 and 15 is better than examples 16 to 17, and the change in the relation between the amount of PO resin and the amount of epoxy-modified silicone resin also affects the hydrolysis resistance of the PPO alloy material, but the influence is significantly weaker than the relation between the amounts of PA resin and epoxy-modified silicone resin, and the PPO resin is increased due to the fact that PPO resin is less hydrolyzed than PA resin according to the analysis with a high probability.
Thus, as can be seen from tables 5 and 7, in examples 1 to 13, at different PA resin usage levels for the same PPO resin usage level, the addition of the appropriate epoxy-modified silicic acid resin in the present application can achieve an effective and significant improvement in the water resistance and hydrolysis resistance of the PPO resin alloy material.
The effect of the relation of the amounts of PA resin and epoxy-modified silicone resin was thus further investigated, some of which were as follows.
Examples 18 to 21
The hydrolysis-resistant PPO alloy material is different from the PPO alloy material in example 1 in the weight parts of raw material proportion, and the weight parts are shown in the following table.
TABLE 8 raw materials proportioning Table for examples 18-21
| Unit/kg | Example 18 | Example 19 | Example 20 | Example 21 |
| PPO resin | 108 | 110 | 115 | 110 |
| PA resin | 17.4 | 16.8 | 18.9 | 18.9 |
| Maleic anhydride grafted PPO | 9.3 | 9.3 | 9.3 | 9.3 |
| Inorganic glass fiber | 43.7 | 43.7 | 43.7 | 43.7 |
| Epoxy modified silicone resin (based on solid content) | 7.8 | 7.8 | 8.9 | 8.9 |
| Modified mica powder | 3.8 | 4.6 | 8.1 | 8.1 |
The PPO alloy materials of examples 18 to 21 were examined for hydrolysis resistance, and the results are shown in the following table.
Table 9 PPO alloy materials of examples 18 to 21 were examined
As can be seen from Table 9, the PPO alloy materials of examples 18 to 21 were all excellent in hydrolysis resistance.
In the application, the dosage ratio of PPO resin to PA resin to epoxy modified silicone resin (calculated by solid content) is (98-121): (4.8-40.6): (2.1-8.9), and the epoxy modified silicone resin is preferably used in an amount of 19-75 wt% of the PA resin.
Example 22
A hydrolysis resistant PPO alloy material which differs from example 1 in that the epoxy modified silicone resin is epoxy modified silicone resin 2.
Example 23
A hydrolysis resistant PPO alloy material which differs from example 1 in that the epoxy modified silicone resin is epoxy modified silicone resin 3.
Example 24
A hydrolysis resistant PPO alloy material which differs from example 1 in that the PA resin is PA66.
Example 25
A hydrolysis resistant PPO alloy material which differs from example 1 in that the PA resin is PA6.
Example 26
A hydrolysis-resistant PPO alloy material is different from example 1 in that modified mica powder is not added.
Example 27
A hydrolysis-resistant PPO alloy material is different from example 1 in that the fineness distribution of modified mica powder is 1-5 μm.
Example 28
A hydrolysis-resistant PPO alloy material is different from example 1 in that the fineness distribution of modified mica powder is 100-150 μm.
The PPO alloy materials obtained in examples 22 to 28 were subjected to water absorption test and hydrolysis resistance test, and the test results are shown below.
Table 10 PPO alloy materials test results Table of examples 22 to 28
In combination with tables 1 and 10, examples 1 and 22 to 23 have low water absorption and are significantly superior to comparative examples 1 to 2 in hydrolysis resistance, so that the epoxy-modified silicone resins 0.05 to 0.09 used in the present application can be used.
The PA resins used in this application may also be PA6 and PA66, with low water absorption and significantly better hydrolysis resistance than comparative examples 1-2 in examples 1, 24-25.
The water absorption of the embodiment 1 is lower than that of the embodiments 26-28, and the hydrolysis resistance of the embodiment 1 is better than that of the embodiments 26-28, so that the modified mica powder soaked by adding the calcium hydroxide solution is easy to react with calcium hydroxide to produce calcium silicate at the position of the fracture of the surface crack, and the crack is blocked; meanwhile, the strength of the mica powder is enhanced, so that the water-resisting property and strength of the obtained mica powder are improved, and after the mica powder is further mixed into the PPO alloy material, the water-absorbing property and hydrolysis resistance of the mica powder can be remarkably reduced, and when the fineness distribution of the modified mica powder is 10-50 mu m, the water-absorbing property and hydrolysis resistance of the PPO alloy material are reduced and improved.
The present embodiment is only for explanation of the present invention and is not to be construed as limiting the present invention, and modifications to the present embodiment, which may not creatively contribute to the present invention as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present invention.
Claims (8)
1. A hydrolysis-resistant PPO alloy material is characterized in that: the material comprises the following raw materials in parts by weight:
98-121 parts of PPO resin,
4.8-40.6 parts of PA resin,
2.9 to 10.6 parts of maleic anhydride grafted PPO,
9.6-50.3 parts of inorganic glass fiber,
2.1-8.9 parts of epoxy modified silicone resin (calculated by solid content), and the epoxy value is 0.05-0.09.
2. The hydrolysis-resistant PPO alloy material of claim 1, wherein: the PA resin is one of PA6, PA66 and PA6/66.
3. The hydrolysis-resistant PPO alloy material of claim 2, wherein: the PA resin is PA6/66.
4. The hydrolysis-resistant PPO alloy material of claim 1, wherein the epoxy modified silicone resin has an epoxy value of 0.08-0.09.
5. The hydrolysis-resistant PPO alloy material according to claim 1, wherein the epoxy modified silicone resin is used in an amount of not less than 19-75wt% of the PA resin.
6. The hydrolysis-resistant PPO alloy material according to claim 1, which is characterized by further comprising 4.8-8.1 parts of mica powder soaked in calcium hydroxide solution.
7. The hydrolysis-resistant PPO alloy material according to claim 1, wherein the mica powder fineness distribution is 10-50 μm.
8. The method for preparing the high-strength hydrolysis-resistant PPO alloy material as claimed in any one of claims 1 to 7, which is characterized by comprising the following steps:
s1: accurately weighing raw materials according to the proportion;
s2: adding maleic anhydride grafted PPO, PPO, PA resin into a double-screw extruder, extruding and granulating to obtain matrix granules;
s3, adding the matrix granules and the rest of other raw materials except the inorganic glass fibers into a stirring barrel, and stirring and uniformly mixing to obtain a mixture;
s4: and (3) sending the mixture into a main feeding hopper of a double-screw extruder, sending inorganic glass fibers into a side feeding hopper of the double-screw extruder, and performing extrusion molding to obtain the product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311852745.6A CN117777700A (en) | 2023-12-29 | 2023-12-29 | Hydrolysis-resistant PPO alloy material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311852745.6A CN117777700A (en) | 2023-12-29 | 2023-12-29 | Hydrolysis-resistant PPO alloy material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117777700A true CN117777700A (en) | 2024-03-29 |
Family
ID=90390631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311852745.6A Pending CN117777700A (en) | 2023-12-29 | 2023-12-29 | Hydrolysis-resistant PPO alloy material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117777700A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118063957A (en) * | 2024-04-17 | 2024-05-24 | 山东祥龙新材料股份有限公司 | Flexible hydrolysis-resistant extrusion polyamide material, preparation method thereof and nylon tube |
-
2023
- 2023-12-29 CN CN202311852745.6A patent/CN117777700A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN118063957A (en) * | 2024-04-17 | 2024-05-24 | 山东祥龙新材料股份有限公司 | Flexible hydrolysis-resistant extrusion polyamide material, preparation method thereof and nylon tube |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3392290B1 (en) | Polyamide moulding material and molded bodies made from same | |
| CN117777700A (en) | Hydrolysis-resistant PPO alloy material and preparation method thereof | |
| CN108117726B (en) | Glass fiber reinforced refrigerant-resistant PBT resin composition and preparation method thereof | |
| CN106905674B (en) | A kind of Flame-retardant PET and PC composite material and preparation method | |
| US4187207A (en) | Flameproofed polyamide containing red phosphorous | |
| CN104231575A (en) | Halogen-free and phosphorus-free PBT enhanced composite material and preparation method thereof | |
| CN111484719A (en) | High-impact-resistance flame-retardant reinforced polycarbonate composite material and preparation method thereof | |
| CN113444269A (en) | Low-warpage good-appearance glass fiber reinforced polypropylene composite material and preparation method thereof | |
| CN102911482A (en) | High-strength basalt-reinforced PET (polyethylene terephthalate) composite material and preparation method thereof | |
| CN109749372A (en) | A kind of fire-retardant reinforced PBT composite material and preparation method thereof | |
| CN102492268A (en) | Alkali resistance glass fiber reinforced thermoplasticity polyester composite material and preparation method thereof | |
| CN111484722A (en) | High-impact-resistance flame-retardant reinforced PC/ABS alloy material and preparation method thereof | |
| CN101134839B (en) | Flame-proof glass fibre reinforced polycarbonate material and method for making same | |
| CN116790075A (en) | Weather-resistant PVC plastic particle and preparation method thereof | |
| CN101469105B (en) | Black sunlight-resistant glass fiber reinforced PBT composite material and preparation thereof | |
| CN111592720A (en) | Special polypropylene modified material for storage battery shell and preparation method thereof | |
| CN112029260B (en) | Fibrilia-reinforced PC/ABS composite material, and preparation method and application thereof | |
| CN113956651A (en) | High-strength low-shrinkage nylon material for flange plate and preparation method thereof | |
| CN112795094A (en) | PP alloy material capable of releasing negative oxygen ions and preparation method and application thereof | |
| CN102558666A (en) | Ceramic fiber reinforced polypropylene complex and preparation method thereof | |
| CN113045892A (en) | Flame-retardant nylon 66 material and preparation method thereof | |
| CN115093682B (en) | Glass fiber reinforced PET composite material and preparation method thereof | |
| CN114196169B (en) | PC/PET composite material and preparation method thereof | |
| CN113845760B (en) | Low-floating-fiber reinforced PBT/PET alloy composition and preparation method and application thereof | |
| CN114644822B (en) | PC/PBT alloy with good appearance and good spraying talcum powder filling, and preparation and application 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 |