CN113292813A - High-impact-resistance polyformaldehyde material and preparation method thereof - Google Patents
High-impact-resistance polyformaldehyde material and preparation method thereof Download PDFInfo
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- CN113292813A CN113292813A CN202110428337.2A CN202110428337A CN113292813A CN 113292813 A CN113292813 A CN 113292813A CN 202110428337 A CN202110428337 A CN 202110428337A CN 113292813 A CN113292813 A CN 113292813A
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- polyformaldehyde material
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- 229920006324 polyoxymethylene Polymers 0.000 title claims abstract description 60
- 239000000463 material Substances 0.000 title claims abstract description 49
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims abstract description 39
- 239000003963 antioxidant agent Substances 0.000 claims abstract description 18
- 230000003078 antioxidant effect Effects 0.000 claims abstract description 18
- 239000000314 lubricant Substances 0.000 claims abstract description 18
- 239000004970 Chain extender Substances 0.000 claims abstract description 17
- 239000007822 coupling agent Substances 0.000 claims abstract description 16
- 239000002250 absorbent Substances 0.000 claims abstract description 13
- 230000002745 absorbent Effects 0.000 claims abstract description 13
- 229930040373 Paraformaldehyde Natural products 0.000 claims abstract description 11
- -1 polyoxymethylene Polymers 0.000 claims abstract description 11
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical class [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims abstract description 3
- 238000001125 extrusion Methods 0.000 claims description 8
- 238000005469 granulation Methods 0.000 claims description 8
- 230000003179 granulation Effects 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 7
- 239000003365 glass fiber Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 229920005749 polyurethane resin Polymers 0.000 abstract description 5
- 238000006757 chemical reactions by type Methods 0.000 abstract description 4
- 125000000524 functional group Chemical group 0.000 abstract description 3
- 238000012986 modification Methods 0.000 abstract description 3
- 230000004048 modification Effects 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000012752 auxiliary agent Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229920006351 engineering plastic Polymers 0.000 description 2
- 239000004611 light stabiliser Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000012779 reinforcing material Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000012745 toughening agent Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K7/00—Use of ingredients characterised by shape
- C08K7/02—Fibres or whiskers
- C08K7/04—Fibres or whiskers inorganic
- C08K7/14—Glass
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- 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 relates to the technical field of reinforced material modification, in particular to a high-impact-resistance polyformaldehyde material and a preparation method thereof, wherein the high-impact-resistance polyformaldehyde material comprises the following components in parts by weight: polyoxymethylene: 90 to 100 percent of the total weight of the modified phenolic resin, 0.1 to 0.5 percent of the coupling agent, 0.1 to 5 percent of the lubricant, 0.1 to 5 percent of the antioxidant, 0.1 to 2 percent of the chain extender and 0.1 to 0.5 percent of the formaldehyde absorbent. The moisture reaction type polyurethane resin is adopted, the coupling agent, the lubricating agent, the antioxidant and the chain extender are matched, and a plurality of active functional groups of the chain extender are fully utilized to graft the polyformaldehyde with small molecular weight onto a macromolecular chain, so that the polyformaldehyde material with high impact resistance of the macromolecular chain is obtained, the impact resistance strength of the polyformaldehyde material is further improved on the basis that the material has toughness, and the application range of the polyformaldehyde material is widened.
Description
Technical Field
The invention relates to the technical field of reinforcing material modification, in particular to a high-impact-resistance polyformaldehyde material and a preparation method thereof.
Background
In the prior art, the invention patent with the publication number of CN201710859578.6 and the name of polyformaldehyde material and the preparation method thereof can solve the odor problem of polyformaldehyde in the processing and storing processes, and simultaneously endows the material with good toughness and fluidity, is environment-friendly and has higher application value; in the invention patent with the publication number of CN200610022223.3 and the name of high-toughness wear-resistant self-lubricating polyformaldehyde material and the preparation method thereof, moisture reaction type polyurethane resin is used and matched with auxiliary agents such as alumina powder, antioxidant, light stabilizer, lubricant and the like, and the PUR toughening and reinforcing modified polyformaldehyde material is prepared by carrying out double-screw mixing reaction, extrusion and granulation. The product has good toughness, good wear resistance and good thermal stability, and can be widely applied to various high-performance engineering plastic products; in the invention patent with the publication number of CN202010199369.5 and the name of PUR toughening and reinforcing modified polyformaldehyde material and the preparation method thereof, moisture reaction type polyurethane resin is used and matched with auxiliary agents such as alumina powder, antioxidant, light stabilizer, lubricant and the like, and the PUR toughening and reinforcing modified polyformaldehyde material is prepared by carrying out double-screw mixing reaction, extrusion and granulation. The product has good toughness, good wear resistance and good thermal stability, and can be widely applied to various high-performance engineering plastic products.
However, the prior patents mentioned above all relate to modification of polyoxymethylene materials, and toughening agents are used to toughen polyoxymethylene materials, while the toughness leads to reduction of impact resistance of the materials, and the application range is limited, so the invention provides a high impact resistant polyoxymethylene material and a preparation method thereof to solve the above problems.
Disclosure of Invention
The invention aims to solve the defect of short service life in the prior art, and provides a high-impact-resistance polyformaldehyde material and a preparation method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
a high-impact-resistance polyformaldehyde material comprises the following components in parts by weight: polyoxymethylene: 90 to 100 percent of the total weight of the modified phenolic resin, 0.1 to 0.5 percent of the coupling agent, 0.1 to 5 percent of the lubricant, 0.1 to 5 percent of the antioxidant, 0.1 to 2 percent of the chain extender and 0.1 to 0.5 percent of the formaldehyde absorbent.
A preparation method of a high-impact-resistance polyformaldehyde material comprises the following steps:
s1, adding polyformaldehyde, a coupling agent, a lubricant, an antioxidant, a chain extender and a formaldehyde absorbent into a high-speed mixer according to the weight percentage of the components, and premixing at high speed;
and S2, adding the mixture obtained in the step S1 from a feed opening of a screw extruder, adding long glass fibers into the middle section of the screw extruder, and then performing melt extrusion granulation to obtain a finished polyformaldehyde material.
Preferably, in the step S2, the processing temperature is 170-200 ℃, the screw rotation speed is 250-350 r/min, and the pressure of the extruder is 10-15 MPa.
The invention has the beneficial effects that:
compared with the prior art, the invention adopts the moisture reaction type polyurethane resin, matches with the coupling agent, the lubricant, the antioxidant and the chain extender, and makes full use of a plurality of active functional groups of the chain extender to graft the polyformaldehyde with small molecular weight onto a macromolecular chain, thereby obtaining the polyformaldehyde material with high impact resistance of the macromolecular chain, further improving the impact resistance strength of the polyformaldehyde material on the basis of enabling the material to have toughness, and widening the application range of the polyformaldehyde material.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.
Example 1:
the high impact resistant polyformaldehyde material of the embodiment comprises the following components in parts by weight: polyoxymethylene: 90 percent, 0.1 percent of coupling agent, 0.1 percent of lubricant, 0.1 percent of antioxidant, 0.1 percent of chain extender and 0.1 percent of formaldehyde absorbent.
A preparation method of a high-impact-resistance polyformaldehyde material comprises the following steps:
s1, adding polyformaldehyde, a coupling agent, a lubricant, an antioxidant, a chain extender and a formaldehyde absorbent into a high-speed mixer according to the weight percentage of the components, and premixing at high speed;
and S2, adding the mixture obtained in the step S1 from a feed opening of a screw extruder, wherein the processing temperature is 170 ℃, the screw rotating speed is 250r/min, the pressure of the extruder is 10MPa, adding long glass fibers into the middle section of the double screw extruder, and then performing melt extrusion granulation to obtain a polyformaldehyde material finished product I.
Example 2:
the high impact resistant polyformaldehyde material of the embodiment comprises the following components in parts by weight: polyoxymethylene: 95 percent of coupling agent, 0.3 percent of lubricant, 2 percent of antioxidant, 2.5 percent of chain extender and 0.3 percent of formaldehyde absorbent.
A preparation method of a high-impact-resistance polyformaldehyde material comprises the following steps:
s1, adding polyformaldehyde, a coupling agent, a lubricant, an antioxidant, a chain extender and a formaldehyde absorbent into a high-speed mixer according to the weight percentage of the components, and premixing at high speed;
and S2, adding the mixture obtained in the step S1 from a feed opening of a screw extruder, wherein the processing temperature is 180 ℃, the screw rotating speed is 300r/min, the pressure of the extruder is 13MPa, adding long glass fibers into the middle section of the double-screw extruder, and then performing melt extrusion granulation to obtain a second polyformaldehyde material finished product.
Example 3:
the high impact resistant polyformaldehyde material of the embodiment comprises the following components in parts by weight: polyoxymethylene: 100 percent of coupling agent, 0.5 percent of lubricant, 5 percent of antioxidant, 2 percent of chain extender and 0.5 percent of formaldehyde absorbent.
A preparation method of a high-impact-resistance polyformaldehyde material comprises the following steps:
s1, adding polyformaldehyde, a coupling agent, a lubricant, an antioxidant, a chain extender and a formaldehyde absorbent into a high-speed mixer according to the weight percentage of the components, and premixing at high speed;
and S2, adding the mixture obtained in the step S1 from a feed opening of a screw extruder, wherein the processing temperature is 200 ℃, the screw rotating speed is 350r/min, the pressure of the extruder is 15MPa, adding long glass fibers into the middle section of the double screw extruder, and then performing melt extrusion granulation to obtain a third polyformaldehyde material finished product.
Comparative example:
the high-impact-resistance polyformaldehyde material of the comparative example comprises the following components in parts by weight: polyoxymethylene: 100 percent, 0.5 percent of coupling agent, 5 percent of lubricant, 5 percent of antioxidant and 0.5 percent of formaldehyde absorbent.
A preparation method of a high-impact-resistance polyformaldehyde material comprises the following steps:
s1, adding the polyformaldehyde, the coupling agent, the lubricant, the antioxidant and the formaldehyde absorbent into a high-speed mixer according to the weight percentage, and premixing at high speed;
and S2, adding the mixture obtained in the step S1 from a feed opening of a screw extruder, wherein the processing temperature is 200 ℃, the screw rotating speed is 350r/min, the pressure of the extruder is 15MPa, adding long glass fibers into the middle section of the double screw extruder, and then performing melt extrusion granulation to obtain a fourth polyformaldehyde material finished product.
The high impact polyoxymethylene materials obtained in the foregoing examples 1 to 3 and comparative example were subjected to a performance test, and the test data are shown in table 1 below:
TABLE 1
It can be seen from table 1 that, in the invention, the moisture reactive polyurethane resin is adopted, the coupling agent, the lubricant, the antioxidant and the chain extender are matched, and the plurality of active functional groups of the chain extender are fully utilized to graft the polyformaldehyde with a small molecular weight onto the macromolecular chain, so that the polyformaldehyde material with a macromolecular chain and high impact resistance is obtained, on the basis that the material has toughness, the impact resistance strength of the polyformaldehyde material is further improved, and the application range of the polyformaldehyde material is widened.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (3)
1. A high-impact-resistance polyformaldehyde material is characterized by comprising the following components in parts by weight: polyoxymethylene: 90 to 100 percent of the total weight of the modified phenolic resin, 0.1 to 0.5 percent of the coupling agent, 0.1 to 5 percent of the lubricant, 0.1 to 5 percent of the antioxidant, 0.1 to 2 percent of the chain extender and 0.1 to 0.5 percent of the formaldehyde absorbent.
2. A preparation method of a high-impact-resistance polyformaldehyde material is characterized by comprising the following steps:
s1, adding polyformaldehyde, a coupling agent, a lubricant, an antioxidant, a chain extender and a formaldehyde absorbent into a high-speed mixer according to the weight percentage of the components, and premixing at high speed;
and S2, adding the mixture obtained in the step S1 from a feed opening of a screw extruder, adding long glass fibers into the middle section of the screw extruder, and then performing melt extrusion granulation to obtain a finished polyformaldehyde material.
3. The polyformaldehyde material with high impact resistance as claimed in claim 1, wherein in step S2, the processing temperature is 170-200 ℃, the screw rotation speed is 250-350 r/min, and the pressure of the extruder is 10-15 MPa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110428337.2A CN113292813A (en) | 2021-04-21 | 2021-04-21 | High-impact-resistance polyformaldehyde material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110428337.2A CN113292813A (en) | 2021-04-21 | 2021-04-21 | High-impact-resistance polyformaldehyde material and preparation method thereof |
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| CN113292813A true CN113292813A (en) | 2021-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110428337.2A Pending CN113292813A (en) | 2021-04-21 | 2021-04-21 | High-impact-resistance polyformaldehyde material and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113831681A (en) * | 2021-10-19 | 2021-12-24 | 重庆云天化天聚新材料有限公司 | Low-release polyformaldehyde and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101759955A (en) * | 2009-11-26 | 2010-06-30 | 苏州市科创聚合物有限公司 | High wear-resistant self-lubricating polyoxymethylene and process for preparing same |
| CN102898772A (en) * | 2012-11-05 | 2013-01-30 | 科创聚合物(苏州)有限公司 | Polyformaldehyde with high abrasion resistance and preparation technology thereof |
| CN104672779A (en) * | 2015-03-04 | 2015-06-03 | 安徽科聚新材料有限公司 | POM (polyoxymethylene) material and preparation method thereof |
| CN111253708A (en) * | 2020-03-20 | 2020-06-09 | 高鼎精细化工(昆山)有限公司 | PUR toughening and reinforcing modified polyformaldehyde material and preparation method thereof |
-
2021
- 2021-04-21 CN CN202110428337.2A patent/CN113292813A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101759955A (en) * | 2009-11-26 | 2010-06-30 | 苏州市科创聚合物有限公司 | High wear-resistant self-lubricating polyoxymethylene and process for preparing same |
| CN102898772A (en) * | 2012-11-05 | 2013-01-30 | 科创聚合物(苏州)有限公司 | Polyformaldehyde with high abrasion resistance and preparation technology thereof |
| CN104672779A (en) * | 2015-03-04 | 2015-06-03 | 安徽科聚新材料有限公司 | POM (polyoxymethylene) material and preparation method thereof |
| CN111253708A (en) * | 2020-03-20 | 2020-06-09 | 高鼎精细化工(昆山)有限公司 | PUR toughening and reinforcing modified polyformaldehyde material and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113831681A (en) * | 2021-10-19 | 2021-12-24 | 重庆云天化天聚新材料有限公司 | Low-release polyformaldehyde and preparation method thereof |
| CN113831681B (en) * | 2021-10-19 | 2023-08-11 | 重庆云天化天聚新材料有限公司 | Low-release polyformaldehyde and preparation method thereof |
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Application publication date: 20210824 |