CN110373025A - A kind of toughening model+based composites - Google Patents
A kind of toughening model+based composites Download PDFInfo
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- CN110373025A CN110373025A CN201910763643.4A CN201910763643A CN110373025A CN 110373025 A CN110373025 A CN 110373025A CN 201910763643 A CN201910763643 A CN 201910763643A CN 110373025 A CN110373025 A CN 110373025A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L79/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen with or without oxygen or carbon only, not provided for in groups C08L61/00 - C08L77/00
- C08L79/04—Polycondensates having nitrogen-containing heterocyclic rings in the main chain; Polyhydrazides; Polyamide acids or similar polyimide precursors
- C08L79/08—Polyimides; Polyester-imides; Polyamide-imides; Polyamide acids or similar polyimide precursors
- C08L79/085—Unsaturated polyimide precursors
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2207/00—Properties characterising the ingredient of the composition
- C08L2207/06—Properties of polyethylene
- C08L2207/068—Ultra high molecular weight polyethylene
Abstract
The present invention relates to bimaleimide resin base composite material preparation technical fields, and a kind of toughening model+based composites are disclosed, the raw material including following parts by weight proportion: bimaleimide resin (BMI), 20~30 parts of the micron-sized polyurethane (PU) of 60~75 parts of average grain diameter 38um;The preparation method of above-mentioned toughening model+based composites is uniformly mixed above-mentioned raw materials the following steps are included: first passing through mechanical stirring, again by uniformly mixed compound material, hot pressing is kept in the case where temperature is 330~350 DEG C, pressure is 35~45MPa, obtains toughening model+based composites.The present invention solves current existing bimaleimide resin base body, itself there is technical issues that crosslink density is high, easy to crack, brittleness greatly with.
Description
Technical field
The present invention relates to bimaleimide resin base composite material preparation technical field, specially a kind of toughening span comes
Imide resin based composites.
Background technique
It is Material synthesis that bimaleimide resin (BMI), which is with maleic anhydride, it belongs to polyimides major class, is gathered
Acid imide can be divided into two classes according to reaction process: one kind is condensed type polyimides, it has very high heat resistance and good
Inoxidizability, but have the evolution of low molecular weight volatile object during the reaction, it can make to contain hole in cured product, thus in aviation work
Less use in journey;Another kind of is addition polyimide, the mutual addition of monomer in reaction process and polymerize, generally without low molecule
Object evolution, is used for high temperature resistant region in aerospace industry.
BMI is a kind of polymer with double bond active end group, and heating cross-linkable solidifying is heat-resistant resin, as resistance to
The resin matrix of high temperature is considered as one of most promising aerospace material.However bimaleimide resin sheet
Body haves the defects that crosslink density is high, easy to crack, brittleness is poor with bearing property greatly, this makes it be unable to satisfy aerospace field to material
Expect the requirement of mechanical performance.
Summary of the invention
(1) the technical issues of solving
In view of the deficiencies of the prior art, the present invention provides a kind of toughening model+based composites, solutions
It has determined current existing bimaleimide resin base body, there is crosslink densities high, easy to crack, brittleness itself is greatly and poor toughness
The technical issues of.
(2) technical solution
To achieve the above object, the invention provides the following technical scheme:
A kind of toughening model+based composites, the raw material including following parts by weight proportion: 60~75
Bimaleimide resin (BMI), 20~30 parts of the micron-sized polyurethane (PU) of the average grain diameter 38um of part;
The preparation method of above-mentioned toughening model+based composites is stirred the following steps are included: first passing through machinery
Mixing is uniformly mixed above-mentioned raw materials, then compound material that will be uniformly mixed, temperature be 330~350 DEG C, pressure be 35~
Hot pressing is kept under 45MPa, obtains toughening model+based composites.
Preferably, the bimaleimide resin base composite material further includes the raw material of following parts by weight proportion: 6~
Ultra-high molecular weight polyethylene (UHMWPE) powder of 10 parts of average grain diameter 250um.
Preferably, the bimaleimide resin base composite material further includes the raw material of following parts by weight proportion: 4 parts
Average grain diameter 75um polystyrene (PS).
Preferably, the average grain diameter of the polyurethane (PU) is 38um.
(3) beneficial technical effect
Compared with prior art, the present invention has following beneficial technical effect:
The present invention passes through elastic material polyurethane resin (PU) and bimaleimide resin that toughness itself is fabulous
(BMI) progress is compound, and using high-temperature thermo-compression formation technique, toughening model+based composites are prepared, should
Elastic material polyurethane resin (PU) in toughening model+based composites, which can be effectively reduced, to be solidified into
The brittleness of toughening model+based composites after type and can effectively absorbing external effect to composite wood
The impact force of material.
Specific embodiment
Raw material used in following embodiment is as follows:
Bimaleimide resin (BMI), average grain diameter 38um;
Polyurethane resin (PU), average grain diameter 38um;
Ultra-high molecular weight polyethylene (UHMWPE) powder, average grain diameter 250um;
Polystyrene (PS), average grain diameter 75um.
Embodiment one:
Toughening model+based composites include the raw material of following parts by weight proportion: 70 parts of average grain
The polyurethane (PU) of the bimaleimide resin (BMI) of diameter 38um, 30 parts of average grain diameter 38um;
The preparation methods of toughening model+based composites the following steps are included:
Step 1: by the bimaleimide resin (BMI) of 70 parts of average grain diameter 38um, 30 parts of average grain diameter 38um
Polyurethane resin (PU) be added in mixing apparatus of powdery row material together, by mechanical stirring make above-mentioned material be uniformly mixed;
Step 2: the compound material that will be uniformly mixed in step 1 keeps heat in the case where temperature is 330 DEG C, pressure is 40MPa
4h is pressed, later, is cooled down in the case where pressure is 40MPa, demoulding when temperature is down to 110 DEG C obtains bismaleimide tree
Resin-based composite.
Embodiment two:
Toughening model+based composites include the raw material of following parts by weight proportion: 65 parts of average grain
Bimaleimide resin (BMI), the polyurethane (PU) of 25 parts of average grain diameter 38um, 10 parts of average grain diameter of diameter 38um
Ultra-high molecular weight polyethylene (UHMWPE) powder of 250um;
The preparation methods of toughening model+based composites the following steps are included:
Step 1: by the bimaleimide resin (BMI) of 65 parts of average grain diameter 38um, 25 parts of average grain diameter 38um
Polyurethane (PU), 10 parts of average grain diameter 250um ultra-high molecular weight polyethylene (UHMWPE) powder to be added to powder together mixed
It attaches together in setting, is uniformly mixed above-mentioned material by mechanical stirring;
Step 2: the compound material that will be uniformly mixed in step 1 keeps heat in the case where temperature is 340 DEG C, pressure is 45MPa
4h is pressed, later, is cooled down in the case where pressure is 45MPa, demoulding when temperature is down to 110 DEG C obtains bismaleimide tree
Resin-based composite.
Embodiment three:
Toughening model+based composites include the raw material of following parts by weight proportion: 65 parts of average grain
Bimaleimide resin (BMI), the polyurethane (PU) of 25 parts of average grain diameter 38um, 6 parts of average grain diameter of diameter 38um
The polystyrene (PS) of ultra-high molecular weight polyethylene (UHMWPE) powder of 250um, 4 parts of average grain diameter 75um;
The preparation methods of toughening model+based composites the following steps are included:
Step 1: by the bimaleimide resin (BMI) of 65 parts of average grain diameter 38um, 25 parts of average grain diameter 38um
Polyurethane (PU), 6 parts of average grain diameter 250um ultra-high molecular weight polyethylene (UHMWPE) powder, 4 parts of average grain diameter 75um
Polystyrene (PS) be added in mixing apparatus of powdery row material together, by mechanical stirring make above-mentioned material be uniformly mixed;
Step 2: the compound material that will be uniformly mixed in step 1 keeps heat in the case where temperature is 350 DEG C, pressure is 35MPa
4h is pressed, later, is cooled down in the case where pressure is 35MPa, demoulding when temperature is down to 110 DEG C obtains bismaleimide tree
Resin-based composite.
Example IV:
Toughening model+based composites include the raw material of following parts by weight proportion: 75 parts of average grain
The polyurethane (PU) of the bimaleimide resin (BMI) of diameter 38um, 25 parts of average grain diameter 38um;
The preparation methods of toughening model+based composites the following steps are included:
Step 1: by the bimaleimide resin (BMI) of 75 parts of average grain diameter 38um, 25 parts of average grain diameter 38um
Polyurethane resin (PU) be added in mixing apparatus of powdery row material together, by mechanical stirring make above-mentioned material be uniformly mixed;
Step 2: the compound material that will be uniformly mixed in step 1 keeps heat in the case where temperature is 330 DEG C, pressure is 40MPa
4h is pressed, later, is cooled down in the case where pressure is 40MPa, demoulding when temperature is down to 110 DEG C obtains bismaleimide tree
Resin-based composite.
Embodiment five:
Toughening model+based composites include the raw material of following parts by weight proportion: 60 parts of average grain
Bimaleimide resin (BMI), the polyurethane (PU) of 30 parts of average grain diameter 38um, 10 parts of average grain diameter of diameter 38um
Ultra-high molecular weight polyethylene (UHMWPE) powder of 250um;
The preparation methods of toughening model+based composites the following steps are included:
Step 1: by the bimaleimide resin (BMI) of 60 parts of average grain diameter 38um, 30 parts of average grain diameter 38um
Polyurethane (PU), 10 parts of average grain diameter 250um ultra-high molecular weight polyethylene (UHMWPE) powder to be added to powder together mixed
It attaches together in setting, is uniformly mixed above-mentioned material by mechanical stirring;
Step 2: the compound material that will be uniformly mixed in step 1 keeps heat in the case where temperature is 340 DEG C, pressure is 45MPa
4h is pressed, later, is cooled down in the case where pressure is 45MPa, demoulding when temperature is down to 110 DEG C obtains bismaleimide tree
Resin-based composite.
Embodiment six:
Toughening model+based composites include the raw material of following parts by weight proportion: 70 parts of average grain
Bimaleimide resin (BMI), the polyurethane (PU) of 20 parts of average grain diameter 38um, 6 parts of average grain diameter of diameter 38um
The polystyrene (PS) of ultra-high molecular weight polyethylene (UHMWPE) powder of 250um, 4 parts of average grain diameter 75um;
The preparation methods of toughening model+based composites the following steps are included:
Step 1: by the bimaleimide resin (BMI) of 70 parts of average grain diameter 38um, 20 parts of average grain diameter 38um
Polyurethane (PU), 6 parts of average grain diameter 250um ultra-high molecular weight polyethylene (UHMWPE) powder, 4 parts of average grain diameter 75um
Polystyrene (PS) be added in mixing apparatus of powdery row material together, by mechanical stirring make above-mentioned material be uniformly mixed;
Step 2: the compound material that will be uniformly mixed in step 1 keeps heat in the case where temperature is 350 DEG C, pressure is 35MPa
4h is pressed, later, is cooled down in the case where pressure is 35MPa, demoulding when temperature is down to 110 DEG C obtains bismaleimide tree
Resin-based composite.
Claims (4)
1. a kind of toughening model+based composites, which is characterized in that the original including following parts by weight proportion
Material: bimaleimide resin (BMI), 20~30 parts of the micron-sized polyurethane of 60~75 parts of average grain diameter 38um
(PU);
The preparation method of above-mentioned toughening model+based composites is the following steps are included: first passing through mechanical stirring makes
Above-mentioned raw materials are uniformly mixed, then by uniformly mixed compound material, in the case where temperature is 330~350 DEG C, pressure is 35~45MPa
Hot pressing is kept, toughening model+based composites are obtained.
2. bimaleimide resin base composite material according to claim 1, which is characterized in that the bismaleimide
Polyimide resin based composites further include the raw material of following parts by weight proportion: the supra polymer of 6~10 parts of average grain diameter 250um
Weight northylen (UHMWPE) powder.
3. bimaleimide resin base composite material according to claim 1, which is characterized in that the bismaleimide
Polyimide resin based composites further include the raw material of following parts by weight proportion: the polystyrene (PS) of 4 parts of average grain diameter 75um.
4. bimaleimide resin base composite material according to claim 1, which is characterized in that the polyurethane (PU)
Average grain diameter be 38um.
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Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106336650A (en) * | 2016-08-23 | 2017-01-18 | 无锡市永亿精密铸造有限公司 | Composite material for ultrasonic humidifier |
CN107236438A (en) * | 2017-06-16 | 2017-10-10 | 湖南天爱农业科技有限公司 | A kind of agricultural machinery composite fire retardant coating and preparation method thereof |
-
2019
- 2019-08-19 CN CN201910763643.4A patent/CN110373025A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106336650A (en) * | 2016-08-23 | 2017-01-18 | 无锡市永亿精密铸造有限公司 | Composite material for ultrasonic humidifier |
CN107236438A (en) * | 2017-06-16 | 2017-10-10 | 湖南天爱农业科技有限公司 | A kind of agricultural machinery composite fire retardant coating and preparation method thereof |
Non-Patent Citations (3)
Title |
---|
F.C.坎贝尔: "《先进复合材料的制造工艺》", 31 December 2016 * |
李再峰等: "聚氨酯/酰亚胺复合材料的研究进展", 《高分子材料科学与工程》 * |
黄志雄等: "聚氨酯弹性体改性双马来酰亚胺树脂的研究", 《复合材料科学与工程》 * |
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Application publication date: 20191025 |