CN105754292A - Thermotropic liquid crystal polymer toughened and reinforced epoxy resin composition - Google Patents
Thermotropic liquid crystal polymer toughened and reinforced epoxy resin composition Download PDFInfo
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- CN105754292A CN105754292A CN201410778278.1A CN201410778278A CN105754292A CN 105754292 A CN105754292 A CN 105754292A CN 201410778278 A CN201410778278 A CN 201410778278A CN 105754292 A CN105754292 A CN 105754292A
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- 0 *c1ccc(*C(Oc(cc2)ccc2-c2ccccc2)=O)cc1* Chemical compound *c1ccc(*C(Oc(cc2)ccc2-c2ccccc2)=O)cc1* 0.000 description 2
Abstract
The invention provides a thermotropic liquid crystal polymer toughened and reinforced epoxy resin composition. The epoxy resin composition is prepared from, by weight, 100 parts of epoxy resin, 1-8 parts of a polyurethane liquid crystal polymer, 250-350 parts of alumina and 10-50 parts of an acid anhydride curing agent. The heat resistance of the epoxy resin is not reduced, and the impact toughness, the bending strength and modulus, the tensile strength and modulus, and the electrical performances of epoxy resin are improved to certain degrees.
Description
[technical field]
The present invention relates to a kind of insulating polymeric material, in particular to a kind of composition epoxy resin adding polyurethane-type TLCP.
[background technology]
Epoxy resin is a kind of important thermosetting resin, it has the advantages such as the mechanical performance of excellence, electrical insulation capability, chemical stability, high and low temperature resistance, it is used widely in fields such as electric insulation, transportation, space flight and aviation and matrix resins used for advanced composite material, but it is crisp to there is matter in it, the shortcomings such as fatigue durability, resistance to impact and resistance to cracking are poor, greatly limit it and develop application further in some field.Epoxy resin toughened method has a lot, such as: rubber toughened modified, Toughened With High Performance Thermoplastics modified, IPN interpenetrating networks modified, thermotropic liquid crystal is modified.But above-mentioned method of modifying all also exists various deficiency, for instance, rubber toughened modified epoxy due to when modified consumption more, cause that the thermostability of resin declines, there is the problem such as point mutually incomplete；Toughened With High Performance Thermoplastics epoxy resin is poor due to dissolubility and the mobility of thermoplastic resin, cause toughness reinforcing after resin system viscosity increase, cementability is deteriorated, and there is bigger processing difficulties when resin system is used as matrices of composite material；The rubber phase component of IPN is excessive, and hot strength, shear strength, bending strength all dramatic drop-offs, toughening effect is also poor.In above-mentioned various toughening modifying method, thermotropic liquid crystal flexibilizing epoxy is most application potential one method of modifying.It is characterized in: add a small amount of liquid crystal and just can play good toughening effect, and modified epoxy resin mechanical strength, electric property and thermostability all improve.Current Many researchers simply improves the mechanical property of simple ring epoxy resins with liquid crystal, is published in document and patent with the compound system of its modified epoxy Yu filler grain is not disclosed.
[summary of the invention]
Present invention aims to epoxy resin poor toughness, thermoplastic resin or liquid rubber toughening modifying and lose again the shortcoming of its electric property and thermostability, by epoxy resin+Al2O3+ anhydride system adds polyurethane-type TLCP, it is provided that a kind of collect the toughness reinforcing reinforced epoxy compositions that electric property, heat resistance are all good.
For achieving the above object, the technical solution used in the present invention is as follows:
The composition epoxy resin of the toughness reinforcing enhancing of a kind of TLCP, it is characterised in that described composition epoxy resin is to be prepared by by the following compositions of mass parts: epoxy resin 100 parts, polyurethane-type liquid crystal polymer 1-8 part, aluminium sesquioxide 250～350 parts and anhydride curing agent 10～50 parts.
Preferably, described epoxy resin is the HE4112 that Shanghai Xiong Run resin company limited produces.
Preferably, described polyurethane-type liquid crystal polymer is:
Preferably, described anhydride curing agent is the HH306 that Shanghai Xiong Run resin company limited produces.
Preferably, described aluminium sesquioxide is nanoscale or micron order or the mixture of the two.
Preferably, described composition epoxy resin is to be prepared by by the following compositions of mass parts: epoxy resin 100 parts, polyurethane-type liquid crystal polymer 1-8 part, aluminium sesquioxide 300 parts and anhydride curing agent 40 parts.
The preparation method of the composition epoxy resin of the toughness reinforcing enhancing of described TLCP, comprise the following steps: after epoxy resin heating is all melted to 110 DEG C, after being sequentially added into TLCP, aluminium sesquioxide and anhydride curing agent and stirring, it is poured in the mould being preheated to 110 DEG C～130 DEG C, after vacuumizing and defoaming 0.5～1.5 hour, it is warmed up to 120 DEG C～150 DEG C to solidify 6～9 hours so that it is naturally cool to room temperature, obtain described composition epoxy resin.
With immediate prior art ratio, the invention have the benefit that the shortcoming losing again its electric property and thermostability for epoxy resin poor toughness, thermoplastic resin or liquid rubber toughening modifying, by epoxy resin+Al2O3Adding polyurethane-type TLCP in+anhydride system, obtained composition epoxy resin, its impact flexibility, bending strength and modulus, hot strength and modulus, electric property all increase, and do not reduce its thermostability.
[detailed description of the invention]
Below in conjunction with embodiment, the present invention will be described in detail.
Embodiment 1
Embodiment 1
The Shanghai Xiong Run resin company limited adding 100 parts in beaker produces epoxy resin HE4112, and heating makes it all melt to 110 DEG C, is subsequently adding 3 parts of TLCPs, and the structural formula of described polyurethane-type liquid crystal polymer is:
Stirring is all dissolved in the epoxy to liquid crystal polymer, then 300 parts of Al2O3Adding in liquid crystalline epoxy mixture, stir, the anhydride curing agent HH306 being eventually adding 40 parts of Shanghai Xiong Run resin company limiteies productions continues to stir.Blend is poured in mould 110 DEG C preheated, vacuumizing and defoaming 1 hour, closes baking oven after being warmed up to 150 DEG C of solidifications 8 hours so that it is naturally cool to room temperature, obtain composition epoxy resin.The performance test of gained composition epoxy resin is as shown in table 1.
Embodiment 2
The addition of TLCP is 5 parts, and the structural formula of described polyurethane-type liquid crystal polymer is:
The addition of other compositions and operation are such as embodiment 1.The performance test of gained composition epoxy resin is as shown in table 1.
Embodiment 3
The addition of TLCP is 7 parts, and the structural formula of described polyurethane-type liquid crystal polymer is:
The addition of other compositions and operation are such as embodiment 1.The performance test of gained composition epoxy resin is as shown in table 1.
Embodiment 4
Affiliated epoxy resin is 100 parts, and polyurethane-type liquid crystal polymer is 8 parts, Al2O3Being 320 parts, anhydride curing agent is 20 parts, and other operations are such as embodiment 1.
Embodiment 5
Affiliated epoxy resin is 100 parts, and polyurethane-type liquid crystal polymer is 2 parts, Al2O3Being 250 parts, anhydride curing agent is 50 parts, and other operations are such as embodiment 1.
Embodiment 6
Affiliated epoxy resin 100 parts, polyurethane-type liquid crystal polymer is 6 parts, Al2O3Being 350 parts, anhydride curing agent is 10 parts, and other operations are such as embodiment 1.
Embodiment 7
Affiliated epoxy resin 100 parts, polyurethane-type liquid crystal polymer is 1 part, Al2O3Being 280 parts, anhydride curing agent is 30 parts, and other operations are such as embodiment 1.
Embodiment 8
Affiliated epoxy resin 100 parts, polyurethane-type liquid crystal polymer is 5 parts, Al2O3Being 340 parts, anhydride curing agent is 40 parts, and other operations are such as embodiment 1.
Table 1
Note: blank sample is without polyurethane-type TLCP, and other operate the composition epoxy resins as obtained by embodiment 1.
Claims (7)
1. the composition epoxy resin of the toughness reinforcing enhancing of TLCP, it is characterised in that described compositions is to be prepared by by the following compositions of mass parts: epoxy resin 100 parts, polyurethane-type liquid crystal polymer 1-8 part, aluminium sesquioxide 250～350 parts and anhydride curing agent 10～50 parts.
2. the composition epoxy resin of the toughness reinforcing enhancing of TLCP as claimed in claim 1, it is characterised in that described epoxy resin is the HE4112 that Shanghai Xiong Run resin company limited produces.
3. the composition epoxy resin of the toughness reinforcing enhancing of TLCP as claimed in claim 1, it is characterised in that described polyurethane-type liquid crystal polymer is:
4. the composition epoxy resin of the toughness reinforcing enhancing of TLCP as claimed in claim 1, it is characterised in that described anhydride curing agent is the HH306 that Shanghai Xiong Run resin company limited produces.
5. the composition epoxy resin of the toughness reinforcing enhancing of TLCP as claimed in claim 1, it is characterised in that described aluminium sesquioxide is nanoscale or micron order or the mixture of the two.
6. the composition epoxy resin of the toughness reinforcing enhancing of TLCP as claimed in claim 1, it is characterised in that described epoxy resin is to be prepared by by the following compositions of mass parts: epoxy resin 100 parts, polyurethane-type liquid crystal polymer 1-8 part, aluminium sesquioxide 300 parts and anhydride curing agent 40 parts.
7. the preparation method of the composition epoxy resin of the toughness reinforcing enhancing of TLCP as claimed in claim 1, said method comprising the steps of: after epoxy resin all being melted at 110 DEG C, after being sequentially added into TLCP, aluminium sesquioxide and anhydride curing agent and stirring, it is poured in the mould being preheated to 110 DEG C～130 DEG C, after vacuumizing and defoaming 0.5～1.5 hour, solidify 6～9 hours at 120 DEG C～150 DEG C, naturally cool to room temperature, obtain described composition epoxy resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410778278.1A CN105754292A (en) | 2014-12-15 | 2014-12-15 | Thermotropic liquid crystal polymer toughened and reinforced epoxy resin composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410778278.1A CN105754292A (en) | 2014-12-15 | 2014-12-15 | Thermotropic liquid crystal polymer toughened and reinforced epoxy resin composition |
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| CN105754292A true CN105754292A (en) | 2016-07-13 |
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| CN201410778278.1A Pending CN105754292A (en) | 2014-12-15 | 2014-12-15 | Thermotropic liquid crystal polymer toughened and reinforced epoxy resin composition |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108164979A (en) * | 2017-12-25 | 2018-06-15 | 科化新材料泰州有限公司 | A kind of polyurethane modified epoxy resin composition for semiconductor packages |
| CN112898528A (en) * | 2021-01-27 | 2021-06-04 | 江苏汉卿新材料科技研究院有限公司 | Liquid crystal polyurethane for modified epoxy resin and preparation method and application thereof |
| CN113604007A (en) * | 2021-08-05 | 2021-11-05 | 宁夏清研高分子新材料有限公司 | LCPU modified epoxy resin-based heat-conducting composite material and preparation method and application thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1083497A (en) * | 1993-08-16 | 1994-03-09 | 浙江大学 | Thermotropic liquid crystal polymer toughening epoxy resin and preparation method |
| JPH09194687A (en) * | 1996-01-12 | 1997-07-29 | Hitachi Ltd | Epoxy resin composition and its production |
| CN103013411A (en) * | 2012-12-26 | 2013-04-03 | 赛伦（厦门）新材料科技有限公司 | Insulated and heat-conducting film adhesive and preparation method thereof |
-
2014
- 2014-12-15 CN CN201410778278.1A patent/CN105754292A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1083497A (en) * | 1993-08-16 | 1994-03-09 | 浙江大学 | Thermotropic liquid crystal polymer toughening epoxy resin and preparation method |
| JPH09194687A (en) * | 1996-01-12 | 1997-07-29 | Hitachi Ltd | Epoxy resin composition and its production |
| CN103013411A (en) * | 2012-12-26 | 2013-04-03 | 赛伦（厦门）新材料科技有限公司 | Insulated and heat-conducting film adhesive and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 班建峰等: ""液晶聚氨酯/Al2O3/环氧树脂复合材料电性能的研究"", 《玉林师范学院学报（自然科学）》 * |
| 黄志义等: "液晶聚氨酯/环氧树脂复合材料的合成及应用", 《复合材料学报》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108164979A (en) * | 2017-12-25 | 2018-06-15 | 科化新材料泰州有限公司 | A kind of polyurethane modified epoxy resin composition for semiconductor packages |
| CN112898528A (en) * | 2021-01-27 | 2021-06-04 | 江苏汉卿新材料科技研究院有限公司 | Liquid crystal polyurethane for modified epoxy resin and preparation method and application thereof |
| CN113604007A (en) * | 2021-08-05 | 2021-11-05 | 宁夏清研高分子新材料有限公司 | LCPU modified epoxy resin-based heat-conducting composite material and preparation method and application thereof |
| CN113604007B (en) * | 2021-08-05 | 2023-01-10 | 宁夏清研高分子新材料有限公司 | LCPU modified epoxy resin-based heat-conducting composite material and preparation method and application thereof |
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