CN1087102A - Polyaryl ether sulphone/liquid crystal high-polymer molecular composite material and preparation method - Google Patents
Polyaryl ether sulphone/liquid crystal high-polymer molecular composite material and preparation method Download PDFInfo
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- CN1087102A CN1087102A CN 92113393 CN92113393A CN1087102A CN 1087102 A CN1087102 A CN 1087102A CN 92113393 CN92113393 CN 92113393 CN 92113393 A CN92113393 A CN 92113393A CN 1087102 A CN1087102 A CN 1087102A
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- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
Method of the present invention is to be basic raw material with phthalein lateral group polyarylether sulfone/p-Hydroxybenzoate-ethylene glycol terephthalate liquid crystal high polymers, adopts melt-mixing method, and it is good to obtain physical and mechanical properties, is easy to the high-polymer molecular composite material of forming process.
Description
The invention belongs to phthalein lateral group polyarylether sulfone/p-Hydroxybenzoate a pair of phthalic acid glycol ester molecular composite material and preparation method.
Chinese patent 85101721, disclose the Liu Ke of Changchun Inst. of Applied Chemistry, Chinese Academy of Sciences and waited people's " synthetic polyether sulphone that has the phthalein side group of single stage method " technology quietly, condensation in solution forms this technology synthetic resin with phenolphthalein and dichloro diphenyl sulfone, second-order transition temperature is the highest in the homologous series polymkeric substance, is about 244 ℃.This material mechanical performance is good, and creep resistance shape is good, and is ageing-resistant, and electrical property is good.Main drawback is the melt viscosity height, and forming process temperature range narrow (about 20K) is extruded and difficulty relatively such as injection moulding.Another shortcoming of this material is that toughness is relatively poor, and the non-notch simple beam impact strength has only 21KJ/m during normal temperature
2
The objective of the invention is to select for use the polyester type liquid crystal high polymers blend together of phthalein lateral group polyarylether sulfone, under 320-360 ℃, melt extrude, again through cooling, it is lower that melt viscosity is prepared in pelletizing, forming process is easy, the PES-C/PHB-PET molecular composite material that material fragility and physical and mechanical properties are improved.
The present invention adopts a pair of phthalic acid glycol ester of p-Hydroxybenzoate copolymerization fat (PHB-PET) liquid crystal high polymers, material modified as PES-C, and the second-order transition temperature of these liquid crystal high polymers＞200 ℃, the liquid crystal limited proportionality is between 300-420 ℃.
Specific implementation of the present invention is that PES-C resin and PHB-PET copolyesters are ground into powder below 100 in pulverizer.Weight by PES-C consists of 98-85 part, and PHB-PET is the ratio of components of 2-15 part, with two kinds of powders mixing in homogenizer.Premix powders is sent into melt blending in the screw extrusion press, and temperature is controlled at 320-360 ℃ of preparation PES-C/PHB-PET molecular composite material.Material cooling, pelletizing and packing with screw extrusion press is discharged get the PES-C/PHB-PET molecular composite material.Compare with former PES-C material, the melt viscosity of this molecular composite material only is in 1/4th to 1/2nd of the PES-C viscosity of uniform temp and identical shearing rate, simple beam impact strength improves 24-130%, composite bending modulus improves 4-11%, bending strength improves about 5%, it is about 5% that tensile strength improves, and tensile modulus improves 12-25%.
Embodiment provided by the invention is as follows:
Example 1:
With the PES-C of 97.5 parts (parts by weight, together following) and PHB-PET crushing screening (100 order) back mixing in homogenizer of 2.5 parts, deliver to melt blending in the twin screw extruder then.The length-to-diameter ratio of forcing machine 〉=23/1, each section temperature are controlled between 320-330 ℃, and head temperature is controlled at about 340 ℃, and the screw rod revolution is 80rpm.Extruded material cooling, pelletizing get the finished product molecular composite material.This material is compared with pure PES-C, and melt viscosity drops to 2000pas(340 ℃ by 4000Pas, 10s
-1), to extrude with injecting forming temperature and reduce 10-15 ℃, shock strength (charpy) is by 21.5KJ/m
2Be elevated to 49.7KJ/m
2, bending strength is increased to 158.1MPa by 151.9MPa, and composite bending modulus is increased to 1.79GPa by 1.60GPa, and tensile strength rises to 105.4MPa by 99.9MPa.
Example 2:
With PHB-PET crushing screening (100 order) back of 90 parts PES-C and 10 parts first mixing in homogenizer, deliver to melt blending in the twin screw extruder then.The length-to-diameter ratio of forcing machine 〉=23/1, each section temperature are controlled at about 320 ℃, and head temperature is controlled at about 330 ℃, and the screw rod revolution is 80rpm.Extruded material gets the finished product molecular composite material through cooling, pelletizing.This material is compared with pure PES-C, and melt viscosity drops to 1000pas(340 ℃ by 4000pas, 10s
-1), extrude with injecting forming temperature and reduce 15-20 ℃.The shock strength of this material (charpy) is 26.6KJ/m
2, composite bending modulus is 3.11GPa, and bending strength is 155.9MPa, and tensile modulus is 1.82GPa, and tensile strength is 94.8MPa.The respective impact intensity of pure PES-C is 21.5KJ/m
2, composite bending modulus is 2.79GPa, and bending strength is 151.9MPa, and tensile modulus is 1.60GPa, and tensile strength is 99.9MPa.
Claims (2)
1, a kind of high-polymer molecular composite material, the molecular composite material system that the copolyesters type liquid crystal high polymers (PHB-PET) that it is characterized in that adopting the phthalein lateral group polyarylether sulphone resin (PES-C) that generated by phenolphthalein and dichloro diphenyl sulfone condensation and a pair of phthalic acid glycol ester of p-Hydroxybenzoate to form are basic raw material, form, the weight of molecular composite material is in 100 parts
PES-C is 98-85 part, and PHB-PET is 2-15 part.
2, a kind of preparation method of high-polymer molecular composite material is through raw material pulverizing, stirs premix in the machine at height, melt blending, and material cooling, pelletizing the invention is characterized in that the melt blending temperature is controlled at 320-360 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92113393 CN1033331C (en) | 1992-11-13 | 1992-11-13 | Polyaryl ether sulphone/liquid crystal high-polymer molecular composite material and preparing process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92113393 CN1033331C (en) | 1992-11-13 | 1992-11-13 | Polyaryl ether sulphone/liquid crystal high-polymer molecular composite material and preparing process thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1087102A true CN1087102A (en) | 1994-05-25 |
| CN1033331C CN1033331C (en) | 1996-11-20 |
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ID=4946383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92113393 Expired - Fee Related CN1033331C (en) | 1992-11-13 | 1992-11-13 | Polyaryl ether sulphone/liquid crystal high-polymer molecular composite material and preparing process thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1033331C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1092973C (en) * | 1994-12-13 | 2002-10-23 | 艾尤尔医学两合公司 | Use of incense in the treatment of alzheimer's disease |
| CN104004170A (en) * | 2014-02-23 | 2014-08-27 | 华东理工大学 | Industrial preparation method for high-performance thermotropic liquid crystal polyester with homogeneous segmer structure |
| CN104017194A (en) * | 2014-05-13 | 2014-09-03 | 华东理工大学 | Method for preparing thermotropic liquid crystal polymer on large scale by double-kettle series process |
| CN104311825A (en) * | 2014-10-14 | 2015-01-28 | 中国科学院宁波材料技术与工程研究所 | Phenolphthalein type copolyimide and preparation method thereof |
-
1992
- 1992-11-13 CN CN 92113393 patent/CN1033331C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1092973C (en) * | 1994-12-13 | 2002-10-23 | 艾尤尔医学两合公司 | Use of incense in the treatment of alzheimer's disease |
| CN104004170A (en) * | 2014-02-23 | 2014-08-27 | 华东理工大学 | Industrial preparation method for high-performance thermotropic liquid crystal polyester with homogeneous segmer structure |
| CN104004170B (en) * | 2014-02-23 | 2016-03-23 | 华东理工大学 | A kind of segmented structure uniform high-performance thermotropic liquid crystalline polyester industrial production process |
| CN104017194A (en) * | 2014-05-13 | 2014-09-03 | 华东理工大学 | Method for preparing thermotropic liquid crystal polymer on large scale by double-kettle series process |
| CN104311825A (en) * | 2014-10-14 | 2015-01-28 | 中国科学院宁波材料技术与工程研究所 | Phenolphthalein type copolyimide and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1033331C (en) | 1996-11-20 |
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