CN103951962A

CN103951962A - Thermoplastic polyimide/modified polyphenylene oxide mixture and preparation method thereof

Info

Publication number: CN103951962A
Application number: CN201410191710.7A
Authority: CN
Inventors: 方省众
Original assignee: ZHENJIANG YIQING COMPOSITE MATERIAL Co Ltd
Current assignee: ZHENJIANG YIQING COMPOSITE MATERIAL Co Ltd
Priority date: 2014-05-07
Filing date: 2014-05-07
Publication date: 2014-07-30

Abstract

The invention relates to a thermoplastic polyimide/modified polyphenylene oxide mixture and a preparation method thereof. The mixture comprises following raw materials in percentage by weight: 85%-99% of modified polyphenylene oxide, and 1%-15% of thermoplastic polyimide. The preparation method comprises the steps of (1) weighing the raw materials according to the parts by weight: (2) mixing all the raw materials at low speed at room temperature to obtain a uniform mixture; and (3) adding the mixture into a twin-screw extruder, extruding and prilling at 220-285DEG C, so as to obtain the thermoplastic polyimide/modified polyphenylene oxide mixture. The thermoplastic polyimide/modified polyphenylene oxide mixture has excellent resistance to heat and electrical property.

Description

A kind of thermoplastic polyimide modified/polyphenylene ether blend and preparation method thereof

Technical field

The present invention relates to a kind of new modified polyphenylene ether blend and preparation method thereof, be specifically related to a kind of thermoplastic polyimide/Noryl blend and preparation method thereof, belong to Noryl technical field.

Background technology

Polyphenylene oxide (PPO) is one of a kind of five large-engineering plastics, and the thermoplastic resin being polymerized by the synthetic polyphenylene oxide of 2,6-xylenol, is generally khaki color Powdered.211 ℃ of its second-order transition temperatures, maximum feature is under long-term load, has good dimensional stability and outstanding electrical insulating property, use temperature scope is wide, can be within the scope of-127～121 ℃ life-time service.There is good water-fast, resistance to steam performance, the tensile strength that goods tool is higher and shock strength, creep resistance might as well.But there is poor fluidity in PPO, unmanageable problem, the MODIFIED PP O on market, is polystyrene (PS) and PPO blending and modifying product substantially, can solve the problem of poor fluidity.But after PS MODIFIED PP O, thermotolerance reduces, and in order to improve MODIFIED PP O dimensional stability at high temperature, expands its range of application, MODIFIED PP O product is carried out to further modification, and developing high performance MODIFIED PP O new variety becomes wide concerned research direction in recent years.Compare with additive method, blending and modifying is a kind of very effective method.

Thermoplastic polyimide (TPI) be on a class main chain containing the special engineering plastics of imide group, there is outstanding thermostability, good shock resistance, radioprotective and solvent resistance.Good Heat-resistance, Td5% is more than 500 ℃.

The processing temperature of TPI is more than 300 ℃, and is 330 ℃ containing the PPO decomposition temperature of PS, therefore both blends all can not reach the processing temperature of TPI in the whole course of processing, also do not see so far the relevant report of both being carried out to blending and modifying.

Summary of the invention

The object of the invention is to solve current Noryl heat-drawn wire low, the shortcoming that resistance toheat is poor, provides a kind of thermoplastic polyimide/Noryl blend material, and a kind of technique simple operations preparation method is easily provided.

For realizing above object, technical scheme of the present invention is to provide a kind of thermoplastic polyimide/Noryl blend, and its moiety by weight percentage meter is comprised of following raw material:

Noryl: 85%-99%

Thermoplastic polyimide: 1%-15%

Further technical scheme is the Noryl that raw material is 95% by weight percent, the thermoplastic polyimide that weight percent is 5%.

Further technical scheme is the Noryl that raw material is 90% by weight percent, the thermoplastic polyimide that weight percent is 10%.

The Noryl using in embodiments of the invention is the Noryl of each model, a kind of in PX9406P, X0715, HSP8340, HT190.Thermoplastic polyimide is the thermoplastic polyimide of various models, a kind of in PI-P-100, YZPI-JL10, SK-0210, Ultem1000.

Technical scheme of the present invention can also be to provide a kind of preparation method of thermoplastic polyimide/Noryl blend, comprises the steps:

(1) take by weight raw material;

(2) all raw materials are at room temperature carried out to low speed mixing, it are mixed:

(3) raw material mixing is joined in twin screw extruder, extruding pelletization at the temperature of 220 to 285 ℃, makes thermoplastic polyimide/Noryl blend.

The present invention has the following advantages:

Thermoplastic polyimide add the resistance toheat that can significantly improve polyphenylene oxide, when thermoplastic polyimide content is 10wt%, blend heat-drawn wire improves 30 ℃ compared with Noryl.

2. in Noryl matrix, add a small amount of thermoplastic polyimide, just can effectively improve resistance toheat and the electrical property of Noryl, and then improve the actual application value of material.

3. Preparation equipment is simple, technique simple possible, and the material of preparation is suitable for structured material, can be for the manufacture of various trolley parts, bearing, gear, valve and electronic devices and components.

Embodiment

Provide embodiment below so that the present invention is specifically described.

Embodiment mono-

Raw materials comprises: Noryl pellet is the PX9406P that U.S. SabicIP (Saudi Arabia base Creation Plastics) produces.Thermoplastic polyimide resin powder is the YZPI-JL10 that Nanjing Yue Zi Chemical Co., Ltd. produces.

By Noryl, thermoplastic polyimide in mass ratio after 97:3 simple blend in twin screw extruder (SHJ-20 type, the dynamo-electric company limited of Nanjing Jie Ente) extruding pelletization, the temperature of forcing machine from feeding section to mouth mould is respectively 260 ℃, 270 ℃, 280 ℃, 285 ℃.

Pellet after drying the upper injection moulding of injection moulding machine (HTF90W1, Hai Tian molding machine group) be test model, the temperature of injection moulding machine from hopper to nozzle is respectively 265 ℃, 275 ℃, 280 ℃, 285 ℃.

Test performance data are as table 1.

Embodiment bis-

By Noryl, thermoplastic polyimide in mass ratio after 93:7 simple blend in twin screw extruder (SHJ-20 type, the dynamo-electric company limited of Nanjing Jie Ente) extruding pelletization, the temperature of forcing machine from feeding section to mouth mould is respectively 260 ℃, 270 ℃, 280 ℃, 285 ℃.

Test performance data are as table 1.

Embodiment tri-

Raw materials comprises: Noryl pellet is the X0715 that Japanese Asahi Chemical Industry produces.Thermoplastic polyimide resin powder is the YZPI-JL10 that Nanjing Yue Zi Chemical Co., Ltd. produces.

By Noryl, thermoplastic polyimide in mass ratio after 90:10 simple blend in twin screw extruder (SHJ-20 type, the dynamo-electric company limited of Nanjing Jie Ente) extruding pelletization, the temperature of forcing machine from feeding section to mouth mould is respectively 260 ℃, 270 ℃, 280 ℃, 285 ℃.

Test performance data are as table 1.

Embodiment tetra-

By Noryl, thermoplastic polyimide in mass ratio after 85:15 simple blend in twin screw extruder (SHJ-20 type, the dynamo-electric company limited of Nanjing Jie Ente) extruding pelletization, the temperature of forcing machine from feeding section to mouth mould is respectively 260 ℃, 270 ℃, 280 ℃, 285 ℃.

Test performance data are as table 1.

Embodiment five

Raw materials comprises: Noryl pellet is the X0715 that Japanese Asahi Chemical Industry produces.Thermoplastic polyimide resin powder is the Ultem1000 that U.S. SabicIP (Saudi Arabia base Creation Plastics) produces.

Test performance data are as table 1.

Embodiment six

Raw materials comprises: Noryl pellet is the X0715 that Japanese Asahi Chemical Industry produces.Thermoplastic polyimide resin powder is the PI-P-100 that Changchun Hipolyking Co., Ltd. produces.

Test performance data are as table 1.

The sample of test implementation example 1 to embodiment 6 carries out performance test, and its preparation condition and performance test methods are as follows:

By following testing method, the mechanical property of sample, thermal characteristics and melting index are tested, result is as shown in table 1:

Tensile property: press ASTM D638 test

Impact property: press ASTM D256 test

Bending property: press ASTM D790 test

Resistance toheat: press ASTM D648 test

Surface resistivity: press ASTM D257 test

Melting index: press ASTM D1238-10 test

The properties test result of table 1 embodiment sample

From table one, embodiment mono-, two, and its heat-drawn wire, surface resistivity significantly improve, and tensile strength, elongation at break change not obvious; , embodiment tri-, four, and its shock strength, melt index properties decrease, but still can meet industrial use.Embodiment tri-, five, six contrasts, can see that the TPI of the different trades mark is different on the impact of Noryl.

The raising of heat-drawn wire and surface resistivity, makes Noryl meet the different demands of automotive field and electronic applications.

Here description of the invention and application is illustrative, not wants that therefore, the present invention is not subject to the restriction of the present embodiment by scope restriction of the present invention in the above-described embodiments, and the technical scheme that any employing equivalence replacement obtains is all in the scope of protection of the invention.

Claims

1. thermoplastic polyimide/Noryl blend, its moiety by weight percentage meter is comprised of following raw material:

Noryl: 85%-99%

Thermoplastic polyimide: 1%-15%.

2. a kind of thermoplastic polyimide/Noryl blend as claimed in claim 1, further technical scheme is the Noryl that raw material is 95% by weight percent, the thermoplastic polyimide that weight percent is 5%.

A kind of thermoplastic polyimide/Noryl blend as claimed in claim 1 further technical scheme be the Noryl that raw material is 90% by weight percent, the thermoplastic polyimide that weight percent is 10%.

4. a kind of thermoplastic polyimide/Noryl blend as claimed in claim 1, the Noryl that the Noryl using in embodiments of the invention is each model, a kind of in PX9406P, X0715, HSP8340, HT190,

Thermoplastic polyimide is the thermoplastic polyimide of various models, a kind of in PI-P-100, YZPI-JL10, SK-0210, Ultem1000.

5. the preparation method of a kind of thermoplastic polyimide/Noryl blend as claimed in claim 1, comprises the steps:

(1) take by weight raw material;