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超细聚酰亚胺树脂粉末(PI)

一.技术指标

 

外观

黄色超细粉末状

密度

1.3g/cm3

含量

≥99%

马丁耐热温度

260℃

抗拉强度

113.4MPa

平均粒径

30~40um

软化点

110~130℃

固化温度

220~230℃

吸水性

0.2~0.3%

抗弯强度

>1000 MPa

贮存期

>1年

 

二、工艺性能

1、固化时不产生低分子挥发物,与各种填料相容性好,粘结强度高,具有良好的柔韧性;固化后制得的砂轮与酚醛树脂金刚石砂轮相比,其机械强度高出30-40%,耐热温度亦高出50以上。

2、磨削时砂轮自身温度低,磨削声音清脆,加工件具有更高的表面质量和更低的表面粗糙度。

3、成型设备和工艺与酚醛树脂相同,固化速度快。 

 

三、用途

本产品外观为黄色超细粉末状,主要作金刚石砂轮、高速重负荷树脂砂轮及强力磨削树脂砂轮的结合剂,具有优良的耐热性、耐磨性、熔融流动性好,对磨料有较好的润湿和粘结性能,成型加工方便,工艺性良好。长期使用结果表明,本品一直是广大用户首*的理想结合剂,倍受青睐。

PI产品作为耐高温聚合物和树脂基高性能复合基体树脂,亦日趋广泛应用于航空/航天、电气/电子、机车、汽车、精密机械和自动办公机械等领域,可适用于制备耐高()温固体自润滑材料、精密机械部件、各种轴承、垫圈、密封环、雷达设备、模压制品及漆、胶粘剂和电绝缘板、绝缘管、变压器线圈的绝缘层、线圈座高性能电器绝缘材料等制品。

 

超细聚酰亚胺树脂粉末(PI)

Ultrafine polyimide tree powder (PI)

 

 technical indicators

 

appearance

yellow superfine powder

density

1.3g/cm3

 content

≥99

Ma Gong heat-resisting temperature

260

Tensile strength

113.4MPa

The average particle size

3040um

softening point

110130

Curing temperature

220230

water imbibition

0.20.3%

Bending  strength

1000 MPa

Storage  period

1 year

 

Processing  Performance:During the curing reaction do not produce low molecular volatiles, has good compatibility with all kinds of packing, high bonding strength, good flexibility, after curing of diamond grinding wheel with phenolic resin sand round compared to its mechanical strength with 30 ~ 40%, heat-resisting temperature more than 50 degrees higher, too.

 

when grinding wheel itself ,the temperature is low, grinding sound is ringing, the surface of the machined part has higher quality and lower surface roughness.

 

molding equipment and process is same as the phenolic resin. curing speed is faster.

 

 usage: this product appearance for yellow superfine powder, mainly used as diamond  wheel, high-speed heavy-duty resin grinding wheel and grinding resin grinding wheel bond strength, it has excellent heat resistance, abrasion resistance, molten liquidity is good, the abrasive has good wetting and bonding performance.

 

 Processing is convenient, good in usability, long-term use of the results showed that this product has been the preferred ideal binder, users.

 

PI products as high temperature resistant polymer and resin of high performance composite matrix resin, are also increasingly widely used in aerospace, electrical/electronics, motorcycle, automobile, precision machinery and automatic office machinery, and other fields can be used in the preparation of high resistance, low temperature solid self-lubricating materials, precision machinery parts, all kinds of bearings, gaskets, sealing ring, radar equipment, molded products, paint, adhesives and electric insulation board, insulation tube, transformer insulation of wire coil, coil high-performance electrical insulation materials and other products.

 





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