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多官能團(tuán)環(huán)氧樹脂以其高玻璃化轉(zhuǎn)變溫度，高分解溫度，長期高溫性能和良好的濕強(qiáng)度性能而聞名。

Multifunctional epoxy resins are well known for their high glass transition temperatures, high decomposition temperatures, long term high temperature performance and good wet strength performance.

 

S-510用酸酐固化劑，產(chǎn)品的Tg較高。用胺類固化劑，失重率較小，加工溫度可較低。而酸酐加叔胺體系，似有二者兼顧的效果。

When S-510 is used with anhydride curing agent, the product has a higher Tg. With amine curing agent, the weight loss rate is smaller and the processing temperature can be lower. The use of anhydride plus tertiary amine system seems to have both effects.

 

S-186有兩個與碳纖維黏結(jié)力極好的縮水甘油酯基，甚至與未經(jīng)表面處理的碳纖維也能很好地粘接。通?？刹捎瞄g苯二胺或液體四氫鄰苯二甲酸酐(70#酸酐)為固化劑，固化后Tg較高。

S-186 has two glycidyl ester groups with excellent adhesion to carbon fibers, and can bond well even to carbon fibers without surface treatment. Generally, m-phenylene diamine or liquid tetrahydrophthalic anhydride (70# anhydride) can be used as the curing agent, and the Tg after curing is higher.

 

S-720/MHHPA系統(tǒng)表現(xiàn)出最大的Tg。在長時間固化后，TGDDM/MHHPA體系具有最優(yōu)異的耐熱性能。

S-720/MHHPA system exhibits the largest Tg. After cured for a prolonged duration, the TGDDM/MHHPA system possessed the most excellent performance in heat resistance.

 

鑒于三官能和四官能環(huán)氧樹脂的最新發(fā)展，我們開始研究酸酐作為這些樹脂的固化劑的有效性。隨著我們工作的進(jìn)展，揭示了使這些系統(tǒng)非常適合預(yù)浸料制造，長絲纏繞和拉擠成型的某些性能。

In light of the recent development of tri and tetra-functional epoxy resins, we began to investigate the effectiveness of anhydrides as curing agents for these resins. As our work progressed, certain properties that make these systems well suited for prepreg manufacture, filament winding and pultrusion were revealed.

 

對于多官能環(huán)氧樹脂，環(huán)氧基與羥基的比率非常高，并且不容易發(fā)生反應(yīng)的初始步驟。因此，只要使用低游離酸酐，就可以預(yù)期具有較長的適用期。這是酸酐固化體系的獨特性能，其中高反應(yīng)性多官能樹脂比許多傳統(tǒng)環(huán)氧樹脂具有更長的適用期。

With the polyfunctional epoxies the ratio of epoxy groups to hydroxyl groups is very high and the initial step of the reaction does not readily occur. Therefore, as long as low free acid anhydrides are used, long pot lives can be expected. This is a unique property of anhydride cured systems where in the highly reactive polyfunctional resins exhibit longer pot lives than many conventional epoxies.

 

使用液體酸酐的一個顯著優(yōu)點是它們降低膠粘劑粘度的能力。許多多官能環(huán)氧樹脂是粘性液體或半固體。以大約1：1的比例使用的低粘度酸酐(60-300 cps)大大降低了樹脂混合物的粘度，并在不使用溶劑或其他降粘劑的情況下促進(jìn)了加工。

A significant advantage to the use of liquid anhydrides is their ability to reduce nux viscosity.  Many of the polyfunctional epoxy resins are viscous liquids or semisolids. Low viscosity anhydrides (60-300 cps) used inratios of approximately 1:1 greatly reduced the viscosity of the resin mix and facilitate processing without the use of solvents or other viscosity reducers.

 

多官能樹脂表現(xiàn)出更好的高溫性能，并且在較低的伸長率下更堅硬。固化收縮率明顯更高。

The polyfunctional resins show better high temperature performance and are stiffer with lower elongation. The shrinkage on cure is significantly higher.

南通新納希新材料有限公司專注生產(chǎn)銷售多官能團(tuán)環(huán)氧樹脂已十年有余。我們特種環(huán)氧樹脂的開發(fā)為國內(nèi)的新材料及軍工企業(yè)的發(fā)展提供了原料的保障，為國內(nèi)新材料的發(fā)展打破國外大公司的壟斷做出一定的貢獻(xiàn)。同時，這些特種環(huán)氧樹脂的合成工藝都是由我們新納希公司自主研發(fā)，因此該類項目在市場上具有很大的競爭優(yōu)勢。

Nantong Synasia New Material Co., Ltd. has focused on the production and sales of multifunctional epoxy resins for more than ten years. The development of our special epoxy resin provides a guarantee of raw materials for the development of domestic new materials and military enterprises, and makes a certain contribution to the development of domestic new materials to break the monopoly of large foreign companies. At the same time, the synthesis process of these special epoxy resins is independently developed by our company, which means that this type of project has a great competitive advantage in the market.