汉高乐泰反应型热熔胶LOCTITE 3580资料

13年11月20日 11:06 | anndi | 1

从触屏手机起步开始，边框的粘接追求越来越窄及粘接速度越来越快，随之一个看上去比较传统的胶粘剂产品—热熔胶又有了新的应用点。记得当时主要是以乐泰3541及3542为主，以及3M公司的2665以及日立化成的为主，均属于反应型热熔胶，关于反应型热熔胶及以上几个型号的产品大家可以在本站搜索查看。最新看了一下，随着移动触控设备的发展，以及柔性显示、穿戴式电子的发展，乐泰的反应型热熔胶由陆陆续续衍生出了几个型号，其中这款LOCTITE 3580在穿戴电子组装上有大量应用。这款反应型热熔胶一个比较独特的地方就是可以用UV灯来控制固化的进程，以适合不同场合的组装要求。另外比较奇怪的是乐泰的官网上几乎找不到任何这几款产品的TDS资料，只是在网页上略有介绍。摘抄如下：

Loctite 3580

Loctite® 3580™ is a toughened, one component polyurethane reactive hot melt adhesive designed with low halogen content for structural bonding of hand held electronic devices like mobile phones, tablets, & laptops. It is well suited for metal, ink coated glass and engineered plastics bonding applications where shock and impact resistance is required. This novel technology is warm applied like traditional PUR hot melts and it has a light curing preactivation. This preactivation allows for extremly fast strength generation, reducing cycle time and work in process when compared to traditional PUR hot melts.

This product is only available for sale in China.

PUR Hotmelt Structural Adhesives

PUR Hotmelt adhesives are pressure sensitive and give high initial strength instantly after joining the parts.

Cure at room temperature with moisture reaction.

Bond variety of materials such as plastics, metals and glass.

Typical applications are structural bonding of mobile devices window to frame and other decorative trims.

Benefits & features
Product Selector Guide
Loctite® Adhesives Compared to PSA Tape

		Loctite® 3541	Loctite® 3542	Loctite® 3572	Loctite® 3573	Loctite® 3580	Loctite® 3570
Bond strength	Plastic to plastic	Very high	High	High	High	High	Very high
	Plastic to metal	High	Very high	High	High	High	Very high
	Plastic to glass	Moderate	Very high	Very high	Very high	High	High
	Metal to glass	Moderate	Very high	Very high	Very high	High	High
Gap fill		Medium	Medium	High	High	High	High
Speed of dispense / flow rate		Fast	Fast	Fast	Fast	Medium	Medium
Fixture time *		1 to 2 minutes	1 to 2 minutes	–	–	–	–
Open time *		1 to 2 minutes	2 to 4 minutes	>4 minutes	>4 minutes	UV Control	>4 minutes
Bead size		Thin

* Fixture time and Open time: Vary upon the operating environment conditions, high temperatures will lengthen open times, while lower temperatures will shorten open time, and low humidity condition may extend fix times.

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