应用说明
Jowapur®粘合剂获得国际认证
德国胶王公司推出全新单组份反应型聚氨酯粘合剂用于承重结构胶合木粘接。
近来，适用于承重结构胶合木粘接的Jowapur®粘合剂获得国际认证的类型增加。此系列5款粘合剂产品，是胶王公司单组份反应型聚氨酯产品线的延伸; 产品拥有不同特性以及操作性能，满足了承重木结构领域客户对专用粘合剂的需求。
相比于其他类型的粘合剂有着多种不同的用途，胶王公司开发的专用聚氨酯粘合剂适用于特殊用途，是各自的最佳选择。
相比于一般粘合剂，用于建筑方面的Jowapur®系列粘合剂在组成、性能、加工参数方面有着很大的差异，因为它们是用于特殊用途。这些粘合剂是承重结构胶合梁粘接的最佳选择。
胶王公司Jowapur®单组份聚氨酯粘合剂的特性如下：
单组份、无需混胶、无需养生、无浪费
除以上特性外，Jowapur®粘合剂发泡程度低，这就意味着木结构在间歇性存放时，避免了粘接在一起的风险，同时对于加工机械的污染程度降到最低。此外，在双面刨，平刨或压刨操作时，使加工更加平顺与便捷。
胶王公司先进的生产工艺以及用于稳定粘合剂的化学添加剂使得即便在存储时间较长与温度较高的情况下，增强纤维也不会从粘合剂分离。在整个操作时间内，粘合剂不会形成胶块，避免了堵塞设备喷头。
产品信息
Get more information one our new certified portfolio for fingerjointing and laminating
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| Base | Viscosity [mPas] / Temperature [°C] | Max. Assembly Time [min] / Temperature [°C] | Application | Certificate |
Download technical data sheet (PDF) | |
|---|---|---|---|---|---|---|
| Jowapur® 686.20 | 1-Component PUR Prepolymer | 10500 / 20 | 10 / 20 | Manufacturing bonded load-bearing timber structures (Fingerjointing) | Adhesive Type: EN 15425–I–70–FJ–0.1–w | de en fr |
| Jowapur® 686.30 | 1-Component PUR Prepolymer | 10500 / 20 | 15 / 20 | Manufacturing bonded load-bearing timber structures | Adhesive Type: EN 15425–I–70–GP–0.3–w | de en fr |
| Jowapur® 686.60 | 1-Component PUR Prepolymer | 10500 / 20 | 45 / 20 | Manufacturing bonded load-bearing timber structures | Adhesive Type: EN 15425–I–70–GP–0.3–w | de en fr |
| Jowapur® 681.10 | 1-Component PUR Prepolymer | 15500 ± 2500 / 20 | 10 / 20 | Manufacturing bonded load-bearing timber structures | Adhesive type: EN 15425–I–70–GP–0.3–w | de en fr |
| Jowapur® 681.60 | 1-Component PUR Prepolymer | 15500 ± 2500 / 20 | 60 / 20 | Manufacturing bonded load-bearing timber structures | Adhesive type: EN 15425–I–70–GP–0.3–w | de en fr |
| Jowapur® 681.40 | 1-Component PUR Prepolymer | 15500 ± 2500 / 20 | 40 / 20 | Manufacturing bonded load-bearing timber structures | Adhesive Type: EN 15425–I–70–GP–0.3–w | de en fr |
The products listed only represent a limited selection of the available product portfolio. Product availability might differ by region. The technical data, characteristics and field of application provided in the table outline the differences between the individual adhesives of the product portfolio. Our Application Technology Department and our Sales Representatives are on hand to provide advice and support you finding the best adhesive for your particular application.
Note: The information on this page is based on test results from our laboratories as well as on experience gained in the field, and does in no way constitute any guarantee of properties. Due to the wide range of different applications, substrates, and processing methods beyond our control, no liability may be derived from these indications nor from the information provided by our free technical advisory service. Customer trials under everyday conditions, testing for suitability at normal processing conditions, and appropriate fit-for-purpose testing are absolutely necessary. For the specifications as well as further information, please refer to the latest technical data sheets.
新闻和文章
High-performance gluing - Certified PUR adhesives for load-bearing glulam
The importance of load-bearing glulam in construction has been growing constantly over the years. Its use in new buildings is increasing and structures based on load-bearing glulam have become bigger and more sophisticated. At the same time, it provides possibilities for architectural creativity and aesthetics that are often unmatched. The adhesives specialist Jowat from Detmold is supporting this sustainable trend with an expertise based on many years of experience, with optimum service and with certified high-performance adhesives.
One family for all cases
The one-component PUR prepolymer adhesives of the Jowapur® 681.xx product family are certified according to EN 15425:2017 and are tailor-made to optimally meet the requirements for load-bearing glulam. They can be used in fingerjointing as well as in CLT/laminating applications, provide a choice of assembly times between 10 and 60 minutes, and facilitate an assembly time-pressing time ratio of up to 1:1. Industrial processors can therefore choose the adhesive that best fits their parameters to optimise their specific process and to either increase capacity or improve process reliability by only changing the adhesive and without the need for major investments.
PUR – Full of benefits
Compared to other technologies, PUR prepolymer adhesives for the manufacture of load-bearing timber parts provide several advantages in the manufacturing process as well as for the end product. They do not contain any formaldehyde or solvents, are free of emissions and completely odourless when fully cured, and require considerably lower application amounts due to a solids content of 100 %. Depending on the formulation, these adhesives can cure in a short period of time at room temperature already and facilitate almost invisible gluelines due to their colourless appearance. In addition, Jowapur® adhesives are processed as single components. Therefore, no mixing is necessary, pot lives become obsolete, and remnants from production are prevented.
A major secret behind the superior performance of the Jowapur® 681.xx product family are specially developed reinforcement fibres which are added to the adhesive in a specific procedure. Those fibres increase the strength of the glueline and help prevent the joined parts from sliding apart during production and curing. In addition, they lower the amount og foaming during the curing process and thereby considerably reduce the soiling of machines and equipment and help prevent the sticking together of parts that have been stacked or stored next to each other. The improved spread characteristics of these adhesives makes them an optimal choice for contactless applicator systems in fingerjointing units.
Sustainable construction
Jowat is confident that the importance of load-bearing glulam in construction will only continue to increase in coming years – partly due to global sustainability strategies. That development is to be supported with optimised high-performance adhesives. “Building with wood brings only benefits,” underscores Ralph Kirst from Business Development Load-bearing Glulam at Jowat SE. “And adhesive bonding is a future-oriented joining method that minimises construction costs and time in timber construction. Entire buildings can be prefabricated industrially and assembled on site.” Wood as a building material is therefore expected to continue on its upward trajectory. Apart from the economic benefits it provides, the material is also an ideal choice from an environmental point of view. Wood is a sustainable CO2 sink and thus actively supports the fight against global warming.
The article is published in the magazine ''Holzkurier 35/2020" in German language. You can download the original article down below.
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