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楼主: 徐家汇

叶片用环氧树脂区别

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发表于 2009-4-22 22:05:56 | 显示全部楼层
Dow不是国产化了吗?
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发表于 2009-4-22 22:14:20 | 显示全部楼层
Dow Epoxy Systems Starts Local Manufacture of Formulations for Wind Energy in China and South Korea

Dow Epoxy Systems (DES) announced today that it has established an on-the-ground manufacturing facility in China by utilizing a state-of-the-art site from another Dow business. In addition, DES will also start producing blends in a Dow Epoxy site in South Korea, putting DES in a uniquely competitive position to supply and support its customers in China and the Asia Pacific region.

With plants strategically located in Brazil, US, Europe, China and South Korea, DES is now capable of effectively supplying customers anywhere in the world with the highest level of service.

"Establishing a local asset in China underscores our commitment to customers in the country and is a major step forward in realizing our aggressive growth aspirations in Asia Pacific," said Pepe Carnevale, global business director, Dow Epoxy Systems.

Located in Wuhan, capital city of Hubei province, the manufacturing facility is strategically located at the heart of China to service customers in both the coastal as well as inner regions of the country. Meanwhile, the DES site in Gumi is also strategically located in South Korea to support and service customers in North Asia.

The manufacturing site in Wuhan is well equipped to provide customers with differentiated, solution-based products with multiple reactors which can handle also very high viscosity formulations. The asset will be used for the multiple market segments that DES is targeting, in particular composites, wind and infrastructure.

"Coupled with our world class R&D capability in Shanghai, our facilities in Wuhan and Gumi will differentiate - and accelerate - our already successful growth in China and the Asia Pacific region, particularly in two key target markets - wind energy and infrastructure. What sets us apart from competition is our on-the-ground capability to provide customized solutions to our customers," he said.

According to the Chinese Wind Energy Association (CWEA), the Chinese wind energy market doubled in size in 2008 compared to 2007, reaching over 12 GW of total installed capacity. In 2009, new installed capacity is expected to nearly double again. At this rate, China would be well on its way to overtake Germany and Spain to become world number two in terms of total wind power capacity in 2010.  

South Korea has set ambitious growth for the establishment of renewable energies. The South Korean government has reportedly placed orders to build ten new indigenously-made wind power generators to help reduce the country's reliance on imports in the renewable energy sector. Its Ministry of Knowledge Economy said the 2-to-3 MW generators, which are expected to compete commercially with market-dominating foreign products, will be built on land owned by three state-run thermal power plants by 2010.

Meanwhile, investments in rural infrastructure and infrastructural projects such as highways and railways have been an integral part of the Chinese government's US$586 billion stimulus package, announced in November last year, in a bid to revitalize the country's slowing economy amid the global financial downturn.

"Our global presence translates into strong local support, and our integrated supply chain is our distinct competitive advantage," added Carnevale. "With the manufacturing sites in Asia Pacific and the various facilities in other parts of the world, we now have in place an unmatched global supply network that can meet our customers' needs for fast supply and high volumes of qualified materials - helping them keep pace and take advantage of growth opportunities."
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发表于 2009-4-22 22:30:55 | 显示全部楼层
Dow 收购的欧洲公司UPPC AG ,如同Hexion收购MGS Germany一样。

http://www.uppc.de/english/docs/ ... release_final_0.pdf

http://www.uppc.de/
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发表于 2009-4-23 08:30:25 | 显示全部楼层
引用第19楼曾鸿鸣于2009-03-19 09:53 AM发表的  :
鄙人人认为:
对于灌注来说,粘度应该是越低越好的,只是如果不改变灌注参数,也会出现缺陷(常常是:不是白斑,而是气泡)
另外树脂与纤维之间的界面张力也比较重要。
灌注参数设定的根本是:界面前沿和树脂前沿保持尽可能一致。


也不是越低越好,有个范围的,太低了树脂对纤维的浸润性不好。但是一般来说环氧树脂的粘度再低都不会低到哪里去的,除了BPF类的。
树脂的粘度大致在700-1300mPas,混合后才如胡总所说的200多,但是范围一般在150-350之间
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发表于 2009-4-23 08:36:03 | 显示全部楼层
另外问各位大侠几个问题:1.你们有没有关注环氧树脂分子量范围。2.树脂试验对羟基当量有无要求。3.有关树脂化学性能方面要求高不,还是只是测试树脂和其浇铸体的物理性能和工艺性能。
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发表于 2009-4-23 10:50:56 | 显示全部楼层
引用第25楼weiyuzhu于2009-04-13 05:21 PM发表的  :
现在咱们国内没有树脂供应商,全是Hexion、DOW、Huntman,为什么不在国内找一家供应商呐?
价格、供货周期都是很大的优势,未来的风电竞争就是价格的比拼,现在不找以后还要再找供应商
到时再认证检测就要很多时间。品质方面可以达到进口标准。
灌注树脂粘度一般在1000cps左右,混合粘度在250cps左右


我建议大家联系联系蓝星, 他们在做叶片用环氧的配方, 而且蓝星无锡自己产环氧, 比那些小公司强多了
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发表于 2009-4-25 21:50:15 | 显示全部楼层
楼上的,发白有时跟树脂是没有关系的。在做真空、灌注、后固化 。都是有原因的
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发表于 2009-4-27 15:58:53 | 显示全部楼层
引用第25楼weiyuzhu于2009-04-13 05:21 PM发表的  :
现在咱们国内没有树脂供应商,全是Hexion、DOW、Huntman,为什么不在国内找一家供应商呐?
价格、供货周期都是很大的优势,未来的风电竞争就是价格的比拼,现在不找以后还要再找供应商
到时再认证检测就要很多时间。品质方面可以达到进口标准。
灌注树脂粘度一般在1000cps左右,混合粘度在250cps左右


国内已经有做环氧树脂的啦,LZ下方的广告就是一家业内做环氧树脂的企业,据说还不错。
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发表于 2009-5-18 17:32:01 | 显示全部楼层
引用第28楼iseeall于2009-04-22 10:05 PM发表的  :
Dow不是国产化了吗?

国产化?还得一段时间,现在他的基础树脂都是进口过来在国内张家港工厂复混
供货周期还是比较漫长的,而且DOW的价格是几家进口当中最为高的
现在市面上流动最多的还是Hexion
国产的
上纬的 在国内有的做,但不多,他们的产能也不是很大
圣洁的 在国内原来是做不饱和的小叶片,现在浇注树脂也做出来啦,并拿到啦GL证书,用的人就更少啦
国都化工 也拿到啦GL证书,基础树脂也是自己生产,很多叶片厂都在联系啦,不过现在还没有人用过
惠利现在也拿到啦GL证书,市场份额还不晓得
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发表于 2009-5-20 15:33:13 | 显示全部楼层
上纬的树脂还是不错的,年产能能到4万吨,而且目前每个月也有三四百吨出货,400套上纬树脂制作的叶片成功挂机,成绩不错啊,各位如有需求可以联系!seanxiao6831@163.com
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