| 查看: 346 | 回复: 6 | ||
| 【奖励】 本帖被评价6次，作者huangxc8687增加金币 4.75 个 | ||
| 当前主题已经存档。 | ||
[资源]
【资源】Adhesion to Fluoropolymers
|
||
|
Adhesion to Fluoropolymers Publisher: Smithers Rapra Press Number Of Pages: 134 Publication Date: 2006-06-06 ISBN-10 / ASIN: 1859575242 ISBN-13 / EAN: 9781859575246 Product Description: Fluorinated polymers have a number of very useful properties such as excellent chemical resistance. However, they are usually difficult to bond without a pretreatment. There are exceptions and untreated poly(vinylidene fluoride), for example, may be successfully bonded with an amine-cured epoxide. The most effective methods to pretreat fully fluorinated polymers were developed in the 1950s. Much work, especially on electrochemical and plasma treatments, has since been carried out but to date these have not proved as effective as the early methods. Partially fluorinated polymers may be treated like polyolefins, for example, flame, and plasma treatments are very effective. Aqueous and alcoholic solutions of Group I hydroxides are also very effective. Fluoropolymers can provide a combination of properties including high temperature resistance, excellent resistance to many chemicals and ultraviolet (UV) radiation, fire resistance and low friction. Fluoropolymers are relatively expensive and they are generally used in specialised applications such as linings for chemical plant, spacecraft coatings that are resistant to atomic oxygen, fire-resistant coatings for cables, and of course, non-stick functions. There are more than twenty different fluoropolymers that are commercially available. Good adhesion is required in a number of technologies involving fluoropolymers including adhesive bonding, painting, printing, metallisation (via vacuum or solution) and composite production. However, fully fluorinated polymers such as PTFE and FEP are notoriously difficult to adhere to, while partially fluorinated polymers such as PVDF and PVF may cause problems depending on the circumstances. To achieve a satisfactory level of adhesion, it is often necessary to carry out a pretreatment with both fully and partially fluorinated polymers. In this review the principles of adhesion are considered first (Section 2). Techniques that have greatly increased our understanding of adhesion to fluoropolymers are described in Section 3. Cases where good adhesion is achieved without a pretreatment are examined in Section 4. However, as pretreatments are usually needed to get the required level of adhesion, this review is mainly concerned with the wide variety of methods available to pretreat fluoropolymers (Section 5). A general discussion and conclusions follow. This Rapra Review Report comprises a concise, expert review, supported by an extensive bibliography compiled from the Polymer Library on the topic of adhesion to fluoropolymers. This bibliography provides additional information on this topical field. This review will be of interest both to those who already use fluoropolymers and those who are considering using them. http://ifile.it/h690kny |
回复此楼» 猜你喜欢
材料科学与工程求调剂
已经有3人回复
-
289求调剂
已经有5人回复
-
329求调剂，一志愿西北工业大学，材料工程（085601）
已经有6人回复
-
化学工程085602 305分求调剂
已经有21人回复
-
26申博自荐
已经有5人回复
-
296求调剂
已经有5人回复
-
总分293求调剂
已经有10人回复
-
材料专硕调剂
已经有3人回复
-
调剂310
已经有12人回复
-
化学0703 调剂 306分 一志愿211
已经有6人回复
2楼2009-06-23 21:40:51
7楼2009-07-13 11:03:28
简单回复
2009-06-23 22:27
回复
2009-06-24 08:56
回复
2009-07-13 05:43
回复
tommyliu6楼
2009-07-13 10:23
回复
