SURFACE MODIFICATION OF ELASTOMERS VIA ENCAPSULATED GLASS (SiO2)

An elastomer and elastic technology, applied in the field of surface modification of elastomers through encapsulated glass (SiO2), which can solve the problems of attracting dust, elastomer stickiness or stickiness, and gathering dust.

Pending Publication Date: 2021-03-26
APPLE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after an elastomer has been subjected to wear cycles, the elastomer may become sticky or tacky and may be prone to collecting or attracting dust

Method used

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  • SURFACE MODIFICATION OF ELASTOMERS VIA ENCAPSULATED GLASS (SiO2)
  • SURFACE MODIFICATION OF ELASTOMERS VIA ENCAPSULATED GLASS (SiO2)
  • SURFACE MODIFICATION OF ELASTOMERS VIA ENCAPSULATED GLASS (SiO2)

Examples

Experimental program
Comparison scheme
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Embodiment

[0077] The following examples are for illustrative purposes only. It will be apparent to those skilled in the art that various modifications can be made in the materials and methods without departing from the scope of the present disclosure.

[0078] sample

[0079] PDMS samples and fluorosilicone samples were prepared by exposing to UV light for various exposure times. In some variations, an ultraviolet lamp is used to provide the ultraviolet light. The UV lamp has a wavelength of 172nm and a wavelength of 254nm. Those skilled in the art will appreciate that UV lamps having other wavelengths may be used. In some variations, the wavelength may vary between 168nm and 176nm. In some variations, the wavelength may also vary between 250nm and 258nm.

[0080] Table 1 lists the UV exposure times for various samples. For example, sample UV-0.5 minutes has an exposure time of 0.5 minutes and a machine cycle of 1 cycle. Sample UV-1 minute has an exposure time of 1.0 minutes an...

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Abstract

The invention relates to surface modification of elastomers via encapsulated glass (SiO2). A composite is provided to include an elastomer substrate comprising methyl groups. The composite may also include a layer of glass comprising SiO2 formed over the elastomer substrate. A method of fabricating the composite is provided. The method may include diffusing an ozone-rich gas into the substrate ofan elastomer substrate comprising methyl groups. The method may also include exposing the elastomer substrate to UV radiation for a period of time. The method may further include converting a surfaceportion of the elastomer substrate into a layer of glass formed over the elastomer substrate.

Description

[0001] priority [0002] This disclosure is required under 35 U.S.C. § 119(e), filed September 26, 2019, entitled "SURFACE MODIFICATION OF ELASTOMERS VIA ENCAPSULATED GLASS (SiO 2 )”, which is incorporated herein by reference in its entirety. technical field [0003] The present disclosure relates to forming high performance surfaces on elastomers containing methyl groups. Background technique [0004] Elastomers such as silicones are soft and have good abrasion and stain resistance. The elastomer also has a smooth surface. However, after an elastomer has been subjected to wear cycles, the elastomer may become sticky or tacky and may be prone to collecting or attracting dust. It would be desirable to develop a coating so that the surface of the elastomer is less sticky or sticky and has a smooth feel. Contents of the invention [0005] In one aspect, a composite is provided that includes an elastomeric substrate comprising methyl groups. The composite may also includ...

Claims

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Application Information

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Patent Type & AuthorityApplications(China)
IPC IPC(8): B32B17/10B32B33/00B32B43/00C03C3/04
CPCB32B17/10B32B33/00B32B43/00C03C3/04B29C71/04B29C59/16B29C2035/0827B29C2791/005B29K2083/00B29C71/0063
InventorS·W·斯莱鲍格L·莱安德斯W·泰洛
OwnerAPPLE INC