Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Polysiloxane composition laminated board and metal foil-coated laminated board thereof

A technology of polysiloxane and composition, applied in the field of laminates, can solve the problems of poor adhesion between pure silicone composition and copper foil, and achieve excellent electrical insulation performance, high feasibility of preparation process, and high peel strength. Effect

Pending Publication Date: 2017-10-31
GUANGDONG SHENGYI SCI TECH
View PDF8 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the problems existing in the prior art, the object of the present invention is to provide a polysiloxane composite laminate and its metal foil clad laminate. The copper clad laminate solves the problem of poor adhesion between the pure silicone composition and the copper foil. The board also has excellent resistance to electrical insulation, low dielectric loss and excellent resistance to dipping soldering

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Polysiloxane composition laminated board and metal foil-coated laminated board thereof
  • Polysiloxane composition laminated board and metal foil-coated laminated board thereof
  • Polysiloxane composition laminated board and metal foil-coated laminated board thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] The first polysiloxane layer composition and the third polysiloxane layer composition are made into resin glue, which is directly bonded to the rough surface of the copper foil by coating, and then heated in the range of 120°C-180°C Internal heating for 3-15 minutes, so that the polysiloxane composition reaches a semi-cured state, ready for use; the second polysiloxane layer composition is impregnated on the glass fiber cloth, and baked in the range of 120°C-190°C for 3- 15 minutes, control the reaction progress of hydrosiloxanation at 30%-70%, record it as the second P sheet, and reserve it; Cover the copper foil coated with the first and third polysiloxane layer compositions, and vacuum press in the range of 190°C-220°C to obtain the polysiloxane-based coating with good peel strength. copper plate.

Embodiment 2

[0050] Immerse the first and third polysiloxane layer compositions on the glass fiber cloth, and then bake in the range of 120°C-180°C for 3-15min, so that the polysiloxane composition reaches half In the cured state, a prepreg is formed, recorded as the first P sheet, and reserved. The composition of the second polysiloxane layer is impregnated on the glass fiber cloth, baked in the range of 120°C-190°C for 3-15min, and the reaction progress of hydrosiloxanation is controlled at 30%-70%, recorded as the second Two P sheets, spare; according to the thickness requirements of the copper-clad laminate, stack several second P sheets, and stack one or two first P sheets on the upper and lower sides, and copper foil on the upper and lower sides. Vacuum pressing within the range of 190° C. to 220° C. to prepare the polysiloxane-based copper-clad laminate with better peel strength.

Embodiment 3

[0052] The first composition layer and the third composition layer use different condensation type silicone resins from Example 2, catalysts, fillers, and silane coupling agents, and the second composition layer uses different silicone resins and catalysts from Example 2. , addition polymerization inhibitor, preparation method and technology are all identical with embodiment 2.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a polysiloxane composition laminated board and a metal foil-coated laminated board thereof. The laminated board comprises a three-layer structure, wherein a first layer is a first polysiloxane composition layer or a prepreg layer made of a first polysiloxane composition, a second layer is a prepreg layer made of a second polysiloxane composition, and a third layer is a third polysiloxane composition layer or a prepreg layer made of a third polysiloxane composition; the second layer is an intermediate layer, the first layer and the third layer are arranged at the upper side and the lower side of the second layer separately, wherein the thickness of the second layer is 75-95% of total thickness of the three-layer structure; the second layer is formed by a n addition type polysiloxane composition; the first layer and the third layer are formed by condensed and cured polysiloxane composition. The polysiloxane-based metal foil-coated laminated board is obtained through coating two sides of the laminated board with metal foils, and the metal foil-coated laminated board has relatively high peel strength and excellent voltage resistance and dielectric property.

Description

technical field [0001] The invention belongs to the technical field of laminated boards, and relates to a polysiloxane composite laminated board and a metal foil-clad laminated board. Background technique [0002] Silicone polymers with Si-O-Si as the main chain have many unique and valuable properties, such as high and low temperature resistance, weather resistance, aging resistance, electrical insulation resistance, ozone resistance, hydrophobicity, flame retardancy, and physiological inertia. widely used. Compared with traditional FR-4 copper clad laminates, polysiloxane based copper clad laminates have more obvious advantages in weather resistance, aging resistance, electrical insulation resistance and dielectric properties, and the cost is moderate. Because the chain segments of this kind of tree are soft, the surface energy is low, and the bonding ability with copper foil is poor, the peel strength of the copper clad laminate with this kind of resin as the insulating ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B32B17/04B32B17/06B32B27/04B32B27/28B32B15/20B32B15/14B32B33/00
CPCB32B15/14B32B15/20B32B17/04B32B17/061B32B27/28B32B33/00B32B2260/046B32B2260/021B32B2255/26B32B2255/06B32B2307/206B32B2307/306B32B2307/71B32B2307/50
Inventor 成浩冠黄增彪
Owner GUANGDONG SHENGYI SCI TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com