Unlock instant, AI-driven research and patent intelligence for your innovation.

Two-composition fireproof silicone sealant

A silicone sealant, two-component technology, applied in the direction of adhesives, adhesive additives, other chemical processes, etc., can solve the problems affecting the application range of silicone sealants and the reduction of mechanical properties, so as to ensure fire resistance and flame retardancy. The effect of enhancing the bonding ability

Active Publication Date: 2015-07-08
江苏华硅新材料科技有限公司
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, while improving the flame retardant performance, the mechanical properties of the system are greatly reduced, which seriously affects the application range of silicone sealants.

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
  • Two-composition fireproof silicone sealant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-5

[0058] Silicone sealant of the present invention, embodiment 1-5 is composed as follows:

[0059]

[0060] Prepare component A and component B separately, dehydrate component A and disperse evenly, and component B uniformly disperse to obtain components A and B of the fire-resistant and flame-retardant silicone sealant.

Embodiment 6-10

[0062] Examples 6-10 correspond to Examples 1-5 respectively, the only difference is that Examples 6-10 contain inorganic flame retardants, and the inorganic flame retardants of Examples 6-10 are in component A, wherein,

Embodiment 6

[0063] 20 parts by weight of embodiment 6 magnesium hydroxide

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 relates to a preparation method for a two-composition fireproof silicone sealant. The method comprises the following steps: 1) adding 100 parts by weight of alpha, omega-dihydroxy polysiloxanes and 10-60 parts by weight of a filler / flame retardant composite composition into a kneading machine, performing mixing dewatering at 110-140 DEG C, under the vacuum degree of 0.06-0.1 MPa for 30-360 min, and cooling to obtain a base material; and 2) successively adding 0.5-2 parts by weight of a cross-linking agent, 0.1-0.5 part by weight of a catalyst and 5-20 parts by weight of methyl silicone oil into a high-speed dispersion machine, mixing with the above base material at room temperature under the vacuum degree of 0.06-0.1 MPa with the rotation speed of 600 rpm for 30-120 min, so as to obtain the fireproof silicone sealant. The silicone sealant prepared by using the method is capable of providing excellent flame retardation performance without reducing the mechanical properties of the system.

Description

technical field [0001] The invention relates to the field of silicone sealants, in particular to a two-component fireproof silicone sealant. Background technique [0002] With the continuous expansion of the application field of polymer materials, silicone materials are used more and more widely, covering almost all industrial fields, and are highly valued. As a class of polymer materials with excellent properties, it has been widely used and is known as the monosodium glutamate of modern industry. [0003] Silicone polymers are polymers that contain elemental silicon in their molecular structure and are connected to organic groups on silicon atoms. They are usually divided into four categories: silicone oil, silicone resin, silicone rubber, and silane coupling agent. Silicone sealant is a type of silicone rubber. Silicone sealant is processed by adding filler, reinforcing agent, coupling agent, catalyst and other components to silicone polymer. Its main chain is composed...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C09J183/06C09J183/04C09J11/04C09J11/06C09K3/10
Inventor 严华宁
Owner 江苏华硅新材料科技有限公司