Unlock instant, AI-driven research and patent intelligence for your innovation.
Preparation method of flame retardant silane coupling agent
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A flame retardant silane coupling agent, silane coupling agent technology, applied in the field of preparation of flame retardant silane coupling agent, can solve the problems of high price, research is still in the initial stage, complex process, etc.
Active Publication Date: 2016-03-30
JUSHI GRP CO
View PDF3 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
However, the functionalization of silane coupling agents, especially the research on flame retardant properties, is still in its infancy: Chinese Patent Application Publication No. CN101613370A discloses a flame retardant modified silane coupling agent containing nitrogen and phosphorus and its preparation method, It uses a phosphorus compound containing an active reactive group to react with a silane coupling agent to prepare a flame-retardant modified silane coupling agent containing nitrogen and phosphorus
This method introduces phosphorus into the molecule, so that this type of silane coupling agent has a good flame retardant effect, but due to the complex process of this method, and the poor water solubility of the prepared silane coupling agent, the price is relatively high. Its application in the field of glass fiber manufacturing is limited, so a simple method for preparing a flame-retardant modified silane coupling agent is needed, so that the silane coupling agent made by this method can improve the performance of glass fibers and resins. Improving the flame retardant performance of glass fibers while maintaining surface compatibility
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
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
preparation example Construction
[0010] The preparation method of the flame-retardant silane coupling agent of the present invention uses acetone as a solvent, uses the silane coupling agent containing amino groups as a reaction matrix, adds flame-retardant (non-toxic) epoxy resin, and stirs at room temperature for 1 to 2 hours under the condition of nitrogen protection. Finally, the solvent is removed, and the resulting viscous liquid product contains a flame-retardant modified silane coupling agent.
[0011] As a special case, the flame-retardant epoxy resin is selected from brominated epoxy resin, its chemical structure is R1Br4Om, R1 can be phenolic alkanes, m can be one or more oxygen atoms, and the epoxy equivalent range At 300-500, the content of bromine element is more than 50%.
[0012] The present invention utilizes acetone as a solvent for dissolving brominated epoxy resin.
[0013] The silane coupling agent described in the present invention is a common silane coupling agent NH2yRSiX3 containing ...
Embodiment 1
[0017] Dissolve a certain amount of brominated resin A (epoxy equivalent 400) in a three-necked flask filled with a certain amount of acetone solution filled with nitrogen, stir until the mixture is uniform, add a certain amount of A1100 coupling agent dropwise, and keep room temperature after the dropwise addition After reacting for 1 hour, the solvent was removed. The viscous liquid obtained after the reaction is completed is the final product. The reaction ratio of brominated resin and A1100 in the experiment is shown in Table 1, and the reaction process and products are shown in figure 1 .
[0018] Thermogravimetric analysis test: the sample is carried out thermogravimetric test with TAQ100 type thermogravimetric instrument, test result is shown in Table 2.
Embodiment 2
[0020] According to the method of Example 1, replace a certain amount of brominated resin A with brominated resin B (epoxy equivalent 430) and dissolve it in a three-necked flask filled with a certain amount of acetone solvent filled with nitrogen, stir until the mixture is uniform, and drop a certain amount of amount of A1100 coupling agent, keep the reaction at room temperature for 1 hour after the dropwise addition, and remove the solvent. The viscous liquid obtained after the reaction is completed is the final product. The experimental proportions are shown in Table 1, and the product obtained in Example 2 was also subjected to a thermogravimetric test according to the method of Implementation 1, and the test results are shown in Table 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
Login to View More
Abstract
The invention relates to a preparation method of a flame-retardant silane coupling agent. In the invention, acetone is used as a solvent, a silane coupling agent containing an amino group is used as a reaction matrix, a flame-retardant epoxy resin is added, and the mixture is stirred at room temperature for 1 hour under the condition of nitrogen protection. After ~2 hours, the solvent is removed, and the obtained viscous liquid product contains the flame-retardant modified silane coupling agent. The flame-retardant epoxy resin is brominated epoxy resin, whose chemical structure is R1Br4Om, R1 is phenolic alkanes, the epoxy equivalent ranges from 300 to 500, and the bromine content is above 50%. The silane coupling agent adopts the silane coupling agent NH2yRSiX3 containing an amino group of an active reactive group, wherein R represents an alkylene group, X represents a group capable of hydrolysis, and y represents one or more active amino groups. The invention has the characteristics of simple process and low cost, improves the compatibility between glass fiber and resin surface, improves the flame retardancy of glass fiber, and expands its application range in the field of glass fiber.
Description
technical field [0001] The invention relates to a preparation method of a flame-retardant silane coupling agent. Background technique [0002] Silane coupling agent is an auxiliary agent that can improve the adhesion between inorganic substances and organic substances. Its molecules contain two groups with different properties. Chemical reaction; the other is an organophilic group that can physically or chemically react with organic polymers, so coupling agents are often called "molecular bridges" to improve the interface between inorganic and organic substances. Thereby greatly improving various properties of the composite material. Silane coupling agent is not only the most important type of coupling agent in the coupling agent, but also the most important type of coupling agent in the glass fiber reinforced composite material industry, the most widely used type of coupling agent, silane coupling agent in the surface treatment of glass fiber, Since the hydrolyzable group...
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
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More 
Login to View More