Release agent for pultrusion molding process of glass fiber reinforced plastic and preparation method thereof
A technology of pultrusion and release agent, which is applied in the field of release agent and preparation of glass fiber reinforced plastic pultrusion process, can solve the problems that the compatibility cannot meet the requirements of use, reduce the mechanical properties of products, etc., and achieve strong protection, The effect of improving mechanical properties and simple method
Active Publication Date: 2013-06-05
TIANCHANG TIANGUANG ORGANIC GLASS
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AI Technical Summary
Problems solved by technology
[0002] In the FRP pultrusion process, the release agent must be used. The commonly used release agents include metal soaps, fatty acids, fatty acid esters, and olefin waxes. However, the above types of release agents are different from each other in different materials. The compatibility of the resin matrix cannot meet the requirements of use, and often reduces the mechanical properties of the product
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment 1
[0015] (1) Prepare materials according to the following weight percentages: 15% of C8-10 alcohol, 45% of C12-14 alcohol, 30% of phosphorus pentoxide, 6% of soybean oil, and 4% of silicone oil;
[0016] (2) Add mixed alcohol and phosphorus pentoxide to the reactor, raise the temperature to 80° C. and keep it for 3 hours, so that the two react to obtain phosphoric acid ester;
[0017] (3) Soybean oil is added in the reactor, fully stirred for 1 hour;
[0018] (4) Add silicone oil into the reaction kettle, fully stir for 1 hour, and obtain a release agent for FRP pultrusion after standing still, which is a light yellow oily liquid with a specific gravity of 0.9 at 25°C.
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The invention discloses a release agent for a pultrusion molding process of glass fiber reinforced plastic and a preparation method thereof. The release agent is prepared by taking 60 weight percent of mixed alcohol, 20 to 30 weight percent of phosphorus pentoxide, 8 to 12 weight percent of soybean oil and 2 to 8 weight percent of silicon oil as raw materials, and using a simple and manageable method, has good compatibility with different resin matrices and can improve the mechanical properties of molds. The release agent is particularly suitable for the pultrusion molding process of the glass fiber reinforced plastic.
Description
technical field [0001] The invention relates to the field of chemical auxiliary agents, in particular to a release agent used in the pultrusion molding process of glass fiber reinforced plastics and a preparation method thereof. Background technique [0002] In the FRP pultrusion process, the release agent must be used. The commonly used release agents include metal soaps, fatty acids, fatty acid esters, and olefin waxes. However, the above types of release agents are different from each other in different materials. The compatibility of the resin matrix cannot meet the requirements of use, and often reduces the mechanical properties of the product. Contents of the invention [0003] The object of the present invention is to provide a kind of release agent used in the pultrusion molding process of FRP, which has good compatibility with different resin matrices and can improve the mechanical properties of the mold; another object of the present invention is to provide the ...
Claims
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IPC IPC(8): B29C33/60C08L83/04C08K5/521
Inventor 张广月
Owner TIANCHANG TIANGUANG ORGANIC GLASS