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Casting wax filler and preparation method thereof

A technology for casting wax and fillers, which is applied in casting and molding equipment, etc., can solve the problems affecting the performance and quality of model wax, single function, poor flow performance, etc.

Active Publication Date: 2021-09-07
青岛新诺科新材料科技发展有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In the patent document with the Chinese patent application number CN107151451A, "A Light Green Model Wax Containing Neutral Filler" is disclosed. In the above-mentioned patent document, a polymer filler is added. Although it has certain fluidity properties, its fluidity properties Poor, single function, lack of oxidation resistance and stability, which affects the performance and quality of the prepared model wax

Method used

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  • Casting wax filler and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0044] Please refer to figure 1 As shown, a filling of casting wax includes the following raw materials in parts by weight: 10 parts of hydrogen-containing silicone oil, 5 parts of a-dodecene, 6 parts of allyl polyether, 6 parts of maleic anhydride, 2 parts of catalyst, Conditioner 9 parts, deionized water 20 parts.

[0045] The hydrogen-containing silicone oil is a side chain silicone oil with a Si-H content of 0.3%.

[0046] The catalyst is chloroplatinic acid.

[0047] The regulator is one of ammonia water and maleic acid.

[0048] A preparation method for a casting wax filling, comprising the following steps:

[0049] Step 1, preparing a long-chain silicone substrate.

[0050] Step 2: modifying the prepared long-chain organic silicon substrate to obtain a modified long-chain organic silicon substrate.

[0051] Step 3, preparing a filling for casting wax.

[0052] The preparation of a long-chain silicone substrate comprises the following steps:

[0053] 101), add hyd...

Embodiment 2

[0066] A casting wax filling provided in this example and its preparation method are roughly the same as in Example 1, the main difference being that it includes the following raw materials in parts by weight: 20 parts of hydrogen-containing silicone oil, 10 parts of a-dodecene, 10 parts of allyl polyether, 11 parts of maleic anhydride, 12 parts of catalyst, 14 parts of regulator, 40 parts of deionized water;

[0067] Regulator is maleic acid;

[0068] In step 103, the reaction time is 3h;

[0069] In step 104, the gauge pressure is 600Hg, and the temperature is 100°C;

[0070] In step 201, the reaction time is 2h;

[0071] In step 301, the temperature is 60° C., and the stirring time is 20 minutes;

[0072] In step 303, the pH value is adjusted to 7.

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Abstract

The invention relates to the technical field of casting wax, in particular to a casting wax filler and a preparation method thereof. The casting wax filler comprises the following raw materials in parts by weight: 10-20 parts of hydrogen-containing silicone oil, 5-10 parts of alpha-dodecene, 6-10 parts of allyl polyether, 6-11 parts of maleic anhydride, 2-12 parts of a catalyst, 9-14 parts of a regulator and 20-40 parts of deionized water. According to the method, hydrogen-containing silicone oil, alpha-dodecene and allyl polyether are used as raw materials, a hydrosilylation addition reaction is utilized to prepare a long-chain organic silicon base material, polyether silicone oil with a hydroxyl-terminated side chain and maleic anhydride are subjected to anion modification to prepare a modified long-chain organic silicon base material, and long-carbon-chain alkyl and polyether are introduced onto a siloxane chain to prepare an organic macromolecular filler, wherein the prepared filler has oxidation resistance, stability and flowability. According to the invention, the quality of the prepared casting wax filler is effectively improved.

Description

technical field [0001] The invention relates to the technical field of casting wax, in particular to a filling of casting wax and a preparation method thereof. Background technique [0002] Casting wax is mainly used to make wax models of various metal casting restorations. The wax requires good fluidity, suitable softening temperature, and low thermal expansion rate. When casting wax, fillers need to be added to improve the performance of the wax. [0003] In the patent document with the Chinese patent application number CN107151451A, "A Light Green Model Wax Containing Neutral Filler" is disclosed. In the above-mentioned patent document, a polymer filler is added. Although it has certain fluidity performance, its fluidity Poor, single function, lack of oxidation resistance and stability, which affects the performance and quality of the prepared model wax. [0004] To sum up, developing a filling for casting wax and its preparation method is still a key problem urgently to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G77/46B22C7/02
CPCC08G77/46B22C7/02
Inventor 邵斌殷凤仕邵琛武超
Owner 青岛新诺科新材料科技发展有限公司