Preparation method of special paint for dust-free writing board
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A dust-free writing board and the technology of its manufacturing method are applied in the direction of polyester coating, epoxy resin coating, coating, etc., which can solve the problems of not being durable, not having long-term writing and wiping, etc.
Active Publication Date: 2017-01-11
CHONGQING SHUOAO TEACHING EQUIP
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Problems solved by technology
[0002] Nowadays, there are many kinds of dust-free writing boards, and they generally do not have the ability to write and wipe for a long time, and they cannot achieve the durable effect.
Method used
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Embodiment 1
[0108] 1) Preparation of No. 1 resin:
[0109] Take the following parts by weight of raw materials:
[0111] 30 parts of silicone polyester resin Hypomer SPE-115,
[0112] Saturated polyester resin DYNAPOL-L658: 50 parts and 20 parts of solvent.
[0113] (1) Add solvent to the reaction kettle at room temperature, and increase the temperature to 80°C at a rate of 1-5°C after addition;
[0114] (2) Add the silicone resin XIAMETER RSN-6018 and the silicone polyester resin Hypomer SPE-115 with the above formula at a speed of 1-5 parts by weight / min under agitation; after adding, at a speed of 1-5°C Raise to 100℃, keep stirring, and keep the temperature constant for 60 minutes;
[0115] (3) Add the saturated polyester resin DYNAPOL-L658 of the above formula at a speed of 1-5 parts by weight / minute, after adding, increase it to 120°C at a speed of 1-5°C, keep stirring, and keep the temperature constant for 3 hours;
[0116] (4) Discharge afte...
Embodiment 2
[0170] 1) Preparation of No. 1 resin:
[0171] Take the following parts by weight of raw materials:
[0173] 15 parts of silicone polyester resin Hypomer SPE-115,
[0174] Saturated polyester resin DYNAPOL-L658: 25 parts and 25 parts of solvent.
[0175] (1) Add 25 parts of solvent to the reaction kettle at room temperature, and increase the temperature to 80°C at a rate of 1-5°C after addition;
[0176] (2) Add the silicone resin XIAMETER RSN-6018 and the silicone polyester resin Hypomer SPE-115 with the above formula at a speed of 1-5 parts by weight / min under agitation; after adding, at a speed of 1-5°C Raise to 100℃, keep stirring, and keep the temperature constant for 60 minutes;
[0177] (3) Add the saturated polyester resin DYNAPOL-L658 of the above formula at a speed of 1-5 parts by weight / minute, after adding, increase it to 120°C at a speed of 1-5°C, keep stirring, and keep the temperature constant for 3 hours;
[0178] (4) Di...
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Abstract
The invention discloses a preparation method of a special paint for a dust-free writing board. The special paint comprises an upper layer paint and a lower layer paint. The method comprises the following steps: 1, preparation of the lower layer colored paint: preparing No.1 resin, preparing No.2 resin, preparing a color paste, blending the paint, etc.; and 2, preparation of the upper layer transparent matt paint: preparing No.3 resin, preparing No.4 resin, blending the paint, etc.. After being used for a writing board, the paint disclosed by the invention has the following advantages: the hardness is high (not lower than 6H), the painted surface is difficult to scratch in the writing process, and the completeness of the writing surface is kept; and in contrast, the board on the market generally only has a hardness of 1-3H, and the board surface is very easy to scratch in the long-term writing process and is unbeneficial to writing. Besides, the paint has high chemical corrosion resistance (the detected hardness can still be up to 3H after soaking in butanone solvent for 72 hours even when the butanone is not volatilized completely, while the hardness of the writing board on the market is only 2B after soaking in butanone for 2 hours), excellent weather resistance and favorable wear resistance.
Description
Technical field [0001] The invention relates to a manufacturing method of a special paint for a dust-free writing board. Background technique [0002] There are many types of dust-free writing boards, and they generally do not have long-term writing and wiping, and they cannot achieve durable effects. Summary of the invention [0003] In order to solve the above-mentioned problems, the present invention provides a method for manufacturing durable, dust-free writing board special paint. [0004] In order to achieve the above-mentioned object, the method for manufacturing a special paint for a dust-free writing board of the present invention at least includes the steps of manufacturing a lower layer of paint: [0005] 1) Preparation of No. 1 resin: [0006] Take the following parts by weight of raw materials: [0007] Silicone resin XIAMETER RSN-6018: 20-50 parts, [0008] 15-30 parts of silicone polyester resin Hypomer SPE-115, [0009] Saturated polyester resin DYNAPOL-L658: 25-50 parts ...
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
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Application Information
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