A kind of synthetic method of zinc acrylate resin
A technology of zinc acrylate and synthesis method, which is applied in the direction of biocide-containing paints, coatings, antifouling/underwater coatings, etc., can solve the problems of poor product structure and performance stability, complex methods, etc., and achieve simple production control and raw materials. Easy to get, small product ingredients
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Embodiment 1
[0035] The synthetic method of zinc acrylate resin in the present embodiment may further comprise the steps:
[0036] 1) Put the solvent and zinc-containing compound into the reaction kettle first, and raise the temperature to 120-135°C, and keep reflux;
[0037] 2) Then add the mixture of acrylic acid monomer, rosin and part of the initiator in the reactor, and add it dropwise into the reactor;
[0038] 3) After the dropwise addition is completed, react for 1 hour, then add the remaining part of the initiator, and continue the insulation reaction to form a resin.
[0039] The proportioning ratio of each raw material component in embodiment 1 is shown in table 1.
[0040] The zinc acrylate resin obtained in this embodiment is a transparent yellow liquid, its acid value is 93mgKOH / g, solid content is 50.2%, viscosity: 180 seconds (coating-4 cups / 25 ℃), number average molecular weight is: 30815; The melting temperature is 42°C.
Embodiment 2
[0042] The synthetic method of zinc acrylate resin in the present embodiment may further comprise the steps:
[0043] 1) Put the solvent and zinc-containing compound into the reaction kettle first, and raise the temperature to 120-135°C, and keep reflux;
[0044] 2) Then add the mixture of acrylic acid monomer, rosin and part of the initiator to the reactor, and add it dropwise to the reactor;
[0045] 3) After the dropwise addition is completed, react for 1 hour, then add the remaining part of the initiator, and continue the heat preservation reaction to form the resin
[0046] The proportioning ratio of each raw material component in embodiment 2 is as shown in table 1.
[0047] The zinc acrylate resin obtained in the present embodiment is a transparent yellow liquid, its acid value is 89mgKOH / g, solid content is 51.8%, viscosity: 180 seconds (coating-4 cups / 25 ℃), number average molecular weight is: 48900; The melting temperature is 50°C.
[0048] Table 1
[0049]
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Embodiment 3
[0052] The synthetic method of zinc acrylate resin in the present embodiment may further comprise the steps:
[0053] 1) Put the solvent and zinc-containing compound into the reaction kettle first, and raise the temperature to 120-135°C, and keep reflux;
[0054] 2) Then add the mixture of acrylic acid monomer, rosin and part of the initiator, and drop it into the reactor;
[0055] 3) After the dropwise addition is completed, react for 1 hour, then add the remaining part of the initiator, and continue the insulation reaction to form a resin.
[0056] The proportioning ratio of each raw material component in embodiment 3 is as shown in table 2.
[0057] The zinc acrylate resin obtained in this embodiment is a transparent yellow liquid, its acid value is 78mgKOH / g, solid content is 49.5%, viscosity: 180 seconds (coating-4 cups / 25 ℃), number average molecular weight is: 42760; The melting temperature is 47°C.
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Abstract
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