Highly-crosslinked acrylate copolymer as well as preparation method and application thereof as thickening agent
A technology of cross-linking acrylates and acrylates, applied in the direction of multi-color effect coatings, etc., can solve the problems of inability to protect multi-color paint, unable to meet the application, thickening efficiency defects, etc., and achieve good system compatibility and storage stability , to ensure the effect of suspension and stability, surface densification
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Embodiment 1
[0044] A highly cross-linked acrylic acid ester copolymer, the composition of its synthetic formula is as shown in Table 1:
[0045] Table 1
[0046] raw material Mass / g AAA 40 HEMA 40 TMPDE 0.82 Hypermer B246 0.16 AIBN 0.08 BPO 0.08 Cyclohexane 160 n-Hexane 160 ethyl acetate 400
[0047] The steps of the highly cross-linked acrylic copolymer synthesized by this formula are as follows:
[0048] 1) Add 160g of cyclohexane, 160g of n-hexane and 400g of ethyl acetate into a four-necked flask, connect the condenser, start stirring, and mix well;
[0049] 2) Add 40g monomer AA, 40g monomer HEMA, 0.82g crosslinking agent TMPDE, 0.16g stabilizer Hypermer B246 and 0.08g initiator AIBN and 0.04g initiator BPO into a four-necked flask until the initiator is completely dissolved. Bubble nitrogen for 20-30 minutes;
[0050] 3) Heating in a water bath, raising the temperature to 75°C, reacting for 3 hours, raising the ...
Embodiment 2
[0054] A highly cross-linked acrylic ester copolymer, its synthetic formula composition is as shown in Table 2:
[0055] Table 2
[0056]
[0057]
[0058] The synthesis steps of Example 2 are similar to those of Example 1, and will not be repeated here. The product C2 and sample A2 obtained according to this formula.
Embodiment 3
[0060] A highly cross-linked acrylic acid ester copolymer, its synthetic formula composition is as table 3:
[0061] table 3
[0062] raw material Mass / g AAA 25 MAA 15 HEMA 30 triallyl sucrose ether 0.3 TMPDE 0.4 Hypermer B246 0.14 AIBN 0.07 BPO 0.07 Cyclohexane 150 n-Hexane 150 ethyl acetate 330
[0063] The synthesis steps of Example 3 are similar to those of Example 1, and will not be repeated here. The product C3 and sample A3 obtained according to this formula.
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