Preparation method for resin with spraying-free metal effect
A metal effect, spray-free technology, applied in the field of resin preparation, can solve the problems of insufficient bonding strength of the coating layer, weak polarity of functional groups, and peeling off of the protective layer, etc., to achieve excellent compatibility and good processing Sexuality, good dispersion effect
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Embodiment 1
[0023] In the first step, 10 parts of aluminum powder pigment, 20 parts of SAN-GMA copolymer (GMA content 2%), 0.2 part of ethyltriphenylphosphine bromide and 70 parts of PA757 particles are placed in the mixer in parts by weight. Control the stirring speed to 200rpm, and low-speed stirring treatment for 10min.
[0024] In the second step, put the uniformly stirred premixed material in an internal mixer at a temperature of 210° C., and process it at a low speed for 10 minutes to obtain block aluminum powder pigment.
[0025] The third step is to crush the above-mentioned block material, extrude and granulate through twin-screw, and the extrusion temperature is 210°C to obtain the coated aluminum powder and pigment masterbatch.
Embodiment 2
[0027] In order to better verify the effect of GMA content in SAN-GMA, this example is specifically compared.
[0028] In the first step, 10 parts of aluminum powder pigment, 20 parts of SAN-GMA copolymer (GMA content 5%), 0.2 part of ethyltriphenylphosphine bromide and 70 parts of PA757 particles are placed in the mixer in parts by weight. Control the stirring speed to 200rpm, and low-speed stirring treatment for 10min.
[0029] In the second step, put the uniformly stirred premixed material in an internal mixer at a temperature of 210° C., and process it at a low speed for 10 minutes to obtain block aluminum powder pigment.
[0030] The third step is to crush the above-mentioned block material, extrude and granulate through twin-screw, and the extrusion temperature is 210°C to obtain the coated aluminum powder and pigment masterbatch.
Embodiment 3
[0032] In order to better verify the influence of GMA content in SAN-GMA, this example is further compared and implemented.
[0033] In the first step, 10 parts of aluminum powder pigment, 20 parts of SAN-GMA copolymer (8% GMA content), 0.2 part of ethyltriphenylphosphine bromide and 70 parts of PA757 particles are placed in the mixer in parts by weight. Control the stirring speed to 200rpm, and low-speed stirring treatment for 10min.
[0034] In the second step, put the uniformly stirred premixed material in an internal mixer at a temperature of 210° C., and process it at a low speed for 10 minutes to obtain block aluminum powder pigment.
[0035] The third step is to crush the above-mentioned block material, extrude and granulate through twin-screw, and the extrusion temperature is 210°C to obtain the coated aluminum powder and pigment masterbatch.
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