High-adhesion thermoset acrylic resin and preparation method thereof

Abstract

The invention discloses high-adhesion thermoset acrylic resin which comprises, by weight, 18-25 parts of dimethylbenzene, 5-10 parts of n-butyl alcohol, 8-13 parts of methyl methacrylate, 15-20 parts of ethyl methacrylate, 8-13 parts of methacrylic acid ethyl ester, 15-25 parts of styrene, 8-15 parts of functionality polyester resin, 0.8-1.5 parts of functionality mix addition catalyst and 0.8-1.5 parts of grafting couplant. The functionality polyester resin comprises, by weight, 28-33 parts of neopentyl glycol, 12-17 parts of trimethylolproprane, 5-10 parts of adipic acid and 40-50 parts of isophthalic acid and is obtained through esterification synthesis by using a high-temperature melting method. The functionality mix addition catalyst is mixture of 8-12 parts of peroxidation 2-ethylhexoic acid tert-butyl ester, 20-30 parts of azobisisobutyronitrile, 50-60 parts of peroxidation tertiary butyl and 10-15 parts of tert-butyl perbenzoa. Phenomena of layering, pig skin and livering can not occur during storage and construction of paint made from the high-adhesion thermoset acrylic resin, and good adhesion is achieved when the paint is directly coated on a base material hard to attach.

Description

technical field

[0001] The invention relates to a resin for paint, in particular to a thermosetting acrylic resin with high adhesion and a preparation method thereof. Background technique

[0002] Various hardware workpieces and glass products are widely used in daily life due to their respective advantages. In order to improve its surface decoration and protection, it is an essential means to coat hardware workpieces and glass products. But at present, most coatings are difficult to adhere to some alloys (such as magnesium-aluminum alloy, zinc-aluminum alloy), stainless steel and glass products. In order to improve their adhesion, in the traditional coating method, an adhesion promoter must be added, but This method has problems of poor paint storage stability and poor paint film adhesion durability. It will not be very long; at the same time, it will also make the adhesion of the coating film better in the early stage and worse in the later stage.

[0003] It can be see...

Examples

Embodiment 1

[0026] The high-adhesion thermosetting acrylic resin in this embodiment is made of the following components by weight:

[0027]

[0028] The high adhesion thermosetting acrylic resin of the present embodiment, its preparation method is as follows:

[0029] 1) Put material A into the reaction kettle and stir evenly;

[0030] 2) Add material B dropwise, the reaction temperature in the reactor is controlled at 120°C, and the time for adding material B dropwise is controlled at 3.5-4.5 hours;

[0031] 3) After the dropwise addition is completed, keep the temperature at 100° C. for 2 hours;

[0032] 4) add C material, and keep warm for 5 hours;

[0033] 5) Cool down to within 75°C, filter, and obtain;

[0034] in:

[0035] Material A is mixed by 20 parts by weight of xylene, 10 parts by weight of n-butanol, 10 parts by weight of functional polyester resin, 1 part by weight of graft coupling agent and 0.3 parts by weight of functional mixed addition catalyst ;

[0036] Mate...

Embodiment 2

[0042] The high-adhesion thermosetting acrylic resin in this embodiment is made of the following components by weight:

[0043]

[0044]

[0045] The high adhesion thermosetting acrylic resin of the present embodiment, its preparation method is as follows:

[0046] 1) Put material A into the reaction kettle and stir evenly;

[0047] 2) Add material B dropwise, the reaction temperature in the reactor is controlled at 110°C, and the time for adding material B dropwise is controlled at 4 hours;

[0048] 3) After the dropwise addition is completed, keep the temperature at 110° C. for 2 hours;

[0049] 4) Add C material, and keep warm for another 6 hours;

[0050] 5) Cool down to within 75°C, filter, and obtain;

[0051] in:

[0052] Material A is mixed by 24 parts by weight of xylene, 7 parts by weight of n-butanol, 12 parts by weight of functional polyester resin, 1 part by weight of graft coupling agent and 0.3 parts by weight of functional mixing addition catalyst ; ...

Embodiment 3

[0059] The high-adhesion thermosetting acrylic resin in this embodiment is made of the following components by weight:

[0060]

[0061] The high adhesion thermosetting acrylic resin of the present embodiment, its preparation method is as follows:

[0062] 1) Put material A into the reaction kettle and stir evenly;

[0063] 2) Add material B dropwise, the reaction temperature in the reactor is controlled at 110±10°C, and the time for adding material B dropwise is controlled at 3.5-4.5 hours;

[0064] 3) After the dropwise addition is completed, keep the temperature at 120° C. for 2 hours;

[0065] 4) Add C material, and keep warm for 7 hours;

[0066] 5) Cool down to within 75°C, filter, and obtain;

[0067] in:

[0068] Material A is mixed by 18 parts by weight of xylene, 8 parts by weight of n-butanol, 12 parts by weight of functional polyester resin, 1.5 parts by weight of graft coupling agent and 0.5 parts by weight of functional mixing addition catalyst ;

[0069...

technical field

[0001] The invention relates to a resin for paint, in particular to a thermosetting acrylic resin with high adhesion and a preparation method thereof. Background technique

[0002] Various hardware workpieces and glass products are widely used in daily life due to their respective advantages. In order to improve its surface decoration and protection, it is an essential means to coat hardware workpieces and glass products. But at present, most coatings are difficult to adhere to some alloys (such as magnesium-aluminum alloy, zinc-aluminum alloy), stainless steel and glass products. In order to improve their adhesion, in the traditional coating method, an adhesion promoter must be added, but This method has problems of poor paint storage stability and poor paint film adhesion durability. It will not be very long; at the same time, it will also make the adhesion of the coating film better in the early stage and worse in the later stage.

[0003] It can be see...

Examples

Embodiment 1

[0026] The high-adhesion thermosetting acrylic resin in this embodiment is made of the following components by weight:

[0027]

[0028] The high adhesion thermosetting acrylic resin of the present embodiment, its preparation method is as follows:

[0029] 1) Put material A into the reaction kettle and stir evenly;

[0030] 2) Add material B dropwise, the reaction temperature in the reactor is controlled at 120°C, and the time for adding material B dropwise is controlled at 3.5-4.5 hours;

[0031] 3) After the dropwise addition is completed, keep the temperature at 100° C. for 2 hours;

[0032] 4) add C material, and keep warm for 5 hours;

[0033] 5) Cool down to within 75°C, filter, and obtain;

[0034] in:

[0035] Material A is mixed by 20 parts by weight of xylene, 10 parts by weight of n-butanol, 10 parts by weight of functional polyester resin, 1 part by weight of graft coupling agent and 0.3 parts by weight of functional mixed addition catalyst ;

[0036] Mate...

Embodiment 2

[0042] The high-adhesion thermosetting acrylic resin in this embodiment is made of the following components by weight:

[0043]

[0044]

[0045] The high adhesion thermosetting acrylic resin of the present embodiment, its preparation method is as follows:

[0046] 1) Put material A into the reaction kettle and stir evenly;

[0047] 2) Add material B dropwise, the reaction temperature in the reactor is controlled at 110°C, and the time for adding material B dropwise is controlled at 4 hours;

[0048] 3) After the dropwise addition is completed, keep the temperature at 110° C. for 2 hours;

[0049] 4) Add C material, and keep warm for another 6 hours;

[0050] 5) Cool down to within 75°C, filter, and obtain;

[0051] in:

[0052] Material A is mixed by 24 parts by weight of xylene, 7 parts by weight of n-butanol, 12 parts by weight of functional polyester resin, 1 part by weight of graft coupling agent and 0.3 parts by weight of functional mixing addition catalyst ; ...

Embodiment 3

[0059] The high-adhesion thermosetting acrylic resin in this embodiment is made of the following components by weight:

[0060]

[0061] The high adhesion thermosetting acrylic resin of the present embodiment, its preparation method is as follows:

[0062] 1) Put material A into the reaction kettle and stir evenly;

[0063] 2) Add material B dropwise, the reaction temperature in the reactor is controlled at 110±10°C, and the time for adding material B dropwise is controlled at 3.5-4.5 hours;

[0064] 3) After the dropwise addition is completed, keep the temperature at 120° C. for 2 hours;

[0065] 4) Add C material, and keep warm for 7 hours;

[0066] 5) Cool down to within 75°C, filter, and obtain;

[0067] in:

[0068] Material A is mixed by 18 parts by weight of xylene, 8 parts by weight of n-butanol, 12 parts by weight of functional polyester resin, 1.5 parts by weight of graft coupling agent and 0.5 parts by weight of functional mixing addition catalyst ;

[0069...

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