CN105482086A - High-temperature impasto anti-miliaria light resin and preparation method thereof - Google Patents

Abstract

The invention discloses high-temperature impasto anti-miliaria light resin and a preparation method thereof. The resin is prepared by a two-step method and then is diluted; the chemical and physical properties of the resin are as follows: appearance is less than or equal to no. 1 (fe-co), fineness is less than or equal to 10 mu. m, an acid value is less than or equal to 15mg of KOH/g, hydroxy content is less than or equal to 145 plus/minus 10mg of KOH/g, solid content is 80 plus/minus 2 percent, and viscosity is 30000 plus/minus 5000mps/25 DEG C. The resin is high-weather-resistance saturated polyester modified alkyd resin formed by isocaprylic acid and coconut oil, the molecular structure configuration is very characteristic, and the weather resistance of self-drying saturated polyester and the general characters of high fullness and high gloss of Acrawax are all achieved. After the high-temperature impasto anti-miliaria light resin is prepared into high light varnish/white paint, impasto is performed under a high temperature environment, defects such as miliaria and hidden bubbles on a board difficultly occur, a better board effect is achieved, and the problem of difficult construction of a high light wood lacquer under a high temperature environment is well solved.

Description

High gentle and kind painting anti-prickly heat light resin and preparation method thereof

[technical field]

The present invention relates to a kind of high gentle and kind painting anti-prickly heat light resin and preparation method thereof, belong to woodwork coating production technical field.

[background technology]

In furniture, finishing woodwork coating field, the Analysis of resin decides woodwork coating salient features and embodies, and improves resin and uses performance namely to promote corresponding Coating Market share.Current woodwork coating market is construction spraying Gao Guangqing/white finish paint in high temperature season or high temperature spray room, the plate face disadvantages such as often easy heat rash appears when thick painting, dark bubble; Thin spray is difficult to again the effect reaching high light microscopic face, high fullness ratio.Construction producer can only improve spray room, select the shady and cool measure such as time or multipass Lacquer finish sooner or later to complete, and increases work difficulty, but the uncertain good result that can obtain, this has just limited to the use of woodware high-gloss coating.

[summary of the invention]

The object of the invention is to overcome prior art defect, when providing a kind of high gentle and kind paintings, not easily heat rash appears for plate face effect, the disadvantage such as dark bubble and still there is the plentiful anti-prickly heat light resin with high gloss general character of height.

Another object of the present invention is to provide a kind of preparation method of above-mentioned resin.

The present invention for achieving the above object, by the following technical solutions:

High gentle and kind painting anti-prickly heat light resin, its formula is characterised in that and comprises following weight percent composition:

Stage one,

Stage two,

Stage three,

(12) butyl ester 15-18%.

The preparation method of the high gentle and kind painting of the present invention anti-prickly heat light resin, is characterized in that comprising the steps:

1) check production system and get out each raw material by formula;

2) 1. the Oleum Cocois in order in the stage one, glycol ether, backflow dimethylbenzene put into reactor from scale tank, to add in reactor and be uniformly dispersed after oxidation inhibitor clear water is equaled 1 to 3 dilution by oxidation inhibitor than water before adding;

3) just solid material tetramethylolmethane, tetrahydrophthalic anhydride, phenylformic acid drop into reactor successively again, after leading to nitrogen 10min by flow 5L/min after good seal batching hole, start heat temperature raising, the dynamic stirring of pilot can start shooting after being warmed up to 110 ± 2 DEG C of material dissolutions, in heating up process, need omnidistance logical nitrogen;

4) be rapidly heated arrival 190 DEG C time, now there is backflow in still, the cooling water valve of vertical for reactor condenser, horizontal condenser being opened, being adjusted to about 1/4 water yield by controlling reflowing result well, continue to be rapidly heated to 215 ± 2 DEG C of insulation 1.5h;

5) stage one is incubated complete, lower the temperature immediately, open nitrogen valve during cooling and lead to nitrogen by flow 3L/min, after dropping to 160 DEG C, 2. stage two material isocaprylic acid and backflow dimethylbenzene are put into reactor from scale tank, then powder TriMethylolPropane(TMP) and phthalic anhydride is put into reactor, closed feed opening, omnidistance lasting maintenance, leads to nitrogen by flow 3L/min, is again warmed up to after there is backflow and is incubated 1 hour;

6) then average rate 10 DEG C/h is warmed up to 220 ± 2 DEG C of insulation reaction, and starts to get sample in still and carry out the operation of production intermediate controlled, and sampling per hour detects once, within every 0.5 hour after grignard pipe viscosity reaches 10s, detects once, until viscosity Eligibility requirements;

7) when middle process sampling test grignard viscosity reach 15s qualified after, open cooling oil cooling immediately, when question response still temperature drops to 160 DEG C, open reactor bottom valve and be transferred in another thinning vessel, with stage 3 material butyl ester latting drown, be in harmonious proportion and evenly can obtain modified resin.Lead to again into packaging filter, discharging of weighing.

The chemico-physical properties of light resin of the present invention is:

Outward appearance≤1# (iron cobalt), fineness≤10 μm, acid number≤15mgKOH/g, hydroxy radical content 145 ± 10mgKOH/g, admittedly containing 80 ± 2%, viscosity 30000 ± 5000mps/25 DEG C.

Check in the present invention that production system comprises: first test-run a machine monitoring device is normal, whether lifting oil temperature system is normal, and check that whether reactor is clean, whether bottom valve closes.

1. 2. material is identical with dimethylbenzene for dimethylbenzene in the present invention, and just different steps adds and distinguishes by sequence number.

High-brightness light varnish or white finish paint is made by wood lacquer recipe requirements when resin of the present invention uses.

Compared with prior art, the present invention has the following advantages:

The present invention forms high-weatherability saturated polyester class modified alkyd resin by isocaprylic acid and the Oleum Cocois system of conjunction, and the arrangement of its molecular structure has characteristic, has, high gloss general character plentiful from the height of dryness saturated polyester weathering resistance and Acrawax.To construct in high temperature environments after making high-brightness light varnish/white paint thick painting, not easily heat rash appears for plate face effect, the disadvantage such as dark bubble, obtain good plate face effect, difficult problem of constructing under well solving high light wood lacquer hot environment.

[embodiment]

Below in conjunction with specific embodiment, the present invention will be further described:

1, resin property of the present invention

Table 1: each component proportion of Resin Example 1-6 of the present invention

The preparation method of embodiment 1-6 resin is:

1) check production system and get out each raw material by formula;

2) 1. the Oleum Cocois in order in the stage one, glycol ether, backflow dimethylbenzene put into reactor from scale tank, to add in reactor and be uniformly dispersed after oxidation inhibitor clear water is equaled 1 to 3 dilution by oxidation inhibitor than water before adding;

3) successively solid material tetramethylolmethane, tetrahydrophthalic anhydride, phenylformic acid are dropped into reactor again, after leading to nitrogen 10min by flow 5L/min after good seal batching hole, start heat temperature raising, after being warmed up to 110 ± 2 DEG C of material dissolutions, pilot is dynamic stirs start, omnidistance logical nitrogen is needed in heating up process, can be little of 1L/min after normal reflow to appear;

4) be rapidly heated arrival 190 DEG C time, now there is backflow in still, the cooling water valve of vertical for reactor condenser, horizontal condenser being opened, being adjusted to about 1/4 water yield by controlling reflowing result well, continue to be rapidly heated to 215 ± 2 DEG C of insulation 1.5h;

5) stage one is incubated complete, lower the temperature immediately, open nitrogen valve during cooling and lead to nitrogen by flow 3L/min, after dropping to 160 DEG C, 2. stage two material isocaprylic acid and backflow dimethylbenzene are put into reactor from scale tank, then powder TriMethylolPropane(TMP) and phthalic anhydride is put into reactor, closed feed opening, omnidistance lasting maintenance, leads to nitrogen by flow 3L/min, is again warmed up to after there is backflow and is incubated 1 hour;

6) then average rate 10 DEG C/h is warmed up to 220 ± 2 DEG C of insulation reaction, and starts to get sample in still and carry out the operation of production intermediate controlled, and sampling per hour detects once, within every 0.5 hour after grignard pipe viscosity reaches 10s, detects once, until viscosity Eligibility requirements;

7) when middle process sampling test grignard viscosity reach 15s qualified after, open cooling oil cooling immediately, when question response still temperature drops to 160 DEG C, open reactor bottom valve and be transferred in another thinning vessel, with stage 3 material butyl ester latting drown, be in harmonious proportion and evenly can obtain modified resin.Lead to again into packaging filter, discharging of weighing.

The test result of embodiment 1-6 all meets as follows:

Outward appearance≤1# (iron cobalt), fineness≤10 μm, acid number≤15mgKOH/g, hydroxy radical content 145 ± 10mgKOH/g, admittedly containing 80 ± 2%, viscosity 30000 ± 5000mps/25 DEG C.

2, painting contrast:

Use the embodiment of the present invention 1 (No. 1) respectively, embodiment 3 (No. 2), the resin of embodiment 6 (No. 3) is made into high-brightness light varnish or high-brightness light white finish paint as resin with identical proportioning with three wood 3880 (No. 4), Changxing 3755 (No. 5).

The concrete proportioning of high light varnish is:

Obtained 1-5 varnish is joined paint spray plate: same ratio is with joining company JA50 solidifying agent and HWP-10 thinner, and sheets thus obtained surface hardness, fullness ratio, luster effect comparing result are as shown in table 2:

I.e. 6 times 60 × 60 plates of the table thick painting of 2:(three crosses)

Test item	No. 1	No. 2	No. 3	No. 4	No. 5
						Surface drying	18 minutes	18	18	22 minutes	18 minutes
Do solid work	3 hours 8 minutes	3 hours 15 minutes	3 hours 10 minutes	4 hours	3 hours 40 minutes
						Levelling	Excellent+	Excellent+	Excellent+	Excellent	Excellent-
Hardness (24h)	2H	2H-	2H	HB	H
						Hardness (7 days)	3H	3H-	3H	H	2H
Fullness ratio	Excellent+	Excellent	Excellent+	Excellent-	Excellent
						Gloss (24h)	105	104	105	103	106
Gloss (7 days)	101	100	101	97	100

Same obtained 1-5 varnish is joined paint spray plate: same ratio is with joining company JA50 solidifying agent and HWP-10 thinner, and heat rash appears, it is as shown in table 3 secretly to steep result for the weather-proof effect comparison of plate top-coat paint film in not temperature environment:

Thick painting three crosses i.e. 6 times 60 × 60 plates in table 3:(differing temps environment)

By the concrete proportioning of 1-5 resin formulations Cheng Gaoguang white finish paint be:

Obtained I-V white paint is joined paint spray plate: same ratio is with joining company JA50 solidifying agent and HWP-10 thinner, and sheets thus obtained surface hardness, fullness ratio, luster effect comparing result are as shown in table 4:

I.e. 6 times 60 × 60 plates of the table thick painting of 4:(three crosses)

Same obtained I-V white paint is joined paint spray plate: same ratio is with joining company JA50 solidifying agent and HWP-10 thinner, and heat rash appears, it is as shown in table 5 secretly to steep result for the weather-proof effect comparison of plate top-coat paint film in not temperature environment:

Thick painting three crosses i.e. 6 times 60 × 60 plates in table 5:(differing temps environment)

As can be seen from table 2-table 5, varnish and the white paint of the present invention's preparation all can keep good plate face effect when 30-40 DEG C of thick painting, while ensureing paint film fullness ratio and gloss hardness, overcome the defect that heat rash appears.

Claims (3)

1. high gentle and kind painting anti-prickly heat light resin, is characterized in that comprising following weight percent composition:

Stage one,

Stage two,

Stage three,

(12) butyl ester 15-18%.

2. the preparation method of the gentle and kind painting of height according to claim 1 anti-prickly heat light resin, is characterized in that comprising the steps:

1) check production system and get out each raw material by formula;

2) 1. the Oleum Cocois in order in the stage one, glycol ether, backflow dimethylbenzene put into reactor from scale tank, to add in reactor and be uniformly dispersed after oxidation inhibitor clear water is equaled 1 to 3 dilution by oxidation inhibitor than water before adding;

3) successively solid material tetramethylolmethane, tetrahydrophthalic anhydride, phenylformic acid are dropped into reactor again, after leading to nitrogen 10min by flow 5L/min after good seal batching hole, start heat temperature raising, after being warmed up to 110 ± 2 DEG C of material dissolutions, pilot is dynamic stirs start, needs omnidistance logical nitrogen in heating up process;

4) be rapidly heated arrival 190 DEG C time, now there is backflow in still, the cooling water valve of vertical for reactor condenser, horizontal condenser being opened, being adjusted to about 1/4 water yield by controlling reflowing result well, continue to be rapidly heated to 215 ± 2 DEG C of insulation 1.5h;

5) stage one is incubated complete, lower the temperature immediately, open nitrogen valve during cooling and lead to nitrogen by flow 3L/min, after dropping to 160 DEG C, 2. stage two material isocaprylic acid and backflow dimethylbenzene are put into reactor from scale tank, then powder TriMethylolPropane(TMP) and phthalic anhydride is put into reactor, closed feed opening, omnidistance lasting maintenance, leads to nitrogen by flow 3L/min, is again warmed up to after there is backflow and is incubated 1 hour;

6) then average rate 10 DEG C/h is warmed up to 220 ± 2 DEG C of insulation reaction, and starts to get sample in still and carry out the operation of production intermediate controlled, and sampling per hour detects once, within every 0.5 hour after grignard pipe viscosity reaches 10s, detects once, until viscosity Eligibility requirements;

7) when middle process sampling test grignard viscosity reach 15s qualified after, open cooling oil cooling immediately, when question response still temperature drops to 160 DEG C, open reactor bottom valve and be transferred in another thinning vessel, with stage 3 material butyl ester latting drown, be in harmonious proportion and evenly can obtain modified resin.Lead to again into packaging filter, discharging of weighing.

3. the preparation method of the gentle and kind painting of height according to claim 2 anti-prickly heat light resin, is characterized in that the chemico-physical properties of the light resin prepared is:

Outward appearance≤1# (iron cobalt), fineness≤10 μm, acid number≤15mgKOH/g, hydroxy radical content 145 ± 10mgKOH/g, admittedly containing 80 ± 2%, viscosity 30000 ± 5000mps/25 DEG C.