Indoor physical matting agent test report

- Nov 17, 2017 -

Indoor physical matting agent test report

1. Test purpose

 

Physical matting agents have three problems to note, first, the storage stability, low luster disappear, if the storage stability is not good, the powder made more than a month luster or appearance becomes sand grain, powder plant use is Do not worry, the auxiliaries are also always worried about the problem; the second is the adaptability of polyester, polyester that most manufacturers should be able to better extinction, or auxiliaries have the ability to adjust for different polyester to adapt Physical matting agent; Third, the extinction effect, including gloss and leveling, of course, to meet the previous two conditions is the lower the amount of matting agent as low as possible.

 

Polyester Adaptability and Extinction Effect Powder plants can produce results on the spot, storage stability will take some time before they can be found, so storage stability is particularly noteworthy for additive suppliers and powder mills. After our research, storage stability and gelation time, by measuring the gelling time can quickly determine the storage stability. Gel time and the actual storage time has the following experience corresponds to:

Gel time

40second

50second

60second

Longer

Storage time

70day

80day

90day

Longer

Note: The general gel time longer than 40 seconds storage stability is better.

 

2.test methods

Test using the following formula (in this experiment called ingredients)

Material name

Ingredients

Epoxy

120 grams

Polyester

120

Barium sulfate

160

Carbon black

3

L88 leveling agent

4

L701 luminous agent

4

L307 benzoin

2

Polyester Resin: The experiment tested 5/5 polyesters from 6 manufacturers and 6/4 polyesters from 6 manufacturers, counting 13 models to test the adaptability of physical matting agents.

 

Physical matting agent: The experiment mainly uses the 2031 physical matting agent produced by Wuhan Yincai Company for testing, and compares the physical matting agents of 4 domestic manufacturers.

 

Extrusion temperature: 110-120 ℃, (Yantai Donghui 30 experimental extruder)

 

Gel time: 180 ℃ (Wuhan Yincai company's gel time tester)

Baking conditions: 180 ℃ 15 minutes

 

3.specific test process and conclusions

3.1 Different manufacturers 5/5 polyester extinction effect and gel time

5/5 polyester manufacturer model

Dongguan Friends of the 327A

Zhongshan Kennedy 001

Hangzhou Sino-French5086

One hundred and 9801

Yongjia Sanli 4500

Hangzhou Sino-French5050

Anhui sword 3B

Ingredients

400

400

400

400

400

400

400

2031 matting agent

16

16

16

16

16

16

16

luster

7

7.5

8.5

10.3

11

12.9

13.8

Gel time

41

82

55

50

98

105

120

Leveling

As can be seen from the table: (1) 7 5/5 models of polyester can better extinction, 2031 shows a wide adaptability to polyester, Dongguan Youbang 327A, Zhongshan Kennedy 001, Hangzhou, China and France 5086 extinction Lower; and gel time longer is Yongjia Sanli 4500, Hangzhou, France 5050, Excalibur 3B, indicating that the three models of polyester storage stability better. (2) According to experience, the gelling time is more than 40 seconds, storage stability can be more than 2 months, 7 models of polyester shortest gelation time of 41 seconds, up to 120 seconds long, indicating 2031 storage stability is better.

 

3.2 different manufacturers 6/4 polyester matting effect and gel time

6/4 polyester

Manufacturer model

Yongjia Sanli

6058 polyester

XY-6040 polyester

Dongguan AU

327D polyester

Hangzhou Sino-French

6055 polyester

Full Feng

9402 Wuxi polyester

Zhongshan Jian-ji

004 polyester

6/4 polyester

144

144

144

144

144

144

Hengyuan epoxy

96

96

96

96

96

96

Ultra-fine barium

160

160

160

160

160

160

L88

4

4

4

4

4

4

L701

4

4

4

4

4

4

Benzoin

2

2

2

2

2

2

Carbon black

3

3

3

3

3

3

2031 matting agent

16

16

16

16

16

16

 110-120degree      180*15min

luster

14

12

28

37

32

11.5

Gel time

25秒

22

57

74

95

48

Leveling

×

×

×

As can be seen from the table: Most manufacturers 6 to 4 polyester is not suitable for matting extinction of physical matte finish, some gloss is difficult to eliminate lower, and some leveling is not very good, and some gel time is too short. Only Zhongshan Jian-004 overall performance is still relatively good. Although 6 to 4 polyester alone extinction is not ideal, according to the powder factory technician to reflect and 5 to 5 polyester with better extinction can be obtained.

 

3.3 different levels of physical matting agent gloss and gelling time changes.

2031 to add the amount

1%

2%

3%

4%

5%

Ingredients

400

400

400

400

400

2031 matting agent

4

8

12

16

20

luster

52.5

32.5

10.8

8.2

8

Gel time

217

170

114

77

37

Leveling

5 samples are good

Note: The test is used Huangshan epoxy, Zhongshan Jianli 001 polyester.

  Add the corresponding gloss curve as follows:

luster%

Add volume%

 

As can be seen from the table and the figure, when the physical matting agent 2031 is added to 3%, the gloss is rapidly reduced to 10 degrees. When it exceeds 4%, the dosage is further increased and the gloss reduction is small. Therefore, it is recommended that the amount of 2031 should not exceed 4%.

 

The following figure is 2031 Matting agent additive amount and gelation time corresponding map:

Gel time

Add amount

     As can be seen from the above figure with the physical matting agent added to increase the gel time decreased linearly decreased, so from the storage stability to consider the amount to be controlled, 2031 4% of the amount of gel time 77 seconds (greater than 40 Sec) for the safety of the range, but the characteristics of each polyester is not the same, it is best to measure the production of our own gelation time, so bottom of mind.

 

3.4 Different manufacturers physical matting agent contrast test

The same material and formula contrast test four manufacturers physical matting agent


Matting agent manufacturers

Wuhan Yincai matting agent 2031

Anhui production matting agent

Zhejiang matting agent

Guangdong matting agent

Ingredients

400

400

400

400

Matting agent dosage

16

16

16

16

luster

7.6

8.3

6.7

14.7

Gel time

77

85

54

101

Leveling

4 sample flow is very good


Note: The test is used Huangshan epoxy, Zhongshan Jianli 001 polyester.

As can be seen from the table, the four manufacturers of physical matting agents have their own characteristics, the production of Zhejiang matting agent luster lower, gelling time shorter 54 seconds (greater than 40 seconds storage stability should be qualified), Wuhan silver color production 2031 matting agent in the middle of the indicators, the overall performance is better, to achieve the gloss, leveling, storage stability of the three take into account the unity of the rest assured that the use of powder plant.

 

Physical matting agent is more popular in recent years, the product, this product comes from abroad, the development of more rapid in our country, has exceeded the level of foreign, in addition to the development of the earlier Jetta, the rising star Guangzhou Ze and Hefei Ketai, Wuhan silver Choi is currently more active. Wuhan silver color biggest advantage and advantage of the main raw material resin synthesis of their own production, with cost advantages, according to their own need to synthesize the desired base resin. Wuhan Yincai is also one of the few companies in China that know and understand the principle and preparation technology of matting agent. The resin produced by Wuhan Yincai can be sold to the outside world, but it does not provide applied technical services and sales customers will keep confidential.