Wuhan Hyundai PVDC composite membrane www.handern.com hollow board equipment
DATE：2020/4/14 8:32:00 / READ： / SOURCE：This station
Wuhan Hyundai PVDC composite membrane www.handern.com hollow board equipment
Add human resin to form a slurry while stirring the diluent, and then slowly pour into the solvent. Heat the solvent slightly before dissolution to accelerate the dissolution speed. The mixing must be covered to prevent the solvent from escaping. The formulated paint will produce a small amount of sediment after a period of inactivity. Generally, the prepared paint is required to be used within 48h to ensure the coating effect. Www.handern.com Hollow board equipment
3) Plasticizer, in order to make the coating film have initial and softness or need to improve the low temperature performance, can be added to the latex www.handern.com hollow board equipment
Plasticizer. Generally speaking, polymeric plasticizers, such as FyCr * plasticizers (Hycar I reactive liquid polymer, product of BF-goodrich, USA), have less effect on the gas barrier properties of PVDC, but on some resins, Saran F resin, www.handern.com hollow board equipment
Solvent-based phthalate, sebacate, and triglyceride can also be used
.
Adding 1% to 2.5% wax in the latex paint formulation can greatly improve the slip and anti-blocking properties. One or two or more waxes with a mixture of saturated and unsaturated fatty acid amides having 12 to 22 carbon atoms are used. Mouth 10 today www.handern.com hollow board equipment
(2) The quality requirements of PVDC latex should be as follows before using I PVDC coated latex
) Coating property, the BOPP film (20pm) whose surface has been oxidized, coated with polyurethane adhesive for acetic acid column test www.handern.com hollow board equipment
B solution, the coating amount is about 0.3gm2, under the condition of 80 ℃, put it in a hot air oven to dry 30, and then coat the coated surface with the surface tension adjusted to 40mNm (20 ℃), the amount is m, then, Under the condition of 80 ℃, put the DC latex into the oven. According to the conversion of solid content, the coating is considered to be of poor quality and dried 30. If there are some cracks and bumps, then
2) Anti-blocking property, on a BOP film sample with a length of 50cm, a width of 15cm, and a thickness of 20pm, coated with PVDC for the test, which is added with a common 0.2 parts of today's silicon compound (Fujira ヒ リ ソ, trade name サ イ ロ ィ ヒ) After drying, the latex is made into a film coated with PVDC resin. Immediately roll the coated film with a tension of (25 ± 1) N onto a PVC pipe with a smooth surface of 2.54cm in diameter. After the film is rolled, the end of the film is adhered with adhesive tape and placed at 40 ℃ for 4h. Then slowly unwind and observe the adhesion of the coated surface. It is better for the public to prepare for the fact that there is no blocking phenomenon between the film and the film substrate or the unevenness on the surface of the film substrate is not imprinted on the surface of the coating film. www.handern.com Hollow board equipment
3) The film-forming life of PVDC latex. Store the PVDC latex used in the test under the condition of (20 ± 1) ℃, so as to replace the coating at any time, from the use of poly until the cracks on the coating film. The time-consuming, up to 3 months is the hollow board equipment with good coating performance www.handern.com.
4) Oxygen permeability, coat the BOPA film with the PVDC latex used in the test to make a film coated with PVDC, and cure at 40 ℃ for 48 hours, and then place it at 20 ℃, 90% relative humidity for adjustment The humidity test lasted 2 days and was measured at 20 ° C and 90% relative humidity using an oxygen permeability analyzer. Then its www.handern.com hollow board equipment
3. PVDC latex-coated film is intended for painting. 001-.28 Yuanmei Japanese (1) PVDC / PE and PVDC / PP films are polypolar (PE, PB, etc.) because they are non-polar molecules and stick to PVDC The knot force is poor, so the film must be corona treated or coated with a primer material before coating. If it is sufficiently treated, a water-soluble primer or a self-adhesive emulsion primer material can generally be used. It is more difficult to die. For polyethylene film, it is more difficult to apply PVDC emulsion. Because its softening range is very low, and its elongation is relatively high, all industries must be strictly coordinated. mQ8.0 = を 0 ま freehand. A total of three www.handern.com hollow board equipment was shown in the case
PVDC latex is coated on PE, PP, PVC, PS, PET, PA films, and its barrier properties include water vapor barrier 2. The gas barrier properties of HO and C are greatly improved. Partial PVDC coating barrier made in Japan, www.handern.com hollow board equipment
Add human resin to form a slurry while stirring the diluent, and then slowly pour into the solvent. Heat the solvent slightly before dissolution to accelerate the dissolution speed. The mixing must be covered to prevent the solvent from escaping. The formulated paint will produce a small amount of sediment after a period of inactivity. Generally, the prepared paint is required to be used within 48h to ensure the coating effect. Www.handern.com Hollow board equipment
3) Plasticizer, in order to make the coating film have initial and softness or need to improve the low temperature performance, can be added to the latex www.handern.com hollow board equipment
Plasticizer. Generally speaking, polymeric plasticizers, such as FyCr * plasticizers (Hycar I reactive liquid polymer, product of BF-goodrich, USA), have less effect on the gas barrier properties of PVDC, but on some resins, Saran F resin, www.handern.com hollow board equipment
Solvent-based phthalate, sebacate, and triglyceride can also be used
.
Adding 1% to 2.5% wax in the latex paint formulation can greatly improve the slip and anti-blocking properties. One or two or more waxes with a mixture of saturated and unsaturated fatty acid amides having 12 to 22 carbon atoms are used. Mouth 10 today www.handern.com hollow board equipment
(2) The quality requirements of PVDC latex should be as follows before using I PVDC coated latex
) Coating property, the BOPP film (20pm) whose surface has been oxidized, coated with polyurethane adhesive for acetic acid column test www.handern.com hollow board equipment
B solution, the coating amount is about 0.3gm2, under the condition of 80 ℃, put it in a hot air oven to dry 30, and then coat the coated surface with the surface tension adjusted to 40mNm (20 ℃), the amount is m, then, Under the condition of 80 ℃, put the DC latex into the oven. According to the conversion of solid content, the coating is considered to be of poor quality and dried 30. If there are some cracks and bumps, then
2) Anti-blocking property, on a BOP film sample with a length of 50cm, a width of 15cm, and a thickness of 20pm, coated with PVDC for the test, which is added with a common 0.2 parts of today's silicon compound (Fujira ヒ リ ソ, trade name サ イ ロ ィ ヒ) After drying, the latex is made into a film coated with PVDC resin. Immediately roll the coated film with a tension of (25 ± 1) N onto a PVC pipe with a smooth surface of 2.54cm in diameter. After the film is rolled, the end of the film is adhered with adhesive tape and placed at 40 ℃ for 4h. Then slowly unwind and observe the adhesion of the coated surface. It is better for the public to prepare for the fact that there is no blocking phenomenon between the film and the film substrate or the unevenness on the surface of the film substrate is not imprinted on the surface of the coating film. www.handern.com Hollow board equipment
3) The film-forming life of PVDC latex. Store the PVDC latex used in the test under the condition of (20 ± 1) ℃, so as to replace the coating at any time, from the use of poly until the cracks on the coating film. The time-consuming, up to 3 months is the hollow board equipment with good coating performance www.handern.com.
4) Oxygen permeability, coat the BOPA film with the PVDC latex used in the test to make a film coated with PVDC, and cure at 40 ℃ for 48 hours, and then place it at 20 ℃, 90% relative humidity for adjustment The humidity test lasted 2 days and was measured at 20 ° C and 90% relative humidity using an oxygen permeability analyzer. Then its www.handern.com hollow board equipment
3. PVDC latex-coated film is intended for painting. 001-.28 Yuanmei Japanese (1) PVDC / PE and PVDC / PP films are polypolar (PE, PB, etc.) because they are non-polar molecules and stick to PVDC The knot force is poor, so the film must be corona treated or coated with a primer material before coating. If it is sufficiently treated, a water-soluble primer or a self-adhesive emulsion primer material can generally be used. It is more difficult to die. For polyethylene film, it is more difficult to apply PVDC emulsion. Because its softening range is very low, and its elongation is relatively high, all industries must be strictly coordinated. mQ8.0 = を 0 ま freehand. A total of three www.handern.com hollow board equipment was shown in the case
PVDC latex is coated on PE, PP, PVC, PS, PET, PA films, and its barrier properties include water vapor barrier 2. The gas barrier properties of HO and C are greatly improved. Partial PVDC coating barrier made in Japan, www.handern.com hollow board equipment
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