CN101724121B - High-solid low-viscosity thermoplastic acrylic resin and preparation method thereof - Google Patents
High-solid low-viscosity thermoplastic acrylic resin and preparation method thereof Download PDFInfo
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- 229920000178 Acrylic resin Polymers 0.000 title claims abstract description 39
- 239000004925 Acrylic resin Substances 0.000 title claims abstract description 39
- 239000007787 solid Substances 0.000 title claims abstract description 34
- 229920001169 thermoplastic Polymers 0.000 title claims abstract description 27
- 239000004416 thermosoftening plastic Substances 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title 1
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims abstract description 45
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims abstract description 45
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims abstract description 42
- LSXWFXONGKSEMY-UHFFFAOYSA-N di-tert-butyl peroxide Chemical compound CC(C)(C)OOC(C)(C)C LSXWFXONGKSEMY-UHFFFAOYSA-N 0.000 claims abstract description 26
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims abstract description 24
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 24
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims abstract description 21
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims abstract description 21
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 17
- JIGUQPWFLRLWPJ-UHFFFAOYSA-N Ethyl acrylate Chemical compound CCOC(=O)C=C JIGUQPWFLRLWPJ-UHFFFAOYSA-N 0.000 claims abstract description 11
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 10
- 239000002994 raw material Substances 0.000 claims description 8
- 229920006352 transparent thermoplastic Polymers 0.000 claims description 7
- 230000035484 reaction time Effects 0.000 claims description 2
- 238000001914 filtration Methods 0.000 abstract 1
- 238000004806 packaging method and process Methods 0.000 abstract 1
- 238000000576 coating method Methods 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000004630 mental health Effects 0.000 description 2
- 238000010422 painting Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000008096 xylene Substances 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
Description
技术领域technical field
本发明涉及一种高固低粘热塑性丙烯酸树脂，本发明还涉及一种制备该丙烯酸树脂的方法。The invention relates to a high-solid and low-viscosity thermoplastic acrylic resin, and also relates to a method for preparing the acrylic resin.
背景技术Background technique
热塑性丙烯酸树脂是一种性能优良的涂料。广泛用于汽车、航空、玩具的表面涂装，耐候耐老化是其它涂料不能替代的。Thermoplastic acrylic resin is an excellent performance coating. It is widely used in the surface coating of automobiles, aviation and toys, and its weather resistance and aging resistance cannot be replaced by other coatings.
传统的热塑性丙烯酸树脂固体份低，一般固体份不超过50％，而且粘度高，一般在25℃时的粘度在30000以上，不易涂刷，会拉刷子，涂层流平性不好、丰满度差、混溶性不好，需要大量的溶剂稀释，为了克服上述缺陷制备高固低粘的高性能的丙烯酸树脂是解决诸多缺陷的技术关键。Traditional thermoplastic acrylic resins have low solid content, generally no more than 50% solid content, and high viscosity, generally above 30,000 at 25°C, which is not easy to paint, will pull the brush, and the coating has poor leveling and fullness Poor, miscibility is not good, needs a large amount of solvents to dilute, in order to overcome above-mentioned defect and prepare high-solid low-viscosity high-performance acrylic resin is the technical key that solves many defects.
发明内容Contents of the invention
本发明的目的是为了克服现有技术中的不足之处，提供一种固体份含量高、粘度低、施工使用方便的热塑性丙烯酸树脂。The purpose of the present invention is to overcome the deficiencies in the prior art and provide a thermoplastic acrylic resin with high solid content, low viscosity and convenient construction and use.
本发明另一个目的是提供一种工艺简单，生产方便的用于制备上述丙烯酸树脂的方法。Another object of the present invention is to provide a method for preparing the above-mentioned acrylic resin with simple process and convenient production.
为了达到上述目的，本发明采用以下方案：In order to achieve the above object, the present invention adopts the following scheme:
一种高固低粘热塑性丙烯酸树脂，按重量百分比包括以下组份：A high-solid low-viscosity thermoplastic acrylic resin, comprising the following components by weight percentage:
A组份：Component A:
1、丙烯酸 0.5-2％1. Acrylic acid 0.5-2%
2、甲基丙烯酸甲酯 10-30％2. Methyl methacrylate 10-30%
3、苯乙烯 15-35％3. Styrene 15-35%
4、丙烯酸乙酯 5-15％4. Ethyl acrylate 5-15%
5、丙烯酰胺 1.0-5.4％5. Acrylamide 1.0-5.4%
B组份：Component B:
1、甲苯 15-35％1. Toluene 15-35%
2、醋酸乙酯 10-25％2. Ethyl acetate 10-25%
C组份Component C
二叔丁基过氧化氢 0.3-1％。Di-tert-butyl hydroperoxide 0.3-1%.
如上所述的一种高固低粘热塑性丙烯酸树脂，按重量百分比包括以下组份：A kind of high-solid low-viscosity thermoplastic acrylic resin as described above comprises the following components by weight percentage:
A组份：Component A:
1、丙烯酸 0.6-1.5％1. Acrylic acid 0.6-1.5%
2、甲基丙烯酸甲酯 12-25％2. Methyl methacrylate 12-25%
3、苯乙烯 20-30％3. Styrene 20-30%
4、丙烯酸乙酯 7-12％4. Ethyl acrylate 7-12%
5、丙烯酰胺 1.5-4.4％5. Acrylamide 1.5-4.4%
B组份：Component B:
1、甲苯 20-30％1. Toluene 20-30%
2、醋酸乙酯 15-20％2. Ethyl acetate 15-20%
C组份Component C
二叔丁基过氧化氢 0.5-1％。Di-tert-butyl hydroperoxide 0.5-1%.
一种制备高固低粘热塑性丙烯酸树脂的方法，其包括以下步骤：A method for preparing a high-solid low-viscosity thermoplastic acrylic resin, comprising the following steps:
a、按照上述各组份所述的比例，先将B组份投入反应釜，用氮气置换反应釜中的空气加热至100-140℃；a. According to the proportions of the above-mentioned components, first put component B into the reactor, replace the air in the reactor with nitrogen and heat to 100-140°C;
b、向步骤a中的反应釜滴加A组份和C组份并控制在1-4小时内滴加完毕，其中C组份要分开来滴加；b. Add component A and component C dropwise to the reaction kettle in step a and control the dropwise addition within 1-4 hours, and component C should be added dropwise separately;
c、步骤b完成后再反应6-10小时，测定固体份的含量，达到预定值后过滤、包装即得水白透明的热塑性丙烯酸树脂。c. After step b is completed, react for 6-10 hours, measure the content of solid content, filter and pack after reaching a predetermined value to obtain a water-white and transparent thermoplastic acrylic resin.
如上所述的方法，其中步骤a中用氮气置换反应釜中的空气加热至125℃。The above-mentioned method, wherein in step a, the air in the reactor is replaced with nitrogen and heated to 125°C.
如上所述的方法，其中步骤b中滴加A组份和C组份控制在4小时内滴加完毕。The above-mentioned method, wherein the dropwise addition of component A and component C in step b is controlled within 4 hours to complete the dropwise addition.
如上所述的方法，其中步骤c所述的反应时间为8小时。The method as described above, wherein the reaction time described in step c is 8 hours.
如上所述的方法，其中步骤c所述的预定值为50-70％。The method as above, wherein the predetermined value in step c is 50-70%.
如上所述的方法，其中步骤c所述的预定值为60％。The method as above, wherein the predetermined value in step c is 60%.
本发明所述的原材料均为市场销售产品：Raw material described in the present invention is market product:
1、丙烯酸：为上海高桥石化丙烯酸厂生产；1. Acrylic acid: produced for Shanghai Gaoqiao Petrochemical Acrylic Acid Factory;
2、甲基丙烯酸甲酯：为上海高桥石化丙烯酸厂生产；2. Methyl methacrylate: produced for Shanghai Gaoqiao Petrochemical Acrylic Acid Plant;
3、丙烯酸乙酯：为上海高桥石化丙烯酸厂生产；3. Ethyl acrylate: produced for Shanghai Gaoqiao Petrochemical Acrylic Acid Plant;
4、丙烯酰胺：为哈尔滨化工四厂生产；4. Acrylamide: produced for Harbin Chemical No. 4 Plant;
5、苯乙烯：为吉林化工公司生产；5. Styrene: produced for Jilin Chemical Company;
6、二叔丁基过氧化氢：为北京市北郊精细化工厂生产。6. Di-tert-butyl hydroperoxide: produced by Beijing Beijiao Fine Chemical Factory.
综上所述，本发明的有益效果：In summary, the beneficial effects of the present invention:
一、本发明热塑性丙烯酸树脂，具有优良的耐候性和户外耐久性；1. The thermoplastic acrylic resin of the present invention has excellent weather resistance and outdoor durability;
二、本发明热塑性丙烯酸树脂保光保色性佳，在紫外线照射下不易变色；2. The thermoplastic acrylic resin of the present invention has good gloss and color retention, and is not easy to change color under ultraviolet irradiation;
三、本发明热塑性丙烯酸树脂水白透明、耐酸碱、耐油；3. The thermoplastic acrylic resin of the present invention is water white and transparent, acid and alkali resistant, and oil resistant;
四、利用本发明方法制得的热塑性丙烯酸树脂，可直接用二甲苯稀释成25-30固含即可喷涂刷涂，克服了传统的丙烯酸树脂施工粘度与固体份之间的矛盾，涂膜丰满度好，流动展平性好，溶剂释放性好，实干快，混溶性好；4. The thermoplastic acrylic resin prepared by the method of the present invention can be directly diluted with xylene to 25-30 solid content and can be sprayed and brushed, which overcomes the contradiction between the traditional acrylic resin construction viscosity and solid content, and the coating film is plump Good viscosity, good flow and flattening, good solvent release, fast drying, good miscibility;
五、目前国内热塑性丙烯酸树脂固含最高的只达50％，且粘度大于30000cps/25℃，而本发明热塑性丙烯酸树脂固体份高、粘度低，其中固含为50-70％，粘度15000-20000cps/25℃，且施工稀释溶剂少，有利于环境保护，及施工人员的身心健康，适用于汽车修补、户外涂装，户外装修。5. At present, the highest solid content of thermoplastic acrylic resin in China is only 50%, and the viscosity is greater than 30000cps/25°C, while the thermoplastic acrylic resin of the present invention has high solid content and low viscosity, wherein the solid content is 50-70%, and the viscosity is 15000-20000cps /25℃, and less diluting solvent for construction, which is beneficial to environmental protection and the physical and mental health of construction workers. It is suitable for automobile repair, outdoor painting, and outdoor decoration.
具体实施方式Detailed ways
下面结合具体实施方式对本发明做进一步描述：The present invention will be further described below in conjunction with specific embodiment:
实施例1Example 1
本发明高固低粘热塑性丙烯酸树脂的原材料的配方：The formula of the raw material of high-solid low-viscosity thermoplastic acrylic resin of the present invention:
A组份：Component A:
1、丙烯酸 0.6g1. Acrylic acid 0.6g
2、甲基丙烯酸甲酯 30g2. Methyl methacrylate 30g
3、苯乙烯 15g3. Styrene 15g
4、丙烯酸乙酯 5g4. Ethyl acrylate 5g
5、丙烯酰胺 5.4g5. Acrylamide 5.4g
B组份：Component B:
1、甲苯 18g1. Toluene 18g
2、醋酸乙酯 25g2. Ethyl acetate 25g
C组份：C component:
二叔丁基过氧化氢 1gDi-tert-butyl hydroperoxide 1g
按上述组份的含量，将甲苯、醋酸乙酯投入反应釜，用氮气置换反应釜中的空气，并加热至100℃，向所述反应釜中滴加丙烯酸、甲基丙烯酸甲酯、苯乙烯、丙烯酰胺和二叔丁基过氧化氢，控制在1小时内滴加完毕，其中二叔丁基过氧化氢要分开来滴加，比如先滴加丙烯酸、甲基丙烯酸甲酯、苯乙烯、丙烯酰胺再滴加二叔丁基过氧化氢，滴加完毕后再反应6小时，测定固体份的含量，达到50％后过滤、包装即得水白透明的热塑性丙烯酸树脂溶液。According to the content of the above components, put toluene and ethyl acetate into the reaction kettle, replace the air in the reaction kettle with nitrogen, and heat to 100°C, add acrylic acid, methyl methacrylate, styrene dropwise into the reaction kettle , acrylamide and di-tert-butyl hydroperoxide, control the dropwise addition within 1 hour, wherein di-tert-butyl hydroperoxide should be added dropwise separately, such as first dropwise adding acrylic acid, methyl methacrylate, styrene, Add di-tert-butyl hydroperoxide dropwise to the acrylamide, react for 6 hours after the dropwise addition, measure the solid content, filter and package after the solid content reaches 50%, and obtain a water-white and transparent thermoplastic acrylic resin solution.
实施例2Example 2
本发明高固低粘热塑性丙烯酸树脂的原材料的配方：The formula of the raw material of high-solid low-viscosity thermoplastic acrylic resin of the present invention:
A组份：Component A:
1、丙烯酸 2g1. Acrylic acid 2g
2、甲基丙烯酸甲酯 10g2. Methyl methacrylate 10g
3、苯乙烯 135g3. Styrene 135g
4、丙烯酸乙酯 15g4. Ethyl acrylate 15g
5、丙烯酰胺 1g5. Acrylamide 1g
B组份：Component B:
1、甲苯 26g1. Toluene 26g
2、醋酸乙酯 10g2. Ethyl acetate 10g
C组份：C component:
二叔丁基过氧化氢 1gDi-tert-butyl hydroperoxide 1g
按上述组份的含量，将甲苯、醋酸乙酯投入反应釜，用氮气置换反应釜中的空气，并加热至140℃，向所述反应釜中滴加丙烯酸、甲基丙烯酸甲酯、苯乙烯、丙烯酰胺和二叔丁基过氧化氢，控制在4小时内滴加完毕，其中二叔丁基过氧化氢要分开来滴加，比如先滴加丙烯酸、甲基丙烯酸甲酯、苯乙烯、丙烯酰胺再滴加二叔丁基过氧化氢，滴加完毕后再反应10小时，测定固体份的含量，达到70％后过滤、包装即得水白透明的热塑性丙烯酸树脂溶液。According to the content of the above components, put toluene and ethyl acetate into the reactor, replace the air in the reactor with nitrogen, and heat it to 140°C, add acrylic acid, methyl methacrylate, styrene dropwise into the reactor , acrylamide and di-tert-butyl hydroperoxide, the dropwise addition should be completed within 4 hours, wherein di-tert-butyl hydroperoxide should be added dropwise separately, such as first dropwise adding acrylic acid, methyl methacrylate, styrene, Add di-tert-butyl hydroperoxide dropwise to the acrylamide, react for 10 hours after the dropwise addition, measure the solid content, and when it reaches 70%, filter and package to obtain a water-white and transparent thermoplastic acrylic resin solution.
实施例3Example 3
本发明高固低粘热塑性丙烯酸树脂的原材料的配方：The formula of the raw material of high-solid low-viscosity thermoplastic acrylic resin of the present invention:
A组份：Component A:
1、丙烯酸 1.5g1. Acrylic acid 1.5g
2、甲基丙烯酸甲酯 25g2. Methyl methacrylate 25g
3、苯乙烯 24.7g3. Styrene 24.7g
4、丙烯酸乙酯 12g4. Ethyl acrylate 12g
5、丙烯酰胺 1.5g5. Acrylamide 1.5g
B组份：Component B:
1、甲苯 20g1. Toluene 20g
2、醋酸乙酯 15g2. Ethyl acetate 15g
C组份：C component:
二叔丁基过氧化氢 0.3gDi-tert-butyl hydroperoxide 0.3g
按上述组份的含量，将甲苯、醋酸乙酯投入反应釜，用氮气置换反应釜中的空气，并加热至120℃，向所述反应釜中滴加丙烯酸、甲基丙烯酸甲酯、苯乙烯、丙烯酰胺和二叔丁基过氧化氢，控制在2小时内滴加完毕，其中二叔丁基过氧化氢要分开来滴加，比如先滴加丙烯酸、甲基丙烯酸甲酯、苯乙烯、丙烯酰胺再滴加二叔丁基过氧化氢，滴加完毕后再反应7小时，测定固体份的含量，达到55％后过滤、包装即得水白透明的热塑性丙烯酸树脂溶液。According to the content of the above components, put toluene and ethyl acetate into the reactor, replace the air in the reactor with nitrogen, and heat it to 120°C, add acrylic acid, methyl methacrylate, styrene dropwise into the reactor , acrylamide and di-tert-butyl hydroperoxide, the dropwise addition is controlled within 2 hours, wherein di-tert-butyl hydroperoxide should be added dropwise separately, such as first dropwise adding acrylic acid, methyl methacrylate, styrene, Add di-tert-butyl hydroperoxide dropwise to the acrylamide, react for 7 hours after the dropwise addition, measure the solid content, and when it reaches 55%, filter and package to obtain a water-white and transparent thermoplastic acrylic resin solution.
实施例4Example 4
本发明高固低粘热塑性丙烯酸树脂的原材料的配方：The formula of the raw material of high-solid low-viscosity thermoplastic acrylic resin of the present invention:
A组份：Component A:
1、丙烯酸 0.6g1. Acrylic acid 0.6g
2、甲基丙烯酸甲酯 17g2. Methyl methacrylate 17g
3、苯乙烯 20g3. Styrene 20g
4、丙烯酸乙酯 7g4. Ethyl acrylate 7g
5、丙烯酰胺 4.4g5. Acrylamide 4.4g
B组份：Component B:
1、甲苯 30g1. Toluene 30g
2、醋酸乙酯 20g2. Ethyl acetate 20g
C组份：C component:
二叔丁基过氧化氢 1gDi-tert-butyl hydroperoxide 1g
按上述组份的含量，将甲苯、醋酸乙酯投入反应釜，用氮气置换反应釜中的空气，并加热至130℃，向所述反应釜中滴加丙烯酸、甲基丙烯酸甲酯、苯乙烯、丙烯酰胺和二叔丁基过氧化氢，控制在3小时内滴加完毕，其中二叔丁基过氧化氢要分开来滴加，比如先滴加丙烯酸、甲基丙烯酸甲酯、苯乙烯、丙烯酰胺再滴加二叔丁基过氧化氢，滴加完毕后再反应9小时，测定固体份的含量，达到65％后过滤、包装即得水白透明的热塑性丙烯酸树脂溶液。According to the content of the above components, put toluene and ethyl acetate into the reaction kettle, replace the air in the reaction kettle with nitrogen, and heat to 130°C, add acrylic acid, methyl methacrylate and styrene dropwise into the reaction kettle , acrylamide and di-tert-butyl hydroperoxide, the dropwise addition should be completed within 3 hours, wherein di-tert-butyl hydroperoxide should be added dropwise separately, such as first dropwise adding acrylic acid, methyl methacrylate, styrene, Add di-tert-butyl hydroperoxide dropwise to the acrylamide, react for 9 hours after the dropwise addition, measure the solid content, and when it reaches 65%, filter and pack to obtain a water-white and transparent thermoplastic acrylic resin solution.
实施例6Example 6
本发明高固低粘热塑性丙烯酸树脂的原材料的配方：The formula of the raw material of high-solid low-viscosity thermoplastic acrylic resin of the present invention:
A组份：Component A:
1、丙烯酸 1g1. Acrylic acid 1g
2、甲基丙烯酸甲酯 20g2. Methyl methacrylate 20g
3、苯乙烯 25g3. Styrene 25g
4、丙烯酸乙酯 10g4. Ethyl acrylate 10g
5、丙烯酰胺 3.4g5. Acrylamide 3.4g
B组份：Component B:
1、甲苯 25g1. Toluene 25g
2、醋酸乙酯 15g2. Ethyl acetate 15g
C组份：C component:
二叔丁基过氧化氢 0.6gDi-tert-butyl hydroperoxide 0.6g
按上述组份的含量，将甲苯、醋酸乙酯投入反应釜，用氮气置换反应釜中的空气，并加热至125℃，向所述反应釜中滴加丙烯酸、甲基丙烯酸甲酯、苯乙烯、丙烯酰胺和二叔丁基过氧化氢，控制在4小时内滴加完毕，其中二叔丁基过氧化氢要分开来滴加，比如先滴加丙烯酸、甲基丙烯酸甲酯、苯乙烯、丙烯酰胺再滴加二叔丁基过氧化氢，滴加完毕后再反应8小时，测定固体份的含量，达到60％后过滤、包装即得水白透明的热塑性丙烯酸树脂溶液。According to the content of the above components, put toluene and ethyl acetate into the reactor, replace the air in the reactor with nitrogen, and heat it to 125°C, add acrylic acid, methyl methacrylate, styrene dropwise into the reactor , acrylamide and di-tert-butyl hydroperoxide, the dropwise addition should be completed within 4 hours, wherein di-tert-butyl hydroperoxide should be added dropwise separately, such as first dropwise adding acrylic acid, methyl methacrylate, styrene, Add di-tert-butyl hydroperoxide dropwise to the acrylamide, react for 8 hours after the dropwise addition, measure the solid content, and when it reaches 60%, filter and package to obtain a water-white and transparent thermoplastic acrylic resin solution.
本发明实施例1-5中各热塑性丙烯酸树脂的性能指标为：The performance index of each thermoplastic acrylic resin in the embodiment of the present invention 1-5 is:
本发明热塑性丙烯酸树脂，可直接用二甲苯稀释成25-30固含来喷涂刷涂，流平刷涂性能良好，保光保色性佳，丰满度好，固含高，粘度低(目前国内热塑性丙烯酸树脂固含最高的只达50％，且粘度大于30000cps/25℃)有利于环境保护及施工者的身心健康，适用于汽车修补、户外涂装，户外装修。The thermoplastic acrylic resin of the present invention can be directly diluted with xylene to 25-30 solid content for spraying and brushing. The highest solid content of thermoplastic acrylic resin is only 50%, and the viscosity is greater than 30,000cps/25°C), which is beneficial to environmental protection and the physical and mental health of builders. It is suitable for car repair, outdoor painting, and outdoor decoration.
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