Novel environment-friendly oil and water repellent agent for leather
A waterproof and oil-repellent agent, a new type of technology, applied in the field of waterproof and oil-repellent agents, can solve problems such as the difficulty in reaching the level of perfluorooctyl, and the decline in the performance of waterproof and oil-repellent compositions, so as to achieve excellent waterproof and oil-repellent performance of the product, and waterproof and repellent The effect of excellent oil performance
Inactive Publication Date: 2014-04-30
JUHUA GROUP TECH CENT
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Problems solved by technology
[0008] The disadvantage of the waterproof and oil-repellent composition prepared by the above-mentioned patented technology is that with the reduction of the number of carbon atoms in the fluorine-containing group, the performance of the prepared waterproof and oil-repellent composition decreases, and it is difficult to reach the level of perfluorooctyl
Method used
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Effect test
Embodiment 1
[0043] Add 35 g of CH to a 250 ml reaction vial 2 =CHCH 2 OC 9 f 17 , 15g of CH 2 =CHCOOC 18 h 37 10g of methyl acrylate, 0.6g of azobisisobutyronitrile and 90g of ethyl acetate were reacted at 70°C for 15 hours under stirring, and cooled to normal temperature to obtain a new type of environmentally friendly waterproof and oil-repellent agent for leather.
Embodiment 2
[0045] Divide 35g of CH 2 =CHCH 2 OC 9 f 17 use CH 2 =CHCOO(CH 2 ) 2 OC 9 f 17 Except replacing, all the other are with embodiment 1.
Embodiment 3
[0047] Divide 35g of CH 2 =CHCH 2 OC 9 f 17 With 15g CH 2 =CHCH 2 OC 9 f 17 and 20g CH 2 =CHCH 2 OC 6 f 11 Except replacing, all the other are with embodiment 1.
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The invention discloses a novel environment-friendly oil and water repellent agent for leather. The agent consists of the following components by weight: 4-54 parts of fluorine monomers, 3-40 parts of alkyl acrylate, 1-10 parts of non-fluorinated monomers, 0.08-1 part of an initiator and 56-152 parts of a solvent. The novel environment-friendly oil and water repellent agent for leather provided by the invention does not contain perfluorooctanoic acid compound (PFOA) or perfluorooctane sulfonic acid compounds (PFOS), which cause negative impact on the environment, and has excellent waterproof and oil-proof performances.
Description
technical field [0001] The invention relates to a waterproof and oil-repellent agent, in particular to a novel environment-friendly waterproof and oil-repellent agent for leather. Background technique [0002] Fluoropolymers have incomparable advantages in surface activity, waterproof, oil-proof, anti-fouling, heat resistance and corrosion resistance. [0003] At present, the fluorine-containing part of fluoropolymers is mainly perfluorooctane sulfonic acid (PFOS) and its derivatives. Due to its high persistence and accumulation in the environment, it is potentially dangerous, so it is widely used in developed countries such as the United States and the European Union. The state is strictly restricted. PFOS substitutes have become a new research hotspot, and perfluoroalkyl groups with 6 or less carbon atoms or hexafluoropropylene oligomers as fluorine-containing groups are two effective alternatives. [0004] When preparing water and oil repellent compositions, the focus o...
Claims
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IPC IPC(8): D06M15/353D06M15/277C08F216/14C08F220/18C08F220/28
Inventor 裴金东胡群义张士林
Owner JUHUA GROUP TECH CENT