CN103694414A - Preparation method of fluorine-silicon composite waterproof leather fatliquor - Google Patents

Preparation method of fluorine-silicon composite waterproof leather fatliquor Download PDF

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CN103694414A
CN103694414A CN201310690204.8A CN201310690204A CN103694414A CN 103694414 A CN103694414 A CN 103694414A CN 201310690204 A CN201310690204 A CN 201310690204A CN 103694414 A CN103694414 A CN 103694414A
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fluorine
preparation
silicon
fatting agent
asa
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CN103694414B (en
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李培枝
杨晓武
罗巧丽
赵志芳
马悦
环灿灿
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Shaanxi University of Science and Technology
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Shaanxi University of Science and Technology
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Abstract

The invention relates to a preparation method of a fluorine-silicon composite waterproof leather fatliquor. Present waterproof leather fatliquors mostly have the problems of single function, non-ideal general effects and the like. The preparation method comprises the following steps: mixing ASA (alkenyl succinic anhydride), perfluoroalkyl fluoroethanol and a catalyst to react; reducing the temperature and adding an organic silicon coupling agent and an animation reagent to react; and keeping the temperature of the system changeless and adding deionized water to adjust the solid content after adjusting the pH value, thus obtaining the fluorine-silicon composite waterproof leather fatliquor. The preparation method has the beneficial effects that the fluorine-silicon composite waterproof leather fatliquor is modified by using the petroleum byproduct ASA as the main raw material, is low in cost, contains organic fluorine and organic silicon, can enable the leather subjected to fat liquoring to have toughness in softness and elasticity in fullness and simultaneously has good waterproofness, oilproofness and antifouling property; and the preparation method is safe and environment-friendly, is simple in preparation process and is convenient for production.

Description

The preparation method of the compound leather water-proof fatting agent of a kind of fluorine silicon
Technical field
the invention belongs to fine chemicals fabricating technology field, be specifically related to compound leather water-proof fatting agent of a kind of fluorine silicon and preparation method thereof.
Background technology
Leather fat is one of maximum and requisite processing aid of consumption in tanning production, on improving leather quality and performance, has important impact.In order to give the plentiful softness of leather simultaneously, resilient feel and water resistance just need to adopt the fatting agent with good waterproof action in leather processing procedure.
Organic fluorine compounds is the most effective Water-proofing Materials for Leather, and the leather after fluorochemicals is processed has the property such as waterproof, grease proofing, anti-soil, but use easily makes the leather after stuffing harder separately, and feel is bad; Although siliceous fatting agent can improve the flexibility, wear resistance, slipping of leather etc., meanwhile, also, giving leather certain water-repellancy, use separately water-repellancy not ideal.Therefore, comprehensive organic fluorine and organosilyl advantage, prepare the compound leather water-proof fatting agent of a kind of fluorine silicon, can solve prior art and exist the problems such as function singleness, net effect be undesirable.
Summary of the invention
The object of this invention is to provide compound leather water-proof fatting agent of a kind of fluorine silicon and preparation method thereof, to solve the problems such as function singleness that prior art exists and net effect be undesirable.
The technical solution adopted in the present invention is:
A preparation method for the compound leather water-proof fatting agent of fluorine silicon, is characterized in that:
By following steps, realized:
Step 1: by ASA, perfluoroalkyl fluorine alcohol and catalyzer in its weight ratio 1:(0.6~0.9): the ratio hybrid reaction of (0.002~0.005), the condition of its reaction is: 80~150 ℃, the reaction times is 3~5 hours;
Step 2: system temperature is down to 50~70 ℃, in reaction product, add organo-silicon coupling agent and amination reagent to react, the weight ratio of organo-silicon coupling agent, amination reagent and ASA is (0.1~0.2): (0.3~0.4): 1, and the reaction times is 2~3 hours;
Wherein, described organo-silicon coupling agent is γ-glycidyl ether oxygen propyl trimethoxy silicane;
Step 3: maintenance system is temperature-resistant, adds NaOH solution to regulate pH value to 8~9.5 while stirring; Finally, add deionized water and regulate solid content to 10~20%, obtain the compound leather water-proof fatting agent of a kind of fluorine silicon.
In step 1, perfluoroalkyl fluorine alcohol is selected from perfluor alkyl ethide hexanol, perfluor alkyl ethide octanol or perfluor alkyl ethide decyl alcohol.
In step 1, catalyzer is selected from tosic acid, phosphoric acid or boric acid.
In step 2, amination reagent is selected from diethylamine or triethylamine.
The compound leather water-proof fatting agent of fluorine silicon that the preparation method of the compound leather water-proof fatting agent of a kind of fluorine silicon makes.
The present invention has the following advantages:
(1) effective cost is low: product of the present invention is that main raw material carries out modification with petroleum by-product ASA, with low cost.In molecule, ASA segment has excellent filling stuffing performance, and whole-fluoroalkyl chain segment provides excellent waterproof, grease proofing and antifouling property, and organosilicon coupling improves excellent flexibility, elasticity and toughness.
(2) multi-functional composite synergistic: not only containing organic fluorine but also containing organosilicon, both can make to there is toughness in the leather softness after stuffing, there is elasticity in plentiful, and there is good waterproof, grease proofing and antifouling performance simultaneously.
(3) safety and environmental protection: not containing any organic solvent, take water as dispersion medium when stuffing is used in preparation process, reduced the pollution and harm to environment and operator.
(4) preparation technology is simple: preparation is simple, without particular requirement, is convenient to produce.
Embodiment
Below in conjunction with embodiment, the present invention will be described in detail.
The preparation method of the compound leather water-proof fatting agent of a kind of fluorine silicon involved in the present invention, is realized by following steps:
Step 1: by ASA, perfluoroalkyl fluorine alcohol and catalyzer in its weight ratio 1:(0.6~0.9): the ratio hybrid reaction of (0.002~0.005), the condition of its reaction is: 80~150 ℃, the reaction times is 3~5 hours.
Wherein, perfluoroalkyl fluorine alcohol is selected from perfluor alkyl ethide hexanol, perfluor alkyl ethide octanol or perfluor alkyl ethide decyl alcohol;
Catalyzer is selected from tosic acid, phosphoric acid or boric acid.
Step 2: system temperature is down to 50~70 ℃, in reaction product, add organo-silicon coupling agent and amination reagent to react, the weight ratio of organo-silicon coupling agent, amination reagent and ASA is (0.1~0.2): (0.3~0.4): 1, and the reaction times is 2~3 hours.
Wherein, described organo-silicon coupling agent is γ-glycidyl ether oxygen propyl trimethoxy silicane;
Amination reagent is selected from diethylamine or triethylamine.
Step 3: maintenance system is temperature-resistant, adds NaOH solution to regulate pH value to 8~9.5 while stirring; Finally, add deionized water and regulate solid content to 10~20%, obtain the compound leather water-proof fatting agent of a kind of fluorine silicon.
Alkenyl succinic anhydride (ASA) is the unsaturated hydrocarbon that contains Succinic anhydried side chain on a kind of molecular chain, be alkene and MALEIC ANHYDRIDE generation building-up reactions and product.The carbon chain lengths of general alkene is at C 14-C 20, carbonatoms, more than 20 o'clock, is the thickness amber color liquid of oily at normal temperatures.
Molecular structure is as follows:
Figure 2013106902048100002DEST_PATH_IMAGE002
Embodiment 1:
Step 1: in the ratio hybrid reaction of its weight ratio 1:0.6:0.002, the condition of its reaction is by ASA, perfluoroalkyl fluorine alcohol and catalyzer: 80 ℃, the reaction times is 3 hours.
Wherein, perfluoroalkyl fluorine alcohol is chosen perfluor alkyl ethide hexanol;
Catalyzer is chosen tosic acid.
Step 2: system temperature is down to 50 ℃, adds organo-silicon coupling agent and amination reagent to react in reaction product, the weight ratio of organo-silicon coupling agent, amination reagent and ASA is 0.1:0.3:1, and the reaction times is 2 hours.
Wherein, described organo-silicon coupling agent is γ-glycidyl ether oxygen propyl trimethoxy silicane;
Amination reagent is chosen diethylamine.
Step 3: maintenance system is temperature-resistant, adds NaOH solution to regulate pH value to 8 while stirring; Finally, add deionized water and regulate solid content to 10%, obtain the compound leather water-proof fatting agent of a kind of fluorine silicon.
Embodiment 2:
Step 1: in the ratio hybrid reaction of its weight ratio 1:0.7:0.004, the condition of its reaction is by ASA, perfluoroalkyl fluorine alcohol and catalyzer: 115 ℃, the reaction times is 4 hours.
Wherein, perfluoroalkyl fluorine alcohol is chosen perfluor alkyl ethide octanol;
Catalyzer is chosen phosphoric acid.
Step 2: system temperature is down to 60 ℃, adds organo-silicon coupling agent and amination reagent to react in reaction product, the weight ratio of organo-silicon coupling agent, amination reagent and ASA is 0.15:0.35:1, and the reaction times is 2.5 hours.
Wherein, described organo-silicon coupling agent is γ-glycidyl ether oxygen propyl trimethoxy silicane;
Amination reagent is chosen diethylamine.
Step 3: maintenance system is temperature-resistant, adds NaOH solution to regulate pH value to 9 while stirring; Finally, add deionized water and regulate solid content to 15%, obtain the compound leather water-proof fatting agent of a kind of fluorine silicon.
Embodiment 3:
Step 1: in the ratio hybrid reaction of its weight ratio 1:0.9:0.005, the condition of its reaction is by ASA, perfluoroalkyl fluorine alcohol and catalyzer: 150 ℃, the reaction times is 5 hours.
Wherein, perfluoroalkyl fluorine alcohol is chosen perfluor alkyl ethide decyl alcohol;
Catalyzer is chosen boric acid.
Step 2: system temperature is down to 70 ℃, adds organo-silicon coupling agent and amination reagent to react in reaction product, the weight ratio of organo-silicon coupling agent, amination reagent and ASA is 0.2:0.4:1, and the reaction times is 3 hours.
Wherein, described organo-silicon coupling agent is γ-glycidyl ether oxygen propyl trimethoxy silicane;
Amination reagent is chosen triethylamine.
Step 3: maintenance system is temperature-resistant, adds NaOH solution to regulate pH value to 9.5 while stirring; Finally, add deionized water and regulate solid content to 20%, obtain the compound leather water-proof fatting agent of a kind of fluorine silicon.
The leather sample specific performance of embodiment 1-3 detects:
Neutralization: put into 4 sheep samples that are numbered 0-3 in 4 rotary drums, neutralize respectively, washing, stuffing technique, wherein, adopt SA synthetic fat liquor (BASF AG), adopt respectively the fatting agent in embodiment 1-3 No. 1-3 for No. 0.
No. 0-4 leather sample carried out to thickness, tensile strength, pliability and water-repellancy and detect, after this waterproof currying agent stuffing, crust leather has good water resistance, and more soft, plentiful, and mechanical property also improves a lot, and concrete detected result is as shown in the table:
Figure 2013106902048100002DEST_PATH_IMAGE004
It is cited that content of the present invention is not limited to embodiment, and the conversion of any equivalence that those of ordinary skills take technical solution of the present invention by reading specification sheets of the present invention, is claim of the present invention and contains.

Claims (5)

1. a preparation method for the compound leather water-proof fatting agent of fluorine silicon, is characterized in that:
By following steps, realized:
Step 1: by ASA, perfluoroalkyl fluorine alcohol and catalyzer in its weight ratio 1:(0.6~0.9): the ratio hybrid reaction of (0.002~0.005), the condition of its reaction is: 80~150 ℃, the reaction times is 3~5 hours;
Step 2: system temperature is down to 50~70 ℃, in reaction product, add organo-silicon coupling agent and amination reagent to react, the weight ratio of organo-silicon coupling agent, amination reagent and ASA is (0.1~0.2): (0.3~0.4): 1, and the reaction times is 2~3 hours;
Wherein, described organo-silicon coupling agent is γ-glycidyl ether oxygen propyl trimethoxy silicane;
Step 3: maintenance system is temperature-resistant, adds NaOH solution to regulate pH value to 8~9.5 while stirring; Finally, add deionized water and regulate solid content to 10~20%, obtain the compound leather water-proof fatting agent of a kind of fluorine silicon.
2. the preparation method of the compound leather water-proof fatting agent of a kind of fluorine silicon according to claim 1, is characterized in that:
In step 1, perfluoroalkyl fluorine alcohol is selected from perfluor alkyl ethide hexanol, perfluor alkyl ethide octanol or perfluor alkyl ethide decyl alcohol.
3. the preparation method of the compound leather water-proof fatting agent of a kind of fluorine silicon according to claim 2, is characterized in that:
In step 1, catalyzer is selected from tosic acid, phosphoric acid or boric acid.
4. the preparation method of the compound leather water-proof fatting agent of a kind of fluorine silicon according to claim 3, is characterized in that:
In step 2, amination reagent is selected from diethylamine or triethylamine.
5. the compound leather water-proof fatting agent of fluorine silicon being made by the preparation method of the compound leather water-proof fatting agent of a kind of fluorine silicon claimed in claim 4.
CN201310690204.8A 2013-12-17 2013-12-17 A kind of preparation method of fluorine silicon composite waterproof leather fatliquor Expired - Fee Related CN103694414B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107031218A (en) * 2017-03-21 2017-08-11 华鸿控股集团有限公司 A kind of water-resistant type ultraviolet curing glass platinum technique

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101693927A (en) * 2009-10-21 2010-04-14 陕西科技大学 Long-chain alkyl alcohol modified ASA waterproof fatliquoring agent and process for preparing same
CN101696457A (en) * 2009-10-21 2010-04-21 陕西科技大学 Organic long-chain fluorine-alcohol modified ASA leather waterproof fat liquoring agent and preparation method thereof
CN101760967A (en) * 2008-11-14 2010-06-30 杨玉生 Waterproof and oilproof finishing agent for fabric and leather and preparation thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101760967A (en) * 2008-11-14 2010-06-30 杨玉生 Waterproof and oilproof finishing agent for fabric and leather and preparation thereof
CN101693927A (en) * 2009-10-21 2010-04-14 陕西科技大学 Long-chain alkyl alcohol modified ASA waterproof fatliquoring agent and process for preparing same
CN101696457A (en) * 2009-10-21 2010-04-21 陕西科技大学 Organic long-chain fluorine-alcohol modified ASA leather waterproof fat liquoring agent and preparation method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107031218A (en) * 2017-03-21 2017-08-11 华鸿控股集团有限公司 A kind of water-resistant type ultraviolet curing glass platinum technique

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