Synthesis method of polyamide polyamine resin

A technology of polyamide polyamine resin and synthesis method, which is applied in coating, paper coating, paper and other directions, can solve the problems of fluctuation of water content of paper web, insufficient softness of finished paper, degraded quality of finished paper, etc., and achieve a good foundation. Paper quality, improved properties, reduced corrosion effects

Active Publication Date: 2017-06-27
佛山市帕里达新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The water permeability of the felt becomes poor at the end of use, causing the moisture content of the paper web to fluctuate greatly and causing application problems
When the paper is bonded to the drying cylinder, the r

Method used

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  • Synthesis method of polyamide polyamine resin
  • Synthesis method of polyamide polyamine resin

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0027] Example 1:

[0028] Weigh 146 grams of adipic acid (1.0 mol) and 360 grams of deionized water into a four-necked flask, stir to form a slurry, evacuate and blow in nitrogen, and then add 52.6 grams of diethylenetriamine (0.51 mol) and 60.2 grams of N. -2-Aminoethyl-1,3-propanediamine (0.50mol), heated to 180℃ with electric heating, kept for 2h, collect about 265 grams of water removed during the reaction, add 220 grams of distilled water to obtain polyamide intermediate The index is 50% solid content, 130 cps viscosity, and pH 10.8.

[0029] 100g (0.227mol) of the above polyamide aqueous solution, 26.4g (0.227mol) of N,N-tetramethylethylenediamine, 125g of deionized water, 0.1g of potassium carbonate, heated to 38°C during stirring, dripped Add quaternized crosslinking agent, including 16.5g (0.114mol) of epichlorohydrin and 10.5g (0.114mol) of dichloroethyl ether, dripping for 1h, then heat to 63℃, keep it for 2h, and wait until the thermal viscosity reaches 55~ At 60 cps...

Example Embodiment

[0030] Example 2:

[0031] Weigh 146 grams of adipic acid (1.0 mol) and 250 grams of deionized water into a four-necked flask, stir to form a slurry, evacuate and blow in nitrogen, and then add 62.8 grams of diethylenetriamine (0.61 mol) and 48.1 grams of N -2-Aminoethyl-1,3-propanediamine (0.40mol), heated to 175℃ with electric heating, kept for 2.5h, collected about 285 grams of water removed during the reaction, and added 220 grams of distilled water to obtain polyamide The index of the intermediate is 50% solid content, 380 cps viscosity, and pH 10.5.

[0032] The above-mentioned polyamide aqueous solution 100g (0.227mol), N,N-tetramethylethylenediamine 14.2g (0.122mol), deionized water 140g, potassium carbonate 0.1g, heated to 32℃ during stirring, dripped Add quaternary ammonium crosslinking agent, including 13.7 g (0.141 mol) of epichlorohydrin, 14.0 g (0.098 mol) of dichloroethyl ether, dripping time 1h, then heat to 55℃, keep for 2h, and wait until the thermal viscosity re...

Example Embodiment

[0033] Example 3:

[0034] Weigh 146 grams of adipic acid (1.0 mol) and 120 grams of deionized water into a four-necked flask, stir to form a slurry, evacuate and blow in nitrogen, and then add 42.5 grams of diethylenetriamine (0.41 mol) and 77.0 grams of N -2-Aminoethyl-1,3-propanediamine (0.60mol), heated to 160℃ with electric heating, kept for 3h, collected about 236g of water removed during the reaction, and added 225g of distilled water to obtain polyamide intermediate Its indicators are 50% solid content, 670 cps viscosity, and pH 9.7.

[0035] 100g (0.227mol) of the above polyamide aqueous solution, 45.2g (0.390mol) of N,N-tetramethylethylenediamine, 130g of deionized water, 0.08g of sodium carbonate, heated to 45°C during stirring, dripped Add quaternized crosslinking agent, including 14.7g (0.160mol) of epichlorohydrin and 39g (0.275mol) of dichloroethyl ether, dripping for 1h, then heat to 65℃, keep for 2h, and wait until the thermal viscosity reaches 55-60cps Immediate...

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Abstract

The invention discloses a synthesis method of polyamide polyamine resin. The synthesis method of the polyamide polyamine resin comprises the following steps: performing high-temperature polymerization on adipic acid, diethylenetriamine, and N-2-aminoethyl-1,3-propane diamine to obtain a polyamide polyamine intermediate; mixing the polyamine intermediate and N,N-tetramethylethylenediamine, taking carbonate as a catalyst, dropwise adding dichloroether and epoxy chloropropane, and performing a quaternization crosslinking reaction to obtain a final polymer. The polymer contains low chloridions, so that corrosion to a Yankee drying cylinder is reduced; the polymer can be singly added into slurry, and also can be combined with a stripping agent and a phosphate improver to be applied to production of toilet paper, so that the characteristic of a coating can be effectively improved; imported products can be replaced effectively, and the technological competitiveness of products is improved. The polymer provided by the invention mainly serves as a crinkling adhesive to be applied to production and manufacturing of toilet paper, kitchen paper, facial tissue and paper napkin, and also can be applied in the fields of coating, printing ink, adhesive, sewage treatment, textile printing and dyeing, biological medicine and the like.

Description

technical field [0001] The invention relates to a synthesis method of resin, in particular to a synthesis method of polyamide polyamine resin. Background technique [0002] The desired properties of the tissue, including softness, bulk, stretch and absorbency, are achieved by steam heating the Yankee cylinder and doctor blades. The wet web is dewatered primarily at the nip of the press rolls while the sheet is transferred to the surface of the dryer cylinder. The paper web contains 35-50% moisture, and the paper sheet is further dried on the drying cylinder to a dryness of 90-96%, and then scraped off with a scraper. The mechanical action of the knife causes the bonds between the fibers of the paper to break and form an internal microfold structure, a process known as creping. [0003] In order to crease, the web must be bonded to the surface of the Yankee cylinder. The art of achieving good creping qualities relies on obtaining and maintaining an appropriate level of adh...

Claims

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Application Information

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IPC IPC(8): C08G73/02D21H17/56D21H19/10
CPCD21H17/56D21H19/10C08G73/0293
Inventor 朱先梅
Owner 佛山市帕里达新材料科技有限公司
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