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Porous polyolefin sorbent material containing wetting agent

A technology of absorbent and wetting agent, applied in the field of absorbent materials, which can solve the problems of stability, processability and negative impact on absorption characteristics

Inactive Publication Date: 2001-07-11
KIMBERLY-CLARK WORLDWIDE INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, although antistatic properties are often required, the use of traditional ionic compounds with antistatic properties can negatively affect the emulsion stability, processability and absorption properties of absorbent materials

Method used

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  • Porous polyolefin sorbent material containing wetting agent
  • Porous polyolefin sorbent material containing wetting agent
  • Porous polyolefin sorbent material containing wetting agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] Example 1: An 11.5 oz. per square yard meltblown fabric containing polypropylene fibers was prepared with a chemical wetting agent in the fabric. In the chemical wetting agent, the weight ratio of polyoxyethylene decyl alcohol:poly(ethylene glycol) monolaurate:octyl polyglycoside is 1:1:0.6, and the added amount is 0.7wt%. The chemical wetting agent was applied to the fibers according to the method generally described with reference to FIG. 3 . The absorbent properties of the webs were measured for various liquids using the spot test method described above. The results are shown in Table 1 below. The treated absorbent material has the following antistatic properties:

[0053] Surface resistivity (longitudinal, front): 5.48×10 10 Ω

[0054] Surface resistivity (longitudinal, anvil): 4.70×10 10 Ω

[0055] Static decay (50%, positive charge, transverse, anvil): 0.043s

[0056] Static decay (50%, positive charge, lateral, front): 0.020s

[0057] Static decay (50%, n...

Embodiment 2

[0060] Example 2: Preparation of 2 oz. per square yard of melt-blown fiber fabric containing polypropylene fibers with a chemical wetting agent in the fabric. The weight ratio of polyoxyethylene decyl alcohol:poly(ethylene glycol) monolaurate:octyl polyglycoside in the chemical wetting agent is 1:1:0.6. The amount (by weight) of the chemical wetting agent added and the results of the spot test on various liquids are shown in Table 2 below.

[0061] Absorption time of different chemical agents (s) (drop test)

Embodiment 3

[0062] Example 3: A nonwoven web of polypropylene melt-blown fibers was prepared, with a basis weight of about 34g / m 2 , which contain chemical wetting agents. The chemical wetting agent included 1:0.6:0.3 (by weight) poly(ethylene glycol) monolaurate:octylpolyglycoside:sodium lauryl sulfate. The addition amount of chemical wetting agent is 1.9wt%, and the spot test time of the treated nonwoven fiber web is as follows: 25% NaOH is 1~2s, 40% NaOH is 25s, 75% H 2 SO 4 2~3s, 98%H 2 SO 4 3s for water and 1s for water.

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Abstract

A versatile sorbent material is provided comprising a fibrous sheet having applied thereto a wetting chemistry comprising (i) a poly glycoside; (ii) a fatty acid ester ethoxylate; and (iii) one or more surfactants selected from the group consisting of alkyl and aryl alcohol ethoxylates, alkyl sulfonates and sulfates, alcohol ether sulfates, alkyl phosphates and phosphonates, alkyl sulfosuccinates and sulfated fatty acid esters. A sorbent material is provided having excellent electrical resistivity and good absorption properties for a broad range of liquids including paraffin oil, water, sulfuric acid and sodium hydroxide.

Description

[0001] The present invention relates to absorbent materials and, in particular, the present invention relates to absorbent materials and wipes for industrial use. Background of the invention [0002] In general, industrial absorbent materials have been used in the past to absorb or "suck up" waste liquids from spills, leaks, or otherwise. As an example, absorbent materials have been used as a means of collecting or absorbing oil and oil-based liquids. In addition, absorbents have likewise been used to collect or absorb aqueous liquids. As a specific example, absorbent materials have been used as floor mats in shops or factories to ensure that work areas do not become slippery, which would otherwise create unsafe problems due to liquid spills on the floor. Absorbent wipes have also been used to remove undesirable liquids from work surfaces and other surfaces. In addition, absorbent materials have also been used as a means of trapping harmful or environmentally damaging liquid...

Claims

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Application Information

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IPC IPC(8): B01J20/26B01J20/28B01J20/32
CPCB01J20/26B01J20/32B01J20/28033B01J20/28023B01J20/321B01J20/3272B01J20/3274B01J20/3291Y10T428/249955Y10T442/2418Y10T442/2484Y10T442/2508
Inventor A·亚希尔欧伊G·H·亚当
Owner KIMBERLY-CLARK WORLDWIDE INC