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Broad-spectrum durable antibacterial granular urea formaldehyde molding compound

A urea-formaldehyde molding compound and granular technology, applied in the field of granular urea-formaldehyde molding compound, can solve the problems of excessive generation of coarse powder, low drying efficiency, large diameter of clusters, etc., achieve excellent antibacterial effect, increase antistatic, anti-fragmentation Enhanced effect

Pending Publication Date: 2022-05-13
溧阳市乔森塑料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that there are many agglomerates after kneading and dehydration, the diameter of the agglomerates is large, and there are many coarse powders after ball milling, and the subsequent drying efficiency is low.

Method used

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  • Broad-spectrum durable antibacterial granular urea formaldehyde molding compound
  • Broad-spectrum durable antibacterial granular urea formaldehyde molding compound
  • Broad-spectrum durable antibacterial granular urea formaldehyde molding compound

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] The broad-spectrum durable antibacterial granular urea-formaldehyde molding compound of the present embodiment includes the components in parts by weight: 1200 parts of urea, 2000 parts of formaldehyde, 120 parts of melamine, 22 parts of four-needle zinc oxide whiskers, and hexamethylene 120 parts of tetraamine, 20 parts of curing agent, 90 parts of talc, 540 parts of coniferous pine pulp, 15 parts of stearic acid, 20 parts of rutile titanium dioxide, and 2.2 parts of organic yellow.

[0067] see figure 1 , the preparation method of the broad-spectrum durable antibacterial granular urea-formaldehyde molding compound of the present embodiment 1, comprising the following steps:

[0068]S1: Surface modification: the four-needle zinc oxide whiskers are subjected to activation treatment surface modification by using a silane coupling agent, and the activation treatment surface modification is carried out in a high-speed stirrer. Add the four-needle zinc oxide whiskers into ...

Embodiment 2

[0079] The broad-spectrum durable antibacterial granular urea-formaldehyde molding compound of the present embodiment includes components in parts by weight: 1150 parts of urea, 2400 parts of formaldehyde, 80 parts of melamine, 33 parts of four-needle zinc oxide whiskers, and hexamethylene 100 parts of tetraamine, 28 parts of curing agent, 60 parts of calcium carbonate, 600 parts of coniferous pine pulp, 15 parts of zinc stearate, 20 parts of rutile titanium dioxide, and 2 parts of high-pigment carbon black.

[0080] The preparation steps of the broad-spectrum durable antibacterial granular urea-formaldehyde molding compound of the present embodiment 2 are:

[0081] S1: Surface modification: the four-needle zinc oxide whiskers are subjected to activation treatment surface modification by using a silane coupling agent, and the activation treatment surface modification is carried out in a high-speed stirrer. Add four-needle zinc oxide whiskers into the device, spray diluted sila...

Embodiment 3

[0092] The broad-spectrum durable antibacterial granular urea-formaldehyde molding compound of the present embodiment includes the components in parts by weight: 1000 parts of urea, 2600 parts of formaldehyde, 40 parts of melamine, 44 parts of four needle-shaped zinc oxide whiskers, and hexamethylene 80 parts of tetramine, 30 parts of curing agent, 30 parts of precipitated barium sulfate, 640 parts of coniferous pine pulp, 19 parts of ethylene stearic acid amide, 16 parts of rutile titanium dioxide, and 2 parts of organic blue.

[0093] The preparation method of the broad-spectrum durable antibacterial granular urea-formaldehyde molding compound in Example 3 is the same as that in Example 2, except that the number of raw materials input is different.

[0094] The raw material formulation components of Examples 1 to 3 of the present invention are shown in Table 1 in parts by weight.

[0095] Table 1 Raw material formula component table

[0096]

[0097] The invention uses A...

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Abstract

The invention relates to a broad-spectrum durable antibacterial granular urea formaldehyde molding compound, which is prepared from the following ingredients in parts by weight: 1000 to 1200 parts of urea, 2000 to 2600 parts of formaldehyde, 40 to 120 parts of melamine, 18 to 45 parts of tetrapod-like zinc oxide whiskers, 80 to 120 parts of hexamethylenetetramine, 20 to 30 parts of curing agents, 30 to 90 parts of inorganic filling materials, 540 to 648 parts of wood pulp (wood pulp), 15 to 20 parts of lubricating agents, 16 to 20 parts of titanium dioxide and 1.5 to 2.2 parts of coloring pigments. The broad-spectrum long-lasting antibacterial granular urea formaldehyde molding compound product has the antibacterial rate of 99.99% or above on pseudomonas aeruginosa, acinetobacter baumannii, enterobacter aerogenes and the like after a cold and hot fatigue test, the antibacterial activity value is greater than 5.4, and the processability and the mechanical strength are improved.

Description

technical field [0001] The invention relates to a urea-formaldehyde molding compound, in particular to a granular urea-formaldehyde molding compound with four needle-shaped zinc oxide whiskers added technical background [0002] Urea-formaldehyde molding compound (commonly known as electric jade powder) has been born for over a century, and its main state is powder and granule. my country's urea-formaldehyde molding compound was first born in 1958, and the real scale was formed in the 1980s. At the beginning of this century, it became the world's largest producer. [0003] Granular urea-formaldehyde molding compound was born in the 1960s. With the development of processing machinery, high-speed automatic presses and thermosetting plastic injection molding machines were developed. The urea-formaldehyde molding compound is required to be granulated from powder to meet the automatic metering of processing equipment. - Requirements for constant volume measurement. The Italian ...

Claims

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Application Information

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IPC IPC(8): C08L61/30C08L97/02C08K9/06C08K7/08
CPCC08L61/30C08K2201/005C08L97/02C08K9/06C08K7/08
Inventor 陈瑞福秦光熙陆平陈何
Owner 溧阳市乔森塑料有限公司
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