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Preparation method of special composite hot melt adhesive for polyvinyl chloride decorative board

A polyvinyl chloride and hot melt adhesive technology, applied in the direction of graft polymer adhesives, adhesives, adhesive types, etc., can solve the problems of inappropriate bonding of polyvinyl chloride decorative boards, and achieve high peel strength, The effect of fast construction and man-hour saving

Active Publication Date: 2013-12-04
SHANGHAI TIANYANG HOT MELT ADHESIVE CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the hot melt adhesive described in the above-mentioned patent is not suitable for the bonding of polyvinyl chloride decorative panels

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Accurately weigh 10.0g of low-density polyethylene with a melt index of 28.4g / 10min, 70.0g of water, 4.0g of xylene and 0.07g of alkylphenol polyoxyethylene ether OP-10 and add them to the three-port port with a return pipe and agitator In the flask, under the protection of nitrogen, stir and heat up to 75°C to swell for 1.5h, then heat up to 90°C, add 4.0g of acrylic acid and 0.25g of dibenzoyl peroxide, stir and reflux for 4h, then stop the reaction. The obtained product was filtered, washed with water and dried. According to NMR analysis and test, its acrylic acid grafting rate is 8.0%, and this product is blended with JCC-6200 copolyamide hot-melt adhesive powder with a melt index of 30g / 10min / 160°C at a mass ratio of 4.5: 1 to obtain a composite Hot-melt adhesive, the obtained hot-melt adhesive is used to bond the non-woven fabric and the PVC film, and the peel strength test is carried out with reference to the ministerial standard FZ / T01085-2000, and the peel stre...

Embodiment 2

[0022] Accurately weigh 10.0g of low-density polyethylene with a melt index of 23.2g / 10min, 80.0g of water, 3.2g of xylene and 0.065g of fatty alcohol polyoxyethylene ether AEO-9 and add them to a three-necked flask with a reflux tube and a stirrer , stirred and heated to 70°C to swell for 1 hour under the protection of nitrogen, then heated to 85°C, added 3.0 g of acrylic acid and 0.35 g of dibenzoyl peroxide, stirred and refluxed for 4.5 hours, then stopped the reaction. The obtained product was filtered, washed with water and dried. According to nuclear magnetic resonance analysis and test, its acrylic acid grafting rate is 6.43%, and the product is blended with JCC-9801 copolyamide hot melt adhesive powder with a melt index of 27g / 10min / 160°C at a mass ratio of 5.0: 1 to obtain a composite Hot-melt adhesive, the obtained hot-melt adhesive is used to bond the non-woven fabric and the PVC film, and the peel strength test is carried out with reference to the ministerial stand...

Embodiment 3

[0025] Accurately weigh 10.0g of low-density polyethylene with a melt index of 28.4g / 10min, 60.0g of water, 3.0g of xylene and 0.067g of nonylphenol polyoxyethylene ether NP-9 and add them to the three-port port with return pipe and stirrer In the flask, under the protection of nitrogen, stir and heat up to 65°C to swell for 1.5 h, then heat up to 85°C, add 2.5 g of acrylic acid and 0.2 g of dibenzoyl peroxide, stir and reflux for 3.5 h, then stop the reaction. The obtained product was filtered, washed with water and dried. According to NMR analysis and test, its acrylic acid grafting rate is 5.08%. The product is blended with JCC-7300 copolyamide hot melt adhesive powder with a melt index of 30g / 10min / 160°C in a mass ratio of 4.75: 1 to obtain a compound Hot-melt adhesive, the obtained hot-melt adhesive is used to bond the non-woven fabric and the PVC film, and the peel strength test is carried out with reference to the ministerial standard FZ / T01085-2000, and the peel streng...

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Abstract

The invention relates to a preparation method of a special composite hot melt adhesive for a polyvinyl chloride decorative board. The preparation method comprises the following steps: adding low-density polyethylene, dimethyl benzene, water and a non-ionic surface active agent into a three-necked flask with functions of stirring and backflow, heating up to 65-75 DEG C under the protection of nitrogen for performing swelling for 0.5-1.5 h, again heating up to 80-90 DEG C, then adding acrylic acid and benzoyl peroxide for performing backflow reaction for 2.5-4.5 h, then stopping heating, cooling to room temperature, filtering, performing washing for several times, and then drying to obtain low density polyethylene modified by the acrylic acid; then blending the obtained product with copolyamide hot melt adhesive according to a certain proportion so as to obtain the special composite hot melt adhesive for the polyvinyl chloride decorative board. The hot melt adhesive has the characteristics of high adhesive strength, fast construction, simple process, man-hour saving, low coat and the like.

Description

technical field [0001] The invention relates to a novel polyolefin / copolyamide composite hot-melt adhesive and a preparation method thereof, which is especially suitable for bonding polyvinyl chloride decorative boards. Background technique [0002] Before PVC decorative boards were widely used, most of the decoration methods in restaurants, karaoke halls and other places used to compound a layer of sponge on the base material, and then cover a layer of decorative panels on the outside of the sponge. This method needs on-site operation, the cost of labor and materials is high, and it cannot be used directly as a partition. PVC decorative board is a kind of non-woven felt decorative board, which can be mass-produced in a factory with low labor and material costs. It can be directly used as a partition for decoration in restaurants, karaoke halls, etc. The partition and soft bag are in place in one step, and it is moisturizing, Good heat insulation and sound absorption. It ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J151/06C09J177/00C08F255/02C08F2/18
Inventor 曾作祥周文李哲龙朱万育吴芳群沈艳
Owner SHANGHAI TIANYANG HOT MELT ADHESIVE CO LTD