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Modified APAO resin and preparation method thereof

A modification and resin technology, applied in the direction of adhesive additives, adhesives, polymer adhesive additives, etc., can solve the problems of low processing cost and weak thermal shear resistance, and achieve energy saving, low VOCS, process Simple and effective process

Pending Publication Date: 2021-04-20
松川工业材料(无锡)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the problems mentioned in the background technology, the purpose of the present invention is to provide a modified APAO resin and its preparation method, thereby improving the problem of weak thermal shear resistance of APAO products and simple production process, which can be prepared without improving the reactor , to further realize the effect of low processing cost

Method used

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  • Modified APAO resin and preparation method thereof
  • Modified APAO resin and preparation method thereof
  • Modified APAO resin and preparation method thereof

Examples

Experimental program
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Effect test

preparation example Construction

[0033] A preparation method of modified APAO resin, comprising the following steps: step 1, heating the reactor to 180°C, adding amorphous polyolefin A, amorphous polyolefin B and antioxidant F into the reactor for melting and stirring and pumping vacuum;

[0034] Step 2. Control the stable rotation speed. After the amorphous polyolefin A, amorphous polyolefin B and antioxidant F are completely melted, add metallocene-catalyzed polyolefin C, metallocene-catalyzed polyolefin D and modified propylene homopolymer E , heating, stirring and vacuumizing;

[0035] Step 3. Maintain the temperature of the reactor at 180°C until the materials of each part are mixed into a uniform and transparent liquid;

[0036] Step 4, stop vacuuming and stirring, and carry out discharging to obtain modified APAO.

Embodiment example 1

[0037] Example 1: Heat the reactor to 180°C, take 400g of amorphous polyolefin 8770 and 390g of 8300 into the reactor for melting and stirring and vacuumize. After the amorphous polyolefin is completely melted, add 5g of antioxidant 1010, antioxidant 168 5g, metallocene catalyzed polyolefin 6202 150g, modified propylene homopolymer 6003 50g, heat, stir and vacuumize, keep the temperature of the reactor at 180 ℃, until all parts of the material are mixed into a uniform, transparent liquid; stop pumping Vacuum and stir, and then discharge to obtain 1kg of modified APAO.

[0038] Take 50g of the prepared modified APAO in a beaker, place it in a 200°C oven, and observe the appearance, viscosity, and degree of carbonization after 24h / 48h / 72h. Another 50g of modified APAO was put in the glue gun, and the perforated PP sheet was bonded, and the SAFT test was carried out in the SAFT testing machine.

[0039] The experimental data are shown in Table 1:

[0040]

[0041] Table 1

Embodiment example 2

[0042] Example 2: Heat the reactor to 180°C, take 450g of amorphous polyolefin 8825L and 400g of 8770L and add them to the reactor for melting and stirring and vacuumize. After the amorphous polyolefin is completely melted, add 1010 5g of antioxidant, antioxidant 5g of agent 168, 50g of metallocene-catalyzed polyolefin 8780, and 90g of modified propylene homopolymer 6003, heat, stir and vacuumize, and keep the temperature of the reactor at 180°C until all parts of the material are mixed into a uniform and transparent liquid. Stop vacuuming and stirring, discharge, and obtain 1kg of modified APAO. Take 50g of the prepared modified APAO in a beaker, place it in an oven at 200°C, and observe the appearance, viscosity, and degree of carbonization after 24h / 48h / 72h. Take another 50g of modified APAO in the glue gun, bond the perforated PP board, and carry out SAFT test in the SAFT testing machine; increasing the ratio of amorphous polyolefin and modified polypropylene can improve S...

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Abstract

The invention relates to an adhesive raw material and a preparation process thereof, in particular to a modified APAO resin and a preparation method thereof, and aims to solve the problem that an APAO product is weak in hot shearing resistance, simple in production process, capable of being prepared without improving a reaction kettle and capable of further achieving the effect of low processing cost, and the modified APAO resin comprises the following components in percentage by weight: 20%-60% of amorphous polyolefin A; 20%-60% of amorphous polyolefin B; 5%-30% of metallocene catalyzed polyolefin C; 5%-30% of metallocene catalyzed polyolefin D; 5%-30% of a modified propylene homopolymer E; 0.1%-1% of an antioxidant F; and 0.1%-1% of an antioxidant G. The amorphous polyolefin A and the amorphous polyolefin B are two of 8300, 8770 and 8825 L; wherein 8300 has a viscosity of 3300 mPa.s at 190 DEG C, and the softening point is 125 DEG C; the viscosity of 8770 is 8500 mPa.s at the temperature of 190 DEG C, and the softening point is 155 DEG C; and the viscosity of 8825L is 30000mPa. S at 190 DEG C, and the softening point is 143 DEG C.

Description

technical field [0001] The invention relates to an adhesive raw material and a preparation process thereof, in particular to a modified APAO resin and a preparation method thereof. Background technique [0002] APAO is a thermoplastic polymer whose physical state changes with temperature within a certain range, while its chemical properties remain unchanged. It does not require solvents when used, does not produce irritating odors when melted, and does not produce toxic and harmful volatiles. It is an environmentally friendly material. APAO is solid at room temperature, and will become liquid when heated to a predetermined temperature. It can be made into APAO hot melt adhesive by adding tackifying resin, plasticizer, etc.; it can also be partially added to EVA hot melt adhesive to improve EVA. Heat-resistant, solvent-resistant, and corrosion-resistant properties of hot-melt adhesives; it can also be used as a modified resin for rubber-based pressure-sensitive adhesives to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/02C08L23/12C08L23/26C08K5/134C08K5/526C09J123/02C09J11/08
Inventor 崔程王松蔡钊亮王琳
Owner 松川工业材料(无锡)有限公司