A high-strength composite corrugated cardboard and its production process
A corrugated cardboard, production process technology, applied in the direction of paper/cardboard layered products, special paper, adhesive types, etc., can solve the problems of low initial adhesion, low molecular chain, low bonding strength, etc., to prevent toxicity Effects of over-strength, strong hydrophilicity, and enhanced heat resistance during processing
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Embodiment 1
[0030] A production process of high-strength composite corrugated cardboard, comprising the steps of:
[0031] The first step is to adhere the modified starch base film to the surface of the facial paper with an environmentally friendly adhesive, and control the coating amount of the environmentally friendly adhesive on the surface of the facial paper to 5g / m 2 Afterwards, the surface paper and the inner paper are respectively bonded to the upper and lower surfaces of the hard corrugated paper layer to obtain a composite corrugated paper semi-finished product;
[0032]The second step is to put the semi-finished composite corrugated paper into a drying cylinder, control the temperature to 115° C., and keep the moisture content at 3%, and let it stand for 24 hours to obtain the high-strength composite corrugated paper board.
[0033] Described modified starch base film is made by following method:
[0034] (1) Starch, sodium carbonate and sodium nitrate were mixed in a beaker a...
Embodiment 2
[0041] The environmentally friendly adhesive is made of the following raw materials in parts by weight: 160 parts of SBS resin, 25 parts of toluene, 20 parts of dodecanethiol, 280 parts of ethyl acetate, 320 parts of gasoline, 1 part of initiator, 4 parts of maleic anhydride, 2 parts of para hydroquinone, 2 parts rosin.
[0042] Described environmental protection adhesive is made by following method:
[0043] (1) Smash SBS into a three-necked flask, pass in nitrogen, heat up to 75°C for preheating, then mix toluene, dodecanethiol, ethyl acetate and gasoline into the beaker, heat in a water bath at 40°C and stir magnetically, Then add benzoyl peroxide, raise the temperature to 55°C, and stir at a speed of 120r / min for 20min, then raise the temperature to 75°C, and react at this temperature for 1h to prepare mixture A;
[0044] (2) Add the mixture A dropwise to the three-necked flask through a peristaltic pump, and control the dropping time to 2h. After the dropwise addition, a...
Embodiment 3
[0047] The environmentally friendly adhesive is made of the following raw materials in parts by weight: 170 parts of SBS resin, 40 parts of toluene, 25 parts of dodecanethiol, 280 parts of ethyl acetate, 340 parts of gasoline, 2 parts of initiator, 4.5 parts of maleic anhydride, 3 parts of para hydroquinone, 2 parts rosin.
[0048] Described environmental protection adhesive is made by following method:
[0049] (1) Smash SBS into a three-necked flask, pass in nitrogen, heat up to 75°C for preheating, then mix toluene, dodecanethiol, ethyl acetate and gasoline into the beaker, heat in a water bath at 40°C and stir magnetically, Then add benzoyl peroxide, raise the temperature to 55°C, and stir at a speed of 120r / min for 20min, then raise the temperature to 75°C, and react at this temperature for 1h to prepare mixture A;
[0050] (2) Add the mixture A dropwise to the three-necked flask through a peristaltic pump, and control the dropping time to 2h. After the dropwise addition...
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Abstract
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