Method for manufacturing base paper for electronic industry
A manufacturing method and technology of the electronic industry, applied in the field of paper manufacturing, can solve the problems of increasing production cost, slow production speed, slow dipping speed, etc., and achieve the effects of increasing production speed, reducing production cost and improving product quality
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Embodiment 1
[0022] Example 1: As shown in the attached figure, first prepare the phenolic resin: add phenol, tung oil, and p-benzenemethanesulfonic acid into the reaction kettle and stir, heat to 78-80°C for 25-30 minutes, and then react at 78-80°C After 2 hours, when the test viscosity reaches 40 poise, add triethanolamine to form tung oil phenol dimer, then add formaldehyde, triethylamine, and ammonia water to react at 90-95°C for 3 hours, and then start vacuum dehydration until the resin is transparent and penetrates into methanol to form The phenolic resin with a solid content of 52%, wherein the parts by weight of each raw material are: 1 part of tung oil, 1 part of phenol, 0.005 part of p-benzenemethanesulfonic acid, 0.006 part of triethanolamine, 2 parts of formaldehyde, 0.01 part of triethylamine, ammonia water 0.01 parts, 2 parts of methanol; then the rolls of cotton white paper are soaked in mixed resin at a speed of 68 m / min and then dried, and the dried paper is stacked into ei...
Embodiment 2
[0023] Example 2: First prepare the phenolic resin: add phenol, tung oil, and p-benzenemethanesulfonic acid into the reaction kettle and stir, heat to 78-82°C for 25-30 minutes, then react at 80-82°C for 2 hours, and the test viscosity reaches After 45 poise, add triethanolamine to generate tung oil phenol dimer, then add formaldehyde, triethylamine, and ammonia water to react at 95-100°C for 3.5 hours, and then start vacuum dehydration until the resin transparently penetrates into methanol to form phenolic formaldehyde with a solid content of 50%. Resin, wherein the parts by weight of each raw material are respectively: 1 part of tung oil, 6 parts of phenol, 0.0015 part of p-benzenemethanesulfonic acid, 0.0095 part of triethanolamine, 5 parts of formaldehyde, 0.04 part of triethylamine, 0.02 part of ammonia water, 6 parts of methanol ;Then the roll of cotton white paper is soaked with mixed resin at a speed of 70 m / min and then dried, and the dried paper is stacked into eight ...
Embodiment 3
[0024] Example 3: First prepare the phenolic resin: add phenol, tung oil, and p-benzenemethanesulfonic acid into the reaction kettle and stir, heat to 78-80° C. for 25-30 minutes, then react at 78-80° C. for 2 hours, and test the viscosity to reach After 43 poise, add triethanolamine to generate tung oil phenol dimer, then add formaldehyde, triethylamine, and ammonia water to react at 90-95°C for 4 hours, and then start vacuum dehydration until the resin is transparent and penetrates into methanol to form a phenolic formaldehyde with a solid content of 55%. Resin, wherein the parts by weight of each raw material are respectively: 1 part of tung oil, 2 parts of phenol, 0.0025 part of p-benzenemethanesulfonic acid, 0.008 part of triethanolamine, 4 parts of formaldehyde, 0.02 part of triethylamine, 0.015 part of ammonia water, 4 parts of methanol ;Then the roll of cotton white paper is soaked with mixed resin at a speed of 60 m / min and then dried, and the dried paper is stacked in...
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