Phenolic plastic foam and production process thereof

A phenolic plastic and a production process technology, applied in the field of phenolic plastic foam, can solve the problems of inconvenient addition of reagents, unfavorable flower preservation, inconvenience in use, etc., and achieve the effects of convenient automatic addition of reagents, high molding speed, uniform and sufficient stirring

CN112940207APending Publication Date: 2021-06-11肖海风
7 Cites 1 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2021-06-11

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a phenolic plastic foam. The phenolic plastic foam is prepared from 600 Kg of phenol, 375 Kg of solid formaldehyde, 8 Kg of an alkali, 25 Kg of water, 5 Kg of formic acid and 25 Kg of urea. A production process of the phenolic plastic foam comprises the following steps: preparing phenolic resin glue, firstly pumping dissolved phenol into a reaction kettle, sequentially pumping paraformaldehyde and a dissolved alkali, starting to heat the solution from about 50 DEG C to 55 DEG C for 20 min, continuing to heat the solution to 65-70 DEG C for 1.5 h, and then starting heat preservation at 72-82 DEG C. The pH value of the phenolic plastic foam is superior to that of similar products at home and abroad, most of the similar products at present have the pH value of 2-3 and can be neutral only after being neutralized by ammonia water and ammonia gas, produced phenolic plastic foam changes the PH value of existing phenolic resin, the water storage capacity and the production efficiency are improved, bad gas is discharged, the pH value reaches 5-6, plant root burning is avoided, the forming speed is high, and the phenolic plastic foam can be used for fresh-keeping and seedling raising of fresh cut flowers.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the technical field of phenolic plastic foam, in particular to a phenolic plastic foam and a production process thereof. Background technique

[0002] Phenolic resin is also called bakelite, also known as bakelite powder. It is commonly used in foam molding as flower arrangement mud, which plays the role of water supply for flowers. The pH value of traditional phenolic resin is around 7, which is not conducive to the preservation of flowers and contains many This kind of bad gas affects the preservation of flower arrangements, poor water absorption, slow molding speed, and the mixer used in the production of phenolic plastic foam has low work efficiency, inconvenient use, inconvenient addition of reagents, insufficient and uneven mixing, therefore, It is necessary to design a phenolic plastic foam and its production process. Contents of the invention

[0003] The object of the present invention is to provide a kind of phenol...

Examples

Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0026] see Figure 1-6 , the present invention provides a technical solution:

[0027] A phenolic plastic foam. The formula of the phenolic plastic foam is: 600Kg of phenol, 375Kg of solid formaldehyde, 8kg of alkali, 25Kg of water, 5Kg of formic acid and 25Kg of urea.

[0028] A kind of production technology of phenolic plastic foam, comprises the steps:

[0029] Among them, in the above step 1, to make phenolic resin glue, first pump the dissolved phenol i...