Degradable bioplastic composite paper and preparation process thereof

A bioplastic and composite paper technology, applied in the field of papermaking, can solve problems such as high equipment and process requirements, increased environmental pollution pressure, poor degradability, etc., and achieve the effect of meeting strength requirements, meeting environmental protection requirements, and improving overall performance

Active Publication Date: 2020-10-02
新疆弘瑞达纤维有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The common problem of existing environmentally friendly paper is that in order to meet the requirements of environmental protection, it is necessary to add a certain proportion of inorganic substances or natural substances such as starch to the paper. When using a higher content of inorganic mineral powder or natural substances in the paper, the inorganic minerals The compatibility and dispersibility of the powder and the matrix resin are poor, and it is easy to cause surface de-powdering, affect the printability, and affect the stability of the product. When the filling amount is high, the equipment and process requirements are high, and the product cost is higher than that of ordinary paper. Several times, and when a higher content of resin is used, it is more similar to plastic, and its degradability is much worse than that of wood, which leads to an increase in environmental pollution pressure and does not meet many requirements for environmentally friendly paper, making the current research and development of environmentally friendly paper fall into a trap Dilemma
In addition, the strength of these cooperative environmentally friendly papers is also difficult to meet the requirements of special purposes, for example, when used as packaging materials, its tear strength may not be sufficient
Therefore, the current synthetic paper is difficult to compete with traditional paper in terms of quality, cost, and environmental protection, which hinders its production and application promotion.

Method used

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  • Degradable bioplastic composite paper and preparation process thereof
  • Degradable bioplastic composite paper and preparation process thereof
  • Degradable bioplastic composite paper and preparation process thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] After replacing the air in the 500mL round bottom flask with nitrogen, add 81.9g of succinic acid, 128.0g of 1,4-butanediol, 12.6g of lactic acid, and 88.4g of dimethyl terephthalate; Increase the temperature, react at 180°C for 4 hours, and remove the water generated during the reaction; after that, add 0.10g antimony acetate, 0.15g tributyltin oxide and 0.07g tetrabutyl titanate as catalysts and 0.2g Trimethyl phosphate was used as a stabilizer; subsequently, the temperature was raised to 246° C. and a polycondensation reaction was performed at this temperature and a reduced pressure of 0.3 Torr for 180 minutes. After the reaction, it was detected that the melt index (190°C, 2160g) of the degradable resin was 12.6g / 10min, the number average molecular weight was 39,000, and the melting point measured by DSC was 86°C.

[0055] Mix the degradable resin prepared above with starch (Shandong Fengtai Environmental Protection Technology Co., Ltd.) in a weight ratio of 7:3, fu...

Embodiment 2

[0057] According to the HJ / T340-2007 standard, the kraft chemical wood pulp production process (with reference to the method of CN104452467A embodiment 1, wherein the wood raw material adopts coniferous wood) is added to the pulp by adding a strength enhancer shown in 0.1wt% formula (II), A lightweight paper is produced with a density of 18.2 g / m 2 .

[0058] The bioplastic film obtained in Example 1 and the lightweight paper obtained in Example 2 are fed into the manufacturing equipment and adhered together to produce degradable bioplastic composite paper. The specific process is: the bioplastic film can be passed through The first feed roll is drawn into the system, the light weight paper can be drawn in with the second feed roll, and the paper is then passed through bonding rolls which apply a coating of soy protein as a binder to the paper One side of the paper so that the lightweight paper with a soy protein adhesive coating and the bioplastic film can be attached togeth...

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Abstract

The invention provides degradable bioplastic composite paper and a preparation process thereof. The degradable bioplastic composite paper at least comprises a first layer (1) containing bioplastic anda paper layer (3) as a second layer, and the first layer and the second layer are bonded together through an adhesive layer (2). The degradable biological plastic composite paper can overcome the adverse environmental influence caused by high-content plastic, and has excellent tensile strength performance and wet strength.

Description

technical field [0001] The invention belongs to the technical field of papermaking, and in particular relates to a degradable bioplastic composite paper and a preparation process thereof. Background technique [0002] With the emphasis on environmental protection, more and more people are aware of the harm that papermaking brings to the environment, and people's calls for environmentally friendly paper are getting higher and higher. Providing and using environmentally friendly paper is an important way to reduce environmental pressure. The environment and sustainability have become increasingly important factors in the design and specification of disposable paper products, as well as in their safe disposal after use. As a result of greater social responsibility and concern for the environment, through government regulations, institutional investors and consumer demand, companies are driven to produce more sustainable and environmentally safe products. [0003] Synthetic pa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B27/36B32B27/10B32B29/00B32B7/12B32B37/12C08J5/18C08L67/00C08L3/02C08G63/60B65D65/40
CPCB32B7/12B32B27/10B32B27/36B32B29/00B32B37/1284B32B2307/54B32B2307/5825B32B2307/7163B32B2307/75B32B2553/00B65D65/40B65D2565/381C08G63/60C08J5/18C08J2367/00C08J2403/02Y02W90/10
Inventor 石勇李忠陈琪鸿梁天华
Owner 新疆弘瑞达纤维有限公司
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