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A method for preparing aliphatic polyester composites from surface-modified ctmp fibers

A technology of aliphatic polyester and composite materials, which is applied in fiber processing, plant fiber, textiles and papermaking, etc., can solve problems such as scarcity, achieve low cost, reduce agglomeration, and improve comprehensive performance

Active Publication Date: 2015-11-18
SHAANXI HUAHAOXUAN NEW ENERGY TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, how to overcome the agglomeration of biomass fibers and improve the degree of dispersion of biomass fibers in the matrix, that is, related reports on internal compatibilizers, are relatively scarce at present.

Method used

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  • A method for preparing aliphatic polyester composites from surface-modified ctmp fibers
  • A method for preparing aliphatic polyester composites from surface-modified ctmp fibers
  • A method for preparing aliphatic polyester composites from surface-modified ctmp fibers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] (1) Hydrophobic pretreatment of the surface of CTMP fibers by debonding agent:

[0055] First, dilute the debonding agent produced by Finland Kemira Company with deionized water into a 2% debonding agent solution by mass fraction;

[0056] Secondly, after dissolving the CTMP fiber for 3 minutes, configure it into a CTMP fiber solution with a mass fraction of 1%;

[0057] Finally, add the above-mentioned debonding agent solution into the above-mentioned CTMP fiber solution, and soak for 15 minutes to form a soaked CTMP fiber solution, wherein the mass ratio of the debonding agent to the dry CTMP fiber is 0.5:100;

[0058] (2) Preparation of CTMP fiber pulp sheet and dry dissociation of CTMP fiber after hydrophobic treatment:

[0059] Prepare the pretreated CTMP fiber into a CTMP fiber pulp sheet with a quantitative weight of 400g / ㎡ on the laboratory sheet machine, and dry it by blasting at 80°C;

[0060] Dry and dissociate the dried paddles in a high-speed mixer at a s...

Embodiment 2

[0066] (1) Hydrophobic pretreatment of the surface of CTMP fibers by debonding agent:

[0067] First, the deionized water produced by a certain company in Shandong Province is diluted into a bond-breaking agent solution with a mass fraction of 3%;

[0068] Secondly, after dissolving the CTMP fiber for 3 minutes, configure it into a CTMP fiber solution with a mass fraction of 1%;

[0069] Finally, add the above-mentioned debonding agent solution into the above-mentioned CTMP fiber solution, and soak for 15 minutes to form a soaked CTMP fiber solution, wherein the mass ratio of the debonding agent to the dry CTMP fiber is 4:100;

[0070] (2) Preparation of CTMP fiber pulp sheet and dry dissociation of CTMP fiber after hydrophobic treatment:

[0071] Prepare the pretreated CTMP fiber into a CTMP fiber pulp sheet with a quantitative weight of 400g / ㎡ on the laboratory sheet machine, and dry it by blasting at 80°C;

[0072] Dry and dissociate the dried paddles in a high-speed mixe...

Embodiment 3

[0077] (1) Hydrophobic pretreatment of the surface of CTMP fibers by debonding agent:

[0078] First, dilute the debonding agent produced by a company in Deyang, Sichuan, with deionized water into a debonding agent solution with a mass fraction of 5%;

[0079] Secondly, after dissolving the CTMP fiber for 3 minutes, configure it into a CTMP fiber solution with a mass fraction of 1%;

[0080] Finally, add the above-mentioned debonding agent solution into the above-mentioned CTMP fiber solution, and soak for 15 minutes to form a soaked CTMP fiber solution, wherein the mass ratio of debonding agent to dry CTMP fiber is 5:100;

[0081] (2) Preparation of CTMP fiber pulp sheet and dry dissociation of CTMP fiber after hydrophobic treatment:

[0082] The pretreated masson pine CTMP fiber was prepared into a CTMP fiber pulp sheet with a quantitative weight of 400g / ㎡ on the laboratory sheet machine, and was blown and dried at 80°C;

[0083] Dry and dissociate the dried paddles in a h...

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Abstract

The invention discloses a method for preparing an aliphatic polyester composite material through surface modified chemithermomechanical pulp (CTMP) fibers. The method comprises the following steps: (1) performing surface hydrophobic pretreatment on the CTMP fibers by using an unbonding agent; (2) preparing CTMP fiber pulp sheets and performing dry dissociation on the CTMP fibers subjected to hydrophobic treatment; and (3) compounding the CTMP fibers subjected to hydrophobic modification and a thermoplastic resin matrix. According to the fibers subjected to surface hydrophobic treatment, the hydrogen bonding action between the fibers is weakened, the aggregation effect in a polymer matrix is reduced, and the interfacial strength of the composite material is improved, so that the composite material has excellent comprehensive performance, particularly mechanical property. The method can be used for multiple aliphatic polyester matrixes, the raw material limitation is low, and the composite material is wide in application and can be used for the fields of household appliances, automobile industry, packaging and articles of everyday use. The method is low in production cost, contributes to popularization and application and has high significance for improving the utilization level of biomass raw materials, relieving oil resource crisis and protecting the environment.

Description

technical field [0001] The invention relates to the field of composite materials, in particular to a method for hydrophobically modifying the surface of CTMP fibers with a debonding agent to prepare aliphatic polyester composite materials. Background technique [0002] Polymer materials have become an important pillar of modern science and technology and national economic construction. Most of their raw materials come from petroleum, and most of them are difficult to degrade. The increasing scarcity of petroleum resources and the pressure of environmental protection make the development of low-carbon, environmentally friendly polymer materials an important task. Biomass fiber-polymer composite materials are a new type of green composite materials. General-purpose plastics (such as PE, PP, PVC, etc.) or biodegradable plastics (mainly referring to aliphatic polyester materials) can be used as biomass fiber-polymer composite materials. matrix material for composite materials. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/02C08L67/04C08L97/02D06M13/00D06M13/188D06M15/00D06M101/06
Inventor 岳小鹏徐永建周乐群畅平朱振峰张鼎军
Owner SHAANXI HUAHAOXUAN NEW ENERGY TECH DEV CO LTD
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