CN102642228A - Method for manufacturing self-plasticizing bamboo board - Google Patents

Abstract

The invention discloses a method for manufacturing a self-plasticizing bamboo board. The method comprises the following steps of (1) material preparation: crashing a bamboo material into bamboo powder with a size of 20-200 meshes, uniformly mixing the bamboo powder and plasticizing initiator according to a mass ratio of m bamboo powder to m plasticizing initiator being equal to 100 to 0.1 to 100 to 0.4, obtaining a bamboo powder raw material; (2) self-plasticizing molding: uniformly placing the bamboo powder raw material in a stainless steel die, and then rising the temperature and increasing the pressure, when the temperature rises at 160 to 200 DEG C, and when the pressure is increased at 9 to 21 MPa, keeping the pressure and temperature for 10 to 90 min, and then keeping the pressure, stopping heating, slowly cooling to a room temperature, relieving the pressure, obtaining the self-plasticizing bamboo board. The method provided by the invention can be easily realized, the operation is convenient, the production cost is low, thus, the method is suitable for being used for large-scale production; and moreover, the processing and utilization routes of the bamboo material are widened, and larger utilization of bamboo material resources is realized simultaneously.

Description

A kind of from the manufacturing approach that plastifies bamboo clappers

Technical field

The present invention relates to a kind of manufacturing approach that plastifies bamboo clappers certainly, specifically, relate to a kind of method of utilizing the bamboo wood manufacturing to plastify bamboo clappers certainly.

Background technology

Bamboo wood is one of world-renowned fast growing plant, also is that the first-selected speed in the torrid zone and subtropical zone is coined one of woods plant.At present, bamboo wood mainly is distributed in ground such as Asia, America, Africa, and particularly states such as China, India, Japan, Burma plant bamboo wood artificial forest in a large number, and area reaches 2,000 ten thousand hectares, produces 18000000 tons of bamboo woods per year.The county (city) of China's bamboo grove area above 10,000 hectares has more than 130, and the gross area reaches 7,000,000 hectares.Bamboo wood artificial forest become a useful person the cycle short, output is high, form is perfectly straight, material is closely knit, fiber is elongated, major product has glued board, floor, particieboard, fiberboard, summer sleeping mat, pulping and paper-making, handicraft etc., annual value of production reaches tens billion of units.Yet; Bamboo wood exists defectives such as the physical and mechanical property anisotropy is big, hollow structure; Cause bamboo processing utilization efficient low and produce the serious wasting of resources, and in processing, store, transportation, be prone to go mouldy in using rotten, be difficult on high-end product, use.If bamboo wood is after plastics processing; Can be widely used in high value added product fields such as packaging for foodstuff, open-air engineering, view furniture; Also can be made into the component of machine of products such as aircraft, automobile, boats and ships, is to solve the wasting of resources and the low key of benefit in the bamboo processing.

Plasticizing is meant that at first plastics reach flow regime and have good plastic overall process through heating in barrel; Along with plastifying technology is applied; Increasing raw material (comprising biological material) all can carry out plastics processing; To improve raw material availability and processing characteristics, reach the resource maximum using.Nineteen forty-seven, a kind of method that plastifies the ripple record has been delivered in Haley research, subsequently; 0ngil Gonzalez should be used as in human pathology and association area thereof plastifying material and having discussed and prospect; Milch has found carbohydrate collagen plasticizing function, because the fast development of plastics industry at that time, it is single to add plastic components; Research and preparation difficulty are less relatively, make carbohydrate plasticizing research by stranded; Along with the petroleum resources growing tension, in recent years, the plasticizing of biological material research has become the research focus.

In timber (bamboo wood) plasticizing manufacture field, mainly contain two kinds of technology paths: the one, resin is immersed in timber or the bamboo wood, rely on the plastics property of resin and impel timber or bamboo wood plasticizing; The voidage of timber is high; Resin is easy to immerse, and plasticizing effect is good, and the bamboo wood quality is fine and close; Resin is difficult to immerse, and causes the bamboo wood plasticizing effect not good; The 2nd, plastics are evenly mixed with timber (bamboo wood); Through technological formings such as extrusion molding, mold pressing, injections, i.e. wood and plastic composite or bamboo-plastic combined material, and the bamboo-plastic combined material of developing is difficult to industrialized utilization because of interface amalgamation difference; Simultaneously; The plastics addition is at least 30%, price is 2～5 times of wooden bamboo raw materials, cause cost significantly to increase, and value of the product synergy is not obvious.In order to solve bamboo wood plasticizing effect and plasticizing cost simultaneously, carrying out the bamboo wood cell membrane is the key that realizes bamboo wood plasticizing secondary industryization from the research of plasticizing.Under the support of departments such as state natural sciences fund committee, Hunan Province Science and Technology Department; Applicant of the present invention has carried out the scientific research and the research of technique of system to plastifying bamboo clappers certainly; Found that under high pressure bamboo wood has the characteristic from plasticizing, and invented this technology, this technology is easy to realization, easy to operate; Realized the maximum using of bamboo timber resource, technical support is provided for increasing bamboo people income.

Summary of the invention

Technical problem to be solved by this invention provides and a kind ofly is easy to realize, easy to operate, the manufacturing approach that plastifies bamboo clappers certainly that production cost is low.

In order to solve the problems of the technologies described above, what the present invention adopted is a kind of from the manufacturing approach that plastifies bamboo clappers, is made up of following steps:

(1) gets the raw materials ready: bamboo wood is ground into 20 orders～200 purpose bamboo powder, presses mass ratio m _{The bamboo powder}: m _{The plasticizing initator}=100: 0.1～100: 0.4, the bamboo powder is evenly mixed with the plasticizing initator, obtain the bamboo powder raw material; Wherein bamboo powder moisture content is 20%～50%; The plasticizing initator is by mass ratio m by polyvinyl alcohol, polyethylene glycol _{Polyvinyl alcohol}: m _{Polyethylene glycol}=0.3: 10～1: 10 mix;

(2) from plasticizing forming: the bamboo powder raw material is evenly mated formation in stainless steel mould, begins then to heat up, boost, when temperature rises to 160 ℃～200 ℃, pressure and rises to 9MPa～21MPa; Pressure-maintaining and heat-preservation 10 minutes～90 minutes; Keep-up pressure then, stop heating, slowly cool to room temperature; Removal pressure promptly obtains from plastifying bamboo clappers; In wherein mating formation, the bamboo powder raw material face of mating formation can not surpass apart from stainless steel mould horizontal plane suitable for reading 1 centimetre; Be 12 hours～16 hours cool time; Stainless steel mould prepares according to Product Design.

Adopt the manufacturing approach that plastifies bamboo clappers certainly of technique scheme, be easy to realize, easy to operate; Production cost is low, is fit to large-scale production, and product has the physicochemical property and the processing characteristics of rigid plastics; Widened the bamboo processing utilization approach; Realize the utilization of bigizationner of bamboo timber resource economy simultaneously, can increase self-employed tree cultivator's income, significant to building a harmonious society.This invention can produce remarkable economical and social benefit, have excellent popularization and be worth.

The specific embodiment

Can further be expressly understood the present invention through specific embodiment of the present invention given below, but following embodiment is not to qualification of the present invention.

Embodiment 1:

A kind of from the manufacturing approach that plastifies bamboo clappers, form by following steps:

(1) gets the raw materials ready: bamboo wood is ground into 20 purpose bamboo powder, presses mass ratio m _{The bamboo powder}: m _{Plasticizing is drawn Send out agent}=100: 0.1, the bamboo powder is evenly mixed with the plasticizing initator, obtain the bamboo powder raw material; Wherein bamboo powder moisture content is 20%; The plasticizing initator is by mass ratio m by polyvinyl alcohol, polyethylene glycol _{Polyvinyl alcohol}: m _{Polyethylene glycol}=1: 10 mix;

(2) from plasticizing forming: the bamboo powder raw material is evenly mated formation in stainless steel mould, begin then to heat up, boost, when temperature rise to 160 ℃, when pressure rises to 9MPa; Pressure-maintaining and heat-preservation 90 minutes; Keep-up pressure then, stop heating, slowly cool to room temperature; Removal pressure promptly obtains from plastifying bamboo clappers; In wherein mating formation, the bamboo powder raw material face of mating formation can not surpass apart from stainless steel mould horizontal plane suitable for reading 1 centimetre; Be 12 hours cool time; Stainless steel mould prepares according to Product Design.

Embodiment 2:

A kind of from the manufacturing approach that plastifies bamboo clappers, form by following steps:

(1) gets the raw materials ready: bamboo wood is ground into 80 purpose bamboo powder, presses mass ratio m _{The bamboo powder}: m _{Plasticizing is drawn Send out agent}=100: 0.2, the bamboo powder is evenly mixed with the plasticizing initator, obtain the bamboo powder raw material; Wherein bamboo powder moisture content is 30%; The plasticizing initator is by mass ratio m by polyvinyl alcohol, polyethylene glycol _{Polyvinyl alcohol}: m _{Polyethylene glycol}=0.5: 10 mix;

(2) from plasticizing forming: the bamboo powder raw material is evenly mated formation in stainless steel mould, begin then to heat up, boost, when temperature rise to 170 ℃, when pressure rises to 12MPa; Pressure-maintaining and heat-preservation 30 minutes; Keep-up pressure then, stop heating, slowly cool to room temperature; Removal pressure promptly obtains from plastifying bamboo clappers; In wherein mating formation, the bamboo powder raw material face of mating formation can not surpass apart from stainless steel mould horizontal plane suitable for reading 1 centimetre; Be 14 hours cool time; Stainless steel mould prepares according to Product Design.

Embodiment 3:

A kind of from the manufacturing approach that plastifies bamboo clappers, form by following steps:

(1) gets the raw materials ready: bamboo wood is ground into 150 purpose bamboo powder, presses mass ratio m _{The bamboo powder}: m _{Plasticizing Initator}=100: 0.3, the bamboo powder is evenly mixed with the plasticizing initator, obtain the bamboo powder raw material; Wherein bamboo powder moisture content is 40%; The plasticizing initator is by mass ratio m by polyvinyl alcohol, polyethylene glycol _{Polyvinyl alcohol}: m _{Polyethylene glycol}=0.8: 10 mix;

(2) from plasticizing forming: the bamboo powder raw material is evenly mated formation in stainless steel mould, begin then to heat up, boost, when temperature rise to 180 ℃, when pressure rises to 18MPa; Pressure-maintaining and heat-preservation 60 minutes; Keep-up pressure then, stop heating, slowly cool to room temperature; Removal pressure promptly obtains from plastifying bamboo clappers; In wherein mating formation, the bamboo powder raw material face of mating formation can not surpass apart from stainless steel mould horizontal plane suitable for reading 1 centimetre; Be 15 hours cool time; Stainless steel mould prepares according to Product Design.

Embodiment 4:

A kind of from the manufacturing approach that plastifies bamboo clappers, form by following steps:

(1) gets the raw materials ready: bamboo wood is ground into 200 purpose bamboo powder, presses mass ratio m _{The bamboo powder}: m _{Plasticizing Initator}=100: 0.4, the bamboo powder is evenly mixed with the plasticizing initator, obtain the bamboo powder raw material; Wherein bamboo powder moisture content is 50%; The plasticizing initator is by mass ratio m by polyvinyl alcohol, polyethylene glycol _{Polyvinyl alcohol}: m _{Polyethylene glycol}=0.3: 10 mix;

(2) from plasticizing forming: the bamboo powder raw material is evenly mated formation in stainless steel mould, begin then to heat up, boost, when temperature rise to 200 ℃, when pressure rises to 21MPa; Pressure-maintaining and heat-preservation 10 minutes; Keep-up pressure then, stop heating, slowly cool to room temperature; Removal pressure promptly obtains from plastifying bamboo clappers; In wherein mating formation, the bamboo powder raw material face of mating formation can not surpass apart from stainless steel mould horizontal plane suitable for reading 1 centimetre; Be 16 hours cool time; Stainless steel mould prepares according to Product Design.

Claims (1)

1. one kind from plastifying the manufacturing approach of bamboo clappers, it is characterized in that: be made up of following steps:

(1) gets the raw materials ready: bamboo wood is ground into 20 orders～200 purpose bamboo powder, presses mass ratio m _{The bamboo powder}: m _{The plasticizing initator}=100: 0.1～100: 0.4, the bamboo powder is evenly mixed with the plasticizing initator, obtain the bamboo powder raw material; Wherein bamboo powder moisture content is 20%～50%; The plasticizing initator is by mass ratio m by polyvinyl alcohol, polyethylene glycol _{Polyvinyl alcohol}: m _{Polyethylene glycol}=0.3: 10～1: 10 mix;

(2) from plasticizing forming: the bamboo powder raw material is evenly mated formation in stainless steel mould, begins then to heat up, boost, when temperature rises to 160 ℃～200 ℃, pressure and rises to 9MPa～21MPa; Pressure-maintaining and heat-preservation 10 minutes～90 minutes; Keep-up pressure then, stop heating, slowly cool to room temperature; Removal pressure promptly obtains from plastifying bamboo clappers; In wherein mating formation, the bamboo powder raw material face of mating formation can not surpass apart from stainless steel mould horizontal plane suitable for reading 1 centimetre; Be 12 hours～16 hours cool time; Stainless steel mould prepares according to Product Design.